Union, Washington
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 33° 43° 11° (1980) 63° (2005) 13.69" NA
February 34° 47° 14° (1989) 71° (1986) 11.93" NA
March 36° 52° 21° (1989) 77° (1979) 9.59" NA
April 39° 57° 28° (2001) 83° (1998) 5.64" NA
May 44° 64° 31° (1985) 92° (1983) 3.28" NA
June 49° 69° 34° (1976) 94° (1982) 1.98" NA
July 52° 74° 41° (1979) 96° (2004) 1.16" NA
August 52° 75° 39° (1981) 97° (1981) 1.46" NA
September 49° 69° 34° (1983) 91° (1988) 3.03" NA
October 42° 58° 26° (2006) 82° (1980) 7.38" NA
November 37° 48° 13° (1985) 68° (1980) 15.16" NA
December 34° 43° 11° (1983) 66° (1980) 15.76" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 51° 73° 40° (1973) 90° (1987) 0.07" NA
Sep 2 51° 73° 41° (1984) 90° (1988) 0.07" NA
Sep 3 51° 73° 43° (1973) 91° (1988) 0.07" NA
Sep 4 51° 73° 43° (1975) 89° (1988) 0.07" NA
Sep 5 50° 72° 44° (1975) 87° (1973) 0.08" NA
Sep 6 50° 72° 43° (1992) 84° (1986) 0.08" NA
Sep 7 50° 72° 41° (1983) 84° (1981) 0.08" NA
Sep 8 50° 72° 41° (1976) 85° (1981) 0.08" NA
Sep 9 50° 71° 41° (1992) 82° (1973) 0.08" NA
Sep 10 50° 71° 40° (1988) 83° (1973) 0.09" NA
Sep 11 49° 71° 42° (1988) 82° (1975) 0.09" NA
Sep 12 49° 71° 42° (1986) 81° (1975) 0.09" NA
Sep 13 49° 70° 41° (1992) 83° (1979) 0.09" NA
Sep 14 49° 70° 43° (1974) 87° (2000) 0.1" NA
Sep 15 49° 70° 40° (1992) 86° (1981) 0.1" NA
Sep 16 49° 69° 39° (1992) 86° (1981) 0.1" NA
Sep 17 48° 69° 39° (1988) 85° (1981) 0.1" NA
Sep 18 48° 69° 38° (1978) 80° (1991) 0.11" NA
Sep 19 48° 69° 36° (1983) 82° (1974) 0.11" NA
Sep 20 48° 68° 40° (1983) 86° (1974) 0.11" NA
Sep 21 48° 68° 40° (1984) 83° (1974) 0.11" NA
Sep 22 47° 68° 40° (1996) 86° (1990) 0.12" NA
Sep 23 47° 67° 38° (1984) 82° (1974) 0.12" NA
Sep 24 47° 67° 39° (1984) 85° (1974) 0.12" NA
Sep 25 47° 67° 41° (1981) 78° (1989) 0.12" NA
Sep 26 46° 66° 40° (1977) 79° (1980) 0.13" NA
Sep 27 46° 66° 40° (1985) 83° (2003) 0.13" NA
Sep 28 46° 65° 38° (1983) 79° (2003) 0.13" NA
Sep 29 46° 65° 36° (1983) 78° (2003) 0.14" NA
Sep 30 45° 65° 34° (1983) 78° (1975) 0.14" NA
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