Sioux City, Iowa Climate
United States
Pop. 82,821 Elev. 364 m / 1,194 ft
TZ: America/Chicago (UTC-5) ·
Sioux City is largely arid, with warm summers peaking at 85°F (29°C) in July and cold winters around 12°F (-11°C) in February. Humidity pushes the summer feels-like temperature to 96°F (36°C), while wind chill can drive winter lows to 4°F (-16°C). Precipitation occurs on roughly 32 days per year (26.7 in / 677 mm total), with snow on 5 days and 33 in (827 mm) of annual accumulation. The city averages 152 sunny days per year and around 25 thunderstorm days.
| Temperature | 85°F (30°C) high | 12°F (-11°C) low |
| Feels like | 96°F (35°C) high | 4°F (-16°C) low |
| Rain | 32 days | 26.7 in (677 mm) /yr |
| Snow | 5 days | 32.5 in (827 mm) /yr |
| Sky | 152 sunny | 25 stormy |
| Wind | 2.9 mph (1.3 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Apr, Aug, Sep, Oct
Sky & Air by Month
Cloud cover (%)
45
Jan 52
Feb 49
Mar 53
Apr 45
May 50
Jun 53
Jul 45
Aug 44
Sep 46
Oct 56
Nov 65
Dec Humidity (%)
60
Jan 63
Feb 58
Mar 53
Apr 54
May 66
Jun 77
Jul 76
Aug 68
Sep 61
Oct 66
Nov 74
Dec Weather Days by Month
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 7 mi Sioux Gateway Airport / Brigadier General Bud Day Field (SUX)
Ski resort 76 mi Great Bear Recreation Park
National park 13 mi Danish Alps State Recreation Area
Mountain peak
(20,733 ft) 332 mi Norris Hill
Hospital 0 mi Unity Point - St. Lukes Downtown
Hiking trail 7 mi River Loop
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 34°F 1°C | 13°F -10°C | 0.0 in 0 mm | 1.8 in45 mm | 15 |
| February | 33°F 0°C | 12°F -11°C | 0.0 in 1 mm | 5.0 in128 mm | 10 |
| March | 60°F 15°C | 32°F 0°C | 1.8 in 45 mm | 10.5 in267 mm | 16 |
| April | 65°F 19°C | 41°F 5°C | 2.4 in 60 mm | 0.0 in1 mm | 12 |
| May | 74°F 23°C | 51°F 10°C | 5.5 in 140 mm | — | 15 |
| June | 85°F 29°C | 64°F 18°C | 4.2 in 107 mm | — | 12 |
| July | 85°F 30°C | 68°F 20°C | 6.2 in 158 mm | — | 11 |
| August | 81°F 27°C | 64°F 18°C | 2.5 in 64 mm | — | 13 |
| September | 80°F 27°C | 58°F 14°C | 1.9 in 47 mm | — | 16 |
| October | 69°F 21°C | 49°F 10°C | 1.5 in 39 mm | — | 14 |
| November | 50°F 10°C | 33°F 1°C | 0.5 in 13 mm | 8.2 in207 mm | 10 |
| December | 38°F 3°C | 18°F -8°C | 0.2 in 5 mm | 7.1 in179 mm | 8 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 15 | 0 |
| February | 10 | 0 |
| March | 16 | 1 |
| April | 12 | 2 |
| May | 15 | 3 |
| June | 12 | 4 |
| July | 11 | 8 |
| August | 13 | 3 |
| September | 16 | 3 |
| October | 14 | 1 |
| November | 10 | 0 |
| December | 8 | 0 |