Helena, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 19° 36° -24° (1994) 75° (1943) 2.84" NA
February 23° 42° -25° (1951) 78° (1972) 2.73" NA
March 32° 54° -15° (1978) 89° (1910) 4.35" NA
April 42° 65° 21° (1994) 91° (1930) 4.38" NA
May 52° 75° 29° (1971) 98° (1911) 4.76" NA
June 62° 84° 36° (1917) 106° (1954) 4.07" NA
July 66° 88° 45° (1937) 112° (1936) 4.13" NA
August 63° 86° 41° (1964) 109° (1943) 3.55" NA
September 55° 80° 27° (1928) 106° (1953) 3.09" NA
October 44° 69° 17° (1952) 97° (1953) 3.34" NA
November 34° 54° -2° (1929) 89° (1923) 4.39" NA
December 24° 41° -19° (1989) 74° (1982) 3.65" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Nov 1 38° 61° 18° (1913) 83° (1933) 0.13" NA
Nov 2 38° 60° 21° (1911) 83° (2000) 0.14" NA
Nov 3 38° 60° 11° (1951) 80° (1940) 0.14" NA
Nov 4 37° 59° 19° (1937) 80° (1987) 0.14" NA
Nov 5 37° 59° 12° (1995) 82° (1909) 0.14" NA
Nov 6 37° 58° 20° (1927) 80° (1909) 0.14" NA
Nov 7 37° 58° 15° (1993) 80° (1915) 0.14" NA
Nov 8 36° 57° 11° (1951) 80° (1915) 0.15" NA
Nov 9 36° 57° 13° (1991) 80° (1975) 0.15" NA
Nov 10 36° 56° 17° (1973) 78° (1902) 0.15" NA
Nov 11 35° 56° 16° (1913) 80° (1911) 0.15" NA
Nov 12 35° 55° 15° (1976) 75° (1911) 0.15" NA
Nov 13 35° 55° 10° (1920) 80° (1955) 0.15" NA
Nov 14 34° 54° 12° (1916) 79° (1931) 0.15" NA
Nov 15 34° 54° 10° (1916) 79° (1971) 0.15" NA
Nov 16 34° 53° 13° (1916) 80° (1952) 0.15" NA
Nov 17 33° 53° 7° (1959) 79° (1958) 0.15" NA
Nov 18 33° 52° 12° (1959) 76° (1930) 0.15" NA
Nov 19 33° 52° 12° (1903) 80° (1930) 0.15" NA
Nov 20 32° 52° 9° (1914) 74° (1942) 0.15" NA
Nov 21 32° 51° 12° (1937) 74° (1913) 0.15" NA
Nov 22 32° 51° 7° (1964) 76° (1931) 0.15" NA
Nov 23 31° 50° 11° (1937) 89° (1923) 0.15" NA
Nov 24 31° 50° 6° (1950) 73° (1966) 0.15" NA
Nov 25 31° 49° 0° (1950) 73° (1908) 0.15" NA
Nov 26 30° 49° 7° (1977) 75° (1927) 0.15" NA
Nov 27 30° 48° 7° (1938) 73° (1990) 0.15" NA
Nov 28 30° 48° 9° (1955) 77° (1909) 0.14" NA
Nov 29 30° 47° 6° (1929) 75° (1927) 0.14" NA
Nov 30 29° 47° -2° (1929) 72° (1998) 0.14" NA
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