Grass Valley, Oregon
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 25° 38° -22° (1957) 63° (2003) 1.57" 5.7"
February 28° 44° -23° (1950) 68° (1932) 1.14" 2.9"
March 32° 51° 3° (1993) 75° (1939) 1.09" 1.2"
April 36° 58° 19° (1966) 87° (1977) 0.88" 0.2"
May 41° 66° 20° (1954) 100° (1986) 0.89" 0"
June 47° 73° 27° (1976) 102° (1992) 0.62" 0"
July 53° 82° 34° (1954) 111° (1939) 0.31" 0"
August 53° 82° 31° (1980) 106° (1998) 0.38" 0"
September 45° 74° 23° (1980) 100° (1998) 0.52" 0"
October 37° 62° 7° (2002) 88° (1991) 0.85" 0.2"
November 31° 47° -15° (1985) 71° (1999) 1.64" 2.6"
December 25° 38° -16° (1990) 63° (1989) 1.54" 6.1"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jan 1 24° 37° -14° (1979) 55° (1997) 0.05" NA
Jan 2 24° 37° -12° (1979) 57° (1998) 0.05" NA
Jan 3 24° 37° -10° (1959) 56° (1996) 0.05" NA
Jan 4 24° 37° -8° (1959) 58° (1989) 0.05" NA
Jan 5 24° 37° -8° (1974) 55° (1954) 0.05" NA
Jan 6 24° 37° -10° (1979) 55° (1983) 0.05" NA
Jan 7 24° 37° -10° (1979) 58° (1945) 0.05" NA
Jan 8 24° 37° -11° (1974) 59° (2002) 0.05" NA
Jan 9 24° 38° -9° (1974) 56° (1953) 0.05" NA
Jan 10 24° 38° -8° (1974) 60° (1990) 0.05" NA
Jan 11 24° 38° -10° (1974) 62° (1999) 0.05" NA
Jan 12 24° 38° -6° (1937) 57° (1983) 0.06" NA
Jan 13 24° 38° -2° (1930) 58° (1996) 0.06" NA
Jan 14 25° 38° -11° (1950) 58° (1994) 0.05" NA
Jan 15 25° 38° -7° (1950) 57° (1958) 0.05" NA
Jan 16 25° 38° -9° (1957) 56° (1973) 0.05" NA
Jan 17 25° 38° -16° (1930) 61° (1976) 0.05" NA
Jan 18 25° 38° -14° (1943) 58° (1975) 0.05" NA
Jan 19 25° 38° -6° (1957) 59° (1977) 0.05" NA
Jan 20 25° 39° -13° (1930) 60° (1994) 0.05" NA
Jan 21 25° 39° -18° (1930) 62° (1968) 0.05" NA
Jan 22 25° 39° -16° (1930) 61° (2005) 0.05" NA
Jan 23 25° 39° -9° (1930) 54° (1934) 0.05" NA
Jan 24 25° 39° -9° (1949) 59° (1935) 0.05" NA
Jan 25 25° 39° -11° (1949) 58° (1935) 0.05" NA
Jan 26 25° 39° -22° (1957) 56° (2003) 0.05" NA
Jan 27 25° 40° -22° (1957) 63° (2003) 0.05" NA
Jan 28 25° 40° -21° (1957) 59° (1931) 0.05" NA
Jan 29 26° 40° -13° (1950) 58° (1971) 0.05" NA
Jan 30 26° 40° -11° (1950) 60° (1971) 0.05" NA
Jan 31 26° 40° -17° (1950) 63° (1971) 0.05" NA
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