Hercules, California
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 43° 57° 27° (1982) 76° (1962) 4.91" 0"
February 45° 61° 28° (1956) 88° (1981) 4.41" 0"
March 47° 63° 33° (1951) 85° (2005) 3.52" 0"
April 48° 66° 31° (1976) 94° (2004) 1.35" 0"
May 51° 68° 38° (1977) 100° (1976) 0.54" 0"
June 54° 71° 43° (1975) 106° (2000) 0.17" 0"
July 55° 70° 44° (1984) 98° (1970) 0.07" 0"
August 56° 71° 44° (1983) 98° (1993) 0.09" 0"
September 56° 73° 46° (1983) 107° (1971) 0.27" 0"
October 53° 72° 41° (1971) 100° (1980) 1.25" 0"
November 48° 64° 34° (1985) 86° (1966) 3.47" 0"
December 43° 57° 24° (1990) 83° (1979) 3.3" 0"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jun 1 53° 70° 48° (1971) 87° (1987) 0.01" NA
Jun 2 53° 70° 49° (1990) 93° (1987) 0.01" NA
Jun 3 53° 70° 48° (1966) 104° (1960) 0.01" NA
Jun 4 53° 70° 49° (1969) 90° (1955) 0.01" NA
Jun 5 53° 70° 46° (1980) 86° (1983) 0.01" NA
Jun 6 53° 70° 49° (1954) 86° (1983) 0.01" NA
Jun 7 53° 70° 49° (1951) 87° (1979) 0.01" NA
Jun 8 53° 70° 49° (1969) 94° (1973) 0.01" NA
Jun 9 53° 70° 48° (1977) 92° (1986) 0.01" NA
Jun 10 53° 71° 45° (1972) 90° (1994) 0.01" NA
Jun 11 53° 71° 49° (1972) 88° (2002) 0.01" NA
Jun 12 53° 71° 45° (1952) 80° (1990) 0.01" NA
Jun 13 54° 71° 49° (1952) 89° (2000) 0.01" NA
Jun 14 54° 71° 46° (1955) 106° (2000) 0.01" NA
Jun 15 54° 71° 49° (1965) 100° (2000) 0.01" NA
Jun 16 54° 71° 50° (1977) 89° (1957) 0.01" NA
Jun 17 54° 71° 49° (1961) 94° (1957) 0.01" NA
Jun 18 54° 71° 51° (1959) 85° (1957) 0" NA
Jun 19 54° 71° 43° (1975) 94° (1981) 0" NA
Jun 20 54° 71° 51° (1952) 100° (1973) 0" NA
Jun 21 54° 71° 51° (1991) 96° (1989) 0" NA
Jun 22 54° 71° 51° (1975) 94° (1989) 0" NA
Jun 23 54° 71° 50° (1984) 99° (1976) 0" NA
Jun 24 54° 71° 50° (1984) 102° (1976) 0" NA
Jun 25 54° 71° 46° (1975) 97° (1976) 0" NA
Jun 26 54° 71° 51° (1965) 97° (1976) 0" NA
Jun 27 54° 71° 46° (1961) 99° (1976) 0" NA
Jun 28 54° 71° 51° (1959) 89° (1976) 0" NA
Jun 29 54° 71° 47° (1985) 95° (1985) 0" NA
Jun 30 54° 71° 52° (1952) 91° (1996) 0" NA
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