Chelsea, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 28° -28° (1996) 65° (1989) 1.08" 7.5"
February 13° 34° -35° (1996) 70° (2000) 1.28" 6.7"
March 25° 46° -23° (1962) 88° (1986) 2.1" 4.1"
April 37° 61° 8° (1982) 95° (1986) 3.38" 1.2"
May 48° 71° 22° (2005) 94° (1956) 4.21" 0"
June 58° 80° 38° (1993) 102° (1988) 5.14" 0"
July 62° 84° 43° (1972) 105° (1955) 4.48" 0"
August 60° 82° 36° (1950) 105° (1988) 4.39" 0"
September 50° 75° 26° (1984) 100° (1955) 3.46" 0"
October 38° 63° 11° (1997) 93° (1963) 2.89" 0.3"
November 26° 47° -10° (1977) 80° (1999) 2.32" 1.7"
December 14° 32° -30° (1985) 69° (1998) 1.5" 7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 56° 80° 37° (1949) 99° (1953) 0.12" 0"
Sep 2 56° 80° 44° (1952) 96° (1953) 0.12" 0"
Sep 3 56° 80° 38° (1952) 99° (2000) 0.12" 0"
Sep 4 55° 79° 37° (1974) 96° (1954) 0.11" 0"
Sep 5 55° 79° 39° (1962) 94° (1960) 0.13" 0"
Sep 6 54° 79° 37° (1988) 95° (1985) 0.12" 0"
Sep 7 54° 78° 36° (1956) 97° (1985) 0.12" 0"
Sep 8 53° 78° 34° (1986) 93° (1959) 0.12" 0"
Sep 9 53° 78° 39° (1995) 100° (1955) 0.12" 0"
Sep 10 52° 77° 35° (1976) 92° (2002) 0.11" 0"
Sep 11 52° 77° 35° (1955) 93° (2000) 0.12" 0"
Sep 12 52° 77° 32° (1955) 96° (2000) 0.11" 0"
Sep 13 51° 76° 34° (1953) 90° (1998) 0.11" 0"
Sep 14 51° 76° 36° (1996) 92° (1955) 0.12" 0"
Sep 15 50° 76° 32° (2007) 96° (1955) 0.11" 0"
Sep 16 50° 75° 30° (2007) 93° (1955) 0.11" 0"
Sep 17 49° 75° 37° (1999) 93° (1955) 0.11" 0"
Sep 18 49° 74° 36° (1973) 94° (1955) 0.12" 0"
Sep 19 48° 74° 32° (1991) 96° (1948) 0.12" 0"
Sep 20 48° 74° 28° (1991) 88° (1970) 0.12" 0"
Sep 21 47° 73° 34° (2006) 87° (1986) 0.12" 0"
Sep 22 47° 73° 29° (1953) 87° (2007) 0.12" 0"
Sep 23 46° 72° 30° (1983) 82° (2004) 0.11" 0"
Sep 24 46° 72° 28° (1989) 90° (1984) 0.11" 0"
Sep 25 45° 71° 33° (1995) 90° (1956) 0.11" 0"
Sep 26 45° 71° 30° (1984) 88° (1953) 0.11" 0"
Sep 27 44° 71° 33° (1985) 92° (1954) 0.11" 0"
Sep 28 44° 70° 30° (1951) 99° (1953) 0.11" 0"
Sep 29 43° 70° 26° (1984) 93° (1953) 0.11" 0"
Sep 30 43° 69° 28° (1972) 93° (1952) 0.11" 0"
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