Colwell, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 25° -31° (1967) 63° (2002) 0.93" 8.1"
February 13° 32° -32° (1996) 65° (1981) 0.87" 7"
March 25° 44° -32° (1962) 85° (1986) 2.01" 7.7"
April 36° 60° 3° (1982) 94° (1980) 3.41" 2.4"
May 48° 72° 21° (2005) 94° (1967) 4.08" 0"
June 57° 81° 36° (1993) 102° (1988) 5.19" 0"
July 61° 84° 44° (2000) 102° (1988) 4.61" 0"
August 59° 82° 38° (2004) 104° (1988) 4.57" 0"
September 50° 75° 25° (1974) 99° (1955) 3.36" 0"
October 39° 62° 10° (1988) 95° (1963) 2.45" 0.1"
November 26° 43° -14° (1977) 78° (1999) 2.13" 3.4"
December 12° 29° -29° (2000) 63° (2001) 1.08" 8.8"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 42° 67° 28° (1966) 93° (1992) 0.12" NA
May 2 43° 67° 28° (1967) 93° (1992) 0.12" NA
May 3 43° 68° 21° (2005) 90° (1949) 0.12" NA
May 4 44° 68° 26° (2005) 89° (1952) 0.12" NA
May 5 44° 68° 29° (1968) 89° (1962) 0.12" NA
May 6 44° 69° 24° (1989) 87° (1962) 0.12" NA
May 7 45° 69° 27° (1989) 86° (1970) 0.12" NA
May 8 45° 70° 32° (1983) 87° (1963) 0.12" NA
May 9 46° 70° 28° (1966) 90° (1987) 0.12" NA
May 10 46° 70° 27° (1966) 88° (1987) 0.12" NA
May 11 46° 71° 32° (1966) 83° (1958) 0.12" NA
May 12 47° 71° 31° (1960) 86° (1956) 0.12" NA
May 13 47° 71° 27° (1997) 87° (1956) 0.13" NA
May 14 48° 72° 33° (1966) 91° (2007) 0.13" NA
May 15 48° 72° 30° (1997) 89° (1988) 0.13" NA
May 16 48° 72° 31° (1956) 88° (1962) 0.13" NA
May 17 49° 73° 34° (1973) 91° (1987) 0.13" NA
May 18 49° 73° 37° (1968) 93° (1967) 0.13" NA
May 19 49° 73° 36° (1981) 92° (1975) 0.13" NA
May 20 50° 74° 31° (1954) 93° (1948) 0.13" NA
May 21 50° 74° 33° (1997) 91° (1970) 0.14" NA
May 22 50° 74° 30° (1963) 90° (1956) 0.14" NA
May 23 51° 75° 31° (1963) 89° (1955) 0.14" NA
May 24 51° 75° 36° (1992) 86° (1977) 0.14" NA
May 25 51° 76° 38° (1992) 92° (1978) 0.14" NA
May 26 52° 76° 34° (1961) 94° (1967) 0.14" NA
May 27 52° 76° 35° (1971) 92° (1980) 0.15" NA
May 28 52° 76° 34° (1965) 93° (1998) 0.15" NA
May 29 53° 77° 33° (1965) 93° (2006) 0.15" NA
May 30 53° 77° 35° (1965) 91° (2002) 0.15" NA
May 31 53° 77° 36° (1972) 91° (1988) 0.16" NA
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