San Dimas, California
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 43° 68° 21° (1963) 91° (2003) 3.11" 0"
February 45° 69° 23° (1989) 94° (1995) 4.76" 0"
March 47° 71° 26° (1948) 100° (1988) 2.63" 0"
April 49° 76° 29° (1953) 104° (1989) 1.2" 0"
May 54° 79° 34° (1950) 106° (1984) 0.23" 0"
June 58° 84° 39° (1953) 106° (1950) 0.09" 0"
July 62° 90° 41° (1948) 113° (2006) 0" 0"
August 62° 92° 43° (1950) 109° (1967) 0.03" 0"
September 60° 89° 38° (1948) 113° (1948) 0.15" 0"
October 55° 80° 29° (1935) 107° (1950) 1.05" 0"
November 47° 74° 24° (1938) 97° (1976) 1.62" 0"
December 42° 68° 22° (1990) 93° (1979) 2.45" 0"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jan 1 42° 67° 25° (1954) 86° (1964) 0.12" 0"
Jan 2 42° 67° 23° (1960) 81° (1994) 0.13" 0"
Jan 3 43° 67° 22° (1949) 88° (1994) 0.12" 0"
Jan 4 43° 67° 23° (1949) 82° (1969) 0.12" 0"
Jan 5 43° 67° 22° (1949) 85° (1969) 0.12" 0"
Jan 6 43° 68° 25° (1950) 84° (1969) 0.12" 0"
Jan 7 43° 68° 24° (1950) 88° (1962) 0.12" 0"
Jan 8 43° 68° 26° (1937) 83° (1962) 0.12" 0"
Jan 9 43° 68° 25° (1937) 85° (1983) 0.11" 0"
Jan 10 43° 68° 26° (1937) 86° (1986) 0.11" 0"
Jan 11 43° 68° 25° (1937) 88° (1986) 0.11" 0"
Jan 12 43° 68° 25° (1949) 88° (1986) 0.11" 0"
Jan 13 43° 68° 21° (1963) 85° (1986) 0.11" 0"
Jan 14 43° 68° 26° (1963) 89° (2009) 0.1" 0"
Jan 15 43° 68° 24° (1963) 89° (1975) 0.1" 0"
Jan 16 43° 68° 25° (1987) 85° (1961) 0.11" 0"
Jan 17 43° 68° 25° (1987) 88° (1976) 0.1" 0"
Jan 18 43° 68° 27° (1928) 88° (1976) 0.1" 0"
Jan 19 43° 68° 25° (1947) 88° (1971) 0.09" 0"
Jan 20 43° 69° 25° (1963) 87° (1971) 0.09" 0"
Jan 21 44° 69° 24° (1937) 80° (1968) 0.09" 0"
Jan 22 44° 69° 23° (1937) 78° (1968) 0.08" 0"
Jan 23 44° 69° 23° (1937) 83° (1946) 0.08" 0"
Jan 24 44° 69° 25° (1937) 84° (1951) 0.08" 0"
Jan 25 44° 69° 26° (1937) 84° (1986) 0.08" 0"
Jan 26 44° 69° 25° (1937) 90° (1987) 0.08" 0"
Jan 27 44° 69° 26° (1948) 91° (2003) 0.07" 0"
Jan 28 44° 69° 26° (1948) 84° (1988) 0.08" 0"
Jan 29 44° 69° 26° (1948) 86° (2003) 0.08" 0"
Jan 30 44° 69° 25° (1949) 91° (2003) 0.09" 0"
Jan 31 44° 69° 26° (1946) 91° (2003) 0.09" 0"
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