Seattle, Washington
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -17.8° (1950) 19.4° (1931) 5.13" 2.4"
February 10° -17.2° (1950) 21.1° (1968) 4.18" 1.3"
March 12° -11.7° (1955) 25.6° (2004) 3.75" 0.6"
April 14° -1.7° (1975) 30.6° (1947) 2.59" 0.1"
May 18° -8.9° (1928) 33.9° (1963) 1.78" 0"
June 11° 21° 3.3° (1952) 36.7° (1925) 1.49" 0"
July 13° 24° -3.9° (1938) 37.8° (1994) 0.79" 0"
August 13° 24° 6.7° (1955) 37.2° (1981) 1.02" 0"
September 11° 21° 1.7° (1972) 36.7° (1988) 1.63" 0"
October 16° -7.2° (1937) 31.7° (1987) 3.19" 0.1"
November 11° -17.8° (1939) 23.3° (1949) 5.9" 1.1"
December -14.4° (1968) 18.3° (1939) 5.62" 2.5"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 7.2° 16.1° -7° (1905) 27° (1998) 0.07" NA
May 2 7.2° 16.7° 1° (1952) 31° (1945) 0.07" NA
May 3 7.2° 16.7° -9° (1928) 29° (1944) 0.07" NA
May 4 7.2° 16.7° 1° (1962) 29° (1992) 0.07" NA
May 5 7.2° 16.7° 2° (1965) 30° (1953) 0.06" NA
May 6 7.2° 17.2° 2° (2002) 26° (1957) 0.06" NA
May 7 7.8° 17.2° 1° (1962) 27° (1987) 0.06" NA
May 8 7.8° 17.2° -4° (1940) 29° (1987) 0.06" NA
May 9 7.8° 17.2° 3° (1922) 27° (1987) 0.06" NA
May 10 7.8° 17.2° 3° (1894) 29° (1931) 0.06" NA
May 11 7.8° 17.8° 2° (1953) 31° (1971) 0.06" NA
May 12 8.3° 17.8° 3° (1985) 31° (1926) 0.06" NA
May 13 8.3° 17.8° 3° (1956) 33° (1934) 0.06" NA
May 14 8.3° 17.8° 2° (1964) 32° (1912) 0.06" NA
May 15 8.3° 17.8° 3° (1964) 30° (1895) 0.06" NA
May 16 8.3° 17.8° 4° (2003) 31° (1895) 0.06" NA
May 17 8.3° 18.3° 4° (1966) 29° (1956) 0.06" NA
May 18 8.9° 18.3° 3° (2003) 32° (1958) 0.06" NA
May 19 8.9° 18.3° 3° (1975) 31° (1963) 0.06" NA
May 20 8.9° 18.3° 4° (1960) 33° (1963) 0.05" NA
May 21 8.9° 18.3° 4° (1960) 34° (1963) 0.05" NA
May 22 8.9° 18.9° 3° (1960) 30° (1969) 0.05" NA
May 23 8.9° 18.9° 3° (1980) 32° (1969) 0.05" NA
May 24 9.4° 18.9° 3° (1975) 32° (1992) 0.05" NA
May 25 9.4° 18.9° 3° (1964) 32° (1898) 0.05" NA
May 26 9.4° 18.9° 4° (1952) 32° (2005) 0.05" NA
May 27 9.4° 18.9° 3° (1966) 32° (2005) 0.05" NA
May 28 9.4° 18.9° 3° (1954) 33° (1983) 0.05" NA
May 29 9.4° 19.4° 2° (1951) 29° (1973) 0.05" NA
May 30 9.4° 19.4° 2° (1951) 31° (1922) 0.05" NA
May 31 10° 19.4° 2° (1953) 32° (1964) 0.05" NA
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