Tuesday, November 21, 2017

CoCoRaHS Weather Year

Starts October 1st through the following September 30th. We are 7.5 weeks in.

Weather & Climate Data


Weather observation and data for
Oroville, WA and vicinity.

WSU - Ag Weather Network - East Oroville
Longest period with no precipitation:
2014 = 25 days
2015 = 34 days
2016 = 29 days
2017 = 103 consecutive days in to September.
            w/o precipitation.

INFO: Weather data is observed and collected on
a "weather" year starting on October 1st thru
September 30th.
This is the 2018 CoCoRaHS Weather Year.

CoCoRaHS weather data for WA-OK-5
Readings are usually taken at 6:00 a.m.

(Month Data page link above is updated daily.)

* = Value may be adjusted.

Tue   33*     Overcast & calm.
Mon  35  42 Overcast & calm.
                    Pricip. from 9:00 -11:30a.m.
                    PRECIP. = .08
Sun  38  43 Overcast & calm.
                   Day 4 w/o Precip./SWE.
Sat   32  46 Overcast & calm.
                   Day 3 w/o Precip./SWE.
Fri    34  47 Mostly cloudy. Calm.
                   Day 2 w/o Precip./SWE.
Thu  38  48 Partly cloudy. Calm.
                   Day 1 w/o Precip./SWE.
Wed 41 46  Rain. Precip. =.42
Tue  38  52 Mostly clear. Calm.
                   Day 1 w/o Precip./SWE.
                    
March - May = 7.58 inches or 49.2%
April - May alone precip. = 5.89 inches or 39.4%
July - Sept. 2017 =    .11 inches on  5/92 days or 5.4%.
July - Sept.  2016 = 1.42 inches on 15/92 days or 16.3%.
July - Oct. 2017 (4 mo.) = .67 inches on 13/123 days or 10.6%.

November Precipitation
8/20 = 40.0%
Precip. of 1.75 + SWE of .12 = 1.87
Max. Precip. in 24 Hrs. = .45
2 consecutive days w/o precip.
Snowfall to date: 1/2 inch.

WA-OK-5 - 2017
89/234 = 27.5%
Precip. of 11.27  & SWE of 1.54 = 12.81
31 days in a row w/o precip./swe.
Max. Precip. in 24 Hrs. = .93
Max. SWE in 24 Hrs. = .39
Snowfall to date 17.4 inches.

WA-OK-5 - 2016
118/366 = 32.2%
Precip. & SWE = 13.50 + 1.25 = 14.75
Max. Precip. in 24 Hrs. = .60
Max. SWE in 24 Hrs. = .31
The 3rd wettest year in the past 17.

CoCoRaHS 2017-18 /Precip. Year 2018 (Oct.-Sept.)
16/51 = 31.4% Precipitation/SWE.
Precip. of 2.31 + SWE of .12 = 2.43
Max. Precip. in a 24 Hr. period = .43
Max. 12 days in a row w/o precipitation. 
Max. SWE in a 24 Hr. period = n/a inches.
Total snowfall = 1/2 inch or n/a CM

CoCoRaHs 2016-17 /Precip. Year 2017 (Oct.-Sept.)
118/363 = 32.5%  Precipitation/SWE.
Precip. of 13.72 + SWE of 1.79 = 15.51
Max. Precip. in a 24 Hr. period = .93 inches.
Max. 31 days in a row w/o precipitation. 
Max. SWE in a 24 Hr. period = .21 inches.
Total snowfall = 26.1 inches or 66.29 CM

CoCoRaHS 2015-16 /Precip Year 2016 (Oct.-Sept.)
Yearly: 13.49 + 1.89 = 15.38
109/366 = 29.8%  Precipitation/SWE.

CoCoRaHS 2014-15 /Precip Year 2015 (Oct.-Sept.)
Yearly: 10.32 + 2.09 = 12.41
88/365 = 24.1% Precipitation/SWE.
                 
CoCoRaHs 2013-14 /Precip Year 2014 (Oct.-Sept.)
Yearly: 8.30 + 21.27 = 9.57
   # days out of 365 =   ?? %

WSU-AWN WINDRUN:
November:High  192.6  - Low 18.5  Avg. =   60.5
Year 2017: High: 244.5 - Low: 10.1 Avg. =    66.2
Year 2016: High: 249.4 - Low:  9.9  Avg. =   89.5
Year 2015: High: 375.2 Low: 20.8  Avg. = 101.4
Year 2014: High: 354.1 - Low: 16.2. Avg. = 104.3
Year 2013: High: 259.2 - Low: 21.6. Avg. =   98.3
Year 2012: High: 231.7 - Low: 18.9. Avg. =   97.9
Year 2011: High: 286.3 - Low: 38.0. Avg. = 105.5

November: 1/2 inch of snow already! Some rain.
October:  Cooling down & .56 of rain for the month.
August: Smokey skies from forest fires. HOT & DRY!
July:    High temp at 99. 31 consecutive days w/o Precip.
April:  3.8 inches of precipThe wettest month in the
           2016-17 Weather year.
March:   Ice melted on the lake on 3/25.

Snowfall and SWE (snow/water equivalent)
Regular snowfall readings are taken from
October 1st through March 31st.

2017-18 =  1/2 inch to date.
2016-17 =  26.1 inches or 66.3 cm.(2)
2015-16 = 19.2 inches or 48.8 cm. (3)
2014-15 =   9.9 inches or 25.2 cm. (6)
2013-14 = 14.3 inches or 36.3 cm. (5)
2012-13 = 31.9 inches or 81.0 cm. (1)
2011-12 = 16.6 inches or 44.7 cm. (4)
2010-11 =   9.1 inches or 25.7 cm. (7)


Tuesday, November 14, 2017

Photo of the month - November 2017
Snow arrived early.