Sioux Falls weather in April

In April, Sioux Falls sees average daytime highs of 57°F and overnight lows near 36°F, with 3.6 in of precipitation across 10.3 wet days and about 13.2 hours of daylight. It is the 7th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 52°F in the first days to 62°F by the end. The sky is clear or mostly clear about 28% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 24 min at the start of April to 13 h 54 min by month's end. Set against the rest of the year, April is Sioux Falls's 11th-clearest and 1st-windiest month. For the whole year in context, see Sioux Falls's year-round climate.

Daytime high
57°
7th warmest
Overnight low
36°
6th coldest
Precipitation
3.6 in
10.3 wet days
Daylight
13 h 12 min
5:51 AM – 7:03 PM
Cloud cover
63%
11th clearest
Wind
11 mph
1st windiest
Solar energy
5.18 kWh/m²
Travel score
4.0
out of 10

Sioux Falls is city in and seat of Minnehaha County, and largest city in South Dakota, United States.

Density
872/km²
people per km²
Founded
1856

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 52°F in the first days to 62°F by the end.

A typical April day in Sioux Falls reaches about 57°F in the afternoon and slips back to 36°F overnight — a 21°F spread between the day's warmth and the night's chill. On most days the high lands between 41°F and 73°F. Set against its neighbours, April runs about 14°F warmer than March and about 12°F cooler than May.

20°40°60°80°151015202530
Avg high (°F)Avg low (°F)
15231
25231
35232
45332
55332
65333
75433
85433
95534
105534
115535
125635
135635
145636
155736
165737
175837
185837
195838
205938
215938
226039
236039
246039
256140
266140
276241
286241
296241
306342

How April really feels in Sioux Falls

Once humidity and wind are folded in, April averages 0 days that feel above 90°F and 22 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
22
wind chill below the day's low

The story in April is cold — wind chill drags the overnight "feels like" below the raw low.

Sioux Falls weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan26° / 10°0.84.74.49.10.0
Feb31° / 13°0.94.84.410.20.0
Mar43° / 24°1.86.63.711.61.0
Apr57° / 36°3.610.32.213.24.0
May69° / 49°4.512.5014.55.9
Jun78° / 59°5.112.5015.26.4
Jul82° / 64°3.38.9014.96.5
Aug80° / 61°3.38.8013.87.0
Sep73° / 52°3.27.9012.37.2
Oct59° / 39°2.470.710.85.0
Nov43° / 25°1.65.53.19.50.9
Dec30° / 15°1.054.88.80.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 14% of April, with mostly cloudy or overcast conditions the remaining 58%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14159
24258
34258
44258
54357
64357
74357
84357
94258
104258
114159
124159
134258
144258
154258
164258
174159
184258
194258
204258
214258
224258
234357
244357
254357
264357
274357
284357
294258
304258

Chance of precipitation in April

Any precipitationSnow

Sioux Falls gets around 3.6 in of rain and snow over 10.3 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 35% and peaks near 38% on the wettest days, and about 2 days bring snow. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)Snow chance (%)
1278
2278
3288
4299
5309
63110
73210
83310
93310
103410
113510
123610
133610
143710
153710
16379
17378
18378
19377
20376
21376
22375
23374
24374
25374
26373
27373
28372
29382
30382

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

Most of April feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, April lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
110000
210000
310000
410000
510000
69910
79910
89910
99910
109910
119910
129910
139910
149910
159910
169910
179820
189820
199820
209820
219820
229820
239820
249820
259820
269820
279721
289721
299631
309631

Wind in April

Winds average 11 mph in April, the windiest month of the year.

Across April, daily wind ranges from about 10 mph on the calmest days to 11 mph at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (mph)Feels
111light breeze
211light breeze
311light breeze
411light breeze
511light breeze
611light breeze
711light breeze
811light breeze
911light breeze
1011light breeze
1111light breeze
1211light breeze
1311light breeze
1411light breeze
1511light breeze
1611light breeze
1711light breeze
1811light breeze
1911light breeze
2010light breeze
2110light breeze
2210light breeze
2310light breeze
2410light breeze
2510light breeze
2610light breeze
2710light breeze
2810light breeze
2910light breeze
3010light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 24 min at the start of April to 13 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 90 minutes over April. Sunrise moves from 6:18 AM to 5:29 AM, and sunset from 6:45 PM to 7:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:186:45
212.56:166:46
312.56:146:47
412.66:136:49
512.66:116:50
612.76:096:51
712.76:076:52
812.86:056:53
912.96:046:55
1012.96:026:56
1112.96:006:57
1213.05:586:58
1313.05:566:59
1413.15:557:01
1513.15:537:02
1613.25:517:03
1713.25:507:04
1813.35:487:05
1913.35:467:07
2013.45:447:08
2113.45:437:09
2213.55:417:10
2313.55:407:11
2413.65:387:13
2513.65:367:14
2613.75:357:15
2713.75:337:16
2813.85:327:17
2913.85:307:19
3013.95:297:20

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.18 kWh/m².

For context, solar energy here swings from a low near 1.73 kWh/m² to a high of 6.67 kWh/m² in July across the year — April's 5.18 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.9Bright
54.9Bright
64.9Bright
74.9Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.1Bright
155.1Bright
165.1Bright
175.2Bright
185.2Bright
195.2Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in April

Hazard calendar for Sioux Falls

In seasonPeak

In April, Sioux Falls sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Sioux Falls's rainy season runs April–October, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is April a good time to visit Sioux Falls?

Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.0
Sightseeing
7th-best month of the year
0.3
Beach & pool
7th-best month of the year

April is a reasonable time to visit Sioux Falls for sightseeing.

What to pack for Sioux Falls in April

From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In April, Sioux Falls sees daytime highs around 57°F and nights near 36°F. Worth packing: a warm layer, rain gear and sun protection. About 10 days see rain.

a warm layerrain gearsun protection

UV index in Sioux Falls in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sioux Falls peaks around June 16 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 16UV 8Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr5High
May6High
Jun9Very high
Jul6High
Aug7High
Sep6High
Oct4Moderate
Nov2Moderate
Dec2Low
Location & terrain

Where is Sioux Falls?

Sioux Falls sits at 43.5°N, 96.7°W, 1,470 ft above sea level, in United States. The nearest listed city is Brookings, 53 mi away.

Topography around Sioux Falls

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Sioux Falls.

Within 2 miles, the terrain around Sioux Falls has only modest variations in elevation — a maximum elevation change of 246 ft around an average of 1,440 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 390 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 843 ft.

The land around Sioux Falls is covered by artificial surfaces (47%) and trees (37%) within 2 miles, cropland (51%) and grassland (25%) within 10 miles, and cropland (83%) within 50 miles.

2 miles
246 ft
10 miles
390 ft
50 miles
843 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Brookings 53 mi · Mitchell 66 mi · Sioux City 74 mi · Watertown 96 mi · Norfolk 111 mi · Willmar 137 mi · Mankato 142 mi · Fremont 146 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Sioux Falls (43.5437°, -96.728°, elevation 1,470 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).