Sumpter, Oregon
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 12° 33° -28° (1996) 59° (1971) 1.86" NA
February 15° 40° -40° (1989) 64° (1970) 1.38" NA
March 23° 48° -9° (1993) 73° (1978) 1.58" NA
April 29° 56° 6° (1975) 85° (1987) 1.26" NA
May 35° 65° 20° (1999) 91° (1986) 1.74" NA
June 41° 73° 22° (1973) 95° (1992) 1.67" NA
July 45° 82° 27° (1979) 98° (1980) 0.85" NA
August 45° 81° 26° (1992) 98° (1990) 0.95" NA
September 38° 72° 20° (1985) 95° (1998) 0.81" NA
October 30° 60° 5° (1971) 85° (1996) 0.93" NA
November 23° 43° -10° (1985) 65° (1988) 1.86" NA
December 15° 33° -28° (1983) 54° (1995) 1.95" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 32° 61° 22° (1969) 79° (1985) 0.05" NA
May 2 32° 61° 21° (1969) 78° (1998) 0.05" NA
May 3 33° 61° 25° (1996) 78° (1992) 0.05" NA
May 4 33° 62° 23° (1982) 81° (1992) 0.05" NA
May 5 33° 62° 21° (1978) 84° (1992) 0.05" NA
May 6 33° 62° 21° (1984) 85° (1987) 0.05" NA
May 7 33° 63° 25° (1988) 85° (1987) 0.05" NA
May 8 34° 63° 22° (1999) 84° (1987) 0.05" NA
May 9 34° 63° 20° (1999) 82° (1987) 0.05" NA
May 10 34° 63° 21° (1999) 83° (1971) 0.05" NA
May 11 34° 64° 25° (1970) 84° (1994) 0.05" NA
May 12 35° 64° 20° (1985) 87° (1993) 0.05" NA
May 13 35° 64° 25° (1970) 84° (1971) 0.06" NA
May 14 35° 64° 24° (1986) 82° (1997) 0.06" NA
May 15 35° 65° 26° (1977) 84° (1979) 0.06" NA
May 16 35° 65° 26° (1974) 85° (1973) 0.06" NA
May 17 36° 65° 25° (1974) 83° (1970) 0.06" NA
May 18 36° 66° 25° (1974) 86° (1973) 0.06" NA
May 19 36° 66° 24° (1987) 81° (1973) 0.06" NA
May 20 36° 66° 24° (1987) 82° (1980) 0.06" NA
May 21 36° 66° 22° (1992) 83° (2000) 0.06" NA
May 22 37° 67° 27° (1973) 84° (1979) 0.06" NA
May 23 37° 67° 27° (1978) 84° (1983) 0.06" NA
May 24 37° 67° 31° (1972) 85° (1983) 0.06" NA
May 25 37° 67° 24° (1975) 86° (1983) 0.06" NA
May 26 37° 67° 24° (1973) 89° (1986) 0.06" NA
May 27 37° 68° 26° (1982) 87° (1983) 0.06" NA
May 28 38° 68° 28° (1970) 91° (1983) 0.06" NA
May 29 38° 68° 25° (1979) 91° (1986) 0.06" NA
May 30 38° 68° 26° (1979) 91° (1986) 0.06" NA
May 31 38° 69° 26° (1984) 89° (1986) 0.06" NA
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