Sioux City Weather
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Records and Averages
| Month | Avg. High | Avg. Low | Avg. Precip | Rec. High | Rec. Low |
|---|---|---|---|---|---|
| January | -2.0° C | -13.0° C | 1.50 cm | 22.0° C(01/26/2002) | -37.0° C (01/12/1912) |
| February | 2.0° C | -9.0° C | 1.57 cm | 24.0° C(02/26/1896) | -35.0° C (02/11/1899) |
| March | 8.0° C | -3.0° C | 5.08 cm | 33.0° C(03/30/1968) | -30.0° C (03/05/1960) |
| April | 17.0° C | 3.0° C | 6.99 cm | 37.0° C(04/28/1910) | -19.0° C (04/03/1975) |
| May | 23.0° C | 9.0° C | 9.53 cm | 41.0° C(05/30/1934) | -5.0° C (05/01/1909) |
| June | 28.0° C | 15.0° C | 9.17 cm | 42.0° C(06/21/1988) | 3.0° C (06/04/1945) |
| July | 30.0° C | 17.0° C | 8.38 cm | 44.0° C(07/11/1939) | 5.0° C (07/09/1895) |
| August | 29.0° C | 16.0° C | 7.37 cm | 42.0° C(08/24/1936) | 3.0° C (08/20/1950) |
| September | 24.0° C | 10.0° C | 6.15 cm | 39.0° C(09/02/2000) | -4.0° C (09/29/1945) |
| October | 18.0° C | 3.0° C | 5.05 cm | 36.0° C(10/03/1938) | -15.0° C (10/29/1925) |
| November | 7.0° C | -4.0° C | 3.56 cm | 28.0° C(11/08/2006) | -23.0° C (11/07/1991) |
| December | 0.0° C | -11.0° C | 1.68 cm | 22.0° C(12/06/1939) | -33.0° C (12/29/1917) |
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