Wilsonville, Oregon
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 36° 48° 8° (1974) 65° (2005) 6.17" 0.8"
February 36° 52° 8° (1989) 72° (1968) 4.74" 0.3"
March 39° 57° 20° (1971) 78° (1994) 4.55" 0.1"
April 42° 61° 19° (2001) 87° (2004) 3.24" 0"
May 47° 68° 29° (1985) 101° (1983) 2.52" 0"
June 52° 74° 34° (1966) 104° (1992) 1.86" 0"
July 55° 81° 41° (1970) 104° (2006) 0.6" 0"
August 55° 82° 37° (1965) 105° (1981) 0.64" 0"
September 51° 76° 30° (1972) 105° (1988) 1.54" 0"
October 44° 64° 25° (1971) 95° (1988) 3.58" 0"
November 40° 53° 14° (1985) 72° (1969) 6.56" 0.1"
December 34° 46° -15° (1998) 67° (1993) 6.62" 1.1"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 36° 49° 20° (1998) 57° (1966) 0.25" NA
Dec 2 36° 48° 20° (1969) 58° (1993) 0.26" NA
Dec 3 36° 48° 20° (1969) 58° (1975) 0.25" NA
Dec 4 35° 48° 23° (1969) 61° (1989) 0.24" NA
Dec 5 35° 48° 19° (1972) 62° (1989) 0.24" NA
Dec 6 35° 47° 13° (1998) 58° (1970) 0.23" NA
Dec 7 35° 47° 10° (1998) 60° (1965) 0.24" NA
Dec 8 35° 47° 6° (1972) 56° (1987) 0.23" NA
Dec 9 34° 47° 5° (1972) 58° (1975) 0.22" NA
Dec 10 34° 47° 4° (1998) 67° (1993) 0.22" NA
Dec 11 34° 47° 4° (1998) 58° (1977) 0.21" NA
Dec 12 34° 46° 4° (1998) 58° (2002) 0.21" NA
Dec 13 34° 46° 15° (1998) 65° (1995) 0.21" NA
Dec 14 34° 46° 15° (1998) 61° (2002) 0.21" NA
Dec 15 34° 46° 16° (1998) 59° (2006) 0.21" NA
Dec 16 34° 46° 12° (1998) 59° (1976) 0.21" NA
Dec 17 34° 46° 8° (1964) 59° (1974) 0.21" NA
Dec 18 34° 46° 9° (1964) 56° (1994) 0.2" NA
Dec 19 34° 46° 2° (1998) 57° (1972) 0.21" NA
Dec 20 34° 46° -9° (1998) 62° (1994) 0.21" NA
Dec 21 34° 46° -12° (1998) 61° (1972) 0.21" NA
Dec 22 34° 45° -13° (1998) 60° (1980) 0.2" NA
Dec 23 34° 45° -15° (1998) 60° (1964) 0.2" NA
Dec 24 34° 45° -3° (1998) 57° (1967) 0.2" NA
Dec 25 34° 45° 8° (1990) 62° (2005) 0.2" NA
Dec 26 34° 46° 14° (1998) 63° (1980) 0.19" NA
Dec 27 34° 46° 18° (1985) 58° (1975) 0.19" NA
Dec 28 34° 46° 18° (1985) 60° (1980) 0.2" NA
Dec 29 34° 46° 13° (1990) 58° (1967) 0.18" NA
Dec 30 34° 46° 11° (1990) 56° (1975) 0.19" NA
Dec 31 34° 46° 13° (1978) 65° (1980) 0.19" NA
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