Sioux Falls in April
6.5out of 10
Possible, with caveats
Mild: highs around 15°C. Frequent rain: about 10 rainy days.
15°CAvg high
3°CAvg low
10Rainy days (90 mm)
13:13 hDaylight
06:51Sunrise · 20:03 Sunset
Why this score
- Mild: highs around 15°C
- Frequent rain: about 10 rainy days
What to wear and pack
- Layers you can add or remove
- Rain jacket or compact umbrella
How reliable is the forecast?
Rainfall in April is fairly consistent from year to year (2.8 days). Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | -3°C | -12°C | 20 mm | 5 | – | – | 4.5 |
| February | 0°C | -10°C | 24 mm | 5 | – | – | 4.4 |
| March | 7°C | -4°C | 47 mm | 7 | – | – | 5.5 |
| April | 15°C | 3°C | 90 mm | 10 | – | – | 6.5 |
| May | 21°C | 10°C | 114 mm | 13 | – | – | 7.1 |
| June | 27°C | 16°C | 131 mm | 12 | – | – | 7.2 |
| July | 29°C | 18°C | 84 mm | 9 | – | – | 7.9 |
| August | 27°C | 16°C | 84 mm | 9 | – | – | 7.9 |
| September | 24°C | 12°C | 81 mm | 8 | – | – | 8.0 |
| October | 16°C | 4°C | 61 mm | 7 | – | – | 7.1 |
| November | 7°C | -3°C | 40 mm | 6 | – | – | 5.5 |
| December | -1°C | -9°C | 27 mm | 5 | – | – | 4.4 |
Frequently asked questions
How hot is Sioux Falls in April?
Daytime highs average 15°C and nights about 3°C.
When is the best time to visit Sioux Falls?
The best months are September, July, August.