Key West, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 11° 27° -30° (2009) 63° (1897) 1.17" 10"
February 16° 32° -27° (1996) 68° (1921) 1.5" 9"
March 27° 44° -20° (1962) 85° (1986) 2.41" 6.3"
April 38° 59° 10° (1982) 93° (1980) 3.66" 2"
May 48° 69° 21° (2005) 104° (1934) 4.19" 0.1"
June 58° 79° 36° (1972) 104° (1934) 4.4" 0"
July 62° 82° 44° (1984) 110° (1936) 4.31" 0"
August 60° 80° 40° (1986) 107° (1936) 4.4" 0"
September 52° 72° 24° (1899) 99° (1939) 3.46" 0"
October 40° 60° 10° (1925) 90° (1997) 2.66" 0"
November 29° 45° -17° (1977) 78° (1933) 2.35" 2.8"
December 15° 30° -25° (1983) 67° (1998) 1.84" 11.8"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 21° 36° -8° (1893) 59° (1970) 0.08" 0.4"
Dec 2 20° 35° -9° (1886) 62° (1982) 0.07" 0.3"
Dec 3 20° 35° -15° (1985) 64° (1970) 0.08" 0.3"
Dec 4 19° 34° -6° (1991) 67° (1998) 0.07" 0.4"
Dec 5 19° 34° -9° (2005) 64° (2001) 0.07" 0.3"
Dec 6 18° 33° -10° (1977) 56° (1951) 0.08" 0.4"
Dec 7 18° 33° -16° (1882) 61° (1916) 0.07" 0.4"
Dec 8 18° 33° -13° (1958) 63° (1946) 0.07" 0.3"
Dec 9 17° 32° -18° (1958) 59° (1946) 0.07" 0.4"
Dec 10 17° 32° -18° (1919) 57° (1911) 0.06" 0.4"
Dec 11 16° 31° -15° (1976) 62° (1949) 0.07" 0.4"
Dec 12 16° 31° -11° (2000) 58° (1913) 0.06" 0.4"
Dec 13 16° 31° -16° (1958) 55° (1920) 0.07" 0.4"
Dec 14 15° 30° -18° (1985) 55° (1975) 0.06" 0.5"
Dec 15 15° 30° -19° (1989) 53° (1939) 0.06" 0.4"
Dec 16 15° 30° -17° (1951) 58° (1939) 0.06" 0.4"
Dec 17 15° 29° -14° (1972) 54° (1939) 0.05" 0.4"
Dec 18 14° 29° -19° (1985) 60° (1877) 0.06" 0.4"
Dec 19 14° 29° -21° (1983) 57° (1877) 0.05" 0.4"
Dec 20 14° 29° -14° (1983) 64° (1877) 0.05" 0.4"
Dec 21 14° 28° -21° (1989) 61° (1877) 0.06" 0.3"
Dec 22 13° 28° -19° (1983) 56° (1877) 0.05" 0.5"
Dec 23 13° 28° -23° (1989) 58° (1888) 0.05" 0.3"
Dec 24 13° 28° -25° (1983) 67° (1889) 0.05" 0.4"
Dec 25 13° 28° -19° (1879) 58° (1936) 0.05" 0.4"
Dec 26 13° 27° -23° (1962) 56° (1936) 0.05" 0.4"
Dec 27 12° 27° -24° (1886) 56° (1946) 0.04" 0.4"
Dec 28 12° 27° -19° (1924) 63° (1984) 0.05" 0.4"
Dec 29 12° 27° -18° (1880) 52° (1984) 0.05" 0.3"
Dec 30 12° 27° -16° (1968) 56° (2004) 0.04" 0.4"
Dec 31 12° 27° -18° (1976) 58° (1965) 0.04" 0.3"
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