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
Mar 1 8.3° 21.1° 0° (1962) 31° (1967) 0.13" NA
Mar 2 8.3° 21.1° 0° (1979) 29° (1968) 0.13" NA
Mar 3 8.3° 21.1° -1° (1953) 30° (1968) 0.13" NA
Mar 4 8.3° 21.1° -1° (1966) 34° (1972) 0.13" NA
Mar 5 8.3° 21.1° 1° (1951) 36° (1972) 0.13" NA
Mar 6 8.3° 21.1° 2° (1984) 33° (1972) 0.13" NA
Mar 7 8.3° 21.1° 2° (1982) 29° (1955) 0.13" NA
Mar 8 8.3° 21.1° 1° (1962) 28° (1984) 0.13" NA
Mar 9 8.3° 21.1° 1° (1962) 29° (1983) 0.13" NA
Mar 10 8.3° 21.1° 1° (1952) 28° (1959) 0.13" NA
Mar 11 8.3° 21.1° 3° (1969) 32° (1974) 0.13" NA
Mar 12 8.3° 21.1° 2° (1954) 32° (1974) 0.13" NA
Mar 13 8.3° 21.1° 2° (1954) 28° (1959) 0.13" NA
Mar 14 8.3° 21.1° 3° (1952) 30° (1974) 0.12" NA
Mar 15 8.3° 21.1° 2° (1977) 32° (1974) 0.12" NA
Mar 16 8.3° 21.7° 2° (1952) 33° (1972) 0.12" NA
Mar 17 8.3° 21.7° 1° (1952) 36° (1978) 0.12" NA
Mar 18 8.3° 21.7° 0° (1961) 33° (1978) 0.12" NA
Mar 19 8.3° 21.7° 2° (1980) 33° (1960) 0.11" NA
Mar 20 8.3° 21.7° 0° (1982) 33° (1960) 0.11" NA
Mar 21 8.3° 21.7° 2° (1955) 32° (1960) 0.11" NA
Mar 22 8.3° 21.7° 2° (1980) 31° (1967) 0.1" NA
Mar 23 8.3° 22.2° 1° (1980) 31° (1953) 0.1" NA
Mar 24 8.3° 22.2° 1° (1964) 31° (1956) 0.1" NA
Mar 25 8.3° 22.2° 2° (1964) 32° (1969) 0.09" NA
Mar 26 8.3° 22.2° 3° (1960) 33° (1969) 0.09" NA
Mar 27 8.3° 22.2° 2° (1954) 33° (1968) 0.09" NA
Mar 28 8.3° 22.2° 2° (1954) 34° (1968) 0.08" NA
Mar 29 8.9° 22.8° 2° (1982) 36° (1971) 0.08" NA
Mar 30 8.9° 22.8° 3° (1980) 33° (1966) 0.07" NA
Mar 31 8.9° 22.8° 2° (1982) 36° (1966) 0.07" NA
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