Hillsborough, California
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 43° 56° 26° (1949) 72° (1948) 4.45" 0"
February 46° 59° 30° (1950) 77° (1986) 4.01" 0"
March 47° 61° 31° (1966) 85° (1952) 3.26" 0"
April 48° 64° 36° (1955) 92° (1989) 1.18" 0"
May 51° 67° 39° (1950) 97° (1984) 0.38" 0"
June 53° 70° 43° (1954) 106° (1961) 0.11" 0"
July 55° 71° 44° (1951) 105° (1988) 0.03" 0"
August 56° 72° 45° (1955) 100° (1993) 0.07" 0"
September 55° 73° 41° (1950) 103° (1971) 0.2" 0"
October 52° 70° 37° (1949) 99° (1987) 1.04" 0"
November 48° 62° 31° (1954) 85° (1967) 2.49" 0"
December 43° 56° 24° (1972) 75° (1958) 2.89" 0"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 45° 58° 38° (1976) 70° (1959) 0.09" NA
Dec 2 45° 58° 37° (1967) 75° (1958) 0.09" NA
Dec 3 44° 58° 38° (1976) 73° (1958) 0.09" NA
Dec 4 44° 58° 36° (2004) 75° (1958) 0.09" NA
Dec 5 44° 57° 31° (1972) 69° (1979) 0.08" NA
Dec 6 44° 57° 37° (1972) 67° (1979) 0.08" NA
Dec 7 44° 57° 33° (1960) 69° (1979) 0.08" NA
Dec 8 44° 57° 29° (1978) 69° (1988) 0.08" NA
Dec 9 44° 57° 24° (1972) 67° (1950) 0.08" NA
Dec 10 43° 57° 29° (1972) 70° (1958) 0.08" NA
Dec 11 43° 56° 26° (1972) 74° (1958) 0.09" NA
Dec 12 43° 56° 29° (1972) 75° (1958) 0.09" NA
Dec 13 43° 56° 30° (1972) 69° (1958) 0.09" NA
Dec 14 43° 56° 30° (1972) 69° (1958) 0.09" NA
Dec 15 43° 56° 31° (1967) 71° (1980) 0.09" NA
Dec 16 43° 56° 33° (1965) 70° (1998) 0.09" NA
Dec 17 43° 56° 30° (1965) 67° (1958) 0.09" NA
Dec 18 43° 56° 30° (1965) 65° (1958) 0.09" NA
Dec 19 43° 56° 32° (1965) 68° (1999) 0.09" NA
Dec 20 43° 56° 31° (1965) 69° (1999) 0.09" NA
Dec 21 42° 55° 28° (1990) 68° (1999) 0.09" NA
Dec 22 42° 55° 27° (1990) 68° (1999) 0.1" NA
Dec 23 42° 55° 28° (1990) 64° (2004) 0.1" NA
Dec 24 42° 55° 29° (1990) 65° (1967) 0.1" NA
Dec 25 42° 55° 31° (1990) 68° (1967) 0.1" NA
Dec 26 42° 55° 32° (1954) 72° (1967) 0.1" NA
Dec 27 42° 55° 33° (1962) 70° (1953) 0.11" NA
Dec 28 42° 55° 32° (1966) 71° (1967) 0.11" NA
Dec 29 42° 55° 33° (1988) 65° (1989) 0.11" NA
Dec 30 42° 55° 33° (1990) 69° (1945) 0.11" NA
Dec 31 42° 55° 29° (1978) 67° (1996) 0.12" NA
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