Grand River, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 11° 30° -24° (1982) 65° (2003) 0.8" 5.3"
February 16° 36° -25° (1996) 74° (1972) 1.02" 4.6"
March 26° 48° -18° (1962) 87° (1986) 2.33" 3.3"
April 37° 61° 8° (1982) 89° (1987) 3.34" 0.9"
May 50° 71° 25° (1992) 93° (1967) 4.47" 0"
June 59° 81° 36° (1989) 105° (1988) 4.33" 0"
July 65° 85° 43° (1971) 105° (1980) 4.61" 0"
August 63° 83° 41° (1992) 104° (1988) 3.75" 0"
September 53° 76° 25° (1989) 97° (2000) 4.28" 0"
October 42° 64° 14° (1972) 91° (1963) 2.93" 0.3"
November 29° 47° -15° (1964) 79° (1999) 2.28" 2"
December 17° 34° -30° (1989) 67° (1984) 1.13" 5.1"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jan 1 12° 30° -15° (1974) 50° (2000) 0.03" NA
Jan 2 12° 30° -13° (1979) 56° (1964) 0.02" NA
Jan 3 12° 30° -12° (1979) 58° (2004) 0.02" NA
Jan 4 11° 30° -17° (1959) 56° (1997) 0.02" NA
Jan 5 11° 30° -18° (1999) 55° (2003) 0.02" NA
Jan 6 11° 30° -18° (1971) 55° (1961) 0.02" NA
Jan 7 11° 29° -19° (1968) 52° (1965) 0.02" NA
Jan 8 11° 29° -14° (1970) 57° (2003) 0.02" NA
Jan 9 11° 29° -19° (1977) 65° (2003) 0.02" NA
Jan 10 11° 29° -24° (1982) 54° (2002) 0.02" NA
Jan 11 11° 29° -14° (1977) 53° (1980) 0.02" NA
Jan 12 11° 29° -21° (1974) 57° (1960) 0.02" NA
Jan 13 11° 29° -11° (1997) 58° (1987) 0.02" NA
Jan 14 11° 29° -16° (1957) 57° (1996) 0.02" NA
Jan 15 11° 29° -18° (1979) 50° (1976) 0.03" NA
Jan 16 11° 29° -21° (1977) 57° (1990) 0.03" NA
Jan 17 11° 29° -17° (1977) 62° (1990) 0.03" NA
Jan 18 11° 29° -13° (1994) 55° (1996) 0.03" NA
Jan 19 11° 30° -15° (1970) 50° (2006) 0.03" NA
Jan 20 11° 30° -20° (1985) 53° (1986) 0.03" NA
Jan 21 11° 30° -20° (1970) 58° (1964) 0.03" NA
Jan 22 11° 30° -7° (1963) 62° (1967) 0.03" NA
Jan 23 11° 30° -20° (1963) 59° (1976) 0.03" NA
Jan 24 11° 30° -14° (2003) 64° (1981) 0.03" NA
Jan 25 11° 30° -9° (1961) 59° (1981) 0.03" NA
Jan 26 11° 30° -11° (1991) 57° (2002) 0.03" NA
Jan 27 11° 31° -15° (1961) 65° (2002) 0.03" NA
Jan 28 11° 31° -17° (1972) 61° (2002) 0.03" NA
Jan 29 12° 31° -20° (1966) 59° (1988) 0.03" NA
Jan 30 12° 31° -22° (1965) 59° (1988) 0.03" NA
Jan 31 12° 32° -19° (1996) 54° (1961) 0.03" NA
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