Climate normals · 1970–2000
Sioux City Climate
Sioux City is a city in United States (IA) with a population of about 82,821. Its average annual temperature is 9.2°C (49°F), with roughly 670 mm of rain per year.
9.2°C
Avg Temp
670
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
Sioux City Climate
Sioux City has an average annual temperature of 9.2°C (49°F) and receives about 670 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
9.2°C
Avg Temp
670
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -8° / 18° | 15 mm |
| February | -4° / 25° | 16 mm |
| March | 3° / 37° | 50 mm |
| April | 10° / 49° | 70 mm |
| May | 16° / 61° | 94 mm |
| June | 22° / 71° | 95 mm |
| July | 24° / 76° | 84 mm |
| August | 23° / 73° | 75 mm |
| September | 18° / 64° | 68 mm |
| October | 11° / 51° | 51 mm |
| November | 2° / 35° | 34 mm |
| December | -5° / 22° | 18 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Sioux City
The most comfortable months to visit Sioux City are typically June, August and September, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 31°C high). The coldest is January (near -13°C low). June is usually the wettest month.
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Frequently Asked Questions
The most comfortable months to visit Sioux City are typically June, August and September, when temperatures are mildest and rainfall is relatively low (1970–2000 climate normals).
Sioux City, United States has an average annual temperature of 9.2°C and about 670 mm of precipitation per year. The warmest month is July and the coldest is January.
In July, the hottest month, daily highs in Sioux City average about 31°C (87°F).
Monthly climate normals (1970–2000) sampled from WorldClim 2.1 at ~9 km resolution. Humidity derived from vapor pressure. City coordinates and population from GeoNames.