Dean, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 14° 33° -25° (1974) 70° (1989) 0.87" 5.8"
February 18° 38° -24° (1996) 72° (1972) 1.2" 5.8"
March 28° 50° -16° (1962) 88° (1986) 2.12" 2.9"
April 39° 63° 12° (1975) 89° (1989) 3.7" 1.3"
May 50° 72° 27° (1976) 96° (1966) 4.96" 0"
June 61° 81° 40° (1966) 104° (1988) 4.76" 0"
July 65° 86° 45° (1967) 106° (1983) 5.2" 0"
August 63° 84° 40° (1950) 107° (1984) 4.24" 0"
September 54° 75° 29° (1949) 100° (1984) 3.81" 0"
October 42° 63° 17° (1952) 93° (1963) 2.92" 0.1"
November 31° 50° -11° (1964) 79° (1999) 2.4" 1.2"
December 19° 36° -23° (1989) 71° (1998) 1.34" 4.6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Feb 1 15° 34° -17° (1979) 61° (2009) 0.03" 0.3"
Feb 2 15° 34° -22° (1996) 64° (1992) 0.03" 0.2"
Feb 3 15° 34° -24° (1996) 67° (1992) 0.03" 0.3"
Feb 4 15° 34° -17° (1996) 55° (1964) 0.04" 0.2"
Feb 5 15° 35° -18° (1979) 59° (2005) 0.03" 0.3"
Feb 6 16° 35° -15° (1978) 57° (2005) 0.03" 0.3"
Feb 7 16° 35° -9° (1977) 63° (2009) 0.03" 0.2"
Feb 8 16° 35° -8° (1985) 64° (2009) 0.04" 0.3"
Feb 9 16° 35° -22° (1979) 59° (1996) 0.04" 0.3"
Feb 10 17° 36° -10° (1982) 60° (1976) 0.04" 0.2"
Feb 11 17° 36° -16° (1981) 67° (1999) 0.04" 0.3"
Feb 12 17° 36° -13° (1988) 69° (1990) 0.04" 0.2"
Feb 13 17° 37° -8° (1986) 62° (1990) 0.04" 0.2"
Feb 14 18° 37° -1° (1951) 70° (1954) 0.04" 0.3"
Feb 15 18° 37° -5° (1958) 67° (1954) 0.04" 0.2"
Feb 16 18° 38° -17° (1958) 62° (1999) 0.04" 0.2"
Feb 17 19° 38° -16° (1958) 65° (1981) 0.04" 0.2"
Feb 18 19° 38° -10° (1978) 66° (1981) 0.04" 0.2"
Feb 19 19° 39° -10° (1978) 65° (1983) 0.05" 0.1"
Feb 20 20° 39° 0° (1958) 65° (1981) 0.04" 0.2"
Feb 21 20° 40° -8° (2008) 68° (1981) 0.05" 0.2"
Feb 22 20° 40° -11° (1963) 68° (1982) 0.04" 0.1"
Feb 23 21° 40° -6° (1965) 66° (2000) 0.05" 0.1"
Feb 24 21° 41° -3° (2010) 66° (1996) 0.05" 0.2"
Feb 25 22° 41° -5° (1967) 68° (2002) 0.05" 0.1"
Feb 26 22° 42° -12° (1963) 66° (2000) 0.05" 0.2"
Feb 27 22° 42° -8° (1962) 71° (1976) 0.06" 0.1"
Feb 28 23° 43° -15° (1962) 72° (1972) 0.05" 0.1"
Feb 29 23° 43° -5° (1960) 72° (1972) 0.05" NA
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