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
Aug 1 62° 84° 51° (1990) 101° (1988) 0.12" NA
Aug 2 62° 84° 50° (1948) 101° (1987) 0.12" NA
Aug 3 62° 84° 44° (1950) 98° (1988) 0.12" NA
Aug 4 62° 84° 44° (1978) 98° (1988) 0.13" NA
Aug 5 62° 84° 47° (1978) 96° (1988) 0.13" NA
Aug 6 62° 84° 46° (1948) 95° (1968) 0.13" NA
Aug 7 61° 84° 46° (1975) 96° (1984) 0.13" NA
Aug 8 61° 84° 47° (1976) 98° (1983) 0.14" NA
Aug 9 61° 83° 47° (1972) 95° (1988) 0.14" NA
Aug 10 61° 83° 49° (1962) 102° (2001) 0.14" NA
Aug 11 61° 83° 44° (1967) 90° (1976) 0.14" NA
Aug 12 61° 83° 45° (1967) 96° (1988) 0.14" NA
Aug 13 61° 83° 46° (1967) 96° (1995) 0.14" NA
Aug 14 60° 83° 44° (1964) 94° (1995) 0.14" NA
Aug 15 60° 83° 45° (1964) 99° (1988) 0.15" NA
Aug 16 60° 82° 45° (1976) 100° (1988) 0.15" NA
Aug 17 60° 82° 45° (1992) 101° (1988) 0.15" NA
Aug 18 60° 82° 43° (1963) 103° (1988) 0.15" NA
Aug 19 59° 82° 44° (1950) 100° (1983) 0.15" NA
Aug 20 59° 82° 36° (1950) 96° (1955) 0.15" NA
Aug 21 59° 81° 38° (1950) 96° (1955) 0.15" NA
Aug 22 59° 81° 45° (2004) 95° (1968) 0.15" NA
Aug 23 59° 81° 44° (1952) 96° (1948) 0.15" NA
Aug 24 58° 81° 45° (1984) 97° (1948) 0.15" NA
Aug 25 58° 81° 40° (1958) 94° (1948) 0.15" NA
Aug 26 58° 80° 44° (1964) 95° (1953) 0.15" NA
Aug 27 57° 80° 48° (1971) 98° (1973) 0.15" NA
Aug 28 57° 80° 40° (1986) 95° (1953) 0.15" NA
Aug 29 57° 79° 40° (1986) 100° (1984) 0.14" NA
Aug 30 56° 79° 45° (1986) 95° (1953) 0.14" NA
Aug 31 56° 79° 40° (1967) 98° (1953) 0.14" NA
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