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
Jan 1 1.1° 6.7° -10° (1979) 16° (1981) 0.17" NA
Jan 2 1.1° 6.7° -9° (1979) 14° (2007) 0.17" NA
Jan 3 1.1° 6.7° -9° (1959) 16° (1989) 0.17" NA
Jan 4 1.1° 7.2° -7° (1974) 15° (2003) 0.17" NA
Jan 5 1.1° 7.2° -7° (1982) 14° (1954) 0.17" NA
Jan 6 1.1° 7.2° -10° (1982) 14° (1956) 0.17" NA
Jan 7 1.1° 7.2° -10° (1974) 17° (1945) 0.17" NA
Jan 8 1.1° 7.2° -10° (1974) 14° (1990) 0.17" NA
Jan 9 1.1° 7.2° -11° (1974) 16° (1990) 0.17" NA
Jan 10 1.1° 7.2° -9° (1949) 14° (2006) 0.17" NA
Jan 11 1.1° 7.2° -12° (1963) 14° (1953) 0.17" NA
Jan 12 1.1° 7.2° -11° (1963) 17° (1991) 0.16" NA
Jan 13 1.1° 7.2° -10° (1950) 16° (1991) 0.16" NA
Jan 14 1.1° 7.2° -13° (1950) 16° (1974) 0.16" NA
Jan 15 1.1° 7.2° -7° (1947) 17° (1958) 0.16" NA
Jan 16 1.1° 7.2° -13° (1950) 16° (1971) 0.16" NA
Jan 17 1.1° 7.2° -13° (1950) 15° (1975) 0.16" NA
Jan 18 1.1° 7.8° -12° (1943) 19° (2005) 0.16" NA
Jan 19 1.1° 7.8° -8° (1950) 16° (1971) 0.16" NA
Jan 20 1.1° 7.8° -9° (1949) 13° (1961) 0.16" NA
Jan 21 1.1° 7.8° -13° (1962) 15° (1970) 0.16" NA
Jan 22 1.1° 7.8° -13° (1949) 16° (1970) 0.16" NA
Jan 23 1.1° 7.8° -12° (1943) 16° (1953) 0.16" NA
Jan 24 1.1° 7.8° -16° (1943) 16° (1984) 0.16" NA
Jan 25 1.1° 8.3° -12° (1949) 15° (1993) 0.16" NA
Jan 26 1.7° 8.3° -14° (1957) 17° (2003) 0.16" NA
Jan 27 1.7° 8.3° -13° (1957) 13° (1984) 0.16" NA
Jan 28 1.7° 8.3° -12° (1957) 15° (1992) 0.16" NA
Jan 29 1.7° 8.3° -13° (1950) 17° (1984) 0.16" NA
Jan 30 1.7° 8.3° -12° (1950) 17° (1995) 0.16" NA
Jan 31 1.7° 8.9° -19° (1950) 16° (1995) 0.16" NA
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