Portland, Oregon
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -18.9° (1950) 18.9° (2005) 5.07" 1.6"
February 10° -19.4° (1950) 21.7° (1988) 4.18" 1.6"
March 13° -7.2° (1989) 28.3° (1947) 3.71" 0.1"
April 16° -1.7° (1955) 32.2° (1998) 2.64" 0"
May 19° -1.7° (1954) 37.8° (1983) 2.38" 0"
June 12° 23° 3.9° (1966) 38.9° (2006) 1.59" 0"
July 14° 26° 6.1° (1955) 41.7° (1965) 0.72" 0"
August 14° 27° 6.7° (1980) 41.7° (1981) 0.93" 0"
September 12° 24° 1.1° (1965) 40.6° (1988) 1.65" 0"
October 17° -3.3° (1971) 33.3° (1987) 2.88" 0"
November 11° -10.6° (1985) 22.8° (1975) 5.61" 0.6"
December -14.4° (1964) 18.3° (1993) 5.71" 1.3"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 14.4° 27.2° 8° (1963) 34° (1986) 0.02" NA
Aug 2 14.4° 27.2° 10° (1959) 36° (1986) 0.02" NA
Aug 3 14.4° 27.2° 8° (1950) 37° (1952) 0.02" NA
Aug 4 14.4° 27.2° 11° (1954) 38° (1990) 0.02" NA
Aug 5 14.4° 27.2° 9° (1960) 35° (1972) 0.02" NA
Aug 6 14.4° 26.7° 9° (1975) 39° (1972) 0.02" NA
Aug 7 14.4° 26.7° 9° (1974) 40° (1972) 0.02" NA
Aug 8 14.4° 26.7° 9° (1970) 42° (1981) 0.02" NA
Aug 9 14.4° 26.7° 9° (1954) 41° (1981) 0.02" NA
Aug 10 14.4° 26.7° 10° (1964) 42° (1981) 0.03" NA
Aug 11 14.4° 26.7° 10° (1966) 39° (1977) 0.03" NA
Aug 12 14.4° 26.7° 9° (1957) 40° (1977) 0.03" NA
Aug 13 14.4° 26.7° 7° (1949) 39° (2002) 0.03" NA
Aug 14 14.4° 26.7° 8° (1982) 36° (1967) 0.03" NA
Aug 15 14.4° 26.7° 11° (1989) 37° (1967) 0.03" NA
Aug 16 13.9° 26.7° 8° (1969) 39° (1977) 0.03" NA
Aug 17 13.9° 26.7° 7° (1970) 41° (1977) 0.03" NA
Aug 18 13.9° 26.7° 7° (1973) 33° (1981) 0.03" NA
Aug 19 13.9° 26.7° 9° (1964) 34° (1967) 0.03" NA
Aug 20 13.9° 26.7° 8° (1959) 35° (1986) 0.03" NA
Aug 21 13.9° 26.1° 7° (1955) 34° (1966) 0.03" NA
Aug 22 13.9° 26.1° 8° (1973) 36° (1988) 0.03" NA
Aug 23 13.9° 26.1° 9° (1951) 38° (1988) 0.04" NA
Aug 24 13.9° 26.1° 8° (1992) 37° (1982) 0.04" NA
Aug 25 13.9° 26.1° 8° (1957) 34° (1967) 0.04" NA
Aug 26 13.3° 26.1° 8° (1962) 38° (1986) 0.04" NA
Aug 27 13.3° 26.1° 8° (1964) 36° (1972) 0.04" NA
Aug 28 13.3° 26.1° 7° (1980) 39° (1967) 0.04" NA
Aug 29 13.3° 25.6° 7° (1980) 34° (2007) 0.04" NA
Aug 30 13.3° 25.6° 8° (1951) 37° (1987) 0.04" NA
Aug 31 13.3° 25.6° 7° (1951) 39° (1987) 0.04" NA
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