Lewiston, Idaho
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 28° 39° -22° (1950) 66° (1953) 1.14" 3.9"
February 31° 46° -18° (1884) 72° (1986) 0.95" 2.4"
March 36° 54° 2° (1955) 80° (1923) 1.12" 0.7"
April 41° 62° 20° (1966) 99° (1946) 1.31" 0.1"
May 47° 70° 23° (1954) 104° (1934) 1.56" 0"
June 54° 78° 34° (1951) 109° (1936) 1.16" 0"
July 59° 88° 41° (1955) 117° (1939) 0.72" 0"
August 59° 88° 41° (1992) 115° (1961) 0.75" 0"
September 51° 77° 27° (1926) 108° (1944) 0.81" 0"
October 41° 62° 15° (2002) 94° (1943) 0.96" 0.1"
November 34° 47° -3° (1955) 77° (1999) 1.21" 1.8"
December 28° 39° -23° (1919) 67° (1921) 1.05" 3.5"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Apr 1 38° 58° 22° (1936) 77° (1990) 0.04" NA
Apr 2 38° 58° 24° (1935) 80° (1992) 0.04" NA
Apr 3 38° 58° 25° (1955) 82° (1944) 0.04" NA
Apr 4 39° 59° 28° (2001) 85° (1944) 0.04" NA
Apr 5 39° 59° 24° (1955) 79° (1952) 0.04" NA
Apr 6 39° 59° 25° (1895) 78° (1977) 0.04" NA
Apr 7 39° 59° 26° (1973) 84° (1977) 0.04" NA
Apr 8 39° 60° 25° (1952) 81° (1925) 0.04" NA
Apr 9 39° 60° 29° (1988) 84° (1925) 0.04" NA
Apr 10 40° 60° 26° (1953) 83° (1925) 0.04" NA
Apr 11 40° 60° 27° (1997) 83° (1913) 0.04" NA
Apr 12 40° 61° 28° (1983) 86° (1936) 0.04" NA
Apr 13 40° 61° 26° (1968) 84° (1904) 0.04" NA
Apr 14 40° 61° 26° (1911) 84° (1962) 0.04" NA
Apr 15 40° 61° 25° (1955) 90° (1926) 0.04" NA
Apr 16 41° 62° 28° (1894) 90° (1936) 0.04" NA
Apr 17 41° 62° 25° (1964) 90° (1936) 0.04" NA
Apr 18 41° 62° 26° (1964) 90° (1910) 0.04" NA
Apr 19 41° 62° 20° (1966) 87° (1908) 0.04" NA
Apr 20 41° 63° 23° (1951) 88° (1942) 0.05" NA
Apr 21 42° 63° 22° (1951) 91° (1906) 0.05" NA
Apr 22 42° 63° 29° (1968) 93° (1934) 0.05" NA
Apr 23 42° 64° 32° (1972) 94° (1977) 0.05" NA
Apr 24 42° 64° 30° (2002) 99° (1946) 0.05" NA
Apr 25 42° 64° 30° (1924) 92° (1910) 0.05" NA
Apr 26 43° 64° 30° (1950) 86° (1926) 0.05" NA
Apr 27 43° 65° 27° (1955) 93° (1987) 0.05" NA
Apr 28 43° 65° 27° (1907) 98° (1939) 0.05" NA
Apr 29 43° 65° 29° (1950) 93° (1926) 0.05" NA
Apr 30 43° 66° 27° (1894) 87° (1981) 0.05" NA
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