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
Jan 1 38° 53° 28° (1979) 64° (1996) 0.11" NA
Jan 2 38° 53° 26° (1976) 65° (1996) 0.12" NA
Jan 3 38° 53° 26° (1976) 62° (1996) 0.12" NA
Jan 4 38° 52° 26° (1993) 62° (1981) 0.12" NA
Jan 5 38° 53° 25° (1972) 65° (2003) 0.12" NA
Jan 6 38° 53° 28° (1973) 67° (2003) 0.12" NA
Jan 7 38° 53° 27° (1973) 61° (2006) 0.13" NA
Jan 8 38° 53° 30° (1972) 63° (2006) 0.13" NA
Jan 9 38° 53° 30° (1972) 65° (1983) 0.13" NA
Jan 10 38° 53° 30° (1977) 64° (1990) 0.13" NA
Jan 11 38° 53° 29° (1993) 66° (1996) 0.13" NA
Jan 12 38° 53° 25° (2007) 66° (1980) 0.14" NA
Jan 13 38° 53° 20° (2007) 64° (1980) 0.14" NA
Jan 14 39° 53° 22° (2007) 65° (1980) 0.14" NA
Jan 15 39° 53° 23° (2007) 69° (1974) 0.14" NA
Jan 16 39° 53° 24° (2007) 69° (1974) 0.14" NA
Jan 17 39° 53° 27° (2007) 65° (1971) 0.14" NA
Jan 18 39° 53° 27° (1984) 70° (1976) 0.14" NA
Jan 19 39° 54° 29° (1987) 70° (1976) 0.14" NA
Jan 20 39° 54° 29° (1984) 68° (1976) 0.14" NA
Jan 21 39° 54° 30° (1987) 68° (1976) 0.14" NA
Jan 22 39° 54° 31° (2007) 67° (2007) 0.15" NA
Jan 23 39° 54° 28° (2007) 71° (1974) 0.15" NA
Jan 24 39° 54° 29° (1972) 69° (1974) 0.15" NA
Jan 25 40° 55° 29° (1972) 65° (1984) 0.15" NA
Jan 26 40° 55° 31° (1973) 71° (1984) 0.15" NA
Jan 27 40° 55° 32° (1991) 66° (1984) 0.15" NA
Jan 28 40° 55° 27° (1975) 68° (1984) 0.15" NA
Jan 29 40° 56° 26° (2002) 64° (1976) 0.15" NA
Jan 30 40° 56° 26° (1975) 71° (1976) 0.15" NA
Jan 31 40° 56° 29° (2002) 71° (1976) 0.14" NA
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