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
May 1 41° 61° 32° (1972) 86° (1998) 0.13" NA
May 2 41° 61° 31° (2006) 88° (1998) 0.13" NA
May 3 41° 62° 32° (2006) 81° (1966) 0.13" NA
May 4 42° 62° 32° (1978) 85° (1966) 0.13" NA
May 5 42° 62° 34° (1965) 89° (1966) 0.12" NA
May 6 42° 62° 34° (1982) 92° (1966) 0.12" NA
May 7 42° 63° 34° (2000) 87° (1987) 0.12" NA
May 8 42° 63° 33° (1999) 91° (1987) 0.12" NA
May 9 43° 63° 32° (1996) 90° (1987) 0.12" NA
May 10 43° 63° 32° (1999) 85° (1987) 0.12" NA
May 11 43° 64° 34° (1999) 84° (1993) 0.12" NA
May 12 43° 64° 34° (1985) 87° (1971) 0.12" NA
May 13 43° 64° 35° (1970) 93° (1993) 0.12" NA
May 14 43° 64° 33° (1964) 89° (1973) 0.11" NA
May 15 44° 64° 34° (1964) 92° (1973) 0.11" NA
May 16 44° 65° 34° (2003) 84° (2007) 0.11" NA
May 17 44° 65° 34° (1965) 90° (2006) 0.11" NA
May 18 44° 65° 36° (2003) 88° (1993) 0.11" NA
May 19 44° 65° 36° (2003) 90° (1993) 0.11" NA
May 20 44° 65° 39° (1989) 90° (1963) 0.11" NA
May 21 45° 66° 38° (1975) 91° (1963) 0.11" NA
May 22 45° 66° 34° (1964) 93° (1963) 0.11" NA
May 23 45° 66° 37° (1964) 93° (2001) 0.11" NA
May 24 45° 66° 37° (1975) 92° (1969) 0.11" NA
May 25 45° 66° 38° (1964) 90° (1992) 0.11" NA
May 26 45° 66° 38° (1964) 85° (1966) 0.11" NA
May 27 46° 66° 36° (1973) 90° (2005) 0.1" NA
May 28 46° 66° 37° (1973) 95° (2005) 0.1" NA
May 29 46° 67° 40° (1966) 93° (1983) 0.1" NA
May 30 46° 67° 38° (1976) 101° (1983) 0.1" NA
May 31 46° 67° 38° (1976) 91° (1986) 0.1" NA
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