San Marcos, California
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 42° 68° 25° (2007) 92° (2003) 3.37" NA
February 45° 69° 27° (1990) 94° (1988) 3.16" NA
March 47° 70° 33° (1985) 97° (1988) 3.3" NA
April 50° 75° 36° (1999) 103° (1989) 1.04" NA
May 54° 77° 31° (2003) 103° (2004) 0.27" NA
June 58° 84° 41° (2003) 105° (1994) 0.11" NA
July 61° 89° 52° (1980) 112° (2006) 0.07" NA
August 63° 89° 54° (1991) 109° (1994) 0.02" NA
September 61° 87° 49° (1982) 108° (1988) 0.22" NA
October 55° 81° 39° (1981) 105° (1991) 0.44" NA
November 46° 74° 29° (1979) 98° (1997) 1.32" NA
December 42° 69° 26° (1990) 90° (1980) 1.78" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 59° 84° 48° (1982) 101° (1991) 0.01" NA
Oct 2 58° 84° 49° (2002) 98° (1991) 0.01" NA
Oct 3 58° 84° 48° (2002) 102° (1987) 0.01" NA
Oct 4 58° 84° 48° (2002) 105° (1987) 0.01" NA
Oct 5 58° 84° 50° (2002) 100° (1987) 0.01" NA
Oct 6 58° 83° 49° (1994) 95° (1987) 0.01" NA
Oct 7 57° 83° 49° (1994) 98° (1991) 0.01" NA
Oct 8 57° 83° 49° (2007) 96° (1999) 0.01" NA
Oct 9 57° 83° 49° (1998) 97° (1999) 0.01" NA
Oct 10 57° 82° 50° (2007) 105° (1991) 0.01" NA
Oct 11 56° 82° 49° (1990) 99° (1991) 0.01" NA
Oct 12 56° 82° 47° (1997) 93° (1983) 0.01" NA
Oct 13 56° 82° 40° (2006) 96° (1999) 0.01" NA
Oct 14 56° 82° 40° (1981) 97° (1997) 0.01" NA
Oct 15 55° 81° 49° (1981) 98° (1997) 0.01" NA
Oct 16 55° 81° 43° (1981) 98° (1997) 0.01" NA
Oct 17 55° 81° 44° (1981) 94° (1997) 0.01" NA
Oct 18 54° 81° 42° (1980) 96° (1989) 0.01" NA
Oct 19 54° 80° 44° (1984) 93° (1989) 0.01" NA
Oct 20 54° 80° 48° (1980) 96° (1999) 0.01" NA
Oct 21 54° 80° 46° (1996) 94° (1999) 0.02" NA
Oct 22 53° 80° 45° (1996) 93° (1999) 0.02" NA
Oct 23 53° 79° 41° (1996) 94° (1982) 0.02" NA
Oct 24 53° 79° 45° (1981) 93° (1990) 0.02" NA
Oct 25 52° 79° 46° (1995) 95° (1990) 0.02" NA
Oct 26 52° 79° 46° (1984) 96° (1990) 0.02" NA
Oct 27 52° 78° 43° (1996) 90° (2006) 0.02" NA
Oct 28 52° 78° 39° (1981) 89° (1990) 0.02" NA
Oct 29 51° 78° 41° (1996) 87° (1990) 0.02" NA
Oct 30 51° 78° 40° (1979) 91° (1999) 0.03" NA
Oct 31 51° 77° 39° (1979) 91° (1999) 0.03" NA
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