Walnut, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 28° -29° (1974) 66° (1981) 0.78" 7.1"
February 14° 34° -25° (1996) 71° (1999) 0.78" 6.9"
March 25° 47° -23° (1960) 89° (1986) 2.17" 6.4"
April 35° 61° 2° (1975) 93° (1989) 3.28" 1.2"
May 48° 72° 25° (1961) 100° (1967) 4.18" 0"
June 58° 81° 31° (1969) 102° (1988) 4.35" 0"
July 63° 84° 40° (1972) 106° (1955) 4.1" 0"
August 61° 82° 35° (1967) 105° (1955) 3.79" 0"
September 51° 75° 27° (1984) 106° (2000) 4.46" 0"
October 38° 62° 12° (1993) 94° (1953) 2.68" 0.5"
November 25° 45° -9° (1991) 80° (2006) 1.8" 2.4"
December 13° 32° -26° (1989) 67° (1975) 1.01" 7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Mar 1 19° 40° -14° (1962) 74° (1992) 0.04" NA
Mar 2 19° 40° 1° (1962) 72° (2006) 0.05" NA
Mar 3 20° 41° -5° (2002) 77° (1983) 0.05" NA
Mar 4 20° 41° -12° (1960) 74° (1983) 0.05" NA
Mar 5 21° 42° -23° (1960) 69° (1987) 0.05" NA
Mar 6 21° 42° -9° (1960) 73° (1987) 0.05" NA
Mar 7 22° 43° -7° (1996) 72° (1987) 0.06" NA
Mar 8 22° 43° -7° (1995) 75° (2000) 0.06" NA
Mar 9 22° 44° -4° (1984) 74° (1986) 0.06" NA
Mar 10 23° 44° -3° (1984) 73° (1967) 0.06" NA
Mar 11 23° 45° -5° (1998) 73° (1972) 0.06" NA
Mar 12 24° 45° -13° (1998) 73° (1990) 0.06" NA
Mar 13 24° 45° -10° (1975) 71° (1957) 0.07" NA
Mar 14 24° 46° -10° (1975) 78° (2007) 0.07" NA
Mar 15 25° 46° 4° (1949) 73° (1966) 0.07" NA
Mar 16 25° 47° 9° (1951) 78° (1966) 0.07" NA
Mar 17 25° 47° 5° (1962) 75° (2003) 0.07" NA
Mar 18 26° 48° 3° (1965) 75° (2003) 0.07" NA
Mar 19 26° 48° 2° (1965) 77° (1976) 0.08" NA
Mar 20 26° 49° 7° (1951) 69° (1972) 0.08" NA
Mar 21 27° 49° -1° (1951) 72° (1953) 0.08" NA
Mar 22 27° 50° 6° (2002) 80° (1988) 0.08" NA
Mar 23 27° 50° 7° (1965) 75° (1994) 0.08" NA
Mar 24 28° 51° 1° (1952) 84° (1967) 0.08" NA
Mar 25 28° 51° 6° (1955) 79° (1956) 0.08" NA
Mar 26 28° 52° 1° (1955) 81° (1989) 0.09" NA
Mar 27 29° 52° 9° (1955) 80° (1989) 0.09" NA
Mar 28 29° 53° 9° (1970) 84° (1986) 0.09" NA
Mar 29 29° 53° 4° (1969) 89° (1986) 0.09" NA
Mar 30 30° 53° 9° (1964) 87° (1968) 0.09" NA
Mar 31 30° 54° 12° (1987) 83° (1986) 0.09" NA
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