Half Moon Bay, California
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 42° 59° 27° (2007) 74° (1962) 5.53" 0"
February 42° 60° 22° (2003) 78° (1986) 5.36" 0"
March 43° 60° 28° (2007) 86° (2005) 4.22" 0"
April 43° 61° 32° (2007) 87° (1989) 1.9" 0"
May 47° 61° 35° (1991) 90° (1975) 0.98" 0"
June 49° 64° 36° (2007) 94° (2000) 0.29" 0"
July 52° 65° 40° (1982) 84° (2002) 0.14" 0"
August 52° 66° 41° (1981) 94° (1968) 0.22" 0"
September 50° 66° 35° (2007) 94° (1983) 0.37" 0"
October 47° 66° 35° (2007) 94° (2003) 1.56" 0"
November 44° 62° 30° (2003) 87° (1966) 3.32" 0"
December 42° 59° 18° (1983) 79° (1958) 5.28" 0"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 42° 60° 27° (1991) 75° (2002) 0.15" 0"
Dec 2 42° 60° 32° (2004) 75° (1959) 0.15" 0"
Dec 3 42° 60° 18° (1983) 75° (1958) 0.14" 0"
Dec 4 42° 60° 31° (2004) 79° (1958) 0.15" 0"
Dec 5 42° 60° 34° (1972) 72° (1958) 0.15" 0"
Dec 6 42° 60° 31° (2009) 69° (1962) 0.16" 0"
Dec 7 42° 60° 32° (1956) 71° (1959) 0.16" 0"
Dec 8 42° 59° 28° (2009) 70° (1988) 0.16" 0"
Dec 9 42° 59° 27° (1972) 68° (1979) 0.17" 0"
Dec 10 42° 59° 29° (1972) 68° (1950) 0.16" 0"
Dec 11 42° 59° 29° (1972) 73° (1958) 0.16" 0"
Dec 12 42° 59° 31° (2007) 73° (1958) 0.15" 0"
Dec 13 42° 59° 31° (2007) 75° (1958) 0.16" 0"
Dec 14 42° 59° 30° (2007) 68° (1988) 0.16" 0"
Dec 15 42° 59° 34° (1965) 73° (1980) 0.16" 0"
Dec 16 42° 59° 33° (2005) 72° (1980) 0.16" 0"
Dec 17 42° 59° 35° (1967) 72° (1998) 0.17" 0"
Dec 18 42° 59° 29° (2006) 68° (1958) 0.17" 0"
Dec 19 42° 59° 29° (2006) 72° (1999) 0.18" 0"
Dec 20 42° 59° 31° (1968) 71° (1999) 0.18" 0"
Dec 21 42° 59° 24° (1990) 72° (1999) 0.2" 0"
Dec 22 42° 59° 24° (1990) 71° (1999) 0.19" 0"
Dec 23 42° 59° 19° (1990) 68° (1960) 0.2" 0"
Dec 24 42° 59° 28° (1990) 69° (1960) 0.2" 0"
Dec 25 42° 59° 29° (1988) 74° (1967) 0.19" 0"
Dec 26 42° 59° 34° (1966) 74° (1967) 0.19" 0"
Dec 27 42° 59° 29° (2007) 72° (1967) 0.18" 0"
Dec 28 42° 58° 30° (2007) 70° (1999) 0.19" 0"
Dec 29 42° 58° 32° (2006) 71° (1956) 0.18" 0"
Dec 30 42° 58° 32° (1959) 67° (1997) 0.18" 0"
Dec 31 42° 58° 31° (1951) 70° (1963) 0.18" 0"
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