Winnetka, California
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 40° 68° 19° (1950) 93° (1975) 3.83" 0"
February 41° 70° 18° (1989) 94° (1986) 4.4" 0"
March 42° 72° 26° (1966) 101° (1988) 3.6" 0"
April 45° 78° 30° (1999) 105° (1989) 0.88" 0"
May 49° 81° 33° (1950) 113° (1984) 0.32" 0"
June 53° 89° 36° (1950) 113° (1990) 0.07" 0"
July 57° 95° 42° (1952) 115° (1985) 0.01" 0"
August 58° 96° 42° (1950) 116° (1985) 0.15" 0"
September 55° 92° 38° (1954) 115° (1979) 0.24" 0"
October 49° 84° 27° (1971) 110° (1980) 0.62" 0"
November 42° 75° 23° (1958) 99° (1975) 1.29" 0"
December 38° 69° 20° (1990) 96° (1958) 2.38" 0"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 39° 71° 28° (1975) 88° (1972) 0.06" NA
Dec 2 39° 71° 31° (1972) 90° (1975) 0.06" NA
Dec 3 39° 70° 30° (1955) 96° (1958) 0.06" NA
Dec 4 39° 70° 29° (2004) 90° (1979) 0.06" NA
Dec 5 39° 70° 30° (1968) 93° (1989) 0.06" NA
Dec 6 39° 70° 26° (1953) 89° (1979) 0.06" NA
Dec 7 39° 70° 28° (1953) 87° (1989) 0.07" NA
Dec 8 39° 70° 28° (1978) 86° (1975) 0.07" NA
Dec 9 38° 69° 23° (1972) 93° (1975) 0.07" NA
Dec 10 38° 69° 26° (1972) 89° (1950) 0.07" NA
Dec 11 38° 69° 25° (1949) 89° (1958) 0.07" NA
Dec 12 38° 69° 22° (1972) 86° (1988) 0.07" NA
Dec 13 38° 69° 24° (1985) 84° (1958) 0.07" NA
Dec 14 38° 69° 26° (1972) 83° (1952) 0.07" NA
Dec 15 38° 69° 28° (1972) 85° (1980) 0.07" NA
Dec 16 38° 68° 29° (1951) 88° (1980) 0.08" NA
Dec 17 38° 68° 28° (1975) 86° (1998) 0.08" NA
Dec 18 38° 68° 28° (1995) 84° (1998) 0.08" NA
Dec 19 38° 68° 27° (1965) 82° (1985) 0.08" NA
Dec 20 38° 68° 27° (1967) 85° (1985) 0.08" NA
Dec 21 38° 68° 22° (1968) 86° (1972) 0.08" NA
Dec 22 38° 68° 23° (1968) 83° (1985) 0.08" NA
Dec 23 38° 68° 20° (1990) 85° (1950) 0.09" NA
Dec 24 38° 68° 23° (1953) 87° (1950) 0.09" NA
Dec 25 38° 68° 23° (1953) 84° (1985) 0.09" NA
Dec 26 38° 68° 22° (1954) 86° (1980) 0.09" NA
Dec 27 38° 68° 24° (1988) 80° (1956) 0.09" NA
Dec 28 38° 68° 23° (1962) 86° (1963) 0.09" NA
Dec 29 38° 68° 20° (1954) 85° (1980) 0.09" NA
Dec 30 38° 68° 25° (1953) 84° (1998) 0.1" NA
Dec 31 39° 68° 27° (1972) 85° (2000) 0.1" NA
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