Roche Harbor, Washington
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 34° 45° -8° (1950) 65° (1931) 3.86" 2.2"
February 36° 48° -4° (1893) 66° (1986) 2.79" 1"
March 37° 52° 10° (1920) 76° (2004) 2.27" 0.7"
April 40° 57° 28° (1936) 78° (1926) 1.89" 0"
May 44° 62° 31° (1954) 87° (1983) 1.72" 0"
June 47° 66° 37° (1933) 89° (2003) 1.4" 0"
July 49° 70° 40° (1949) 92° (1941) 0.94" 0"
August 50° 70° 38° (1980) 89° (1990) 1.06" 0"
September 47° 66° 32° (1926) 87° (1951) 1.34" 0"
October 43° 58° 26° (1935) 77° (1987) 2.42" 0"
November 38° 50° 4° (1985) 67° (1980) 4.38" 0.6"
December 35° 45° 2° (1968) 65° (1994) 4.09" 1.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 42° 60° 31° (1954) 74° (1940) 0.06" NA
May 2 42° 60° 34° (1964) 80° (1920) 0.06" NA
May 3 42° 60° 36° (1942) 75° (1898) 0.06" NA
May 4 42° 60° 35° (1963) 75° (1980) 0.06" NA
May 5 42° 61° 33° (1965) 78° (1953) 0.06" NA
May 6 42° 61° 35° (1955) 73° (1947) 0.06" NA
May 7 42° 61° 32° (1896) 77° (1969) 0.06" NA
May 8 43° 61° 32° (1896) 73° (1954) 0.06" NA
May 9 43° 61° 35° (1922) 74° (1940) 0.06" NA
May 10 43° 61° 35° (1916) 77° (1931) 0.06" NA
May 11 43° 62° 34° (1985) 77° (1971) 0.06" NA
May 12 43° 62° 35° (1899) 80° (1926) 0.06" NA
May 13 43° 62° 33° (1950) 81° (1939) 0.06" NA
May 14 43° 62° 35° (1899) 79° (1928) 0.06" NA
May 15 43° 62° 36° (1964) 76° (1895) 0.06" NA
May 16 44° 62° 37° (1950) 81° (1925) 0.06" NA
May 17 44° 63° 36° (1966) 76° (1956) 0.06" NA
May 18 44° 63° 35° (1950) 83° (1958) 0.05" NA
May 19 44° 63° 34° (1982) 81° (1963) 0.05" NA
May 20 44° 63° 35° (1982) 79° (1963) 0.05" NA
May 21 44° 63° 36° (1909) 83° (1963) 0.05" NA
May 22 44° 63° 37° (1896) 78° (1914) 0.05" NA
May 23 44° 63° 36° (1950) 83° (1969) 0.05" NA
May 24 44° 64° 34° (1982) 79° (1992) 0.05" NA
May 25 45° 64° 35° (1982) 76° (1894) 0.05" NA
May 26 45° 64° 37° (1973) 78° (1947) 0.05" NA
May 27 45° 64° 34° (1966) 80° (2005) 0.05" NA
May 28 45° 64° 37° (1966) 85° (1983) 0.05" NA
May 29 45° 64° 39° (1976) 87° (1983) 0.05" NA
May 30 45° 64° 37° (1950) 77° (1931) 0.05" NA
May 31 45° 64° 37° (1953) 79° (1922) 0.05" NA
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