Climate averages 1991–2020
Sioux Falls weather
in April.
A cool, wet month: the 7th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cool month in Sioux Falls: daytime highs average 13.6°C and nights cool to about 2.6°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 91 mm of rain on roughly 10 days, which makes April a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 24 min on an average April day.
The nearest other city in this atlas is Sioux City (119 km away). In April its highs average 15.0°C, 1.4°C warmer than Sioux Falls, with 101 mm of rain.
Among the 498 cities listed in the United States, Sioux Falls ranks joint 421st of 498 for the warmest April highs and joint 282nd of 498 for the driest April (rainfall, lowest first). The mean April high of those 498 cities is 19.4°C; Sioux Falls is 5.8°C cooler than that mean.
From April to May, average highs rise by 6.3°C to 19.9°C, and monthly rainfall rises from 91 mm to 114 mm.
The annual picture
April 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 Falls climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -3.5°C-12.8°C | -12.8°C | 20 | 4.7 | 9.39 h |
| February | -0.5°C-10.4°C | -10.4°C | 24 | 4.9 | 10.510 h |
| March | 6.6°C-4.2°C | -4.2°C | 46 | 6.6 | 11.912 h |
| April, selected | 13.6°C2.6°C | 2.6°C | 91 | 10.3 | 13.413 h |
| May | 19.9°C9.5°C | 9.5°C | 114 | 12.5 | 14.715 h |
| June | 25.2°C15.4°C | 15.4°C | 130 | 12.5 | 15.415 h |
| July | 27.7°C18.2°C | 18.2°C | 84 | 8.9 | 15.115 h |
| August | 26.6°C17.1°C | 17.1°C | 85 | 8.8 | 14.014 h |
| September | 22.6°C12.8°C | 12.8°C | 80 | 7.9 | 12.613 h |
| October | 14.7°C5.3°C | 5.3°C | 61 | 7.0 | 11.111 h |
| November | 6.0°C-2.7°C | -2.7°C | 40 | 5.5 | 9.710 h |
| December | -1.3°C-9.5°C | -9.5°C | 27 | 5.0 | 9.09 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
April in nearby cities
- Sioux City in AprilUnited States · 119 kmHigh 15.0°C · Low 3.9°C · 101 mm rain
- Omaha in AprilUnited States · 262 kmHigh 16.3°C · Low 5.5°C · 104 mm rain
- Lincoln in AprilUnited States · 305 kmHigh 16.9°C · Low 5.8°C · 92 mm rain
- Plymouth, United States in AprilUnited States · 307 kmHigh 12.3°C · Low 2.3°C · 81 mm rain
- Bloomington (Minnesota), United States in AprilUnited States · 309 kmHigh 12.7°C · Low 2.9°C · 81 mm rain
- Minneapolis in AprilUnited States · 319 kmHigh 12.5°C · Low 2.4°C · 81 mm rain
- Brooklyn Park in AprilUnited States · 319 kmHigh 12.4°C · Low 2.2°C · 81 mm rain
- Saint Paul in AprilUnited States · 329 kmHigh 12.6°C · Low 2.6°C · 81 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 Falls) is explained once on the Sioux Falls year overview and on the Sources, method and limits page.