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
Apr 1 4.4° 14.4° -1° (1971) 26° (1987) 0.1" NA
Apr 2 4.4° 14.4° -1° (1972) 26° (1992) 0.1" NA
Apr 3 4.4° 14.4° -1° (1964) 25° (2004) 0.1" NA
Apr 4 4.4° 15° -2° (1955) 24° (2002) 0.1" NA
Apr 5 4.4° 15° -1° (1975) 25° (1977) 0.1" NA
Apr 6 15° -1° (1975) 26° (2007) 0.1" NA
Apr 7 15° 0° (1970) 26° (1996) 0.09" NA
Apr 8 15° -1° (1975) 23° (1996) 0.09" NA
Apr 9 15° 1° (1982) 26° (1985) 0.09" NA
Apr 10 15° -1° (1954) 26° (2004) 0.09" NA
Apr 11 15.6° 1° (1991) 27° (2004) 0.09" NA
Apr 12 15.6° -1° (1970) 27° (1951) 0.09" NA
Apr 13 15.6° -1° (1968) 27° (1989) 0.09" NA
Apr 14 5.6° 15.6° 0° (1977) 26° (1984) 0.09" NA
Apr 15 5.6° 15.6° -1° (1967) 28° (1990) 0.09" NA
Apr 16 5.6° 16.1° 0° (1964) 26° (1999) 0.09" NA
Apr 17 5.6° 16.1° -1° (1977) 26° (1983) 0.09" NA
Apr 18 5.6° 16.1° -1° (1964) 27° (1962) 0.09" NA
Apr 19 5.6° 16.1° -1° (1982) 27° (1956) 0.08" NA
Apr 20 5.6° 16.1° 1° (1975) 29° (1956) 0.08" NA
Apr 21 6.1° 16.1° -2° (1951) 25° (1982) 0.08" NA
Apr 22 6.1° 16.7° -1° (1972) 26° (1982) 0.08" NA
Apr 23 6.1° 16.7° 1° (1954) 26° (1995) 0.08" NA
Apr 24 6.1° 16.7° 0° (1950) 26° (1999) 0.08" NA
Apr 25 6.1° 16.7° 0° (1955) 28° (2001) 0.08" NA
Apr 26 6.7° 16.7° 1° (1970) 30° (2004) 0.08" NA
Apr 27 6.7° 17.2° 0° (1948) 30° (1987) 0.08" NA
Apr 28 6.7° 17.2° 1° (1973) 28° (1998) 0.08" NA
Apr 29 6.7° 17.2° 1° (1952) 31° (1957) 0.08" NA
Apr 30 6.7° 17.2° 1° (1986) 32° (1998) 0.08" NA
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