Henderson, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 12° 31° -31° (1974) 66° (2003) 0.9" 5.8"
February 16° 36° -29° (1996) 75° (1972) 1.12" 7.3"
March 26° 49° -24° (1960) 89° (1986) 2.24" 4.9"
April 38° 62° 0° (1975) 93° (1996) 3.79" 1.1"
May 50° 72° 21° (1961) 100° (1967) 4.83" 0"
June 60° 81° 33° (1969) 101° (1956) 5.37" 0"
July 64° 85° 36° (1971) 105° (1974) 4.58" 0"
August 62° 83° 35° (1950) 102° (2003) 3.92" 0"
September 52° 76° 23° (1983) 101° (1953) 3.34" 0.1"
October 40° 64° 12° (1997) 93° (1963) 2.51" 0.8"
November 28° 48° -17° (1964) 83° (1999) 1.63" 1.6"
December 16° 33° -30° (1983) 67° (1998) 1.18" 7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 64° 84° 47° (1977) 97° (1964) 0.14" 0"
Aug 2 64° 84° 49° (1973) 99° (1964) 0.13" 0"
Aug 3 64° 84° 47° (1950) 96° (1960) 0.13" 0"
Aug 4 64° 84° 39° (1978) 102° (1954) 0.13" 0"
Aug 5 64° 84° 41° (1974) 96° (1989) 0.13" 0"
Aug 6 64° 84° 49° (1994) 95° (1968) 0.12" 0"
Aug 7 63° 84° 46° (1976) 97° (1988) 0.13" 0"
Aug 8 63° 84° 46° (1964) 94° (1963) 0.13" 0"
Aug 9 63° 84° 45° (1972) 94° (1983) 0.13" 0"
Aug 10 63° 84° 46° (1967) 95° (1983) 0.13" 0"
Aug 11 63° 84° 44° (1968) 95° (1988) 0.13" 0"
Aug 12 63° 83° 43° (1964) 96° (1957) 0.13" 0"
Aug 13 63° 83° 41° (1964) 95° (1995) 0.14" 0"
Aug 14 63° 83° 47° (1963) 96° (1988) 0.13" 0"
Aug 15 62° 83° 45° (1994) 98° (1988) 0.14" 0"
Aug 16 62° 83° 48° (1992) 99° (1983) 0.14" 0"
Aug 17 62° 83° 46° (1962) 101° (1988) 0.14" 0"
Aug 18 62° 83° 46° (1950) 98° (1983) 0.14" 0"
Aug 19 62° 83° 42° (1967) 99° (2003) 0.13" 0"
Aug 20 62° 83° 35° (1950) 96° (1955) 0.13" 0"
Aug 21 61° 83° 43° (1956) 98° (1955) 0.13" 0"
Aug 22 61° 82° 46° (1951) 95° (1948) 0.12" 0"
Aug 23 61° 82° 40° (1966) 96° (1975) 0.11" 0"
Aug 24 61° 82° 44° (1966) 96° (1955) 0.11" 0"
Aug 25 60° 82° 41° (1958) 98° (1955) 0.12" 0"
Aug 26 60° 82° 47° (1958) 102° (2003) 0.12" 0"
Aug 27 60° 82° 39° (1967) 101° (1955) 0.11" 0"
Aug 28 60° 82° 39° (1986) 96° (1955) 0.11" 0"
Aug 29 59° 81° 44° (1976) 96° (2000) 0.12" 0"
Aug 30 59° 81° 47° (1978) 95° (1953) 0.11" 0"
Aug 31 59° 81° 37° (1967) 96° (2000) 0.11" 0"
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