Jefferson, Oregon
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 33° 47° 2° (1957) 69° (2005) 7.17" NA
February 35° 51° 7° (1989) 72° (1963) 6.46" NA
March 38° 56° 18° (1955) 77° (2004) 5.37" NA
April 41° 61° 25° (1975) 86° (1957) 4.26" NA
May 45° 67° 31° (1985) 98° (1983) 3.31" NA
June 49° 73° 33° (1973) 102° (2006) 2.42" NA
July 53° 80° 34° (1965) 105° (2006) 0.87" NA
August 52° 80° 34° (1965) 106° (1978) 1.15" NA
September 48° 76° 30° (1954) 102° (1955) 2.18" NA
October 43° 64° 23° (1971) 91° (1980) 4.03" NA
November 38° 52° 9° (1955) 76° (1970) 8.16" NA
December 34° 46° -7° (1972) 66° (1993) 8" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jun 1 47° 70° 33° (1973) 94° (1970) 0.1" NA
Jun 2 47° 70° 37° (1967) 92° (1970) 0.1" NA
Jun 3 48° 70° 36° (1976) 92° (1970) 0.1" NA
Jun 4 48° 71° 39° (1991) 89° (1987) 0.1" NA
Jun 5 48° 71° 38° (1966) 92° (1978) 0.09" NA
Jun 6 48° 71° 39° (1962) 96° (2003) 0.09" NA
Jun 7 48° 71° 39° (1962) 96° (2003) 0.09" NA
Jun 8 48° 71° 37° (1974) 96° (1955) 0.09" NA
Jun 9 48° 72° 40° (1957) 92° (1955) 0.09" NA
Jun 10 49° 72° 39° (1973) 88° (1975) 0.09" NA
Jun 11 49° 72° 39° (1973) 87° (1975) 0.09" NA
Jun 12 49° 72° 39° (1962) 85° (1986) 0.09" NA
Jun 13 49° 72° 38° (1955) 93° (2002) 0.09" NA
Jun 14 49° 73° 40° (1955) 92° (1986) 0.09" NA
Jun 15 49° 73° 39° (1952) 98° (1966) 0.08" NA
Jun 16 49° 73° 37° (1955) 97° (1966) 0.08" NA
Jun 17 50° 73° 40° (1970) 95° (1961) 0.08" NA
Jun 18 50° 73° 37° (1954) 97° (1982) 0.08" NA
Jun 19 50° 74° 39° (1955) 96° (1982) 0.08" NA
Jun 20 50° 74° 42° (1956) 91° (1970) 0.08" NA
Jun 21 50° 74° 41° (1956) 91° (1958) 0.07" NA
Jun 22 50° 75° 40° (1975) 93° (1990) 0.07" NA
Jun 23 50° 75° 41° (1976) 100° (1992) 0.07" NA
Jun 24 50° 75° 39° (1974) 95° (1992) 0.07" NA
Jun 25 51° 75° 39° (1976) 96° (1989) 0.07" NA
Jun 26 51° 76° 39° (1963) 99° (2006) 0.06" NA
Jun 27 51° 76° 36° (1976) 102° (2006) 0.06" NA
Jun 28 51° 76° 38° (1964) 95° (2000) 0.06" NA
Jun 29 51° 76° 40° (1956) 96° (2003) 0.06" NA
Jun 30 51° 77° 42° (1957) 94° (1995) 0.05" NA
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