Alpental, Washington
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -17.8° (1950) 18.9° (1931) 11.03" 5.3"
February -19.4° (1989) 20.6° (1968) 8.02" 3.4"
March 11° -11.1° (1955) 25.6° (1947) 9.08" 2"
April 14° -5.6° (1936) 31.1° (1934) 7.37" 0.4"
May 17° -1.1° (1954) 37.8° (1983) 6.39" 0"
June 20° 0° (1933) 37.8° (1942) 5.34" 0"
July 11° 23° 3.3° (1955) 38.3° (1941) 2.55" 0"
August 11° 24° 3.3° (1937) 38.3° (1960) 2.56" 0"
September 21° 0° (1934) 36.1° (1988) 3.95" 0"
October 15° -6.1° (1935) 32.2° (1987) 7.29" 0"
November -14.4° (1955) 23.3° (1949) 12.58" 0.7"
December -18.3° (1968) 17.8° (1935) 9.85" 3.9"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 11° 23° 5° (1973) 34° (1987) 0.11" 0"
Sep 2 11° 23° 3° (1932) 32° (1934) 0.11" 0"
Sep 3 10° 22° 4° (1932) 36° (1988) 0.12" 0"
Sep 4 10° 22° 3° (2008) 33° (1988) 0.11" 0"
Sep 5 10° 22° 4° (1942) 33° (1944) 0.13" 0"
Sep 6 10° 22° 4° (1992) 32° (1955) 0.12" 0"
Sep 7 10° 22° 4° (1992) 31° (1943) 0.12" 0"
Sep 8 10° 22° 4° (1936) 34° (1981) 0.13" 0"
Sep 9 10° 22° 3° (1936) 32° (1944) 0.12" 0"
Sep 10 10° 22° 3° (1936) 33° (1944) 0.12" 0"
Sep 11 10° 21° 2° (1936) 29° (1953) 0.12" 0"
Sep 12 10° 21° 3° (1936) 33° (1953) 0.12" 0"
Sep 13 10° 21° 2° (1970) 31° (1975) 0.13" 0"
Sep 14 21° 1° (1936) 35° (1937) 0.12" 0"
Sep 15 21° 3° (1936) 33° (1979) 0.12" 0"
Sep 16 21° 2° (1936) 34° (1981) 0.13" 0"
Sep 17 21° 3° (1965) 34° (1967) 0.13" 0"
Sep 18 20° 3° (1988) 29° (1991) 0.13" 0"
Sep 19 20° 3° (1988) 29° (1991) 0.14" 0"
Sep 20 20° 2° (1983) 28° (1976) 0.14" 0"
Sep 21 20° 2° (1932) 32° (1950) 0.14" 0"
Sep 22 20° 2° (1993) 32° (1952) 0.14" 0"
Sep 23 20° 1° (1937) 32° (1943) 0.14" 0"
Sep 24 19° 2° (1937) 32° (1943) 0.15" 0"
Sep 25 19° 0° (1933) 32° (1974) 0.14" 0"
Sep 26 19° 0° (1934) 32° (1991) 0.15" 0"
Sep 27 19° 2° (1934) 32° (1949) 0.15" 0"
Sep 28 19° 2° (1972) 33° (1967) 0.16" 0"
Sep 29 18° 1° (1983) 28° (2003) 0.15" 0"
Sep 30 18° 2° (1933) 28° (1987) 0.16" 0"
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