Climate averages 1991–2020
Sioux City weather
in June.
A warm, wet month: the 3rd warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Sioux City: daytime highs average 26.3°C and nights cool to about 16.5°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 123 mm of rain on roughly 12 days, which makes June a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 14 min on an average June day.
The nearest other city in this atlas is Sioux Falls (119 km away). In June its highs average 25.2°C, 1.1°C cooler than Sioux City, with 130 mm of rain.
Among the 498 cities listed in the United States, Sioux City ranks joint 306th of 498 for the warmest June highs and 442nd of 498 for the driest June (rainfall, lowest first). The mean June high of those 498 cities is 27.9°C; Sioux City is 1.6°C cooler than that mean.
From June to July, average highs rise by 2.4°C to 28.7°C, and monthly rainfall falls from 123 mm to 75 mm.
The annual picture
June in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Sioux City climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -1.9°C-11.2°C | -11.2°C | 23 | 4.7 | 9.49 h |
| February | 1.1°C-9.0°C | -9.0°C | 27 | 5.1 | 10.511 h |
| March | 8.2°C-2.7°C | -2.7°C | 55 | 7.0 | 11.912 h |
| April | 15.0°C3.9°C | 3.9°C | 101 | 10.6 | 13.313 h |
| May | 21.0°C10.6°C | 10.6°C | 126 | 12.6 | 14.615 h |
| June, selected | 26.3°C16.5°C | 16.5°C | 123 | 11.8 | 15.215 h |
| July | 28.7°C19.3°C | 19.3°C | 75 | 8.8 | 15.015 h |
| August | 27.5°C18.1°C | 18.1°C | 98 | 9.4 | 13.914 h |
| September | 23.8°C13.8°C | 13.8°C | 75 | 7.6 | 12.513 h |
| October | 16.1°C6.5°C | 6.5°C | 61 | 7.3 | 11.111 h |
| November | 7.6°C-1.3°C | -1.3°C | 40 | 5.4 | 9.810 h |
| December | 0.3°C-8.0°C | -8.0°C | 30 | 5.2 | 9.19 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- Sioux Falls in JuneUnited States · 119 kmHigh 25.2°C · Low 15.4°C · 130 mm rain
- Omaha in JuneUnited States · 143 kmHigh 27.3°C · Low 17.6°C · 131 mm rain
- Lincoln in JuneUnited States · 190 kmHigh 28.1°C · Low 18.0°C · 108 mm rain
- Des Moines in JuneUnited States · 251 kmHigh 26.5°C · Low 17.2°C · 126 mm rain
- Saint Joseph in JuneUnited States · 330 kmHigh 28.1°C · Low 18.8°C · 114 mm rain
- Rochester (Minnesota), United States in JuneUnited States · 360 kmHigh 24.4°C · Low 15.5°C · 131 mm rain
- Bloomington (Minnesota), United States in JuneUnited States · 360 kmHigh 25.0°C · Low 16.2°C · 112 mm rain
- Plymouth, United States in JuneUnited States · 366 kmHigh 24.6°C · Low 15.7°C · 111 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Sioux City) is explained once on the Sioux City year overview and on the Sources, method and limits page.