Fontana, California
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 20° -5.6° (1979) 33.9° (1971) 3.5" 0"
February 21° -2.2° (1984) 33.3° (1977) 3.55" 0"
March 22° -1.1° (1966) 36.1° (1978) 3.49" 0"
April 24° -1.1° (1955) 38.9° (1984) 0.63" 0"
May 12° 27° 1.7° (1959) 44.4° (1984) 0.19" 0"
June 14° 31° 5.6° (1962) 43.9° (1961) 0.01" 0"
July 16° 35° 8.9° (1982) 45.6° (1972) 0" 0"
August 17° 35° 8.9° (1978) 43.9° (1981) 0.11" 0"
September 16° 33° 6.7° (1955) 47.2° (1971) 0.26" 0"
October 13° 28° 0.6° (1953) 42.2° (1980) 0.27" 0"
November 23° -1.1° (1983) 35.6° (1966) 1.26" 0"
December 20° -5° (1978) 33.9° (1958) 1.63" 0"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jul 1 15.6° 33.9° 9° (1982) 40° (1984) 0" NA
Jul 2 15.6° 33.9° 9° (1978) 42° (1984) 0" NA
Jul 3 15.6° 33.9° 9° (1978) 42° (1957) 0" NA
Jul 4 15.6° 33.9° 10° (1955) 43° (1957) 0" NA
Jul 5 15.6° 34.4° 11° (1955) 42° (1984) 0" NA
Jul 6 15.6° 34.4° 10° (1979) 41° (1976) 0" NA
Jul 7 16.1° 34.4° 11° (1952) 40° (1976) 0" NA
Jul 8 16.1° 34.4° 11° (1955) 41° (1961) 0" NA
Jul 9 16.1° 34.4° 9° (1955) 42° (1959) 0" NA
Jul 10 16.1° 34.4° 11° (1978) 43° (1959) 0" NA
Jul 11 16.1° 35° 11° (1978) 42° (1971) 0" NA
Jul 12 16.1° 35° 10° (1955) 41° (1971) 0" NA
Jul 13 16.1° 35° 11° (1955) 43° (1984) 0" NA
Jul 14 16.1° 35° 12° (1955) 42° (1978) 0" NA
Jul 15 16.7° 35° 12° (1982) 42° (1960) 0" NA
Jul 16 16.7° 35° 13° (1952) 42° (1960) 0" NA
Jul 17 16.7° 35° 12° (1982) 42° (1960) 0" NA
Jul 18 16.7° 35.6° 11° (1983) 42° (1960) 0" NA
Jul 19 16.7° 35.6° 12° (1965) 43° (1960) 0" NA
Jul 20 16.7° 35.6° 12° (1965) 44° (1960) 0" NA
Jul 21 16.7° 35.6° 13° (1973) 39° (1967) 0" NA
Jul 22 16.7° 35.6° 13° (1957) 40° (1960) 0" NA
Jul 23 16.7° 35.6° 12° (1983) 39° (1972) 0" NA
Jul 24 16.7° 35.6° 13° (1958) 41° (1959) 0" NA
Jul 25 16.7° 35.6° 11° (1983) 41° (1972) 0" NA
Jul 26 16.7° 35.6° 11° (1983) 42° (1977) 0" NA
Jul 27 17.2° 35.6° 12° (1979) 42° (1972) 0" NA
Jul 28 17.2° 35.6° 12° (1983) 46° (1972) 0" NA
Jul 29 17.2° 35.6° 12° (1983) 43° (1972) 0" NA
Jul 30 17.2° 35.6° 12° (1979) 44° (1972) 0" NA
Jul 31 17.2° 35.6° 13° (1981) 43° (1972) 0" NA
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