Portland, Oregon
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -11.1° (1979) 18.3° (2005) 6.24" NA
February 10° -13.3° (1989) 21.7° (1988) 5.07" NA
March 13° -4.4° (1989) 26.1° (1994) 4.51" NA
April 16° -0.6° (1975) 31.1° (2004) 3.1" NA
May 19° 2.2° (1985) 39.4° (1983) 2.49" NA
June 12° 23° 5° (1991) 38.3° (2006) 1.6" NA
July 14° 26° 8.3° (1996) 40° (2006) 0.76" NA
August 14° 26° 7.8° (1973) 41.1° (1981) 0.99" NA
September 13° 23° 5° (1982) 39.4° (1988) 1.87" NA
October 17° -0.6° (2002) 33.3° (1987) 3.39" NA
November 11° -5° (1993) 21.7° (1999) 6.39" NA
December -12.2° (1983) 19.4° (1993) 6.75" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 11.1° 20.6° 6° (1983) 33° (1987) 0.08" NA
Oct 2 10.6° 20.6° 6° (1973) 29° (1980) 0.08" NA
Oct 3 10.6° 20° 5° (1973) 29° (1980) 0.08" NA
Oct 4 10.6° 20° 6° (1973) 27° (1980) 0.08" NA
Oct 5 10.6° 20° 3° (1974) 32° (1980) 0.08" NA
Oct 6 10° 19.4° 5° (1990) 31° (1987) 0.08" NA
Oct 7 10° 19.4° 4° (1990) 28° (1984) 0.08" NA
Oct 8 10° 18.9° 4° (1985) 26° (1974) 0.08" NA
Oct 9 10° 18.9° 2° (1985) 29° (1996) 0.09" NA
Oct 10 9.4° 18.9° 7° (1977) 29° (1991) 0.09" NA
Oct 11 9.4° 18.3° 5° (2002) 29° (1991) 0.09" NA
Oct 12 9.4° 18.3° 4° (1981) 25.6° (2006) 0.09" NA
Oct 13 9.4° 17.8° 4° (1981) 26° (2004) 0.1" NA
Oct 14 8.9° 17.8° 4° (1981) 28° (1991) 0.1" NA
Oct 15 8.9° 17.2° 3° (1999) 27° (1991) 0.1" NA
Oct 16 8.9° 17.2° 4° (1983) 26° (2002) 0.1" NA
Oct 17 8.9° 17.2° 4° (1984) 24° (1974) 0.11" NA
Oct 18 8.9° 16.7° 4° (1982) 26° (1978) 0.11" NA
Oct 19 8.3° 16.7° 4° (1996) 23° (1999) 0.11" NA
Oct 20 8.3° 16.1° 3° (1996) 24° (2003) 0.12" NA
Oct 21 8.3° 16.1° 3° (1978) 27° (2003) 0.12" NA
Oct 22 8.3° 16.1° 3° (1984) 24° (2003) 0.12" NA
Oct 23 8.3° 15.6° 4° (1991) 25° (1992) 0.13" NA
Oct 24 7.8° 15.6° 4° (1983) 22° (1974) 0.13" NA
Oct 25 7.8° 15° 3° (2002) 21° (2003) 0.14" NA
Oct 26 7.8° 15° 3° (1978) 22° (2003) 0.14" NA
Oct 27 7.8° 14.4° 4° (1977) 21° (1987) 0.14" NA
Oct 28 7.2° 14.4° 2° (1991) 22° (2003) 0.15" NA
Oct 29 7.2° 14.4° 1° (1991) 21° (1993) 0.15" NA
Oct 30 7.2° 13.9° -1° (1991) 21° (1988) 0.16" NA
Oct 31 7.2° 13.9° -1° (2002) 18° (1981) 0.16" NA
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