Lyman, Washington
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 35° 47° -2° (1957) 67° (1931) 5.85" 0.5"
February 35° 50° -1° (1950) 74° (1986) 3.75" 0.8"
March 38° 54° 8° (1955) 80° (2004) 4.38" 0.7"
April 42° 59° 25° (1954) 82° (2004) 3.79" 0"
May 46° 65° 29° (1954) 91° (1983) 3.15" 0"
June 51° 69° 34° (1933) 96° (1955) 2.77" 0"
July 53° 74° 37° (1949) 94° (1958) 1.53" 0"
August 53° 75° 36° (1945) 97° (1960) 1.69" 0"
September 49° 70° 30° (1972) 91° (1944) 2.62" 0"
October 43° 60° 20° (1935) 86° (1987) 4.77" 0.1"
November 39° 51° 3° (1955) 71° (1939) 7.34" 1.1"
December 34° 45° 1° (1968) 74° (1939) 4.98" 3.1"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 51° 73° 39° (1960) 87° (1998) 0.08" 0"
Sep 2 51° 73° 40° (1932) 87° (1998) 0.08" 0"
Sep 3 51° 73° 38° (1956) 87° (1974) 0.08" 0"
Sep 4 51° 72° 39° (1952) 89° (1988) 0.08" 0"
Sep 5 51° 72° 37° (1956) 91° (1944) 0.09" 0"
Sep 6 51° 72° 40° (1960) 89° (1973) 0.08" 0"
Sep 7 51° 72° 37° (1950) 89° (1949) 0.08" 0"
Sep 8 50° 72° 38° (1936) 88° (1981) 0.09" 0"
Sep 9 50° 71° 39° (1964) 85° (1963) 0.08" 0"
Sep 10 50° 71° 38° (1936) 88° (1946) 0.08" 0"
Sep 11 50° 71° 39° (1961) 83° (1953) 0.08" 0"
Sep 12 50° 71° 39° (1932) 84° (1975) 0.09" 0"
Sep 13 49° 70° 35° (1970) 85° (1961) 0.08" 0"
Sep 14 49° 70° 35° (1970) 89° (1951) 0.08" 0"
Sep 15 49° 70° 37° (1932) 89° (1979) 0.09" 0"
Sep 16 49° 70° 35° (1965) 86° (1967) 0.08" 0"
Sep 17 49° 69° 37° (1947) 88° (1967) 0.08" 0"
Sep 18 48° 69° 33° (1947) 81° (1991) 0.09" 0"
Sep 19 48° 69° 35° (1957) 81° (1991) 0.09" 0"
Sep 20 48° 69° 38° (1947) 83° (1951) 0.09" 0"
Sep 21 48° 68° 35° (1960) 89° (1952) 0.09" 0"
Sep 22 48° 68° 37° (1955) 84° (1952) 0.09" 0"
Sep 23 47° 68° 33° (1961) 84° (1975) 0.09" 0"
Sep 24 47° 67° 31° (1948) 89° (1943) 0.09" 0"
Sep 25 47° 67° 33° (1948) 84° (1974) 0.09" 0"
Sep 26 47° 67° 36° (1972) 80° (1974) 0.1" 0"
Sep 27 46° 66° 30° (1972) 83° (1963) 0.09" 0"
Sep 28 46° 66° 33° (1972) 83° (1932) 0.1" 0"
Sep 29 46° 66° 34° (1954) 84° (1967) 0.11" 0"
Sep 30 46° 66° 32° (1948) 82° (1992) 0.1" 0"
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