Sioux City, Iowa
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 10° 31° -35° (1912) 71° (2002) 0.62" 6.7"
February 15° 35° -31° (1899) 75° (1896) 0.7" 6.6"
March 26° 47° -22° (1960) 91° (1968) 2" 6.5"
April 37° 62° -2° (1975) 98° (1910) 2.95" 1.8"
May 49° 73° 23° (1909) 105° (1934) 3.74" 0.2"
June 59° 82° 38° (1945) 108° (1988) 3.89" 0"
July 63° 86° 41° (1895) 111° (1939) 3.44" 0"
August 61° 83° 37° (1950) 108° (1936) 3.23" 0"
September 51° 76° 24° (1945) 103° (2000) 2.96" 0"
October 38° 63° 5° (1925) 96° (1938) 2.13" 1"
November 25° 46° -9° (1991) 82° (2006) 1.31" 4.4"
December 13° 32° -28° (1917) 71° (1939) 0.8" 7.8"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 43° 70° 25° (2003) 91° (2006) 0.09" 0"
Oct 2 43° 70° 24° (2004) 94° (1997) 0.1" 0"
Oct 3 43° 69° 28° (1987) 96° (1938) 0.09" 0"
Oct 4 42° 69° 25° (1935) 92° (1938) 0.09" 0"
Oct 5 42° 68° 26° (1988) 93° (1963) 0.09" 0"
Oct 6 42° 68° 22° (2000) 91° (1997) 0.08" 0"
Oct 7 41° 67° 23° (2000) 89° (1980) 0.08" 0"
Oct 8 41° 67° 17° (2000) 93° (2010) 0.08" 0"
Oct 9 40° 67° 20° (2000) 87° (1980) 0.08" 0.1"
Oct 10 40° 66° 24° (2009) 92° (1928) 0.07" 0"
Oct 11 40° 66° 19° (1987) 90° (1956) 0.08" 0"
Oct 12 39° 65° 19° (1917) 92° (1975) 0.08" 0"
Oct 13 39° 65° 17° (1909) 92° (1975) 0.07" 0"
Oct 14 39° 64° 20° (1937) 89° (1958) 0.08" 0.1"
Oct 15 38° 64° 21° (1893) 90° (1958) 0.07" 0"
Oct 16 38° 64° 22° (1976) 88° (1910) 0.07" 0"
Oct 17 38° 63° 15° (1976) 89° (1961) 0.07" 0"
Oct 18 37° 63° 20° (1972) 87° (1950) 0.07" 0.1"
Oct 19 37° 62° 13° (1972) 88° (2003) 0.06" 0"
Oct 20 37° 62° 16° (1960) 88° (1947) 0.06" 0"
Oct 21 36° 61° 14° (1913) 88° (1947) 0.06" 0.1"
Oct 22 36° 61° 17° (1976) 85° (2003) 0.06" 0"
Oct 23 36° 60° 15° (1895) 83° (1899) 0.05" 0.1"
Oct 24 35° 60° 18° (1999) 82° (1989) 0.06" 0"
Oct 25 35° 59° 19° (1892) 84° (1927) 0.05" 0.1"
Oct 26 35° 59° 17° (1942) 84° (1955) 0.05" 0"
Oct 27 34° 58° 11° (1925) 86° (1999) 0.05" 0.1"
Oct 28 34° 58° 6° (1925) 84° (1937) 0.05" 0.1"
Oct 29 33° 57° 5° (1925) 82° (1937) 0.05" 0"
Oct 30 33° 57° 6° (1925) 85° (1950) 0.05" 0.1"
Oct 31 33° 56° 12° (1993) 81° (1944) 0.04" 0.1"
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