Sterling/Rock Falls, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -11° -2° -32.8° (1999) 18.3° (2004) 1.57" 11.2"
February -9° -32.8° (1905) 21.7° (2000) 1.65" 5.8"
March -3° -25° (2002) 30.6° (1986) 2.47" 4.1"
April 16° -13.3° (1982) 33.9° (1986) 3.5" 0.7"
May 21° -4.4° (2005) 40.6° (1934) 4.41" 0"
June 15° 26° 1.1° (1945) 41.1° (1934) 4.9" 0"
July 17° 28° 6.1° (1904) 43.3° (1936) 4.14" 0"
August 16° 27° 2.8° (1934) 39.4° (1988) 4.5" 0"
September 11° 24° -5.6° (1942) 38.9° (1939) 3.55" 0"
October 17° -13.9° (1925) 33.9° (1963) 2.9" 0.1"
November -1° -22.2° (1977) 27.2° (1933) 2.69" 1.4"
December -9° -31.7° (1983) 20° (1998) 2.19" 6.9"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 17° 28° 9° (1925) 37° (1945) 0.15" 0"
Aug 2 17° 28° 9° (1927) 38° (1988) 0.13" 0"
Aug 3 17° 28° 6° (1912) 39° (1930) 0.14" 0"
Aug 4 17° 28° 7° (1912) 38° (1930) 0.13" 0"
Aug 5 17° 28° 8° (1910) 37° (1918) 0.13" 0"
Aug 6 17° 28° 8° (1910) 38° (1947) 0.14" 0"
Aug 7 16° 28° 8° (1903) 36° (1937) 0.13" 0"
Aug 8 16° 28° 7° (1904) 38° (1930) 0.14" 0"
Aug 9 16° 28° 7° (1927) 38° (1934) 0.14" 0"
Aug 10 16° 28° 9° (1982) 37° (1936) 0.14" 0"
Aug 11 16° 28° 7° (1982) 37° (1941) 0.14" 0"
Aug 12 16° 28° 6° (1903) 36° (1918) 0.15" 0"
Aug 13 16° 28° 8° (1931) 36° (1944) 0.15" 0"
Aug 14 16° 27° 6° (1904) 38° (1944) 0.16" 0"
Aug 15 16° 27° 8° (1929) 37° (1988) 0.16" 0"
Aug 16 16° 27° 8° (1992) 38° (1937) 0.15" 0"
Aug 17 16° 27° 9° (1924) 39° (1988) 0.17" 0"
Aug 18 16° 27° 7° (1963) 39° (1936) 0.16" 0"
Aug 19 16° 27° 8° (1932) 39° (1936) 0.16" 0"
Aug 20 16° 27° 4° (1950) 37° (1947) 0.15" 0"
Aug 21 16° 27° 5° (1950) 39° (1983) 0.14" 0"
Aug 22 16° 27° 6° (1923) 38° (1947) 0.15" 0"
Aug 23 16° 27° 7° (1920) 38° (1947) 0.14" 0"
Aug 24 15° 27° 4° (1942) 38° (1947) 0.15" 0"
Aug 25 15° 27° 4° (1934) 36° (1909) 0.14" 0"
Aug 26 15° 27° 5° (1934) 36° (2003) 0.14" 0"
Aug 27 15° 27° 7° (1915) 36° (1973) 0.15" 0"
Aug 28 15° 27° 4° (1915) 36° (1976) 0.15" 0"
Aug 29 15° 27° 3° (1934) 37° (1983) 0.14" 0"
Aug 30 15° 27° 4° (1915) 37° (1984) 0.14" 0"
Aug 31 14° 26° 4° (1915) 37° (1953) 0.14" 0"
Advertisements
Track Severe Weather on mobile