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) 3.42" 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 17° 35° 8.9° (1982) 45.6° (1972) 0" 0"
August 17° 35° 8.9° (1978) 43.9° (1981) 0.11" 0"
September 17° 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 21° -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
Apr 1 8.9° 22.8° 2° (1984) 35° (1959) 0.06" NA
Apr 2 8.9° 23.3° 1° (1956) 33° (1961) 0.06" NA
Apr 3 8.9° 23.3° 3° (1955) 38° (1961) 0.06" NA
Apr 4 8.9° 23.3° 3° (1981) 34° (1961) 0.05" NA
Apr 5 8.9° 23.3° 2° (1959) 35° (1960) 0.05" NA
Apr 6 8.9° 23.3° 4° (1979) 33° (1962) 0.04" NA
Apr 7 8.9° 23.9° 2° (1982) 35° (1974) 0.04" NA
Apr 8 8.9° 23.9° 2° (1983) 33° (1968) 0.04" NA
Apr 9 8.9° 23.9° 1° (1953) 32° (1968) 0.03" NA
Apr 10 8.9° 23.9° 2° (1953) 35° (1968) 0.03" NA
Apr 11 8.9° 24.4° 4° (1979) 33° (1968) 0.03" NA
Apr 12 8.9° 24.4° 1° (1953) 33° (1962) 0.02" NA
Apr 13 8.9° 24.4° 0° (1983) 38° (1984) 0.02" NA
Apr 14 9.4° 24.4° 1° (1983) 39° (1984) 0.02" NA
Apr 15 9.4° 24.4° 3° (1963) 37° (1966) 0.02" NA
Apr 16 9.4° 24.4° 3° (1983) 35° (1984) 0.01" NA
Apr 17 9.4° 25° 3° (1963) 36° (1954) 0.01" NA
Apr 18 9.4° 25° 3° (1959) 33° (1980) 0.01" NA
Apr 19 9.4° 25° 4° (1959) 33° (1980) 0.01" NA
Apr 20 9.4° 25° -1° (1955) 33° (1956) 0.01" NA
Apr 21 9.4° 25° 3° (1963) 34° (1958) 0.01" NA
Apr 22 9.4° 25° 3° (1978) 34° (1962) 0" NA
Apr 23 10° 25° 4° (1978) 36° (1984) 0" NA
Apr 24 10° 25° 4° (1979) 34° (1965) 0" NA
Apr 25 10° 25.6° 2° (1959) 34° (1965) 0" NA
Apr 26 10° 25.6° 6° (1959) 34° (1965) 0" NA
Apr 27 10° 25.6° 4° (1955) 32° (1965) 0" NA
Apr 28 10° 25.6° 2° (1984) 35° (1965) 0" NA
Apr 29 10.6° 25.6° 4° (1970) 36° (1959) 0" NA
Apr 30 10.6° 25.6° 2° (1960) 36° (1976) 0" NA
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