Precipitation ( rain ) totals for East Snohomish County, Washington State for 2007 (with previous year's summaries)
These measurments are taken in an area about 30 miles northeast of Seattle, Washington; near the foothills of the Cascade mountains. (Latitude 47.847996°   Longitude -122.150403°) This area is forested but the measurments in "the clearing" are taken in an area approximately .35 acres with trees surrounding. There are also measurements taken in "the forest". "The forest" is an area that includes second growth fir, and hemlock trees approximately 95 years old from approximately 35 feet tall to approximately 85 feet tall and some big leaf maples about 50 feet tall. The container is in an area with 50% cover in the winter - the area is typical of what is found in healthy second growth forests in the Pacific Northwest. The containers have straight sides, flat bottoms. This puts the surface area to volume ratio at 1 to 1 (with the exception of the calibrated devices) in other words if an inch of water is measured inside the container, it will represent an inch of precipitation that has fallen on the ground ( Newton BBS )¹.
Accuracy of measurements: plus or minus five percent of the actual rainfall; precision plus or minus .0150 inches. In the totals, anything over 4 places to the right of the decimal is rounded. Here, a trace of rain refers to the condition where rain fell, but not enough to be accurately measured. ( less than .015 inches ). The containers are checked in the morning, precipitation is measured and then the containers are emptied.Note: The amounts listed for each date represent the amount of rain 24 hours prior to the measurment During periods of fog the containers are not emptied until the fog lifts permanently.
A measuring device and several commercially made rain guages which follow the principles outlined at the beginning of this page are used to record the amounts of precipitation. For the comparisions between the forest and the clearing measurments, a consistant method of measuring is used with a marked ruler in the forest location and in the clearing location. Container "R" is a 3/4 inch diameter round guage and container "S" is a rectangular container. These containers are placed in different locations to enable an overall picture of the rainfall total. This site is useful for demonstrating the difference between rainfall in the forest and outside of the forest, and for getting a general idea about rainfall. No entries for dates indicate no measurable rainfall. Differences in measurments are due to wind scattering the droplets differently in different areas; and squirrels birds and raccoons drinking the water. The problem with the wildlife disturbing the water has been mimimized (as of March 2006).

Please note: There are differences in the amount of rainfall in containers R,S, and G which are located in "the clearing". This is because of the close proximity of trees and the effect of wind causing random dispersion of water from large leaves of big leaf maples. The catagories "clearing" and "forest" have identical containers but are located over 100 feet apart in completely different "forest" cover.

Since the rainfall here (in the forest) has virtually no impervious surfaces to deal with and there is a normally dense covering of forest understory plants and large fir trees present; the effect of precipitation is completely different than it would be in a city with roads, buildings, parking lots, thousands of vehicles and modified terrain, or in a clearcut (logged) area where the vegetation has been removed and the topsoil compacted by heavy equipment. In both of these situations, water from precipitation runs off rapidly and can (and does) cause massive destruction. There is no measurable runoff anywhere in the forest with the exception of the roof of the house that is here. The water from that structure does not stay on the surface more than 8 hours; there is enough topsoil and herbage to absorb all of that runoff. The measurments made in another area in the county will be different but the water in another area is not absorbed by this soil. The purpose of this information is to reinforce the suggestion that measurements made here are relevant here and will show the difference between what happens in a forest compared to what happens in areas not forested, or locations with large areas of impervious surfaces.

This site should not be interpreted as an authoritative source for quantitative precipitation records in the Pacific Northwest area in general; but as a reasonably accurate indication of what happens to rainfall in a forested area; and as a record of the frequency of rainfall periods and general seasonal weather conditions in this location. Also this website will hopefully act as yet another starting place for important questions such as:

What difference does it make whether or not forests (collections of trees and the associated native plants) are converted into shopping malls and residential housing areas?
Do we really need forests?
Are housing developments, cities, and shopping malls more important than having forests undisturbed?

