Rock Falls, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 22° -34° (1899) 62° (2002) 0.9" NA
February 10° 29° -35° (1899) 67° (1981) 0.77" NA
March 22° 41° -32° (1962) 84° (1986) 2.02" NA
April 34° 56° 5° (1982) 95° (1980) 3.35" NA
May 46° 70° 23° (1967) 104° (1934) 4.37" NA
June 56° 80° 31° (1928) 104° (1934) 5.14" NA
July 61° 83° 38° (1899) 107° (1936) 4.45" NA
August 58° 80° 30° (1915) 103° (1930) 4.67" NA
September 48° 72° 15° (1899) 103° (1922) 3.34" NA
October 37° 60° -4° (1925) 94° (1963) 2.47" NA
November 23° 42° -14° (1897) 79° (2006) 2.07" NA
December 10° 27° -26° (1983) 65° (1998) 1.03" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Feb 1 24° -26° (1996) 50° (1989) 0.03" NA
Feb 2 25° -31° (1996) 54° (1987) 0.03" NA
Feb 3 25° -32° (1996) 53° (1934) 0.02" NA
Feb 4 25° -26° (1996) 50° (1944) 0.02" NA
Feb 5 26° -28° (1936) 56° (2005) 0.02" NA
Feb 6 26° -22° (1900) 52° (1925) 0.02" NA
Feb 7 26° -30° (1899) 58° (1987) 0.02" NA
Feb 8 26° -33° (1899) 56° (1987) 0.02" NA
Feb 9 27° -35° (1899) 56° (1976) 0.02" NA
Feb 10 27° -35° (1899) 56° (1977) 0.02" NA
Feb 11 27° -32° (1899) 59° (1977) 0.02" NA
Feb 12 28° -27° (1899) 61° (1976) 0.02" NA
Feb 13 28° -27° (1905) 60° (1990) 0.02" NA
Feb 14 10° 28° -20° (1936) 58° (1934) 0.03" NA
Feb 15 10° 29° -20° (1900) 52° (1931) 0.03" NA
Feb 16 10° 29° -28° (1936) 63° (1981) 0.03" NA
Feb 17 11° 29° -19° (1958) 67° (1981) 0.03" NA
Feb 18 11° 30° -20° (1936) 65° (1981) 0.03" NA
Feb 19 12° 30° -23° (1959) 61° (1930) 0.03" NA
Feb 20 12° 31° -30° (1929) 60° (1930) 0.03" NA
Feb 21 12° 31° -22° (1936) 60° (1920) 0.03" NA
Feb 22 13° 31° -17° (1929) 58° (1930) 0.03" NA
Feb 23 13° 32° -14° (1910) 56° (1958) 0.03" NA
Feb 24 14° 32° -20° (1913) 58° (1918) 0.03" NA
Feb 25 14° 32° -14° (1900) 56° (1930) 0.04" NA
Feb 26 14° 33° -21° (1963) 62° (2000) 0.04" NA
Feb 27 15° 33° -12° (1899) 65° (1896) 0.04" NA
Feb 28 15° 34° -23° (1962) 53° (1985) 0.04" NA
Feb 29 15° 34° -8° (1960) 59° (2000) 0.04" NA
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