Sioux City in April
6.7out of 10
Possible, with caveats
Mild: highs around 17°C. Frequent rain: about 11 rainy days.
17°CAvg high
4°CAvg low
11Rainy days (100 mm)
13:10 hDaylight
06:51Sunrise · 20:01 Sunset
Why this score
- Mild: highs around 17°C
- Frequent rain: about 11 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 (2.7 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 | -1°C | -10°C | 23 mm | 5 | – | – | 4.4 |
| February | 2°C | -8°C | 27 mm | 5 | – | – | 4.5 |
| March | 9°C | -2°C | 55 mm | 7 | – | – | 5.8 |
| April | 17°C | 4°C | 100 mm | 11 | – | – | 6.7 |
| May | 22°C | 11°C | 126 mm | 13 | – | – | 7.2 |
| June | 28°C | 17°C | 123 mm | 12 | – | – | 7.3 |
| July | 30°C | 19°C | 76 mm | 9 | – | – | 7.7 |
| August | 28°C | 17°C | 98 mm | 9 | – | – | 7.8 |
| September | 25°C | 13°C | 76 mm | 8 | – | – | 8.1 |
| October | 17°C | 6°C | 61 mm | 7 | – | – | 7.4 |
| November | 9°C | -2°C | 40 mm | 6 | – | – | 5.9 |
| December | 1°C | -8°C | 30 mm | 5 | – | – | 4.4 |
Frequently asked questions
How hot is Sioux City in April?
Daytime highs average 17°C and nights about 4°C.
When is the best time to visit Sioux City?
The best months are September, August, July.