To help answer these questions this site can provide some information. First, note that almost twice as much rain reaches the ground in the clearing compared to in the forest, and even less snow. Also, there is no measurable loss of topsoil from runoff in the forest. It is also clear that the forest moderates temperature in both the winter and the summer. Where does that rain water go?
1 References:
ProfHoff 634, Ric Rupnik, David R. Cook, Don Yee, Richard E. Barrans Jr., Ph.D., Wendell Bechtold, meteorologist.
"Rain Gauge Design Differences". Online posting. 4/24/2003. Ask A Scientist Weather Archive. accessed 07 Jan. 2006.
http://www.newton.dep.anl.gov/askasci/wea00/wea00159.htm

This is a part of the Newton BBS which is here: http://www.newton.dep.anl.gov
More scientific information can be found here: http://www.dep.anl.gov/ and here: http://www.aps.anl.gov/


A simplified summary of rainfall totals for 2005, 2006, and 2007 can be found here.

back to main rainfall page
back to 2005 rainfall page
back to 2006 rainfall page
2007 precipitation
container R is 7/8 inch diameter calibrated round container
container S is a 1inch X 2inch calibrated rectangular container
container B is a 3 inch dia round flat bottom container
container G is a 2inch diameter 2 foot long calibrated container with a 5 inch funnel at the top
Weather conditions and Precipitation in Inches for January 2007
Date Clearing
container B
Forest
container B
Clearing
container G
Forest
container G
Clearing
container R
Clearing
container S
source of water temp conditions
04 1.7500 .8750 1.2600 .6000 1.5500 1.4500 rain   25 mph winds
06 .5000 .2900 .6000 .3000 .6000 .5000 rain    
07 .3750 .2400 .3500 .2400 .4000 .3500 rain   40 mph winds
08 low 40's 40 mph winds
09 low 40's 40 mph winds
10 .5000 0 .5000 0 .5000 .5000 snow    
11 6 1.5 6 1.5 6 6 snow (became 1 inch of water in
clearing measurement)
   
12 17 deg F clear and sunny
13 0 0 0 0 0 0 trace of snow    
16 1 0 1 0 1 1 snow    
18 .6250 .6870 1.1000 .3200 1 1.1000 rain    
24 56 deg F sunny and clear
Totals (not including snow) 4.375 2.765 4.91 1.78 5.05 5.00 rain    
7 in. of snow fell in Jan. resulting in 1 inch of water in the measuring devices in the clearing and no measurable water in the forest containers.

Weather conditions and Precipitation in Inches for February 2007
Date Clearing
container B
Forest
container B
Clearing
container G
Forest
container G
Clearing
container R
Clearing
container S
source of water temp conditions
04             trace of rain    
06             trace of rain    
10             rain    
11             rain    
14             trace of rain    
18 .875   .875   .875 .875 up to feb 18:
.875 inchs of rain total;
0 in forest
  Sunny and warm
till evening
then wind and rain
19 .125           rain   35 to 40 mph wind
all day and night
1/8 inch of
rain in the clearing
20 .7   .375 .125 .5 .6 rain    
24 .4688 .0625 .4375 .0938 .59 .4375 rain low 30's daytime  
27 .5 .185 .5 .1875 .5 .5 rain low 30's daytime  
28               snow 1.5 inches 28 deg F  
Totals (not including snow) 2.6688 .2475 2.1875 .4063 2.465 2.4125 rain    
1.5 in. of snow fell in Feb.

Weather conditions and Precipitation in Inches for March 2007
Date Clearing
container B
Forest
container B
Clearing
container G
Forest
container G
Clearing
container R
Clearing
container S
source of water temp conditions
1             snow 8 inches total 29 degrees F day calm and sunny
4             rain 40's daytime windy overcast
7 3 1.0625 2 1 2 2 rain    
9   .5 .3750 .36 .5 .4 rain    
11                 heavy wind 35mph
40 mph gusts all day
13 .5 .25 .5 .1875 .6 .5 rain 50's day time 20 mph winds
14 .125 trace .125 trace .125 .125 rain    
15             only a trace of rain    
16 .125 trace .125 trace .125 .19 rain   cloudy light rain
17 .250 trace .250 trace .300 .250 rain 59 deg F partly cloudy / sun
19 1 .3750 .8750 .4375 1 .8500 snow and rain mixed mid 30's  
21             rain   partly cloudy
22             rain   partly cloudy / rain
23 .3750 .0200 .3750 .0200 .4000 .4000 rain    
24 .2500 .0938 .2500 .0625 .2800 .2500 rain 50 deg F very windy 20 mph
27 .2500 trace .2500 trace .3800 .2500 rain 55° F  
28             rain 55° F partly sunny
29             rain 50° F partly sunny
Totals (not including snow) 5.875 2.3013 5.125 2.0675 5.710 5.215 rain    
8 in. of snow fell in March

