Green Island, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 13° 30° -23° (1999) 62° (1981) 1.38" 7.4"
February 17° 35° -26° (1996) 68° (1976) 1.55" 5.3"
March 28° 46° -14° (1962) 82° (1986) 2.36" 4.7"
April 40° 60° 13° (1982) 91° (1980) 3.01" 0.9"
May 50° 72° 30° (2005) 92° (1991) 3.69" 0"
June 61° 81° 40° (1993) 98° (1988) 4.16" 0"
July 65° 85° 46° (2000) 102° (2005) 3.3" 0"
August 63° 83° 42° (1999) 102° (1988) 4.33" 0"
September 54° 76° 30° (1991) 96° (1985) 2.83" 0"
October 42° 63° 13° (1952) 90° (2006) 2.82" 0"
November 31° 48° -5° (1977) 82° (2000) 2.47" 1"
December 19° 34° -22° (2000) 66° (2001) 1.77" 6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 60° 80° 45° (1967) 95° (1953) 0.11" NA
Sep 2 60° 80° 47° (1967) 96° (1953) 0.1" NA
Sep 3 59° 80° 48° (1952) 93° (1960) 0.1" NA
Sep 4 59° 80° 42° (1974) 92° (1960) 0.1" NA
Sep 5 59° 79° 42° (1974) 93° (1960) 0.1" NA
Sep 6 58° 79° 42° (1988) 93° (1985) 0.1" NA
Sep 7 58° 79° 42° (1988) 94° (1985) 0.1" NA
Sep 8 58° 79° 47° (1988) 96° (1985) 0.1" NA
Sep 9 57° 78° 49° (1948) 95° (1985) 0.1" NA
Sep 10 57° 78° 45° (1967) 95° (1983) 0.09" NA
Sep 11 56° 78° 43° (1999) 91° (1978) 0.09" NA
Sep 12 56° 77° 39° (1955) 92° (1952) 0.1" NA
Sep 13 55° 77° 39° (1964) 91° (1991) 0.09" NA
Sep 14 55° 76° 40° (1975) 90° (1991) 0.1" NA
Sep 15 55° 76° 40° (2000) 90° (1994) 0.09" NA
Sep 16 54° 76° 38° (2007) 89° (1994) 0.08" NA
Sep 17 54° 75° 42° (1984) 89° (1972) 0.09" NA
Sep 18 53° 75° 37° (1959) 91° (1988) 0.09" NA
Sep 19 53° 75° 39° (1991) 90° (1948) 0.09" NA
Sep 20 52° 74° 31° (1991) 88° (1978) 0.09" NA
Sep 21 52° 74° 30° (1991) 87° (1980) 0.09" NA
Sep 22 51° 73° 33° (1991) 87° (2007) 0.1" NA
Sep 23 51° 73° 33° (1995) 88° (1988) 0.09" NA
Sep 24 50° 72° 33° (1989) 88° (2007) 0.1" NA
Sep 25 50° 72° 33° (1989) 88° (1984) 0.09" NA
Sep 26 49° 72° 36° (1975) 84° (1956) 0.1" NA
Sep 27 49° 71° 32° (1991) 85° (1954) 0.09" NA
Sep 28 49° 71° 32° (1991) 90° (1953) 0.1" NA
Sep 29 48° 70° 35° (1949) 94° (1953) 0.08" NA
Sep 30 48° 70° 33° (1984) 88° (1952) 0.08" NA
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