Richland, Oregon
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 19° 37° -27° (1979) 62° (1967) 1.5" NA
February 23° 45° -26° (1989) 76° (1961) 0.96" NA
March 28° 55° 2° (1954) 85° (1966) 1.06" NA
April 33° 65° 14° (1976) 92° (1987) 1.03" NA
May 40° 73° 12° (1954) 97° (1957) 1.34" NA
June 47° 82° 28° (1962) 103° (1974) 1.07" NA
July 52° 91° 25° (1983) 111° (2003) 0.7" NA
August 50° 90° 34° (1954) 109° (1961) 0.75" NA
September 41° 81° 21° (1999) 105° (1955) 0.5" NA
October 32° 68° 6° (1971) 92° (1992) 0.67" NA
November 25° 49° -6° (1993) 78° (1966) 1.5" NA
December 19° 39° -21° (1983) 65° (1950) 1.39" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 36° 69° 12° (1954) 87° (1971) 0.04" NA
May 2 37° 70° 14° (1954) 88° (1966) 0.04" NA
May 3 37° 70° 21° (1959) 90° (1966) 0.04" NA
May 4 37° 70° 23° (1996) 94° (1966) 0.04" NA
May 5 37° 70° 25° (1950) 92° (1966) 0.04" NA
May 6 38° 71° 26° (1950) 89° (1992) 0.04" NA
May 7 38° 71° 29° (1961) 92° (1987) 0.04" NA
May 8 38° 71° 28° (1964) 93° (1987) 0.04" NA
May 9 39° 72° 25° (1966) 93° (1987) 0.04" NA
May 10 39° 72° 21° (1999) 90° (1949) 0.04" NA
May 11 39° 72° 26° (1999) 90° (1949) 0.04" NA
May 12 39° 73° 25° (1954) 94° (1949) 0.04" NA
May 13 40° 73° 26° (1956) 95° (1949) 0.04" NA
May 14 40° 73° 30° (1955) 95° (1949) 0.04" NA
May 15 40° 73° 28° (1966) 95° (1973) 0.05" NA
May 16 40° 74° 27° (1971) 94° (1973) 0.05" NA
May 17 41° 74° 24° (1974) 94° (2006) 0.05" NA
May 18 41° 74° 28° (1974) 96° (2006) 0.05" NA
May 19 41° 74° 29° (1960) 92° (1958) 0.05" NA
May 20 41° 75° 28° (1974) 96° (1958) 0.05" NA
May 21 41° 75° 26° (1960) 95° (1958) 0.05" NA
May 22 42° 75° 32° (1957) 94° (1958) 0.05" NA
May 23 42° 75° 26° (1964) 94° (2001) 0.05" NA
May 24 42° 76° 29° (1950) 96° (2001) 0.05" NA
May 25 42° 76° 25° (1975) 96° (1958) 0.04" NA
May 26 43° 76° 31° (1973) 96° (1958) 0.04" NA
May 27 43° 76° 31° (1967) 97° (1957) 0.04" NA
May 28 43° 77° 28° (1969) 92° (1957) 0.04" NA
May 29 43° 77° 28° (1955) 93° (1972) 0.04" NA
May 30 43° 77° 29° (1955) 96° (1957) 0.04" NA
May 31 44° 77° 31° (1955) 94° (1977) 0.04" NA
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