Weather conditions and Precipitation in Inches for April 2007
Date Clearing
container B
Forest
container B
Clearing
container G
Forest
container G
Clearing
container R
Clearing
container S
source of water temp conditions
02             1/4 inch of snow 35° F  
03 .4375 .1875 .5000 .2500 .5500 .5000 rain / snow¹   sunny mostly clear
07               72° F sunny and warm
08             rain   cloudy and light rain
09                 very windy 20 mph and light rain
14             rain   cloudy and very heavy rain
15 1.2500 .2500 1.0000 .2500 1.2000 1.0000 rain 55° partly cloudy some sun
18 .5625 .2800 .4000 .2500 .5500 .4500 rain   partly cloudy
19             56° F partly cloudy
20             57° F mostly sunny
22 0 0 0 0 0 0 trace of rain    
23             60° F sunny and clear
24 0 0 0 0 0 0 trace of rain   cloudy
25 0 0 0 0 0 0 trace of rain   partly cloudy
26 0 0 0 0 0 0 trace of rain   cloudy
27 0 0 0 0 0 0 trace of rain   cloudy
28 0 0 0 0 0 0 trace of rain   cloudy
29 .2000 0 .2 0 .2 .2 rain 60° F sunny and clear
Totals 2.45 .7175 2.1 .75 2.5 2.15 rain lo 35°, hi 72° 8 days sun, 3 days clear
.25 in. of snow fell in April

Weather conditions and Precipitation in Inches for May 2007
Date Clearing
container B
Forest
container B
Clearing
container G
Forest
container G
Clearing
container R
Clearing
container S
source of water temp conditions
1 .1 .1 .26 .1 .30 .26 rain 58° partly cloudy
2 .2 .1 .125 .1 .15 .15 rain 50° partly cloudy
3 .5 0 .4375 0 .5 .42 rain 57° partly cloudy
4 .28 .0625 .26 .0625 .29 .27 rain 48° cloudy
5             trace of rain 57° cloudy
6               57° cloudy
7 .11 0 .1 0 .1 .1 rain    
8             rain 56° partly cloudy
9               58° sunny
10               58° sunny
11               65° sunny
12               59° cloudy
13 .1 0 .1 0 .1 .1 rain 56° cloudy
14             rain    
15               83° sunny and clear
16               60° cloudy
17               60° cloudy
18             rain 68° cloudy
19             rain 70° sunny
20             rain 60° cloudy
21 1.05 .45 1.40 .38 1.05 1.05 rain    
22 .25 .0625 .25 .12 .25 .25 rain 68° partly cloudy
28 .25 trace .25 trace .4 .4 rain    
Totals 2.84 .775 3.1825 .7625 3.14 3.00 rain lo 48°, hi 70° 5 days sun, 5 days clear, 9 days cldy

Weather conditions and Precipitation in Inches for June 2007
Date Clearing
container B
Forest
container B
Clearing
container G
Forest
container G
Clearing
container R
Clearing
container S
source of water temp conditions
1             n/a 75 Sunny
2             n/a 85 Sunny
3             n/a 85 Sunny
4             n/a 80 Sunny
5             n/a 58 Cloudy
6 .45 .125 .32 .125 .4 .39 rain   Cloudy
7 .23 .1 .25 .13 .25 .2 rain 53 partly cloudy
8             rain 64 AM clear/ pm ptly cldy
9 .55 .09375 .35 .12 .39 .29 rain   partly cloudy
10             rain 58 cloudy
11             rain 61 cloudy
12             rain   partly cloudy
13             n/a    
14 .1   .1   .1   rain   partly cloudy
15 n/a    
16 .3125 .0625 .26 .19 .4 .38 rain   partly cloudy
17             n/a cloudy
18             n/a   partly cloudy
19 .4 .25 .35 .19 .42 .4 rain   clear
20             n/a    
21             n/a    
22             n/a    
23             n/a    
24             n/a   thunder storms
25 1.5 .8 1.2 ,75 1.4 1.2 rain   partlly cloudy
26             n/a    
27             n/a    
28             n/a    
29 .1563 .0313 .25 .05 .3 .3 rain    
30             n/a    
31             n/a    
Totals 3.6988 1.463 3.08 1.555 3.66 3.16 rain lo 53, hi 85 7 days sun, 6 days clear

