San Marcos, California
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 43° 69° 25° (2007) 92° (2003) 3.03" 0"
February 45° 69° 27° (1990) 94° (1988) 3.52" 0"
March 47° 71° 33° (1985) 97° (1988) 2.65" 0"
April 51° 75° 36° (1999) 103° (1989) 1.15" 0"
May 55° 78° 31° (2003) 103° (2004) 0.25" 0"
June 59° 82° 41° (2003) 105° (1994) 0.12" 0"
July 62° 87° 52° (1980) 112° (2006) 0.08" 0"
August 63° 89° 54° (1991) 109° (1994) 0.08" 0"
September 62° 87° 49° (1982) 108° (1988) 0.21" 0"
October 55° 81° 39° (1981) 105° (1991) 0.71" 0"
November 48° 74° 29° (1979) 98° (1997) 1.17" 0"
December 42° 68° 26° (1990) 90° (1980) 2.14" 0"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 59° 83° 48° (1982) 101° (1991) 0.02" 0"
Oct 2 59° 83° 49° (2002) 98° (1991) 0.01" 0"
Oct 3 58° 83° 48° (2002) 102° (1987) 0.02" 0"
Oct 4 58° 83° 48° (2002) 105° (1987) 0.02" 0"
Oct 5 58° 82° 50° (2002) 100° (1987) 0.02" 0"
Oct 6 58° 82° 49° (1994) 95° (1987) 0.02" 0"
Oct 7 57° 82° 49° (1994) 98° (1991) 0.02" 0"
Oct 8 57° 82° 49° (2007) 96° (1999) 0.03" 0"
Oct 9 57° 82° 49° (1998) 97° (1999) 0.02" 0"
Oct 10 57° 82° 50° (2007) 105° (1991) 0.02" 0"
Oct 11 57° 81° 49° (1990) 99° (1991) 0.02" 0"
Oct 12 56° 81° 47° (1997) 93° (1983) 0.02" 0"
Oct 13 56° 81° 40° (2006) 96° (1999) 0.02" 0"
Oct 14 56° 81° 40° (1981) 97° (1997) 0.02" 0"
Oct 15 56° 81° 49° (1981) 98° (1997) 0.03" 0"
Oct 16 55° 81° 43° (1981) 98° (1997) 0.02" 0"
Oct 17 55° 80° 44° (1981) 94° (1997) 0.02" 0"
Oct 18 55° 80° 42° (1980) 96° (1989) 0.02" 0"
Oct 19 55° 80° 44° (1984) 93° (1989) 0.03" 0"
Oct 20 55° 80° 48° (1980) 96° (1999) 0.02" 0"
Oct 21 54° 80° 46° (1996) 94° (1999) 0.02" 0"
Oct 22 54° 80° 45° (1996) 93° (1999) 0.03" 0"
Oct 23 54° 80° 41° (1996) 94° (1982) 0.02" 0"
Oct 24 54° 79° 45° (1981) 93° (1990) 0.03" 0"
Oct 25 53° 79° 46° (1995) 95° (1990) 0.02" 0"
Oct 26 53° 79° 46° (1984) 96° (1990) 0.02" 0"
Oct 27 53° 79° 43° (1996) 90° (2006) 0.03" 0"
Oct 28 53° 79° 39° (1981) 89° (1990) 0.02" 0"
Oct 29 52° 79° 41° (1996) 87° (1990) 0.03" 0"
Oct 30 52° 78° 40° (1979) 91° (1999) 0.04" 0"
Oct 31 52° 78° 39° (1979) 91° (1999) 0.03" 0"
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