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
Mar 1 46° 69° 38° (1997) 81° (1994) 0.12" NA
Mar 2 46° 69° 37° (1997) 83° (1994) 0.12" NA
Mar 3 46° 69° 33° (1985) 80° (1987) 0.12" NA
Mar 4 46° 69° 33° (1985) 88° (1987) 0.12" NA
Mar 5 46° 69° 34° (1985) 85° (1987) 0.12" NA
Mar 6 46° 70° 37° (1984) 86° (1993) 0.12" NA
Mar 7 46° 70° 35° (1985) 88° (2004) 0.12" NA
Mar 8 46° 70° 37° (2000) 91° (1996) 0.12" NA
Mar 9 46° 70° 37° (2000) 87° (2004) 0.12" NA
Mar 10 46° 70° 37° (2000) 92° (1997) 0.12" NA
Mar 11 46° 70° 41° (1988) 92° (2007) 0.12" NA
Mar 12 46° 70° 37° (1990) 94° (2007) 0.12" NA
Mar 13 47° 70° 37° (1990) 84° (1994) 0.12" NA
Mar 14 47° 70° 37° (2002) 85° (1994) 0.11" NA
Mar 15 47° 70° 38° (2002) 83° (1994) 0.11" NA
Mar 16 47° 70° 34° (1991) 81° (1990) 0.11" NA
Mar 17 47° 70° 39° (1991) 88° (2004) 0.11" NA
Mar 18 47° 70° 39° (1991) 89° (1997) 0.11" NA
Mar 19 47° 70° 37° (2002) 96° (1997) 0.11" NA
Mar 20 47° 71° 36° (1982) 96° (1997) 0.1" NA
Mar 21 47° 71° 36° (1982) 87° (1997) 0.1" NA
Mar 22 47° 71° 40° (1982) 84° (1986) 0.1" NA
Mar 23 47° 71° 36° (2003) 85° (1998) 0.1" NA
Mar 24 47° 71° 41° (1996) 90° (1988) 0.1" NA
Mar 25 47° 71° 38° (1995) 96° (1988) 0.09" NA
Mar 26 48° 71° 38° (1995) 97° (1988) 0.09" NA
Mar 27 48° 72° 41° (1995) 89° (1986) 0.09" NA
Mar 28 48° 72° 41° (1995) 82° (1988) 0.08" NA
Mar 29 48° 72° 37° (1985) 82° (1988) 0.08" NA
Mar 30 48° 72° 36° (1998) 87° (2003) 0.08" NA
Mar 31 48° 72° 35° (2003) 89° (1987) 0.07" NA
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