Belvidere, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 12° 29° -29° (1979) 62° (1967) 1.28" 8"
February 16° 34° -27° (1905) 73° (1932) 1.43" 7.8"
March 26° 45° -16° (1943) 84° (1986) 2.08" 3.7"
April 37° 59° 6° (1982) 94° (1926) 3.43" 0.9"
May 47° 70° 22° (1966) 107° (1934) 4.05" 0.1"
June 57° 80° 29° (1972) 107° (1934) 4.32" 0"
July 61° 84° 39° (1972) 109° (1936) 3.82" 0"
August 60° 82° 37° (1915) 107° (1918) 4.68" 0"
September 51° 75° 25° (1974) 103° (1922) 3.03" 0"
October 39° 62° 8° (1925) 90° (1971) 2.83" 0.1"
November 29° 47° -17° (1947) 80° (1933) 2.59" 1.7"
December 16° 33° -26° (1950) 65° (1962) 2.03" 8.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 57° 80° 38° (1967) 100° (1953) 0.11" 0"
Sep 2 57° 80° 36° (1946) 99° (1922) 0.11" 0"
Sep 3 56° 80° 41° (1974) 96° (1939) 0.11" 0"
Sep 4 56° 79° 40° (1997) 101° (1925) 0.1" 0"
Sep 5 56° 79° 39° (1962) 98° (1922) 0.11" 0"
Sep 6 55° 79° 34° (1962) 102° (1922) 0.09" 0"
Sep 7 55° 78° 36° (1986) 101° (1922) 0.1" 0"
Sep 8 55° 78° 36° (1986) 103° (1922) 0.1" 0"
Sep 9 54° 78° 36° (1986) 94° (1947) 0.1" 0"
Sep 10 54° 77° 36° (1917) 95° (1991) 0.1" 0"
Sep 11 53° 77° 34° (1917) 94° (1931) 0.09" 0"
Sep 12 53° 77° 36° (1993) 94° (1939) 0.09" 0"
Sep 13 52° 76° 33° (1964) 98° (1939) 0.1" 0"
Sep 14 52° 76° 33° (1923) 100° (1939) 0.09" 0"
Sep 15 51° 75° 36° (1923) 101° (1939) 0.1" 0"
Sep 16 51° 75° 31° (1916) 92° (1931) 0.09" 0"
Sep 17 50° 75° 33° (1937) 91° (1906) 0.1" 0"
Sep 18 50° 74° 30° (1959) 93° (1988) 0.09" 0"
Sep 19 49° 74° 34° (1929) 91° (1908) 0.1" 0"
Sep 20 49° 73° 27° (1956) 92° (1947) 0.11" 0"
Sep 21 48° 73° 31° (1962) 91° (1908) 0.1" 0"
Sep 22 48° 72° 28° (1974) 92° (1937) 0.11" 0"
Sep 23 47° 72° 25° (1974) 91° (1937) 0.1" 0"
Sep 24 47° 72° 27° (1976) 88° (1908) 0.1" 0"
Sep 25 47° 71° 25° (1942) 91° (1920) 0.11" 0"
Sep 26 46° 71° 29° (1926) 90° (1920) 0.1" 0"
Sep 27 46° 70° 29° (1991) 89° (1905) 0.11" 0"
Sep 28 45° 70° 25° (1942) 90° (1905) 0.1" 0"
Sep 29 45° 69° 28° (1949) 94° (1953) 0.11" 0"
Sep 30 44° 69° 26° (1984) 92° (1971) 0.1" 0"
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