Postville, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 23° -31° (1951) 56° (2002) 0.66" NA
February 11° 30° -34° (1996) 60° (1981) 0.49" NA
March 23° 42° -21° (1962) 82° (1986) 1.55" NA
April 35° 57° 7° (1979) 91° (1980) 3.49" NA
May 47° 69° 24° (1967) 92° (2006) 3.85" NA
June 58° 78° 37° (2003) 96° (1988) 4.65" NA
July 62° 82° 41° (2004) 102° (1995) 4.33" NA
August 59° 79° 36° (2004) 99° (1988) 4.61" NA
September 50° 72° 26° (1961) 96° (1955) 3.25" NA
October 39° 60° 15° (1988) 91° (1997) 2.24" NA
November 25° 42° -13° (1976) 75° (1949) 1.94" NA
December 12° 28° -28° (2000) 63° (1970) 0.82" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jun 1 53° 74° 37° (2003) 88° (1988) 0.14" NA
Jun 2 54° 75° 40° (1993) 91° (2002) 0.14" NA
Jun 3 54° 75° 40° (1969) 87° (1948) 0.15" NA
Jun 4 55° 75° 38° (1951) 88° (1948) 0.15" NA
Jun 5 55° 75° 39° (1996) 86° (1977) 0.15" NA
Jun 6 55° 76° 42° (1993) 90° (1952) 0.15" NA
Jun 7 55° 76° 44° (1960) 89° (1987) 0.15" NA
Jun 8 56° 76° 39° (1978) 93° (1985) 0.15" NA
Jun 9 56° 76° 37° (1994) 90° (1985) 0.15" NA
Jun 10 56° 77° 39° (1972) 89° (1956) 0.16" NA
Jun 11 57° 77° 42° (1972) 89° (1956) 0.16" NA
Jun 12 57° 77° 44° (1955) 92° (2001) 0.16" NA
Jun 13 57° 77° 41° (1969) 91° (1956) 0.16" NA
Jun 14 57° 78° 46° (1969) 93° (1987) 0.16" NA
Jun 15 58° 78° 44° (1961) 90° (1987) 0.16" NA
Jun 16 58° 78° 45° (2002) 89° (1994) 0.16" NA
Jun 17 58° 78° 41° (1960) 89° (1987) 0.16" NA
Jun 18 58° 79° 44° (1950) 91° (1994) 0.16" NA
Jun 19 59° 79° 42° (2004) 93° (1953) 0.16" NA
Jun 20 59° 79° 46° (1969) 93° (1988) 0.16" NA
Jun 21 59° 79° 42° (1992) 96° (1988) 0.16" NA
Jun 22 59° 79° 42° (2003) 96° (1988) 0.16" NA
Jun 23 59° 80° 41° (2003) 90° (2002) 0.16" NA
Jun 24 60° 80° 47° (1972) 94° (2005) 0.16" NA
Jun 25 60° 80° 43° (1957) 90° (2002) 0.16" NA
Jun 26 60° 80° 49° (1968) 92° (1980) 0.16" NA
Jun 27 60° 80° 47° (1950) 92° (1977) 0.15" NA
Jun 28 60° 80° 47° (1968) 90° (1952) 0.15" NA
Jun 29 60° 80° 46° (1950) 92° (1970) 0.15" NA
Jun 30 61° 81° 45° (1995) 94° (1963) 0.15" NA
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