Denison, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 27° -40° (1912) 68° (2002) 0.8" 6.3"
February 14° 33° -37° (1905) 69° (1999) 0.75" 7.1"
March 24° 45° -23° (1960) 88° (1986) 2.16" 7"
April 36° 59° 5° (1936) 95° (1910) 3.03" 1.7"
May 49° 70° 2° (1931) 105° (1934) 4.14" 0"
June 59° 80° 30° (1903) 109° (1933) 4.26" 0"
July 64° 84° 39° (1911) 112° (1936) 3.87" 0"
August 62° 81° 34° (1915) 111° (1934) 3.29" 0"
September 52° 74° 21° (1918) 103° (1939) 3.3" 0"
October 40° 62° -1° (1925) 92° (1963) 2.3" 0.6"
November 25° 44° -16° (1937) 80° (2006) 1.58" 3"
December 13° 31° -26° (1989) 69° (1939) 1" 7.9"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Nov 1 32° 53° 11° (1911) 77° (1933) 0.06" NA
Nov 2 32° 52° 7° (1911) 75° (1914) 0.06" NA
Nov 3 31° 51° 5° (1991) 74° (1914) 0.06" NA
Nov 4 31° 51° -1° (1991) 75° (1975) 0.06" NA
Nov 5 30° 50° 6° (1951) 78° (1945) 0.06" NA
Nov 6 30° 49° 3° (1991) 77° (1915) 0.06" NA
Nov 7 29° 49° -8° (1991) 76° (2004) 0.06" NA
Nov 8 29° 48° 2° (1991) 80° (1931) 0.06" NA
Nov 9 28° 47° 13° (1945) 80° (2006) 0.06" NA
Nov 10 28° 47° 4° (1986) 72° (1949) 0.06" NA
Nov 11 27° 46° -5° (1986) 69° (1930) 0.06" NA
Nov 12 27° 46° -1° (1911) 70° (1930) 0.06" NA
Nov 13 26° 45° -10° (1940) 71° (1944) 0.05" NA
Nov 14 26° 44° -9° (1959) 78° (1999) 0.05" NA
Nov 15 26° 44° -6° (1940) 71° (1948) 0.05" NA
Nov 16 25° 43° -1° (1959) 73° (2001) 0.05" NA
Nov 17 25° 43° -6° (1959) 74° (2001) 0.05" NA
Nov 18 24° 42° 4° (1961) 74° (1908) 0.05" NA
Nov 19 24° 42° -1° (1914) 72° (1999) 0.05" NA
Nov 20 23° 41° -4° (1937) 73° (1933) 0.05" NA
Nov 21 23° 41° -16° (1937) 69° (2003) 0.05" NA
Nov 22 22° 40° -10° (1937) 66° (1966) 0.05" NA
Nov 23 22° 40° 0° (1950) 63° (2006) 0.05" NA
Nov 24 22° 39° 0° (1950) 66° (1902) 0.05" NA
Nov 25 21° 38° -2° (1977) 73° (1960) 0.05" NA
Nov 26 21° 38° -6° (1977) 64° (1909) 0.05" NA
Nov 27 20° 38° 0° (1976) 65° (1998) 0.04" NA
Nov 28 20° 37° -7° (1952) 69° (1998) 0.04" NA
Nov 29 19° 37° -4° (1976) 63° (2006) 0.04" NA
Nov 30 19° 36° -6° (1964) 67° (1998) 0.04" NA
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