Weather conditions and Precipitation in Inches for July 2007
Date Clearing
container B
Forest
container B
Clearing
container G
Forest
container G
Clearing
container R
Clearing
container S
source of water temp conditions
3             n/a 70's  
4             n/a 70's  
5             n/a 70's  
6             n/a 70's  
7             n/a 70's  
8             n/a 70's  
9             n/a upper 70's  
10             n/a 88 Clear
11             n/a 93 Clear
12             n/a 79 parlty cloudy
14 .1 0 .1 0 .1 .1 rain 70's thunderstorms
18 .3125 .05 .27 .05 .3 .3 rain    
20             rain    
21 .55        .22 .5 .2 .5 .42 rain    
22 .875 .49 .7 .49 .8 .65 rain    
23 trace trace trace trace trace trace rain    
              rain    
              rain    
              rain    
              rain    
Totals 1.8375 .76 1.57 .74 1.7 1.47 rain lo 70, hi 93

Weather conditions and Precipitation in Inches for August 2007
Date Clearing
container B
Forest
container B
Clearing
container G
Forest
container G
Clearing
container R
Clearing
container S
source of water temp conditions
7 trace trace trace trace trace trace mist
10 trace trace trace trace trace trace mist
19 1.375 1 1.23 .75 1.3 1.15 rain 62
20 .51 .375 .5 .3 .6 .4 rain 61
25 .1 .1 .1 .1 .1 .1 rain 65
Totals 1.985 1.475 1.83 1.15 1.9 1.65 rain lo 61
Weather conditions and Precipitation in Inches for September 2007
Date Clearing
container B
Forest
container B
Clearing
container G
Forest
container G
Clearing
container R
Clearing
container S
source of water temp conditions
4 .18 .05 .2 .05 .2 .2 rain 65 partly cloudy
5             n/a 70 partly cloudy
17 .4 .23 .39 .22 .41 .41 rain 60 cloudy rain
19 .2 .05 .18 .05 .18 .19 rain 58 cloudy rain
25 .1 0 .1 0 .12 .1 rain 54 cloudy
28 .375 .375 .4 .29 .5 .5 rain 49 cloudy
30 .375 .05 ..32 .05 .31 .3
Totals 1.630 .413 1.59 .66 1.72 1.70 rain lo 54 hi 70
Weather conditions and Precipitation in Inches for October 2007
Date Clearing
container B
Forest
container B
Clearing
container G
Forest
container G
Clearing
container R
Clearing
container S
source of water temp conditions
1 .5 .27 .45 .26 .5 .43
2 .1875 .125 .2 .16 .2 .21 rain 52 windy 25 mph
5 .375 .1 .3 .083 .39 .38 rain 42 cloudy
9 .375 .375 .3 .3 .4 .3 rain 58 cloudy rain
11 .0625 0 .15 0 .15 .12 rain 54 cloudy
15 .09 0 .11 0 .1 .1 rain 49 cloudy
18             wind storm 45 mph
20 .875 .4375 .8 .4 1.05 .75 rain 49 cloudy
22 .0938 .01 .18 .01 .2 .16
Totals 2.5408 1.3175 2.49 1.213 2.99 2.45 rain
Weather conditions and Precipitation in Inches for November 2007
Date Clearing
container B
Forest
container B
Clearing
container G
Forest
container G
Clearing
container R
Clearing
container S
source of water temp conditions
1 .2 .125 .25 .125 .3 .25 rain
7 .2 .125 .25 .125 .3 .25 rain
8 .25 .063 .125 .08 .2 .2 rain cloudy
10 .312 .11 .27 .1 .38 .3 rain cloudy rain
12 0 0 0 0 0 0 rain Major wind storm 45 mph here 90 mph gusts in Bellingham
13 .52 .25 .5 .26 .61 .54 rain cloudy
15 .24 .05 .22 .05 .27 .21
16 .49 .157 .42 .125 .5 .4 rain cloudy
18 .625 .25 .50 .27 .61 .52 first freeze
23 .26 .125 .25 .110 .3 .29
27 .27 ..125 .26 .19 .50 .21
Totals 3.367 1.38 2.93 1.453 3.97 2.92 rain
Weather conditions and Precipitation in Inches for December 2007
Date Clearing
container B
Forest
container B
Clearing
container G
Forest
container G
Clearing
container R
Clearing
container S
source of water temp conditions
1 snow 3 inches high 20's
3 2.75 2.7 2.25 2.2 2.7 1.55 rain low 40's
4 1.25 1.12 .9 .8 1.2 .3 rain low 40's cloudy, windy
9 snow 1/2 inch
13 snow
17 .85 .27 .8 .26 1.00 .79 light snow
20 1.031 .49 .85 .35 1.05 .9 rain
23 .51 .28 .5 .27 .68 .5 rain
24 .76 .5 .745 .5 .79 .89 rain
28 .625 .2031 ..490 ..2400 .650 ..500 rain
Totals 7.782 5.5631 6.535 4.62 8.07 5.43 rain and snow
Totals for the year 2007 40.3490 19.1790 37.5290 17.1180 42.8750 36.558 rain and snow

