Seattle, Washington
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -8.9° (1980) 17.8° (1981) 5.24" 2.9"
February 11° -11.7° (1989) 21.1° (1986) 4.09" 1"
March 13° -5° (1989) 23.3° (1995) 3.92" 0.4"
April 15° 0° (1997) 29.4° (1976) 2.75" 0"
May 18° 3.3° (1996) 31.1° (1973) 2.03" 0"
June 12° 21° 5.6° (1991) 33.9° (1995) 1.55" 0"
July 13° 24° 8.3° (1979) 35.6° (1991) 0.93" 0"
August 14° 24° 8.9° (1980) 34.4° (1996) 1.16" 0"
September 12° 21° 5° (1985) 32.8° (1988) 1.61" 0"
October 16° -0.6° (1991) 27.8° (1991) 3.24" 0"
November 11° -10.6° (1985) 21.7° (1980) 5.67" 0.6"
December -11.1° (1983) 18.3° (1980) 6.06" 2.1"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 3.3° 8.9° -7° (1985) 13° (1975) 0.2" NA
Dec 2 2.8° 8.9° -2° (1985) 14° (1997) 0.2" NA
Dec 3 2.8° 8.9° -2° (1994) 15° (1982) 0.2" NA
Dec 4 2.8° 8.9° -5° (1994) 14° (1989) 0.2" NA
Dec 5 2.8° 8.3° -4° (1994) 13° (1989) 0.2" NA
Dec 6 2.8° 8.3° -4° (1972) 13° (1988) 0.2" NA
Dec 7 2.8° 8.3° -8° (1972) 13° (1976) 0.2" NA
Dec 8 2.8° 8.3° -9° (1972) 14° (1975) 0.2" NA
Dec 9 2.2° 8.3° -6° (1972) 13° (1987) 0.2" NA
Dec 10 2.2° 8.3° -8° (1972) 16° (1993) 0.2" NA
Dec 11 2.2° 8.3° -2° (1972) 13° (1976) 0.2" NA
Dec 12 2.2° 8.3° -7° (1972) 16° (1995) 0.2" NA
Dec 13 2.2° 7.8° -6° (1972) 13° (1977) 0.2" NA
Dec 14 2.2° 7.8° -2° (1985) 13° (1980) 0.2" NA
Dec 15 2.2° 7.8° -2° (1991) 18° (1980) 0.2" NA
Dec 16 2.2° 7.8° -2° (1991) 15° (1974) 0.2" NA
Dec 17 2.2° 7.8° -2° (1984) 14° (1994) 0.2" NA
Dec 18 2.2° 7.8° -4° (1984) 13° (1972) 0.2" NA
Dec 19 2.2° 7.8° -5° (1984) 13° (1979) 0.19" NA
Dec 20 2.2° 7.8° -6° (1983) 14° (1974) 0.19" NA
Dec 21 2.2° 7.8° -9° (1983) 13° (1972) 0.19" NA
Dec 22 2.2° 7.8° -10° (1983) 13° (1995) 0.19" NA
Dec 23 2.2° 7.8° -11° (1983) 13° (1994) 0.19" NA
Dec 24 1.7° 7.8° -11° (1983) 12° (1979) 0.19" NA
Dec 25 1.7° 7.8° -2° (1995) 16° (1980) 0.19" NA
Dec 26 1.7° 7.8° -3° (1987) 17° (1980) 0.19" NA
Dec 27 1.7° 7.8° -3° (1996) 14° (1994) 0.19" NA
Dec 28 1.7° 7.8° -7° (1978) 15° (1980) 0.19" NA
Dec 29 1.7° 7.8° -8° (1978) 13° (1975) 0.19" NA
Dec 30 2.2° 7.8° -9° (1978) 12° (1980) 0.19" NA
Dec 31 2.2° 7.8° -10° (1978) 13° (1996) 0.18" NA
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