Grand River, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 13° 31° -24° (1982) 65° (2003) 0.88" 6.5"
February 17° 36° -25° (1996) 74° (1972) 1.23" 5.1"
March 27° 49° -18° (1962) 87° (1986) 2.38" 3.5"
April 38° 61° 8° (1982) 89° (1987) 3.5" 0.9"
May 50° 71° 25° (1992) 93° (1967) 5.11" 0"
June 59° 80° 36° (1989) 105° (1988) 4.67" 0"
July 65° 84° 43° (1971) 105° (1980) 4.88" 0"
August 62° 83° 41° (1992) 104° (1988) 4.21" 0"
September 53° 76° 25° (1989) 97° (2000) 3.92" 0"
October 41° 63° 14° (1972) 91° (1963) 2.89" 0.4"
November 29° 48° -15° (1964) 79° (1999) 2.1" 1.7"
December 17° 34° -30° (1989) 67° (1984) 1.29" 7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 64° 84° 50° (1992) 100° (1980) 0.14" 0"
Aug 2 64° 84° 51° (1992) 99° (1988) 0.13" 0"
Aug 3 64° 84° 51° (1992) 99° (1983) 0.14" 0"
Aug 4 64° 84° 48° (1978) 96° (1983) 0.13" 0"
Aug 5 64° 84° 49° (1957) 98° (1983) 0.13" 0"
Aug 6 64° 84° 50° (1994) 95° (1984) 0.13" 0"
Aug 7 64° 84° 47° (1989) 100° (1988) 0.12" 0"
Aug 8 64° 84° 46° (1989) 100° (1988) 0.14" 0"
Aug 9 63° 84° 45° (1989) 98° (1980) 0.13" 0"
Aug 10 63° 84° 47° (1989) 98° (1983) 0.13" 0"
Aug 11 63° 84° 47° (1967) 96° (1988) 0.13" 0"
Aug 12 63° 84° 45° (1964) 96° (1957) 0.13" 0"
Aug 13 63° 84° 43° (1964) 97° (1980) 0.15" 0"
Aug 14 63° 83° 48° (1992) 102° (1988) 0.14" 0"
Aug 15 63° 83° 45° (1992) 104° (1988) 0.15" 0"
Aug 16 63° 83° 45° (1992) 103° (1983) 0.14" 0"
Aug 17 62° 83° 47° (1992) 103° (1988) 0.15" 0"
Aug 18 62° 83° 49° (1989) 101° (1983) 0.14" 0"
Aug 19 62° 83° 47° (1967) 101° (2003) 0.15" 0"
Aug 20 62° 83° 42° (1991) 95° (1983) 0.14" 0"
Aug 21 62° 83° 43° (1991) 98° (1983) 0.14" 0"
Aug 22 61° 83° 49° (1992) 94° (1983) 0.14" 0"
Aug 23 61° 83° 44° (1966) 94° (1962) 0.13" 0"
Aug 24 61° 82° 48° (1966) 96° (1983) 0.13" 0"
Aug 25 61° 82° 45° (1958) 99° (1983) 0.14" 0"
Aug 26 61° 82° 50° (1964) 101° (1983) 0.14" 0"
Aug 27 60° 82° 44° (1967) 98° (2003) 0.14" 0"
Aug 28 60° 82° 41° (1986) 99° (1984) 0.13" 0"
Aug 29 60° 81° 43° (1992) 100° (1984) 0.12" 0"
Aug 30 59° 81° 47° (2009) 94° (1983) 0.13" 0"
Aug 31 59° 81° 41° (1992) 94° (1995) 0.13" 0"
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