Sioux Falls weather in April: Sioux Falls, South Dakota: normal highs, lows, rain and records for April
Sioux Falls in April has a normal high of 59°F and a normal low of 36°F, a daily mean of 47°F, rising from 53°F on the 1st to 65°F by the 30th. Measurable precipitation falls on 10 days in a normal April, 3.00 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 15°C and low of 2°C, 76 mm of precipitation and 13 cm of snow in April.
- NOAA stationSioux Falls Foss Field
- Station IDUSW00014944
- Location43.59°N 96.73°W
- Elevation1,430 ft (436 m)
- From the center3 miles
- Population209,289
- Jan 27° 9°
- Feb 32° 13°
- Mar 45° 24°
- Apr 59° 36°
- May 71° 48°
- Jun 81° 59°
- Jul 85° 63°
- Aug 83° 61°
- Sep 76° 52°
- Oct 61° 38°
- Nov 45° 25°
- Dec 32° 13°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Sioux Falls in April?
The normal high is 59°F and the normal low 36°F, for a daily mean of 47.2°F. April is 12.5°F warmer than March and 11.9°F cooler than May. April is the 7th warmest month of the year in Sioux Falls and the 5th wettest. Across the month the normal high rises 12°F, from 53°F on April 1 to 65°F on April 30. From one year to the next April's mean temperature typically moves about 3.8°F either way (NOAA's standard deviation), so roughly two Aprils in three average between 43°F and 51°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 37%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| April 1 | 53°F | 31°F | 30% | 16% |
| April 8 | 56°F | 33°F | 32% | 18% |
| April 15 | 59°F | 35°F | 34% | 20% |
| April 22 | 62°F | 38°F | 36% | 21% |
| April 30 | 65°F | 41°F | 37% | 22% |
Every day of April: normal high, low and chance of precipitation (warmest afternoon April 30, coldest night April 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| April 1 | 53°F | 31°F | 30% | 16% | 12 h 40 min |
| April 2 | 54°F | 31°F | 30% | 16% | 12 h 40 min |
| April 3 | 54°F | 31°F | 30% | 16% | 12 h 50 min |
| April 4 | 54°F | 32°F | 31% | 17% | 12 h 50 min |
| April 5 | 55°F | 32°F | 31% | 17% | 12 h 50 min |
| April 6 | 55°F | 32°F | 31% | 17% | 13 h |
| April 7 | 56°F | 33°F | 32% | 18% | 13 h |
| April 8 | 56°F | 33°F | 32% | 18% | 13 h |
| April 9 | 57°F | 33°F | 32% | 18% | 13 h 10 min |
| April 10 | 57°F | 34°F | 33% | 19% | 13 h 10 min |
| April 11 | 57°F | 34°F | 33% | 19% | 13 h 10 min |
| April 12 | 58°F | 34°F | 34% | 19% | 13 h 10 min |
| April 13 | 58°F | 35°F | 34% | 20% | 13 h 20 min |
| April 14 | 59°F | 35°F | 34% | 20% | 13 h 20 min |
| April 15 | 59°F | 35°F | 34% | 20% | 13 h 20 min |
| April 16 | 59°F | 36°F | 35% | 20% | 13 h 30 min |
| April 17 | 60°F | 36°F | 35% | 20% | 13 h 30 min |
| April 18 | 60°F | 36°F | 35% | 21% | 13 h 30 min |
| April 19 | 60°F | 37°F | 35% | 21% | 13 h 30 min |
| April 20 | 61°F | 37°F | 36% | 21% | 13 h 40 min |
| April 21 | 61°F | 37°F | 36% | 21% | 13 h 40 min |
| April 22 | 62°F | 38°F | 36% | 21% | 13 h 40 min |
| April 23 | 62°F | 38°F | 36% | 21% | 13 h 50 min |
| April 24 | 62°F | 39°F | 36% | 22% | 13 h 50 min |
| April 25 | 63°F | 39°F | 36% | 22% | 13 h 50 min |
| April 26 | 63°F | 39°F | 37% | 22% | 13 h 50 min |
| April 27 | 64°F | 40°F | 37% | 22% | 14 h |
| April 28 | 64°F | 40°F | 37% | 22% | 14 h |
| April 29 | 64°F | 40°F | 37% | 22% | 14 h |
| April 30 | 65°F | 41°F | 37% | 22% | 14 h |
- Normal high
- 59°FApril average
- Normal low
- 36°FApril average
- Precipitation
- 3.00 inmonth total
- Days with precipitation
- 100.01 inch or more
- Snowfall
- 5.1 inmonth total
- Nights at 32°F or colder
- 13
- Daylight
- 12 h 40 min to 14 hApril 1 to April 30
- Days at 70°F or more
- 6
- Days at 80°F or more
- 1
- Sunshine
- 71%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014944; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Sioux Falls in April?
On a given April day the chance of 0.01 inch or more is 34% on average, highest around April 30 (37%). In all, 3.00 in falls on 10 days of a normal April, 1 of them with an inch or more.
In a normal April in Sioux Falls, 13 nights fall to freezing, 1 days stay below freezing all day and snowfall averages 5.1 inches.
Snow falls on 2 days in a normal April, and an inch or more covers the ground on 2 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014944.
How humid and windy is Sioux Falls in April?
At 3 p.m. the normal temperature is 62°F with 43% relative humidity and a dew point of 39°F; at 6 a.m. it is 43°F with 80% humidity. The wind averages 11.3 mph, most often from the north in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 43°F | 37°F | 80% | 8.5 mph | 46% |
| 9 a.m. | 53°F | 40°F | 61% | 12.7 mph | 56% |
| noon | 59°F | 40°F | 48% | 14.5 mph | 40% |
| 3 p.m. | 62°F | 39°F | 43% | 14.7 mph | 45% |
| 6 p.m. | 60°F | 39°F | 46% | 13.3 mph | 38% |
| 9 p.m. | 52°F | 40°F | 62% | 9.6 mph | 51% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014944. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for April in Sioux Falls?
The warmest April temperature on Sioux Falls's official record (since 1893) is 98°F, on April 28, 1910; the coldest is 4°F, on April 3, 1936. The wettest April brought 6.97 in (2001); the snowiest, 31.4 inches (2018).
The April mean against the 1991-2020 normal of 47.2°F: 2021 48.5°F (+1.3), 2022 43.7°F (−3.5), 2023 47.5°F (+0.3), 2024 51.1°F (+3.9), 2025 49.3°F (+2.1), 2026 47.6°F (+0.4). 5 of 6 ran warmer than normal.
| April | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 48.5°F | +1.3°F | 2.07 in |
| 2022 | 43.7°F | −3.5°F | 2.20 in |
| 2023 | 47.5°F | +0.3°F | 0.87 in |
| 2024 | 51.1°F | +3.9°F | 5.20 in |
| 2025 | 49.3°F | +2.1°F | 1.87 in |
| 2026 | 47.6°F | +0.4°F | 2.37 in |
Source: records: ACIS, NWS threaded record FSDthr; recent months: ACIS, station USW00014944. Records and recent months use complete months only.
How does April in Sioux Falls compare across South Dakota?
Across the 100 places PlainClimate covers in South Dakota, April normal highs run from 50°F in Custer to 62°F in Armour; Sioux Falls's is 59°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.