Ephrata, Washington
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 22° 34° -22° (1950) 61° (1953) 0.83" NA
February 27° 42° -24° (1950) 65° (1977) 0.78" NA
March 33° 54° 2° (1955) 75° (1999) 0.75" NA
April 40° 64° 22° (1982) 94° (1977) 0.43" NA
May 48° 73° 28° (2002) 101° (1986) 0.64" NA
June 55° 81° 33° (1976) 105° (1973) 0.51" NA
July 61° 88° 40° (1981) 109° (1960) 0.44" NA
August 60° 88° 36° (1960) 115° (1961) 0.25" NA
September 51° 78° 28° (2000) 106° (1988) 0.37" NA
October 40° 63° 8° (2002) 86° (1991) 0.47" NA
November 30° 45° -15° (1985) 72° (1989) 1.03" NA
December 23° 34° -21° (1983) 63° (1972) 1.19" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 56° 84° 41° (1980) 100° (1987) 0.01" NA
Sep 2 56° 83° 42° (1973) 101° (1950) 0.01" NA
Sep 3 56° 83° 43° (2000) 106° (1988) 0.01" NA
Sep 4 55° 83° 40° (2002) 102° (1988) 0.01" NA
Sep 5 55° 82° 45° (1969) 98° (1955) 0.01" NA
Sep 6 55° 82° 41° (1996) 96° (1955) 0.01" NA
Sep 7 54° 82° 38° (1992) 94° (1958) 0.01" NA
Sep 8 54° 81° 38° (2002) 94° (1969) 0.01" NA
Sep 9 54° 81° 42° (1970) 95° (1963) 0.01" NA
Sep 10 53° 80° 44° (2003) 94° (1987) 0.01" NA
Sep 11 53° 80° 41° (1988) 99° (1953) 0.01" NA
Sep 12 53° 80° 39° (1984) 94° (1987) 0.01" NA
Sep 13 52° 79° 36° (1970) 96° (2001) 0.01" NA
Sep 14 52° 79° 38° (1970) 96° (2000) 0.01" NA
Sep 15 51° 78° 37° (1970) 94° (1967) 0.01" NA
Sep 16 51° 78° 38° (1965) 96° (1981) 0.01" NA
Sep 17 51° 78° 34° (1965) 98° (1981) 0.02" NA
Sep 18 50° 77° 33° (1988) 99° (1981) 0.02" NA
Sep 19 50° 77° 33° (1957) 97° (1967) 0.02" NA
Sep 20 50° 76° 34° (1983) 93° (1967) 0.02" NA
Sep 21 49° 76° 36° (1996) 94° (1967) 0.02" NA
Sep 22 49° 76° 35° (1956) 96° (1966) 0.02" NA
Sep 23 48° 75° 28° (2000) 92° (1987) 0.02" NA
Sep 24 48° 75° 33° (1958) 91° (1952) 0.01" NA
Sep 25 48° 74° 34° (1970) 92° (1952) 0.01" NA
Sep 26 47° 74° 33° (1972) 90° (1952) 0.01" NA
Sep 27 47° 73° 35° (1972) 94° (1994) 0.01" NA
Sep 28 47° 73° 35° (1985) 94° (1963) 0.01" NA
Sep 29 46° 72° 30° (1972) 88° (1989) 0.01" NA
Sep 30 46° 72° 36° (1955) 85° (1970) 0.01" NA
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