Sumpter, Oregon
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 14° 35° -28° (1996) 59° (1971) 1.45" NA
February 15° 40° -40° (1989) 64° (1970) 1.33" NA
March 23° 49° -9° (1993) 73° (1978) 1.52" NA
April 29° 57° 6° (1975) 85° (1987) 1.52" NA
May 36° 65° 20° (1999) 91° (1986) 1.91" NA
June 41° 73° 22° (1973) 95° (1992) 1.61" NA
July 45° 83° 27° (1979) 98° (1980) 0.75" NA
August 45° 83° 26° (1992) 98° (1990) 0.88" NA
September 39° 74° 20° (1985) 95° (1998) 0.55" NA
October 31° 60° 5° (1971) 85° (1996) 0.96" NA
November 25° 43° -10° (1985) 65° (1988) 1.68" NA
December 15° 33° -28° (1983) 54° (1995) 1.75" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 47° 85° 34° (1987) 96° (1977) 0.02" NA
Aug 2 47° 85° 37° (1988) 93° (1999) 0.02" NA
Aug 3 47° 85° 32° (1989) 95° (2000) 0.03" NA
Aug 4 47° 85° 36° (1980) 96° (1970) 0.02" NA
Aug 5 46° 85° 31° (1969) 98° (1990) 0.02" NA
Aug 6 46° 85° 33° (1969) 96° (1990) 0.03" NA
Aug 7 46° 85° 33° (1996) 96° (1990) 0.02" NA
Aug 8 46° 85° 32° (1974) 96° (1990) 0.03" NA
Aug 9 46° 84° 34° (1974) 97° (1972) 0.02" NA
Aug 10 46° 84° 37° (1974) 94° (1969) 0.03" NA
Aug 11 46° 84° 37° (1987) 96° (1996) 0.03" NA
Aug 12 46° 84° 35° (1975) 97° (1992) 0.03" NA
Aug 13 46° 84° 32° (1995) 95° (1992) 0.03" NA
Aug 14 46° 83° 34° (1974) 97° (1992) 0.03" NA
Aug 15 46° 83° 33° (1974) 94° (2007) 0.03" NA
Aug 16 46° 83° 34° (1976) 94° (2007) 0.03" NA
Aug 17 46° 83° 33° (1969) 94° (1977) 0.03" NA
Aug 18 45° 83° 33° (1973) 95° (1977) 0.03" NA
Aug 19 45° 82° 30° (1989) 96° (1977) 0.04" NA
Aug 20 45° 82° 33° (1974) 95° (1977) 0.03" NA
Aug 21 45° 82° 33° (1974) 91° (1991) 0.03" NA
Aug 22 45° 81° 34° (1980) 94° (1969) 0.03" NA
Aug 23 45° 81° 33° (1971) 96° (1969) 0.04" NA
Aug 24 44° 81° 26° (1992) 98° (1969) 0.03" NA
Aug 25 44° 81° 29° (1993) 94° (2008) 0.03" NA
Aug 26 44° 80° 31° (1992) 92° (1971) 0.03" NA
Aug 27 44° 80° 34° (1969) 93° (1972) 0.03" NA
Aug 28 44° 80° 33° (1973) 94° (1972) 0.03" NA
Aug 29 44° 79° 27° (1969) 91° (1988) 0.03" NA
Aug 30 43° 79° 33° (1993) 91° (1998) 0.02" NA
Aug 31 43° 79° 33° (1975) 91° (1987) 0.03" NA
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