Sterling/Rock Falls, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 10° 26° -27° (1999) 65° (2004) 1.6" 9"
February 15° 32° -27° (1905) 71° (2000) 1.43" 6.8"
March 27° 44° -13° (2002) 87° (1986) 2.55" 5"
April 37° 58° 8° (1982) 93° (1986) 3.61" 1.3"
May 48° 70° 24° (2005) 105° (1934) 4.32" 0"
June 58° 79° 34° (1945) 106° (1934) 4.88" 0"
July 62° 82° 43° (1904) 110° (1936) 3.45" 0"
August 60° 80° 37° (1934) 103° (1988) 4.47" 0"
September 51° 73° 22° (1942) 102° (1939) 3.31" 0"
October 39° 62° 7° (1925) 93° (1963) 2.71" 0.2"
November 28° 45° -8° (1977) 81° (1933) 2.82" 1.5"
December 17° 31° -25° (1983) 68° (1998) 2.13" 9"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Nov 1 34° 54° 19° (1930) 81° (1933) 0.09" NA
Nov 2 33° 53° 15° (1951) 78° (1938) 0.09" NA
Nov 3 33° 52° 9° (1951) 77° (1938) 0.09" NA
Nov 4 33° 52° 10° (1951) 74° (1987) 0.09" NA
Nov 5 32° 51° 5° (1951) 76° (1978) 0.09" NA
Nov 6 32° 51° 15° (1930) 74° (1924) 0.1" NA
Nov 7 32° 50° 7° (1991) 75° (1916) 0.1" NA
Nov 8 31° 49° 1° (1925) 79° (1915) 0.1" NA
Nov 9 31° 49° 7° (1925) 76° (1999) 0.1" NA
Nov 10 31° 48° 14° (1933) 77° (1999) 0.1" NA
Nov 11 30° 48° 9° (1950) 79° (1901) 0.1" NA
Nov 12 30° 47° 9° (1921) 75° (1911) 0.1" NA
Nov 13 29° 47° 4° (1986) 71° (1944) 0.1" NA
Nov 14 29° 46° 5° (1986) 75° (1971) 0.1" NA
Nov 15 29° 46° 5° (1959) 70° (1909) 0.1" NA
Nov 16 28° 45° 3° (1933) 75° (1931) 0.1" NA
Nov 17 28° 44° 0° (1959) 73° (1931) 0.1" NA
Nov 18 28° 44° 4° (1901) 72° (1953) 0.1" NA
Nov 19 27° 43° 10° (1951) 75° (1930) 0.09" NA
Nov 20 27° 43° 7° (1914) 70° (1930) 0.09" NA
Nov 21 26° 42° 3° (1926) 70° (1913) 0.09" NA
Nov 22 26° 42° 1° (1929) 73° (1913) 0.09" NA
Nov 23 26° 41° 4° (1950) 70° (1913) 0.09" NA
Nov 24 25° 41° -8° (1950) 66° (1931) 0.09" NA
Nov 25 25° 40° -3° (1950) 63° (2001) 0.09" NA
Nov 26 24° 40° -8° (1977) 66° (1927) 0.09" NA
Nov 27 24° 39° 1° (1930) 68° (1914) 0.09" NA
Nov 28 23° 39° -1° (1976) 65° (1909) 0.09" NA
Nov 29 23° 38° -7° (1976) 66° (1941) 0.09" NA
Nov 30 23° 38° -7° (1947) 67° (1962) 0.08" NA
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