Climate averages 1991–2020
Sioux City weather
in March.
A cool, moderately wet month: the 8th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a cool month in Sioux City: daytime highs average 8.2°C and nights cool to about -2.7°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 55 mm of rain on roughly 7 days, which makes March a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 54 min on an average March day.
The nearest other city in this atlas is Sioux Falls (119 km away). In March its highs average 6.6°C, 1.7°C cooler than Sioux City, with 46 mm of rain.
Among the 498 cities listed in the United States, Sioux City ranks joint 404th of 498 for the warmest March highs and joint 113th of 498 for the driest March (rainfall, lowest first). The mean March high of those 498 cities is 14.9°C; Sioux City is 6.7°C cooler than that mean.
From March to April, average highs rise by 6.8°C to 15.0°C, and monthly rainfall rises from 55 mm to 101 mm.
The annual picture
March 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, selected | 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 | 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
March in nearby cities
- Sioux Falls in MarchUnited States · 119 kmHigh 6.6°C · Low -4.2°C · 46 mm rain
- Omaha in MarchUnited States · 143 kmHigh 9.9°C · Low -1.0°C · 60 mm rain
- Lincoln in MarchUnited States · 190 kmHigh 10.8°C · Low -0.4°C · 54 mm rain
- Des Moines in MarchUnited States · 251 kmHigh 8.9°C · Low -1.6°C · 67 mm rain
- Saint Joseph in MarchUnited States · 330 kmHigh 11.3°C · Low 0.9°C · 76 mm rain
- Rochester (Minnesota), United States in MarchUnited States · 360 kmHigh 5.1°C · Low -4.3°C · 60 mm rain
- Bloomington (Minnesota), United States in MarchUnited States · 360 kmHigh 5.0°C · Low -4.4°C · 54 mm rain
- Plymouth, United States in MarchUnited States · 366 kmHigh 4.6°C · Low -4.8°C · 51 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.