Index, Washington
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 31° 40° 3° (1982) 62° (2005) 16.05" 20.5"
February 32° 46° 6° (1989) 73° (1992) 11.92" 11"
March 34° 52° 16° (1989) 80° (1994) 10.24" 3.8"
April 38° 59° 27° (1975) 91° (1998) 7.83" 1"
May 43° 65° 30° (1972) 100° (1983) 5.58" 0"
June 48° 69° 31° (1976) 98° (1970) 4.04" 0"
July 51° 75° 37° (1971) 100° (2006) 2.41" 0"
August 52° 75° 38° (1973) 98° (1981) 2.45" 0"
September 47° 70° 30° (1972) 98° (1988) 4.77" 0"
October 41° 59° 23° (2002) 86° (1980) 9.97" 0"
November 35° 46° 8° (1985) 70° (1970) 18.03" 6"
December 31° 40° 1° (1990) 60° (2002) 16.63" 15.5"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Apr 1 35° 55° 27° (1975) 80° (1987) 0.29" NA
Apr 2 36° 56° 28° (1976) 84° (1992) 0.29" NA
Apr 3 36° 56° 27° (1972) 73° (1995) 0.29" NA
Apr 4 36° 56° 29° (1997) 78° (2004) 0.29" NA
Apr 5 36° 56° 29° (1975) 80° (1977) 0.29" NA
Apr 6 36° 57° 28° (1982) 77° (1977) 0.29" NA
Apr 7 36° 57° 28° (1973) 82° (1977) 0.28" NA
Apr 8 36° 57° 28° (1975) 73° (1996) 0.28" NA
Apr 9 37° 57° 28° (1982) 79° (1985) 0.28" NA
Apr 10 37° 58° 28° (1972) 74° (1988) 0.28" NA
Apr 11 37° 58° 30° (1997) 82° (2004) 0.27" NA
Apr 12 37° 58° 29° (1971) 83° (2004) 0.27" NA
Apr 13 37° 58° 29° (1970) 82° (1980) 0.27" NA
Apr 14 37° 59° 29° (1970) 78° (1984) 0.27" NA
Apr 15 37° 59° 30° (1970) 77° (1990) 0.26" NA
Apr 16 38° 59° 29° (1972) 80° (1990) 0.26" NA
Apr 17 38° 59° 30° (1970) 80° (1983) 0.26" NA
Apr 18 38° 60° 29° (1972) 76° (1994) 0.26" NA
Apr 19 38° 60° 28° (1972) 75° (1991) 0.25" NA
Apr 20 38° 60° 29° (1977) 77° (1991) 0.25" NA
Apr 21 38° 60° 29° (1975) 76° (1982) 0.25" NA
Apr 22 39° 60° 30° (1971) 83° (1982) 0.25" NA
Apr 23 39° 61° 32° (1972) 79° (1977) 0.24" NA
Apr 24 39° 61° 28° (1986) 80° (1977) 0.24" NA
Apr 25 39° 61° 28° (1986) 82° (1992) 0.24" NA
Apr 26 39° 61° 30° (1984) 84° (1987) 0.23" NA
Apr 27 39° 62° 32° (1984) 87° (1987) 0.23" NA
Apr 28 40° 62° 32° (1973) 76° (1998) 0.23" NA
Apr 29 40° 62° 29° (1975) 83° (1998) 0.22" NA
Apr 30 40° 62° 29° (1972) 91° (1998) 0.22" NA
Advertisements
Track Severe Weather on mobile