Diablo, Washington
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 30° 39° 2° (1979) 63° (1974) 11.62" NA
February 32° 43° 2° (1989) 61° (1968) 8.75" NA
March 34° 49° 16° (1989) 75° (2004) 7.1" NA
April 38° 57° 25° (1982) 89° (1977) 4.71" NA
May 44° 64° 31° (2006) 101° (1983) 3.53" NA
June 48° 69° 35° (1976) 96° (1967) 2.8" NA
July 52° 76° 41° (1986) 107° (1965) 2.07" NA
August 53° 76° 40° (1980) 108° (1965) 1.82" NA
September 49° 70° 33° (1972) 98° (1988) 3.26" NA
October 43° 57° 20° (1984) 80° (1975) 7.32" NA
November 36° 45° 7° (1985) 74° (1969) 13.46" NA
December 31° 39° -4° (1968) 58° (1980) 13.06" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 33° 41° 15° (1985) 51° (2002) 0.46" NA
Dec 2 33° 41° 15° (1985) 51° (1974) 0.46" NA
Dec 3 32° 40° 25° (1972) 53° (1989) 0.45" NA
Dec 4 32° 40° 17° (1972) 55° (1965) 0.45" NA
Dec 5 32° 40° 17° (1972) 53° (1974) 0.45" NA
Dec 6 32° 40° 16° (1980) 50° (1974) 0.44" NA
Dec 7 32° 40° 14° (1972) 52° (1965) 0.44" NA
Dec 8 32° 40° 12° (1972) 48° (1976) 0.44" NA
Dec 9 32° 40° 14° (1972) 49° (1962) 0.44" NA
Dec 10 32° 39° 19° (1972) 49° (1979) 0.43" NA
Dec 11 31° 39° 20° (1972) 51° (2004) 0.43" NA
Dec 12 31° 39° 22° (2000) 48° (1974) 0.43" NA
Dec 13 31° 39° 16° (1972) 53° (1988) 0.42" NA
Dec 14 31° 39° 19° (1972) 49° (2004) 0.42" NA
Dec 15 31° 39° 24° (1972) 51° (1962) 0.42" NA
Dec 16 31° 39° -4° (1964) 54° (1976) 0.42" NA
Dec 17 31° 39° -4° (1964) 50° (1974) 0.42" NA
Dec 18 31° 39° 8° (1964) 50° (1966) 0.41" NA
Dec 19 31° 39° 12° (1990) 51° (2004) 0.41" NA
Dec 20 31° 39° 7° (1990) 53° (1973) 0.41" NA
Dec 21 31° 38° 5° (1990) 52° (1973) 0.41" NA
Dec 22 31° 38° 4° (1990) 46° (1972) 0.41" NA
Dec 23 30° 38° 8° (1983) 50° (1973) 0.4" NA
Dec 24 30° 38° 14° (1990) 50° (2003) 0.4" NA
Dec 25 30° 38° 15° (1983) 50° (1963) 0.4" NA
Dec 26 30° 38° 14° (1996) 53° (1980) 0.4" NA
Dec 27 30° 38° 14° (1996) 58° (1980) 0.4" NA
Dec 28 30° 38° 0° (1968) 50° (1980) 0.4" NA
Dec 29 30° 38° -2° (1968) 46° (1980) 0.4" NA
Dec 30 30° 38° -4° (1968) 49° (1975) 0.4" NA
Dec 31 30° 38° -2° (1968) 52° (1961) 0.39" NA
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