Union, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 25° -27° (1974) 66° (2002) 0.9" 7.6"
February 14° 31° -29° (1996) 66° (1981) 1.04" 7.1"
March 25° 43° -27° (1962) 87° (1986) 2.13" 4.1"
April 37° 58° 6° (1982) 98° (1980) 3.79" 1.6"
May 49° 70° 26° (2005) 94° (1967) 4.91" 0"
June 59° 79° 40° (1993) 104° (1988) 5.27" 0"
July 63° 83° 36° (2005) 103° (1989) 4.45" 0"
August 61° 81° 39° (1958) 108° (1988) 4.37" 0"
September 51° 74° 28° (1984) 98° (2000) 3.39" 0"
October 39° 61° 17° (1997) 94° (1997) 2.55" 0.2"
November 27° 44° -13° (1977) 81° (1968) 2.08" 2.3"
December 14° 29° -23° (1983) 66° (2001) 1.38" 9.3"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jun 1 54° 75° 40° (1993) 93° (1988) 0.18" 0"
Jun 2 55° 75° 40° (1993) 93° (1988) 0.18" 0"
Jun 3 55° 76° 41° (1969) 89° (1972) 0.17" 0"
Jun 4 55° 76° 41° (1998) 92° (1972) 0.18" 0"
Jun 5 56° 76° 43° (1990) 94° (1977) 0.19" 0"
Jun 6 56° 77° 43° (1983) 98° (1957) 0.18" 0"
Jun 7 56° 77° 42° (1960) 94° (1963) 0.18" 0"
Jun 8 57° 77° 44° (1978) 94° (1988) 0.19" 0"
Jun 9 57° 78° 44° (1978) 102° (1985) 0.18" 0"
Jun 10 57° 78° 44° (1966) 93° (1973) 0.18" 0"
Jun 11 58° 78° 43° (1972) 91° (1973) 0.18" 0"
Jun 12 58° 79° 46° (1963) 96° (2001) 0.18" 0"
Jun 13 58° 79° 42° (1969) 92° (1971) 0.18" 0"
Jun 14 59° 79° 45° (1962) 98° (1987) 0.18" 0"
Jun 15 59° 79° 45° (1969) 98° (1987) 0.18" 0"
Jun 16 59° 80° 44° (1961) 92° (1959) 0.18" 0"
Jun 17 60° 80° 42° (1960) 92° (2006) 0.18" 0"
Jun 18 60° 80° 46° (1965) 90° (1987) 0.17" 0"
Jun 19 60° 81° 46° (1970) 93° (1988) 0.18" 0"
Jun 20 60° 81° 44° (1961) 97° (1988) 0.17" 0"
Jun 21 61° 81° 44° (1961) 102° (1988) 0.17" 0"
Jun 22 61° 81° 45° (1972) 104° (1988) 0.18" 0"
Jun 23 61° 82° 44° (1958) 94° (1988) 0.16" 0"
Jun 24 61° 82° 48° (2004) 94° (1959) 0.16" 0"
Jun 25 61° 82° 44° (1961) 102° (1988) 0.17" 0"
Jun 26 62° 82° 47° (1961) 93° (1983) 0.17" 0"
Jun 27 62° 82° 45° (1968) 96° (1991) 0.17" 0"
Jun 28 62° 82° 49° (1968) 96° (1977) 0.17" 0"
Jun 29 62° 83° 49° (1959) 100° (1988) 0.17" 0"
Jun 30 62° 83° 49° (1959) 98° (1970) 0.16" 0"
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