Unionville, 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
May 1 45° 68° 29° (1950) 88° (1952) 0.14" 0"
May 2 45° 68° 31° (1961) 89° (1968) 0.15" 0"
May 3 46° 68° 29° (1976) 87° (1952) 0.15" 0"
May 4 46° 68° 27° (1976) 88° (1952) 0.15" 0"
May 5 46° 69° 30° (2005) 90° (1966) 0.15" 0"
May 6 47° 69° 32° (1989) 96° (1966) 0.15" 0"
May 7 47° 69° 30° (1989) 89° (1966) 0.16" 0"
May 8 47° 70° 31° (1984) 89° (1963) 0.15" 0"
May 9 48° 70° 31° (1966) 89° (1963) 0.15" 0"
May 10 48° 70° 30° (1966) 90° (1962) 0.15" 0"
May 11 48° 70° 33° (1951) 88° (1956) 0.16" 0"
May 12 49° 71° 36° (1968) 92° (1956) 0.16" 0"
May 13 49° 71° 34° (1997) 89° (1956) 0.17" 0"
May 14 49° 71° 37° (1980) 90° (1988) 0.16" 0"
May 15 50° 71° 33° (1959) 87° (1962) 0.17" 0"
May 16 50° 72° 34° (1956) 87° (1974) 0.16" 0"
May 17 50° 72° 39° (1966) 90° (1996) 0.16" 0"
May 18 51° 72° 37° (2002) 89° (1962) 0.16" 0"
May 19 51° 73° 38° (2002) 91° (1962) 0.16" 0"
May 20 51° 73° 35° (1954) 89° (1975) 0.17" 0"
May 21 52° 73° 36° (2002) 90° (1964) 0.16" 0"
May 22 52° 74° 34° (1963) 91° (1964) 0.16" 0"
May 23 52° 74° 36° (1963) 91° (1964) 0.17" 0"
May 24 53° 74° 37° (1979) 90° (1967) 0.16" 0"
May 25 53° 74° 37° (1979) 91° (1953) 0.17" 0"
May 26 54° 75° 36° (1961) 92° (1985) 0.16" 0"
May 27 54° 75° 38° (1992) 90° (1980) 0.16" 0"
May 28 54° 75° 40° (1992) 89° (1980) 0.17" 0"
May 29 55° 76° 38° (1952) 90° (1953) 0.17" 0"
May 30 55° 76° 42° (1966) 91° (1953) 0.17" 0"
May 31 55° 76° 42° (1972) 88° (1988) 0.18" 0"
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