Sioux Falls, SD weather in April
Expect cool weather with frequent rain and some snow in Sioux Falls in April, with highs near 59°F and lows near 36°F. Rain or snow falls on about 10 days. Snowfall averages about 5.1 in. Good for outdoor plans.
- Normal high
- 59°F
- Normal low
- 36°F
- Wet days
- 10
- 3.0 in total
- Snowfall
- 5.1 in
- snow on the ground 2 days
How April changes from start to finish
| April 1 | April 30 | |
|---|---|---|
| Normal high | 53°F | 65°F |
| Normal low | 31°F | 41°F |
| Chance of a wet day | 31% | 37% |
| Sunrise / sunset | 7:08 am / 7:53 pm | 6:20 am / 8:27 pm |
| Daylight | 12.8 h | 14.1 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).
A typical April day
- 6 am38°Fdew point 32°F
- 9 am46°Fdew point 35°F
- Noon53°Fdew point 35°F
- 3 pm56°Fdew point 35°F
- 6 pm54°Fdew point 34°F
- 9 pm46°Fdew point 35°F
NOAA hourly normals (local standard time) from Sioux Falls (3 mi away); average wind 12 mph; clear or few clouds in 47% of daytime hours, mostly cloudy or overcast in 43%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F9 of 30
- Hot dayshigh 90°F or more0 of 30
- Muggy daysdaily mean dew point 65°F or more0 of 30
- Wet daysat least 0.01 in of rain or melted snow10 of 30
- Notable rainat least 0.10 in6 of 30
- Freezing nightslow 32°F or below13 of 30
- Snow on the groundsnow depth 1 in or more2 of 30
Average days per April, counted from daily records for each year 1991-2020.
Rain and snow in April
Normal precipitation is 3.0 in; a dry April brings about 2.1 in and a wet one about 3.5 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more. Normal snowfall is 5.1 in, with about 1 day of an inch or more.
How April varies from year to year
- Warmest April, 1991-20202010: average high 64°F
- Coolest April2018: average high 48°F
- Wettest April2001: 7.0 in
- Driest April1996: 0.6 in
- Highest reading92°F (April 30, 2007)
- Lowest reading5°F (April 4, 2018)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
April compared with March and May
| March | April | May | |
|---|---|---|---|
| Normal high | 45°F | 59°F | 71°F |
| Normal low | 24°F | 36°F | 48°F |
| Wet days | 8 | 10 | 12 |
| Comfortable days | 3 | 9 | 15 |
| Daylight | 11.9 h | 13.4 h | 14.7 h |
Highs change by +14°F from March and +12°F into May.
Nearby alternatives in April
- Warmer: Omaha, NE163 mi · high 64°F · 11 wet days
How Sioux Falls ranks in April
- Normal high291st warmest of 378 cities; 1st of 4 in South Dakota
- Wet days232nd driest of 378
- Comfortable days221st most of 340
What to pack for Sioux Falls in April
- A warm jacket – lows near 36°F, highs near 59°F
- A rain jacket or umbrella – rain or snow on about 10 days
- Waterproof boots – about 5.1 in of snow in a typical year
Heating and cooling
April has 538 heating degree days and 5 cooling degree days (base 65°F), 7% of the year's total heating and cooling demand.
Questions
How cold is Sioux Falls in April?
The normal high is 59°F and the normal low is 36°F. From 1991 to 2020 the coldest April reading was 5°F (April 4, 2018).
Does it rain a lot in Sioux Falls in April?
About 10 days in April have at least 0.01 in of precipitation, and the normal total is 3.0 in. The wettest April in 1991-2020 was in 2001 (7.0 in); the driest was in 1996 (0.6 in).
Does it snow in Sioux Falls in April?
Yes. Normal snowfall in April is 5.1 in, and snow covers the ground on about 2 days.
Is April a good time to visit Sioux Falls?
April ranks 5th of 12 months on our comfort score for Sioux Falls (60 out of 100). It has about 9 comfortable days. The best month is May.
Where the numbers come from
- Temperature, rain, snowfall, snow depth, frost dates, humidity and wind by hour and cloud cover: Sioux Falls (USW00014944), 3.0 mi NNW of the city center, 1,430 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Joe Foss Field Airport (726510-14944), 3.3 mi NW of the city center, 1,419 ft (54 ft lower than the city). Hourly observations, 1991-2020.