Summary of the weather here in 2007:

January 5 2007: A strong windstorm hit at about 10:00 pm and the power was out for a few hours here.
This was a strong storm with wind gusts at about 50 mph and heavy rain. The sky cleared at about 2:30 AM as the winds
died down. Another one is on the way for Sunday.
January 9 2007: 40 mph wind gusts today.
January 12 2007: Temp. got down to 17 deg. F. and skies were clear.
January 24: Sunny and warm 56 deg. F.
October 18: Windstorm - 45 mph winds. Leaves still on trees. Power was out for several hours, but much longer in other areas.
October 22: Warm temperatures 68 degrees here. windy 20 mph.
November 13: Major windstorm 35 mph sustained winds here.   90 mph gusts in Bellingham Wa.
November 27: 1 inch of snow in the evening.
December 2: 3 inches of snow.
December 3 and 4: Very heavy wind and rain 3 inches of rain in 2 days
December 9 and 13 Light snow 1/2 inch.
December 28 windy. 20 mph sustained speeds.

Summary of the weather here in 2006:

Jan 2006 total + Dec 2005 total : 23.784 inches
Jan 2006 total + Dec 2005 total in the forest : 5.4617 inches

Feb 3,4,5 strong windstorm. Winds in excess of 50 mph. Snapped an 18inch diameter hemlock tree in half
Blew down an 80 foot tall fir tree 30 inches in diameter at shoulder height
Feb 13/14 snow approx 1/2 inch. Most melted on ground.

March 10 6:00 pm P.S.T. hail/snow 1.6 inches.

Last half of June: dry and hot with several days in excess of 90 degrees F.

There was some light mist early in July but not enough to measure here. Essentially there was only 1 day of measurable rainfall here in the month of July. The temperature in the immediate area outside of this small forest got up to 98 degrees F; (much hotter near pavement and blacktop) but never got above 90 degrees F here in the forest in the month of July, and additionally the temperature in the house never got above 82 degrees F.

As of August 28 there has only been 1 day when there was any measurable precipitation in the month of August. In the past 73 days we have had .21 inches of precipitation. Last year for the same time period there was .61 inches and it was spread out over more often occurances so the vegetation did not dry out; and furthermore on August 29th of last year there was .5 inches of rain which would bring the total to 1.11 inches which means (unless it rains tomorrow) there was over five times more rain last year than now in the same seasonal interval and the precipitation was more evenly distributed over time last year.This dry weather is taking its toll on the hemlock and maple trees here.
August 29 2006: Rain started this morning at 9:15 AM pdt and by 9:45 AM it was moderate to heavy and steady - what would be considered normal rainfall by a person familiar with the weather patterns in this area over the last half-century.
10:30 AM .25 inches of rain since 9:15 AM.
September 10 2006: The first cold morning since the beginning of summer. 52 degrees F at 07:19 AM pdt in "the clearing".
September 14 2006: Last year as of this date we had 1.34 inches total; this year we have 1.65 inches total. That is in this location. More this year than last year. The total for the entire month of September last year was 1.715 inches.The total up to this date is 37.31 inches for this year (2006). Last year (2005) up to this same time the total was 22.8 inches ( Last year (2005) the winter was the one of the driest on record and virtually no snow fell in the mountains - most ski areas were closed - no appreciable rain fell in January or Feburary).

October 29th: precipitation in the form of hail lasted less than 10 minutes.

