Riley, Oregon
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 14° 36° -30° (1962) 58° (1971) 0.72" 9.4"
February 20° 42° -32° (1989) 62° (1986) 0.64" 4.5"
March 26° 50° -3° (1979) 76° (1966) 0.91" 4.3"
April 30° 58° 3° (1975) 83° (1977) 0.7" 1.7"
May 35° 66° 12° (1964) 92° (1986) 1.15" 0.7"
June 41° 75° 22° (1976) 95° (1990) 0.59" 0.1"
July 45° 84° 26° (1986) 97° (1980) 0.38" 0"
August 44° 84° 23° (1965) 105° (1967) 0.53" 0"
September 36° 75° 11° (1970) 95° (1988) 0.57" 0"
October 29° 63° 5° (1985) 88° (1988) 0.64" 0.9"
November 22° 45° -16° (1985) 69° (1976) 1.23" 6.2"
December 15° 36° -31° (1972) 60° (1972) 0.88" 11.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 40° 80° 28° (1977) 93° (1969) 0.02" NA
Sep 2 40° 79° 28° (1975) 92° (1988) 0.02" NA
Sep 3 40° 79° 24° (1980) 95° (1988) 0.02" NA
Sep 4 40° 79° 25° (1969) 93° (1963) 0.02" NA
Sep 5 39° 78° 25° (1969) 94° (1988) 0.02" NA
Sep 6 39° 78° 33° (1972) 92° (1975) 0.02" NA
Sep 7 39° 78° 26° (1964) 91° (1975) 0.02" NA
Sep 8 38° 77° 27° (1971) 89° (1981) 0.02" NA
Sep 9 38° 77° 24° (1964) 88° (1981) 0.02" NA
Sep 10 38° 77° 25° (1989) 88° (1971) 0.02" NA
Sep 11 37° 76° 19° (1982) 90° (1981) 0.02" NA
Sep 12 37° 76° 25° (1962) 88° (1987) 0.02" NA
Sep 13 37° 75° 25° (1967) 88° (1981) 0.02" NA
Sep 14 37° 75° 11° (1970) 88° (1975) 0.02" NA
Sep 15 36° 75° 18° (1970) 89° (1979) 0.02" NA
Sep 16 36° 75° 22° (1987) 90° (1964) 0.02" NA
Sep 17 36° 74° 21° (1965) 92° (1981) 0.02" NA
Sep 18 35° 74° 12° (1965) 90° (1981) 0.02" NA
Sep 19 35° 74° 16° (1965) 88° (1974) 0.02" NA
Sep 20 35° 73° 18° (1983) 86° (1974) 0.02" NA
Sep 21 35° 73° 21° (1983) 90° (1967) 0.02" NA
Sep 22 34° 73° 20° (1968) 89° (1966) 0.02" NA
Sep 23 34° 72° 23° (1986) 90° (1987) 0.02" NA
Sep 24 34° 72° 26° (1981) 86° (1967) 0.02" NA
Sep 25 34° 72° 12° (1972) 89° (1963) 0.02" NA
Sep 26 33° 71° 18° (1972) 91° (1963) 0.02" NA
Sep 27 33° 71° 23° (1972) 90° (1963) 0.02" NA
Sep 28 33° 71° 20° (1971) 90° (1963) 0.01" NA
Sep 29 32° 70° 16° (1985) 87° (1963) 0.01" NA
Sep 30 32° 70° 21° (1981) 85° (1963) 0.01" NA
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