Portland, Oregon
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 34° 46° -2° (1950) 66° (2005) 5.07" 1.6"
February 36° 50° -3° (1950) 71° (1988) 4.18" 1.6"
March 39° 56° 19° (1989) 80° (1947) 3.71" 0.1"
April 42° 61° 29° (1955) 90° (1998) 2.64" 0"
May 47° 67° 29° (1954) 100° (1983) 2.38" 0"
June 53° 73° 39° (1966) 102° (2006) 1.59" 0"
July 57° 79° 43° (1955) 107° (1965) 0.72" 0"
August 57° 80° 44° (1980) 107° (1981) 0.93" 0"
September 53° 75° 34° (1965) 105° (1988) 1.65" 0"
October 45° 63° 26° (1971) 92° (1987) 2.88" 0"
November 40° 52° 13° (1985) 73° (1975) 5.61" 0.6"
December 35° 45° 6° (1964) 65° (1993) 5.71" 1.3"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 56° 78° 44° (1973) 98° (1988) 0.04" NA
Sep 2 55° 78° 42° (1960) 105° (1988) 0.04" NA
Sep 3 55° 78° 45° (1980) 94° (2003) 0.05" NA
Sep 4 55° 78° 43° (1956) 98° (1955) 0.05" NA
Sep 5 55° 77° 44° (1956) 93° (1987) 0.05" NA
Sep 6 55° 77° 45° (1960) 97° (1958) 0.05" NA
Sep 7 54° 77° 42° (1992) 99° (1981) 0.05" NA
Sep 8 54° 77° 42° (1961) 93° (1993) 0.05" NA
Sep 9 54° 77° 42° (1962) 94° (1948) 0.05" NA
Sep 10 54° 76° 42° (1964) 95° (1973) 0.05" NA
Sep 11 54° 76° 43° (1964) 90° (1975) 0.05" NA
Sep 12 53° 76° 41° (1955) 92° (1975) 0.05" NA
Sep 13 53° 76° 37° (1970) 93° (1999) 0.05" NA
Sep 14 53° 75° 42° (1992) 92° (1995) 0.06" NA
Sep 15 53° 75° 40° (1970) 96° (1981) 0.06" NA
Sep 16 52° 75° 41° (1965) 92° (1994) 0.06" NA
Sep 17 52° 74° 34° (1965) 93° (1962) 0.06" NA
Sep 18 52° 74° 36° (1965) 93° (1991) 0.06" NA
Sep 19 52° 74° 39° (1957) 93° (1974) 0.06" NA
Sep 20 52° 74° 39° (1957) 96° (1952) 0.06" NA
Sep 21 51° 73° 39° (1964) 94° (1952) 0.06" NA
Sep 22 51° 73° 34° (1961) 93° (1994) 0.06" NA
Sep 23 51° 73° 40° (2000) 94° (1974) 0.06" NA
Sep 24 51° 72° 36° (1970) 96° (1974) 0.06" NA
Sep 25 50° 72° 38° (1955) 94° (1991) 0.06" NA
Sep 26 50° 71° 38° (1961) 92° (1967) 0.06" NA
Sep 27 50° 71° 37° (1961) 95° (2003) 0.06" NA
Sep 28 50° 71° 37° (1983) 89° (1989) 0.06" NA
Sep 29 49° 70° 37° (1954) 89° (1993) 0.06" NA
Sep 30 49° 70° 35° (1954) 88° (1987) 0.06" NA
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