November 4: There was an omnious red sunrise among the storm clouds this am along with brisk wind (about 15 mph gusts). The wind has been picking up steadily nothing serious yet... 3 storms on the way according to weather service. Temps near 60 deg F past 2 days.

November 5,6,7: There has been severe flooding in the areas around major rivers and creeks in the pacific northwest. This exact location, however, received much less rainfall than those areas to the south, north or east (3.73 inches since the beginning of November. It is interesting to note that in the cover of the forest only 1.81 inches of rain reached the surface - the amount of water on the ground in the forest was less than half of that in the open and it was all absorbed and held in the ground because of the trees and associated understory vegetation). The wind on the 5th and 6th was heavy: 35 mph gusts. Temperatures in the high 50's.

November 10: The total this month up to today is 5.92 inches in the clearing and 3.26 inches in the forest. The total last year at this time: 4.56 inches in the clearing.

November 13: The total this month up to today is 7.7325 inches in the clearing and 4.406 inches in the forest. The total last year at this time: 5.998 inches in the clearing.
November 15: A strong windstorm came through starting on the 14th and lasting through about 10:00 pm pst on the 15th. Numerous branches were snapped off but no major damage occured here. Estimate of highest gusts near the house: about 30-35 mph; at about 75 feet higher - likely closer to 45 mph. Other parts of the Pacific Northwest had it much worse and there were many downed trees and some damage to buildings. This was a strong November weather system with lots of rain and wind.
November 18: Temperature 58 degrees F at 1:00 pm pst. no rain.
Novemter 19: Temperature 51 degrees F at 10:00 am pst. rain.
Novemter 28: Temperature 16 degrees F at 8:00 am pst. total snow fall past 3 days: 8 inches in the clearing
1.2 inches in the forest. More snow reached the ground on the 28th because the trees were already loaded with
snow. The evening of the 27th traffic was gridlocked for hours in Snohomish county. EXTREMELY dangerous driving
conditions in this area.
December 14/15: A powerful wind storm occurred with 65-70mph wind gusts here and over 80 mph in other areas.
This was the third in a series of storm systems that passed through in the past week bringing heavy winds and rain. It
Left 1.5 million people without electricity. This storm caused severe damage throughout the entire Pacific Northwest
region of Washington state. The most damaging winds lasted only about 6 hours but the effects were devastating. A
number of people lost their lives in this weather event due to falling trees from the heavy winds, carbon monoxide
poisioning from improper use of generators and gas powered portable stoves, and flooding. This storm was much stronger
than the one that occured in Feburary of this year; it blew down an 80 foot tall fir tree 2.5 feet in diameter, and a
60 foot tall alder tree one foot in diameter that severly damaged 2 buildings on this property; and snapped a 14 inch
diameter 75 foot tall hemlock in half and blew the top half 75 feet into another building on the property.

Summary of the weather here in 2005:

Over this past year (2004/2005), the winter was drier that most on record. Virtually no snow fell in the Cascades and the ski areas were not opened; however this has been a wet spring. According to records of tree growth, (get records of drought from tree ring growth records at the NOAA site) it rains here quite often; and there have been hot dry spells in the past. The volume of rain is what I am recording here; however it is also important to consider the time period over which the rain accumulates. Most of the rainfall usually occurs here in the fall and winter months. Light rain and mist/fog and/or cloudy conditions are "normal" in the late spring and summer; not repeated torrential downpours like what we have seen here since the end of March. The moderation of weather has changed, along with (search for the word "rainfall") the winter weather. Many of the glaciers in the North Cascades have melted considerably and some have disappeared completely because of a global warming trend. This is the part to be VERY concered about; if you are one of those who think global warming is a "myth" or "not a real problem", you had better take a very close look at this website: to find out more from those who study these things from a scientific standpoint. This condition cannot be made up for by lots of rain in the summer; although it helps the small areas of forest locally by supplying much needed water to the vegegation, the overall larger picture is not that good. So please, do not misinterpret these records as meaning everything is ok, back to "normal" and that "mother nature" is somehow making up for the lost precipitation.

1. The precip measurments consist of that which has accumulated from the previous day up until 9:00 am on the date of measure and recording. Because of this, it is possible for the weather to be listed as clear and sunny on a day when any amout of rain or snow is recorded.

Who is the person doing these measurements?
This person is not a scientist or a meteorologist.

The person doing the measuring: