Startup, Washington
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 35° 47° -8° (1950) 68° (2005) 8.36" 0.7"
February 35° 50° -4° (1950) 77° (1968) 5.63" 0.8"
March 37° 54° 6° (1955) 79° (1994) 6.03" 0.1"
April 40° 59° 17° (1982) 87° (2004) 5.29" 0"
May 45° 65° 27° (1965) 102° (1983) 5.06" 0"
June 50° 70° 31° (1976) 98° (1982) 3.85" 0"
July 52° 76° 35° (1952) 103° (1951) 1.69" 0"
August 52° 77° 36° (1973) 100° (1960) 1.78" 0"
September 47° 72° 30° (1983) 98° (1988) 3.35" 0"
October 42° 61° 19° (1949) 92° (1987) 6.21" 0"
November 38° 51° 4° (1955) 78° (1949) 10.23" 0.5"
December 34° 45° 3° (1990) 67° (1980) 7.65" 1.1"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 42° 62° 30° (1954) 84° (1976) 0.16" 0"
May 2 42° 63° 31° (2006) 86° (1976) 0.15" 0"
May 3 43° 63° 32° (1950) 86° (1976) 0.14" 0"
May 4 43° 63° 32° (1952) 85° (1953) 0.15" 0"
May 5 43° 63° 28° (1952) 91° (1953) 0.15" 0"
May 6 43° 63° 27° (1965) 86° (1990) 0.15" 0"
May 7 44° 64° 30° (1965) 82° (1954) 0.15" 0"
May 8 44° 64° 32° (1950) 86° (1969) 0.16" 0"
May 9 44° 64° 32° (1955) 86° (1987) 0.15" 0"
May 10 44° 64° 31° (1999) 84° (1976) 0.15" 0"
May 11 44° 64° 31° (1953) 90° (1971) 0.16" 0"
May 12 45° 65° 31° (1977) 88° (1971) 0.15" 0"
May 13 45° 65° 30° (1958) 92° (1959) 0.16" 0"
May 14 45° 65° 31° (1986) 89° (1973) 0.16" 0"
May 15 45° 65° 31° (1964) 95° (1973) 0.16" 0"
May 16 46° 65° 34° (1986) 87° (1985) 0.17" 0"
May 17 46° 65° 32° (1974) 91° (1956) 0.16" 0"
May 18 46° 66° 31° (1970) 96° (1958) 0.17" 0"
May 19 46° 66° 33° (1982) 90° (1963) 0.16" 0"
May 20 46° 66° 31° (1975) 94° (1963) 0.17" 0"
May 21 47° 66° 33° (1971) 95° (1963) 0.17" 0"
May 22 47° 66° 34° (1955) 93° (1963) 0.17" 0"
May 23 47° 66° 29° (1950) 94° (1969) 0.18" 0"
May 24 47° 67° 32° (1950) 91° (1969) 0.17" 0"
May 25 47° 67° 33° (1972) 88° (1992) 0.18" 0"
May 26 48° 67° 35° (1951) 88° (1958) 0.18" 0"
May 27 48° 67° 31° (1966) 89° (2005) 0.17" 0"
May 28 48° 67° 32° (1966) 93° (2005) 0.18" 0"
May 29 48° 67° 33° (1966) 102° (1983) 0.18" 0"
May 30 48° 67° 33° (1950) 92° (1983) 0.17" 0"
May 31 48° 67° 32° (1953) 88° (1986) 0.18" 0"
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