Sterling/Rock Falls, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 12° 29° -27° (1999) 65° (2004) 1.57" 11.2"
February 16° 34° -27° (1905) 71° (2000) 1.65" 5.8"
March 27° 46° -13° (2002) 87° (1986) 2.47" 4.1"
April 38° 60° 8° (1982) 93° (1986) 3.5" 0.7"
May 49° 71° 24° (2005) 105° (1934) 4.41" 0"
June 59° 79° 34° (1945) 106° (1934) 4.9" 0"
July 63° 83° 43° (1904) 110° (1936) 4.14" 0"
August 61° 81° 37° (1934) 103° (1988) 4.5" 0"
September 51° 75° 22° (1942) 102° (1939) 3.55" 0"
October 40° 62° 7° (1925) 93° (1963) 2.9" 0.1"
November 29° 47° -8° (1977) 81° (1933) 2.69" 1.4"
December 17° 33° -25° (1983) 68° (1998) 2.19" 6.9"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Nov 1 35° 56° 19° (1930) 81° (1933) 0.1" 0"
Nov 2 35° 55° 15° (1951) 78° (1938) 0.1" 0"
Nov 3 35° 55° 9° (1951) 77° (1938) 0.09" 0.1"
Nov 4 34° 54° 10° (1951) 74° (1987) 0.09" 0"
Nov 5 34° 54° 5° (1951) 76° (1978) 0.09" 0"
Nov 6 34° 53° 15° (1930) 74° (1924) 0.1" 0"
Nov 7 33° 53° 7° (1991) 75° (1916) 0.09" 0"
Nov 8 33° 52° 1° (1925) 79° (1915) 0.08" 0.1"
Nov 9 33° 51° 7° (1925) 76° (1999) 0.09" 0"
Nov 10 32° 51° 14° (1933) 77° (1999) 0.08" 0"
Nov 11 32° 50° 9° (1950) 79° (1901) 0.09" 0"
Nov 12 31° 50° 9° (1921) 75° (1911) 0.08" 0"
Nov 13 31° 49° 4° (1986) 71° (1944) 0.09" 0.1"
Nov 14 30° 48° 5° (1986) 75° (1971) 0.09" 0"
Nov 15 30° 48° 5° (1959) 70° (1909) 0.1" 0"
Nov 16 29° 47° 3° (1933) 75° (1931) 0.08" 0"
Nov 17 29° 47° 0° (1959) 73° (1931) 0.09" 0.1"
Nov 18 28° 46° 4° (1901) 72° (1953) 0.09" 0"
Nov 19 28° 45° 10° (1951) 75° (1930) 0.09" 0.1"
Nov 20 27° 45° 7° (1914) 70° (1930) 0.09" 0.1"
Nov 21 27° 44° 3° (1926) 70° (1913) 0.09" 0"
Nov 22 26° 44° 1° (1929) 73° (1913) 0.08" 0.1"
Nov 23 26° 43° 4° (1950) 70° (1913) 0.09" 0.1"
Nov 24 25° 42° -8° (1950) 66° (1931) 0.09" 0.1"
Nov 25 25° 42° -3° (1950) 63° (2001) 0.09" 0.1"
Nov 26 24° 41° -8° (1977) 66° (1927) 0.09" 0"
Nov 27 24° 41° 1° (1930) 68° (1914) 0.09" 0.1"
Nov 28 23° 40° -1° (1976) 65° (1909) 0.09" 0.1"
Nov 29 23° 39° -7° (1976) 66° (1941) 0.09" 0.1"
Nov 30 22° 39° -7° (1947) 67° (1962) 0.09" 0.1"
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