South Sioux City, NE Weather & Climate Normals
What a normal year in South Sioux City actually looks like
On the 30-year record NOAA keeps for South Sioux City, NE, the comfort score comes out to 47/100, strongly seasonal: Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. Only 5 months a year land in the 55–75°F range this site treats as mild.
How much South Sioux City's weather actually swings
Average temperatures in South Sioux City run from 19°F in Jan up to 75°F in Jul, a 55.3°F seasonal swing, one of the widest gaps in this dataset.
South Sioux City, month by month
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 30°F | 9°F | 0.66in |
| Feb | 35°F | 13°F | 0.88in |
| Mar | 47°F | 24°F | 1.62in |
| Apr | 61°F | 35°F | 3.07in |
| May | 72°F | 47°F | 4.44in |
| Jun | 82°F | 58°F | 4.62in |
| Jul | 86°F | 63°F | 3.36in |
| Aug | 83°F | 61°F | 3.93in |
| Sep | 77°F | 51°F | 2.99in |
| Oct | 64°F | 37°F | 2.38in |
| Nov | 47°F | 24°F | 1.36in |
| Dec | 34°F | 14°F | 0.97in |
If you're timing a visit, May, Jun, Jul, Aug, and Sep are South Sioux City's mildest stretch; if you're moving there, you should plan around Jan's cold instead.
How wet South Sioux City actually gets
South Sioux City averages 30.28in of precipitation a year across roughly 0 days with measurable rain or snow; the nearest NOAA station does not record snowfall, so no snow figure is shown rather than guessed.
South Sioux City against the rest of the country
Out of 4876 cities scored here, South Sioux City comes in at 2710; within NE alone it ranks 3 of 32. Population is about 13,910.
Checking the actual forecast
These figures come from Sioux City Ang, IA US, the NOAA station 4.9 miles from South Sioux City, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why some cities show no snow or rain figure · What a 30-year climate normal actually is