Sioux City, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 29° -35° (1912) 71° (2002) 0.59" 6.3"
February 15° 35° -31° (1899) 75° (1896) 0.62" 5.5"
March 26° 47° -22° (1960) 91° (1968) 2" 5.8"
April 37° 62° -2° (1975) 98° (1910) 2.75" 1.9"
May 49° 73° 23° (1909) 105° (1934) 3.75" 0"
June 59° 83° 38° (1945) 108° (1988) 3.61" 0"
July 63° 86° 41° (1895) 111° (1939) 3.3" 0"
August 61° 84° 37° (1950) 108° (1936) 2.9" 0"
September 50° 76° 24° (1945) 103° (2000) 2.42" 0"
October 38° 64° 5° (1925) 96° (1938) 1.99" 0.8"
November 25° 45° -9° (1991) 82° (2006) 1.4" 4.8"
December 13° 32° -28° (1917) 71° (1939) 0.66" 6.3"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Feb 1 11° 31° -26° (1917) 58° (1987) 0.02" NA
Feb 2 11° 31° -30° (1905) 65° (1992) 0.02" NA
Feb 3 12° 31° -20° (1905) 62° (1934) 0.02" NA
Feb 4 12° 32° -25° (1905) 66° (2005) 0.01" NA
Feb 5 12° 32° -22° (1907) 61° (2005) 0.01" NA
Feb 6 13° 32° -17° (1982) 57° (1957) 0.01" NA
Feb 7 13° 32° -24° (1905) 69° (1987) 0.01" NA
Feb 8 13° 33° -27° (1899) 62° (2000) 0.02" NA
Feb 9 13° 33° -29° (1899) 62° (1954) 0.02" NA
Feb 10 14° 33° -17° (1905) 68° (1999) 0.02" NA
Feb 11 14° 34° -31° (1899) 63° (1977) 0.02" NA
Feb 12 14° 34° -25° (1905) 63° (1990) 0.02" NA
Feb 13 15° 34° -24° (1905) 64° (1934) 0.02" NA
Feb 14 15° 35° -22° (1936) 62° (1934) 0.02" NA
Feb 15 15° 35° -20° (1936) 67° (1921) 0.02" NA
Feb 16 16° 35° -25° (1936) 66° (1981) 0.02" NA
Feb 17 16° 36° -19° (1978) 71° (1981) 0.02" NA
Feb 18 16° 36° -18° (1903) 69° (1930) 0.02" NA
Feb 19 17° 36° -15° (1936) 69° (1996) 0.02" NA
Feb 20 17° 37° -14° (1918) 65° (1981) 0.02" NA
Feb 21 17° 37° -15° (1918) 64° (1943) 0.03" NA
Feb 22 18° 37° -16° (1962) 68° (1982) 0.03" NA
Feb 23 18° 38° -15° (1993) 68° (2002) 0.03" NA
Feb 24 18° 38° -18° (1993) 67° (1981) 0.03" NA
Feb 25 19° 39° -7° (1960) 69° (1896) 0.03" NA
Feb 26 19° 39° -15° (1897) 75° (1896) 0.03" NA
Feb 27 20° 40° -15° (1897) 66° (1895) 0.04" NA
Feb 28 20° 40° -26° (1962) 71° (2000) 0.04" NA
Feb 29 20° 40° -15° (1960) 69° (1992) 0.04" NA
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