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
Mar 1 21° 42° -18° (1962) 66° (1983) 0.05" NA
Mar 2 21° 42° -1° (1962) 76° (1992) 0.06" NA
Mar 3 22° 43° 1° (1978) 79° (1983) 0.06" NA
Mar 4 22° 43° -13° (1978) 75° (1983) 0.06" NA
Mar 5 22° 44° -15° (1960) 69° (1956) 0.06" NA
Mar 6 23° 44° -7° (1960) 69° (1974) 0.06" NA
Mar 7 23° 45° -5° (1996) 72° (2000) 0.06" NA
Mar 8 24° 45° -5° (1995) 77° (2000) 0.06" NA
Mar 9 24° 45° -3° (1995) 73° (1986) 0.07" NA
Mar 10 24° 46° 1° (1998) 72° (1967) 0.07" NA
Mar 11 25° 46° 0° (1998) 81° (1972) 0.07" NA
Mar 12 25° 47° -10° (1998) 70° (1957) 0.07" NA
Mar 13 26° 47° -9° (1998) 76° (1990) 0.07" NA
Mar 14 26° 48° 3° (1993) 75° (1977) 0.07" NA
Mar 15 26° 48° 9° (1979) 75° (2002) 0.07" NA
Mar 16 27° 49° 13° (1956) 77° (2003) 0.08" NA
Mar 17 27° 49° 9° (1993) 76° (2003) 0.08" NA
Mar 18 27° 49° 5° (1965) 74° (2003) 0.08" NA
Mar 19 28° 50° 4° (1965) 75° (1976) 0.08" NA
Mar 20 28° 50° 12° (1965) 71° (1972) 0.08" NA
Mar 21 28° 51° 7° (1960) 71° (1994) 0.08" NA
Mar 22 29° 51° 8° (2002) 85° (1988) 0.08" NA
Mar 23 29° 52° 7° (1960) 79° (1994) 0.09" NA
Mar 24 29° 52° 3° (1965) 82° (1967) 0.09" NA
Mar 25 30° 52° 3° (1965) 76° (1956) 0.09" NA
Mar 26 30° 53° 2° (1964) 79° (1991) 0.09" NA
Mar 27 30° 53° 11° (1996) 85° (1991) 0.09" NA
Mar 28 31° 54° 6° (1970) 81° (1968) 0.09" NA
Mar 29 31° 54° 7° (1969) 87° (1986) 0.09" NA
Mar 30 31° 54° 11° (1975) 87° (1968) 0.09" NA
Mar 31 32° 55° 17° (1994) 82° (1968) 0.09" NA
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