Preston, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 27° -30° (1951) 61° (1981) 1.14" 7.4"
February 14° 33° -34° (1996) 68° (2000) 1.26" 5.3"
March 25° 45° -21° (1962) 87° (1986) 2.28" 4.8"
April 36° 59° 5° (1982) 94° (1980) 3.31" 1.2"
May 47° 71° 23° (2005) 94° (2006) 3.73" 0"
June 57° 81° 35° (1972) 100° (1988) 4.58" 0"
July 62° 84° 41° (1972) 102° (1995) 3.34" 0"
August 60° 82° 36° (1950) 103° (1988) 4.38" 0"
September 51° 74° 26° (1949) 99° (1985) 3.62" 0"
October 39° 62° 14° (1988) 95° (1997) 2.51" 0"
November 27° 45° -9° (1977) 77° (1999) 2.58" 1.4"
December 16° 32° -26° (1950) 67° (2001) 1.62" 7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Apr 1 31° 52° 18° (1987) 82° (1986) 0.1" NA
Apr 2 31° 52° 13° (1993) 85° (2003) 0.1" NA
Apr 3 31° 53° 13° (1993) 77° (1956) 0.1" NA
Apr 4 32° 53° 12° (1975) 72° (1981) 0.1" NA
Apr 5 32° 54° 15° (1995) 80° (2005) 0.1" NA
Apr 6 33° 54° 15° (1979) 79° (1988) 0.1" NA
Apr 7 33° 55° 5° (1982) 86° (1991) 0.11" NA
Apr 8 33° 55° 15° (1972) 77° (1991) 0.11" NA
Apr 9 34° 56° 15° (1997) 80° (1991) 0.11" NA
Apr 10 34° 56° 16° (1997) 83° (1977) 0.11" NA
Apr 11 34° 57° 17° (1973) 83° (1977) 0.11" NA
Apr 12 35° 57° 21° (1976) 80° (1977) 0.11" NA
Apr 13 35° 58° 20° (1950) 77° (1960) 0.11" NA
Apr 14 35° 58° 18° (1997) 86° (2006) 0.11" NA
Apr 15 36° 58° 22° (1950) 87° (2003) 0.11" NA
Apr 16 36° 59° 15° (1949) 87° (2002) 0.11" NA
Apr 17 36° 59° 23° (1951) 86° (2002) 0.11" NA
Apr 18 37° 60° 20° (1983) 87° (1985) 0.11" NA
Apr 19 37° 60° 21° (1983) 88° (2002) 0.11" NA
Apr 20 37° 61° 22° (1988) 86° (1985) 0.12" NA
Apr 21 38° 61° 23° (1950) 89° (1987) 0.12" NA
Apr 22 38° 61° 22° (1986) 94° (1980) 0.12" NA
Apr 23 38° 62° 23° (1956) 85° (1960) 0.12" NA
Apr 24 39° 62° 20° (1956) 83° (1990) 0.12" NA
Apr 25 39° 63° 26° (1972) 86° (1990) 0.12" NA
Apr 26 39° 63° 29° (1972) 91° (1986) 0.12" NA
Apr 27 40° 63° 29° (1996) 88° (1986) 0.11" NA
Apr 28 40° 64° 25° (1950) 86° (1970) 0.11" NA
Apr 29 40° 64° 26° (1958) 90° (1970) 0.11" NA
Apr 30 41° 65° 29° (1956) 88° (2007) 0.11" NA
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