Grass Valley, California
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 31° 53° 15° (1979) 77° (1975) 9.86" 3.6"
February 33° 55° 9° (1989) 81° (1971) 9.21" 1.9"
March 36° 57° 19° (1970) 81° (1986) 8.52" 1.6"
April 39° 63° 26° (1999) 88° (1987) 3.69" 0.9"
May 45° 70° 27° (1988) 99° (1984) 1.97" 0"
June 51° 79° 36° (1988) 100° (2000) 0.62" 0"
July 55° 87° 40° (1987) 108° (1972) 0.18" 0"
August 54° 86° 41° (1989) 108° (1971) 0.23" 0"
September 50° 81° 35° (2007) 104° (1971) 1.1" 0"
October 43° 71° 27° (1969) 97° (2001) 2.72" 0"
November 35° 58° 19° (1977) 87° (1966) 7.08" 0.4"
December 31° 53° 3° (1972) 80° (1980) 7.89" 2.4"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 46° 77° 34° (1971) 95° (1987) 0.05" NA
Oct 2 46° 77° 35° (1971) 97° (2001) 0.05" NA
Oct 3 46° 77° 36° (1973) 95° (1980) 0.05" NA
Oct 4 46° 76° 35° (1969) 93° (1987) 0.05" NA
Oct 5 45° 76° 37° (1969) 94° (1987) 0.05" NA
Oct 6 45° 76° 33° (2007) 92° (1987) 0.05" NA
Oct 7 45° 75° 32° (1967) 93° (1987) 0.05" NA
Oct 8 45° 75° 36° (1968) 93° (1980) 0.05" NA
Oct 9 45° 74° 37° (1968) 93° (1971) 0.06" NA
Oct 10 44° 74° 35° (1973) 91° (1971) 0.06" NA
Oct 11 44° 74° 34° (1997) 95° (1991) 0.06" NA
Oct 12 44° 73° 31° (1981) 93° (1991) 0.06" NA
Oct 13 44° 73° 32° (1966) 91° (1971) 0.07" NA
Oct 14 43° 73° 27° (1969) 90° (1978) 0.07" NA
Oct 15 43° 72° 32° (1966) 91° (1991) 0.07" NA
Oct 16 43° 72° 33° (1966) 89° (1991) 0.08" NA
Oct 17 43° 71° 32° (1971) 90° (1974) 0.08" NA
Oct 18 42° 71° 29° (1984) 87° (1974) 0.09" NA
Oct 19 42° 71° 29° (1984) 90° (1974) 0.09" NA
Oct 20 42° 70° 31° (1996) 83° (1967) 0.09" NA
Oct 21 41° 70° 31° (1996) 87° (1991) 0.1" NA
Oct 22 41° 69° 32° (1984) 87° (2003) 0.11" NA
Oct 23 41° 69° 30° (1975) 82° (1988) 0.11" NA
Oct 24 41° 68° 31° (1971) 84° (1978) 0.12" NA
Oct 25 40° 68° 31° (1971) 86° (1966) 0.12" NA
Oct 26 40° 67° 31° (1996) 87° (2003) 0.13" NA
Oct 27 40° 67° 30° (1970) 89° (1983) 0.14" NA
Oct 28 40° 66° 30° (1975) 84° (1968) 0.14" NA
Oct 29 39° 66° 28° (1971) 82° (2003) 0.15" NA
Oct 30 39° 65° 29° (1971) 82° (1966) 0.16" NA
Oct 31 39° 64° 28° (1971) 83° (1966) 0.16" NA
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