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
Sep 1 52° 74° 43° (1973) 96° (1987) 0.08" NA
Sep 2 51° 74° 44° (1960) 91° (1988) 0.08" NA
Sep 3 51° 74° 44° (1960) 94° (1988) 0.08" NA
Sep 4 51° 73° 42° (2002) 98° (1988) 0.08" NA
Sep 5 51° 73° 42° (2002) 92° (1973) 0.08" NA
Sep 6 51° 73° 44° (1969) 97° (1973) 0.08" NA
Sep 7 51° 73° 42° (1984) 90° (1987) 0.09" NA
Sep 8 51° 72° 40° (1983) 87° (1974) 0.09" NA
Sep 9 50° 72° 42° (1983) 89° (1997) 0.09" NA
Sep 10 50° 72° 44° (1977) 92° (1963) 0.09" NA
Sep 11 50° 71° 43° (1964) 88° (2007) 0.1" NA
Sep 12 50° 71° 41° (1964) 86° (1960) 0.1" NA
Sep 13 50° 71° 41° (1964) 87° (1975) 0.1" NA
Sep 14 49° 71° 42° (1991) 88° (1988) 0.1" NA
Sep 15 49° 70° 39° (1969) 87° (1995) 0.11" NA
Sep 16 49° 70° 39° (1969) 90° (1967) 0.11" NA
Sep 17 49° 69° 37° (1983) 90° (1967) 0.11" NA
Sep 18 49° 69° 38° (1988) 82° (1973) 0.11" NA
Sep 19 49° 69° 40° (1989) 85° (1999) 0.12" NA
Sep 20 48° 68° 39° (1968) 85° (1974) 0.12" NA
Sep 21 48° 68° 38° (1968) 89° (1974) 0.12" NA
Sep 22 48° 68° 42° (1972) 90° (1974) 0.12" NA
Sep 23 48° 67° 38° (1982) 92° (1974) 0.13" NA
Sep 24 48° 67° 35° (1970) 97° (1974) 0.13" NA
Sep 25 47° 66° 35° (1970) 87° (1974) 0.13" NA
Sep 26 47° 66° 36° (1972) 83° (1974) 0.14" NA
Sep 27 47° 66° 36° (1972) 84° (1967) 0.14" NA
Sep 28 47° 65° 33° (1972) 88° (2003) 0.14" NA
Sep 29 46° 65° 37° (1972) 87° (2003) 0.14" NA
Sep 30 46° 64° 39° (1972) 85° (2003) 0.15" NA
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