Walnut Creek, California
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 39° 54° 20° (2007) 71° (1984) 4.25" 0"
February 42° 60° 26° (1989) 80° (1985) 3.81" 0"
March 44° 64° 29° (1971) 88° (1988) 3.24" 0"
April 46° 71° 29° (1999) 98° (1996) 1.04" 0"
May 50° 78° 34° (1976) 104° (1997) 0.46" 0"
June 54° 84° 31° (1976) 110° (2000) 0.12" 0"
July 55° 87° 41° (1979) 115° (1972) 0.02" 0"
August 55° 87° 42° (1970) 107° (1998) 0.08" 0"
September 54° 83° 40° (2007) 108° (1971) 0.24" 0"
October 49° 75° 34° (1971) 103° (1980) 0.94" 0"
November 43° 63° 25° (1985) 82° (1997) 2.59" 0"
December 39° 55° 19° (1990) 74° (1999) 2.79" 0"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jul 1 55° 86° 46° (1975) 107° (1972) 0" NA
Jul 2 55° 86° 46° (1975) 104° (1984) 0" NA
Jul 3 55° 86° 47° (1978) 107° (1970) 0" NA
Jul 4 54° 87° 46° (1987) 105° (1973) 0" NA
Jul 5 54° 87° 48° (1975) 106° (1973) 0" NA
Jul 6 55° 87° 49° (1970) 104° (1989) 0" NA
Jul 7 55° 87° 41° (1979) 104° (1989) 0" NA
Jul 8 55° 87° 49° (1984) 105° (1985) 0" NA
Jul 9 55° 87° 49° (1975) 105° (1985) 0" NA
Jul 10 55° 87° 50° (1991) 105° (2002) 0" NA
Jul 11 55° 87° 48° (1975) 102° (1983) 0" NA
Jul 12 55° 87° 46° (1978) 106° (1972) 0" NA
Jul 13 55° 87° 49° (1975) 111° (1972) 0" NA
Jul 14 55° 87° 50° (2004) 115° (1972) 0" NA
Jul 15 55° 87° 50° (1991) 113° (1972) 0" NA
Jul 16 55° 88° 50° (1981) 106° (1988) 0" NA
Jul 17 55° 88° 48° (1986) 111° (1988) 0" NA
Jul 18 55° 88° 48° (1987) 106° (1988) 0" NA
Jul 19 55° 88° 47° (1986) 104° (1998) 0" NA
Jul 20 55° 88° 47° (1987) 102° (1998) 0" NA
Jul 21 55° 88° 49° (1973) 103° (1996) 0" NA
Jul 22 55° 88° 47° (1987) 111° (2006) 0" NA
Jul 23 55° 88° 49° (1987) 111° (2006) 0" NA
Jul 24 55° 88° 46° (1987) 107° (2006) 0" NA
Jul 25 55° 88° 47° (1987) 108° (1973) 0" NA
Jul 26 55° 88° 46° (1987) 110° (1975) 0" NA
Jul 27 55° 88° 48° (1986) 106° (1973) 0" NA
Jul 28 55° 88° 48° (1978) 101° (1995) 0" NA
Jul 29 55° 88° 49° (1978) 105° (1977) 0" NA
Jul 30 55° 88° 46° (1978) 108° (1977) 0.01" NA
Jul 31 55° 87° 49° (1975) 104° (1977) 0.01" NA
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