Grotto, Washington
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 32° 43° 3° (1982) 62° (2005) 15.95" 15.8"
February 32° 48° 6° (1989) 73° (1992) 10.61" 8.2"
March 35° 53° 16° (1989) 80° (1994) 10.39" 3.2"
April 38° 59° 27° (1975) 91° (1998) 7.83" 0.9"
May 44° 65° 30° (1972) 100° (1983) 5.56" 0"
June 49° 70° 31° (1976) 98° (1970) 4.2" 0"
July 52° 76° 37° (1971) 100° (2006) 2.06" 0"
August 52° 76° 38° (1973) 98° (1981) 1.96" 0"
September 48° 71° 30° (1972) 98° (1988) 4.55" 0"
October 42° 59° 23° (2002) 86° (1980) 11" 0"
November 36° 47° 8° (1985) 70° (1970) 18.94" 4.6"
December 31° 41° 1° (1990) 60° (2002) 13.98" 16.6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 53° 78° 47° (1975) 91° (2009) 0.04" 0"
Aug 2 53° 78° 44° (1987) 92° (2009) 0.03" 0"
Aug 3 53° 78° 44° (2002) 93° (1993) 0.04" 0"
Aug 4 53° 78° 44° (1979) 92° (1993) 0.04" 0"
Aug 5 53° 78° 45° (1978) 91° (2005) 0.03" 0"
Aug 6 53° 77° 41° (1975) 91° (2008) 0.04" 0"
Aug 7 53° 77° 46° (1974) 91° (1981) 0.04" 0"
Aug 8 53° 77° 43° (1979) 95° (1978) 0.05" 0"
Aug 9 53° 77° 42° (1975) 98° (1981) 0.04" 0"
Aug 10 53° 77° 45° (1970) 96° (1981) 0.05" 0"
Aug 11 53° 77° 44° (1972) 95° (1990) 0.05" 0"
Aug 12 53° 77° 42° (2000) 93° (1977) 0.05" 0"
Aug 13 53° 77° 43° (2000) 90° (1992) 0.05" 0"
Aug 14 53° 77° 43° (2000) 90° (2002) 0.06" 0"
Aug 15 53° 77° 43° (1982) 93° (2010) 0.06" 0"
Aug 16 53° 77° 42° (2000) 97° (2010) 0.06" 0"
Aug 17 53° 77° 42° (1970) 96° (1977) 0.06" 0"
Aug 18 52° 76° 38° (1973) 90° (2010) 0.07" 0"
Aug 19 52° 76° 42° (1973) 86° (1991) 0.07" 0"
Aug 20 52° 76° 41° (1973) 90° (2009) 0.08" 0"
Aug 21 52° 76° 40° (1973) 88° (2009) 0.07" 0"
Aug 22 52° 76° 39° (1973) 85° (2003) 0.08" 0"
Aug 23 52° 76° 38° (1973) 86° (1985) 0.07" 0"
Aug 24 52° 76° 42° (1992) 87° (1982) 0.08" 0"
Aug 25 52° 75° 40° (1973) 87° (2010) 0.08" 0"
Aug 26 52° 75° 43° (1991) 89° (2010) 0.08" 0"
Aug 27 51° 75° 40° (2000) 87° (1986) 0.09" 0"
Aug 28 51° 75° 42° (2000) 93° (2009) 0.1" 0"
Aug 29 51° 75° 39° (1980) 93° (1996) 0.1" 0"
Aug 30 51° 75° 44° (1972) 89° (2007) 0.1" 0"
Aug 31 51° 75° 42° (1977) 89° (1987) 0.1" 0"
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