Friday, May 26, 2017

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 = 17 days to date.

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

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

Daily weather info posted on the monthly page.
(See this month's data page link above.)

* = Value may be adjusted.

Fri    48*      Sunny & calm
Thu  50  77  Afternoon storm to the NE wind
                    blew from NE.
                    Day 8 w/o Precip.
Wed 51  69 Scattered Clouds. Light breeze.
                    Hi temp down by 18 degrees.
                    Mean temp down by 13 degrees.
                    Day 7 w/o Precip.
Tue  59  87  Scattered clouds. Some wind.
                    Day 6 w/o Precip.
Mon 55  86  Clear & Calm, continues.
                    Day 5 w/o Precip.
Sun  51  83  Clear, calm & sunny!
                    Day 4 w/o Precip.
Sat   58 78  Nearby Strom at 3 p.m.
                    Day 3 w/o Precip.
Fri    50  75  Scattered clouds. Some sun.
                    Day w/o Precip.
                    
May Precipitation
9/25 = 36.0%
Precip. of 1.82 + SWE of 0.00 = 1.82
Max. Precip. in 24 Hrs. = .77

WA-OK-5 - 2017
59/145 = 38.1% 
Precip. of 8.09 & SWE of 1.42 = 9.51
10 days in a row w/o precip./swe. 
Max. Precip. in 24 Hrs. = .93
Max. SWE in 24 Hrs. = .39
Snowfall to date 16.9 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 2016-17 (Oct.-Sept.)
104/235 = 44.3%  Precipitation/SWE.
Precip. of 12.85+ SWE of 1.79 = 14.64
Max. Precip. in a 24 Hr. period = .93 inches.
Max. 8 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 (Oct.-Sept.)
109/366 = 29.8%  Precipitation/SWE.
Precip. of 13.49 + SWE of 1.91 = 15.38
                       or
CoCoRaHS 2014-15 (Oct.-Sept.)
Yearly: 10.32 + 2.09 = 12.41
                       or
CoCoRaHS 2013-14 (Oct.-Sept.)
Yearly: 8.30 + 21.27 = 9.57

WSU-AWN WINDRUN:
May: High            118.7 - Low   39.7 Avg. =   68.9                   
Year 2017: High: 244.5 - Low:  12.1 Avg. =   80.1*
   (*Some WSU-AWN data is missing for 2017)
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

Monthly Condition:
May:   1.82 inches of precip to date! .77 in one day!
April:  The rain came after 6 days w/o precip.
     .93 in one day. 3.80 inches of precip. for the month!
            The wettest month in the 2016-17 Weather year.
March:   Ice melted on the lake on 3/25. Snowfall = 
               3.5 inches.
February:  Low to 10. High to 43. Heavy rain & flooding.
                2.8 inches of snow this month.
January: 6.5 inches of snow this month.
          Low temp record at -1 F. and 6 days later of 37.
December: Total snowfall = 9.2 inches/23.27 cm.
                    Highest windburn in 2016.
October: This month is the wettest in 2016.
August: 29 days in a row w/o precipitation.
March:  The wettest March including the past 2 years.

Snowfall and SWE (snow/water equivalent)
Regular snowfall readings are taken from
October 1st through March 31st.)
2016-17 =  26.1 inches or 66.29 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)


May, 2017. Nearby storm to the NE
near Eder Mtn.

Monday, April 10, 2017

Photo of the month - April 2017
The wettest month in the 2016-17 weather year.