Grass Valley, California
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 33° 53° 15° (1979) 77° (1975) 8.88" 0.6"
February 34° 55° 9° (1989) 81° (1971) 9.35" 2.7"
March 37° 58° 19° (1970) 81° (1986) 8.06" 2.5"
April 40° 63° 26° (1999) 88° (1987) 4.02" 0.4"
May 46° 71° 27° (1988) 99° (1984) 2.38" 0"
June 52° 80° 36° (1988) 100° (2000) 0.62" 0"
July 57° 87° 40° (1987) 108° (1972) 0.01" 0"
August 56° 87° 41° (1989) 108° (1971) 0.16" 0"
September 51° 81° 35° (2007) 104° (1971) 0.86" 0"
October 44° 71° 27° (1969) 97° (2001) 2.84" 0"
November 37° 59° 19° (1977) 87° (1966) 6.57" 0.3"
December 33° 52° 3° (1972) 80° (1980) 10.32" 1.5"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 47° 77° 34° (1971) 95° (1987) 0.05" 0"
Oct 2 47° 77° 35° (1971) 97° (2001) 0.05" 0"
Oct 3 47° 76° 36° (1973) 95° (1980) 0.05" 0"
Oct 4 47° 76° 35° (1969) 93° (1987) 0.05" 0"
Oct 5 46° 76° 36° (2009) 94° (1987) 0.05" 0"
Oct 6 46° 75° 33° (2007) 92° (1987) 0.05" 0"
Oct 7 46° 75° 32° (1967) 93° (1987) 0.06" 0"
Oct 8 46° 75° 36° (1968) 93° (1980) 0.05" 0"
Oct 9 45° 74° 37° (1968) 93° (1971) 0.06" 0"
Oct 10 45° 74° 33° (2008) 91° (1971) 0.07" 0"
Oct 11 45° 73° 32° (2008) 95° (1991) 0.07" 0"
Oct 12 45° 73° 30° (2008) 93° (1991) 0.07" 0"
Oct 13 44° 73° 31° (2008) 91° (1971) 0.08" 0"
Oct 14 44° 72° 27° (1969) 90° (1978) 0.09" 0"
Oct 15 44° 72° 32° (1966) 91° (1991) 0.08" 0"
Oct 16 44° 71° 33° (1966) 89° (1991) 0.1" 0"
Oct 17 43° 71° 32° (1971) 90° (1974) 0.09" 0"
Oct 18 43° 71° 29° (1984) 87° (1974) 0.1" 0"
Oct 19 43° 70° 29° (1984) 90° (1974) 0.1" 0"
Oct 20 43° 70° 31° (1996) 83° (1967) 0.11" 0"
Oct 21 42° 69° 31° (1996) 87° (1991) 0.1" 0"
Oct 22 42° 69° 32° (1984) 87° (2003) 0.11" 0"
Oct 23 42° 69° 30° (1975) 82° (1988) 0.11" 0"
Oct 24 42° 68° 31° (1971) 84° (1978) 0.11" 0"
Oct 25 41° 68° 31° (1971) 86° (1966) 0.12" 0"
Oct 26 41° 67° 31° (1996) 87° (2003) 0.12" 0"
Oct 27 41° 67° 30° (1970) 89° (1983) 0.13" 0"
Oct 28 41° 66° 30° (1975) 84° (1968) 0.15" 0"
Oct 29 41° 66° 28° (1971) 82° (2003) 0.14" 0"
Oct 30 40° 66° 29° (1971) 82° (1966) 0.16" 0"
Oct 31 40° 65° 28° (1971) 83° (1966) 0.16" 0"
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