Defiance, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 28° -29° (1974) 66° (1981) 0.78" 7.1"
February 14° 34° -25° (1996) 71° (1999) 0.78" 6.9"
March 25° 47° -23° (1960) 89° (1986) 2.17" 6.4"
April 35° 61° 2° (1975) 93° (1989) 3.28" 1.2"
May 48° 72° 25° (1961) 100° (1967) 4.18" 0"
June 58° 81° 31° (1969) 102° (1988) 4.35" 0"
July 63° 84° 40° (1972) 106° (1955) 4.1" 0"
August 61° 82° 35° (1967) 105° (1955) 3.79" 0"
September 51° 75° 27° (1984) 106° (2000) 4.46" 0"
October 38° 62° 12° (1993) 94° (1953) 2.68" 0.5"
November 25° 45° -9° (1991) 80° (2006) 1.8" 2.4"
December 13° 32° -26° (1989) 67° (1975) 1.01" 7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Apr 1 30° 54° 16° (1975) 88° (1956) 0.09" NA
Apr 2 31° 55° 16° (1970) 89° (2003) 0.09" NA
Apr 3 31° 55° 2° (1975) 84° (2003) 0.1" NA
Apr 4 31° 56° 14° (2002) 78° (1988) 0.1" NA
Apr 5 31° 56° 15° (1968) 86° (1991) 0.1" NA
Apr 6 32° 57° 11° (1982) 88° (1972) 0.1" NA
Apr 7 32° 57° 15° (1982) 83° (1988) 0.1" NA
Apr 8 32° 58° 14° (2007) 85° (1988) 0.1" NA
Apr 9 33° 58° 14° (2007) 87° (1977) 0.1" NA
Apr 10 33° 58° 17° (1952) 85° (1977) 0.1" NA
Apr 11 34° 59° 21° (1973) 91° (1996) 0.11" NA
Apr 12 34° 59° 17° (1957) 84° (2006) 0.11" NA
Apr 13 34° 60° 15° (1950) 79° (1976) 0.11" NA
Apr 14 35° 60° 16° (1950) 90° (2006) 0.11" NA
Apr 15 35° 60° 19° (1962) 89° (2003) 0.11" NA
Apr 16 35° 61° 24° (1949) 86° (1964) 0.11" NA
Apr 17 36° 61° 21° (1997) 90° (2004) 0.11" NA
Apr 18 36° 62° 19° (1953) 92° (1994) 0.11" NA
Apr 19 37° 62° 20° (1988) 90° (1987) 0.11" NA
Apr 20 37° 62° 25° (1953) 87° (1961) 0.11" NA
Apr 21 37° 63° 21° (1966) 90° (1980) 0.12" NA
Apr 22 38° 63° 25° (1986) 92° (1980) 0.12" NA
Apr 23 38° 64° 24° (1956) 87° (1950) 0.12" NA
Apr 24 39° 64° 20° (1956) 91° (1989) 0.12" NA
Apr 25 39° 64° 26° (1968) 90° (1981) 0.12" NA
Apr 26 40° 65° 27° (1950) 93° (1989) 0.12" NA
Apr 27 40° 65° 26° (1950) 91° (1989) 0.12" NA
Apr 28 40° 65° 25° (1965) 90° (1970) 0.12" NA
Apr 29 41° 66° 27° (1958) 89° (1987) 0.12" NA
Apr 30 41° 66° 28° (2005) 90° (1965) 0.12" NA
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