Sioux City and Vermillion have remarkably similar climates.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| Sioux City | Metric | Vermillion |
|---|---|---|
| 216 days | Sunny daysclear or partly cloudy skies | 218 days |
| 33 in | Precipitationper year | 32 in |
| 105 days | Wet daysrain or snow per year | 105 days |
| 35 in | Snowfallper year | 35 in |
| 25 days | Hot daysabove 90 °F | 29 days |
| 155 days | Freezing nightsat or below 32 °F | 152 days |
| 69% | Humidityaverage relative | 69% |
| 48 °F | Average temperatureyear round | 49 °F |
Monthly temperatures
Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.
Daily highs
Daily lows
View monthly temperatures as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sioux City high | 30 | 34 | 47 | 61 | 72 | 82 | 85 | 83 | 77 | 63 | 47 | 34 |
| Vermillion high | 31 | 36 | 48 | 62 | 73 | 82 | 85 | 83 | 78 | 65 | 48 | 34 |
| Sioux City low | 10 | 14 | 25 | 36 | 48 | 59 | 63 | 61 | 51 | 38 | 25 | 14 |
| Vermillion low | 10 | 14 | 25 | 36 | 48 | 59 | 63 | 61 | 52 | 38 | 25 | 15 |
Monthly precipitation
Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.
View monthly precipitation as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sioux City | 0.9 | 1.1 | 2.2 | 4.0 | 5.0 | 4.8 | 3.0 | 3.9 | 3.0 | 2.4 | 1.6 | 1.2 |
| Vermillion | 0.8 | 1.0 | 2.1 | 3.8 | 4.7 | 4.9 | 3.0 | 3.6 | 2.7 | 2.5 | 1.5 | 1.1 |
Monthly sunny days
Days each month with clear or partly cloudy skies, so compare the same month between cities.
View monthly sunny days as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sioux City | 16 | 14 | 16 | 15 | 16 | 19 | 23 | 22 | 22 | 20 | 17 | 16 |
| Vermillion | 16 | 15 | 17 | 15 | 16 | 19 | 23 | 22 | 22 | 20 | 17 | 17 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Sioux City vs another city
- Sioux City vs South Sioux City, NE
- Sioux City vs Sergeant Bluff, IA
- Sioux City vs Le Mars, IA
- Sioux City vs Wayne, NE
- Sioux City vs Orange City, IA
- Sioux City vs New York, NY
- Sioux City vs Los Angeles, CA
- Sioux City vs Chicago, IL
- Sioux City vs Houston, TX
- Sioux City vs Phoenix, AZ
- Sioux City vs Philadelphia, PA
Vermillion vs another city
- Vermillion vs Yankton, SD
- Vermillion vs South Sioux City, NE
- Vermillion vs Wayne, NE
- Vermillion vs Le Mars, IA
- Vermillion vs Sergeant Bluff, IA
- Vermillion vs New York, NY
- Vermillion vs Los Angeles, CA
- Vermillion vs Chicago, IL
- Vermillion vs Houston, TX
- Vermillion vs Phoenix, AZ
- Vermillion vs Philadelphia, PA
About this data
Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.
Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).