Walnut Creek, California
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 36° 55° 20° (2007) 71° (1984) 4.01" 0"
February 38° 61° 26° (1989) 80° (1985) 4.04" 0"
March 41° 66° 29° (1971) 88° (1988) 2.86" 0"
April 43° 72° 29° (1999) 98° (1996) 1.21" 0"
May 46° 79° 34° (1976) 104° (1997) 0.6" 0"
June 50° 85° 31° (1976) 110° (2000) 0.13" 0"
July 51° 89° 41° (1979) 115° (1972) 0" 0"
August 51° 88° 42° (1970) 107° (1998) 0.05" 0"
September 50° 84° 40° (2007) 108° (1971) 0.18" 0"
October 46° 76° 34° (1971) 103° (1980) 0.98" 0"
November 40° 64° 25° (1985) 82° (1997) 2.59" 0"
December 36° 56° 19° (1990) 74° (1999) 3.71" 0"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Apr 1 42° 69° 34° (1976) 81° (1988) 0.06" 0"
Apr 2 42° 69° 35° (1976) 84° (1985) 0.05" 0"
Apr 3 42° 69° 35° (1984) 86° (2000) 0.06" 0"
Apr 4 42° 69° 29° (1999) 87° (1985) 0.05" 0"
Apr 5 42° 70° 35° (2009) 85° (1989) 0.05" 0"
Apr 6 42° 70° 36° (1982) 89° (1989) 0.06" 0"
Apr 7 42° 70° 37° (1980) 91° (1989) 0.05" 0"
Apr 8 42° 70° 38° (1971) 92° (1989) 0.04" 0"
Apr 9 42° 70° 35° (1984) 93° (1989) 0.05" 0"
Apr 10 42° 71° 39° (1975) 90° (1988) 0.04" 0"
Apr 11 42° 71° 32° (1976) 91° (1988) 0.05" 0"
Apr 12 42° 71° 38° (1970) 88° (1977) 0.04" 0"
Apr 13 42° 71° 37° (1983) 91° (1990) 0.04" 0"
Apr 14 43° 72° 36° (2005) 92° (1985) 0.04" 0"
Apr 15 43° 72° 35° (1975) 90° (1987) 0.04" 0"
Apr 16 43° 72° 30° (1976) 91° (1987) 0.04" 0"
Apr 17 43° 72° 37° (1975) 86° (1977) 0.04" 0"
Apr 18 43° 72° 38° (1996) 85° (1977) 0.03" 0"
Apr 19 43° 73° 38° (1979) 88° (1977) 0.04" 0"
Apr 20 43° 73° 37° (1972) 88° (1986) 0.03" 0"
Apr 21 43° 73° 35° (2008) 92° (2009) 0.04" 0"
Apr 22 43° 73° 40° (1978) 93° (2009) 0.03" 0"
Apr 23 43° 74° 39° (1970) 89° (2009) 0.03" 0"
Apr 24 44° 74° 37° (2008) 87° (2004) 0.04" 0"
Apr 25 44° 74° 37° (2009) 90° (2004) 0.03" 0"
Apr 26 44° 74° 35° (2009) 95° (2004) 0.03" 0"
Apr 27 44° 75° 35° (1984) 95° (2004) 0.03" 0"
Apr 28 44° 75° 38° (1970) 96° (2004) 0.03" 0"
Apr 29 44° 75° 34° (2009) 94° (1981) 0.02" 0"
Apr 30 44° 75° 35° (2009) 98° (1996) 0.03" 0"
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