Bismarck weather in April: Bismarck, North Dakota: normal highs, lows, rain and records for April

Bismarck in April has a normal high of 56°F and a normal low of 30°F, a daily mean of 43°F, rising from 50°F on the 1st to 62°F by the 30th. Measurable precipitation falls on 8 days in a normal April, 1.34 inches in all. (NOAA 1991-2020 normals)

In metric: a normal high of 13°C and low of −1°C, 34 mm of precipitation and 12 cm of snow in April.

  • NOAA stationBismarck Municipal Airport
  • Station IDUSW00024011
  • Location46.77°N 100.76°W
  • Elevation1,658 ft (505 m)
  • From the center3 miles
  • Population77,772
  1. Jan 23° 2°
  2. Feb 28° 7°
  3. Mar 41° 19°
  4. Apr 56° 30°
  5. May 68° 42°
  6. Jun 78° 53°
  7. Jul 85° 58°
  8. Aug 84° 56°
  9. Sep 73° 46°
  10. Oct 57° 33°
  11. Nov 41° 19°
  12. Dec 28° 8°

Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.

How warm is Bismarck in April?

The normal high is 56°F and the normal low 30°F, for a daily mean of 43.2°F. April is 13.1°F warmer than March and 12.1°F cooler than May. April is the 7th warmest month of the year in Bismarck and the 7th wettest. Across the month the normal high rises 12°F, from 50°F on April 1 to 62°F on April 30. From one year to the next April's mean temperature typically moves about 3.7°F either way (NOAA's standard deviation), so roughly two Aprils in three average between 40°F and 47°F.

Bismarck in April, day by day: normal high and low

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 31%).

Normal high and low on five days of April, with the chance of precipitation
DayHighLowChance of 0.01 inChance of 0.10 in
April 150°F25°F25%9%
April 853°F28°F26%10%
April 1556°F30°F28%12%
April 2259°F33°F30%14%
April 3062°F36°F31%15%
Every day of April: normal high, low and chance of precipitation (warmest afternoon April 30, coldest night April 1)
Bismarck: NOAA 1991-2020 daily normals for each day of April
DayHighLowChance of 0.01 inChance of 0.10 inDaylight
April 150°F25°F25%9%12 h 50 min
April 250°F26°F25%10%12 h 50 min
April 351°F26°F25%10%12 h 50 min
April 451°F26°F25%10%13 h
April 552°F27°F25%10%13 h
April 652°F27°F25%10%13 h
April 752°F27°F25%10%13 h 10 min
April 853°F28°F26%10%13 h 10 min
April 953°F28°F26%11%13 h 10 min
April 1054°F29°F26%11%13 h 20 min
April 1154°F29°F27%11%13 h 20 min
April 1255°F29°F27%11%13 h 20 min
April 1355°F30°F27%12%13 h 30 min
April 1456°F30°F27%12%13 h 30 min
April 1556°F30°F28%12%13 h 30 min
April 1656°F31°F28%12%13 h 40 min
April 1757°F31°F28%13%13 h 40 min
April 1857°F31°F29%13%13 h 40 min
April 1958°F32°F29%13%13 h 40 min
April 2058°F32°F29%13%13 h 50 min
April 2158°F32°F29%13%13 h 50 min
April 2259°F33°F30%14%13 h 50 min
April 2359°F33°F30%14%14 h
April 2460°F33°F30%14%14 h
April 2560°F34°F30%14%14 h
April 2660°F34°F30%15%14 h 10 min
April 2761°F35°F31%15%14 h 10 min
April 2861°F35°F31%15%14 h 10 min
April 2962°F35°F31%15%14 h 20 min
April 3062°F36°F31%15%14 h 20 min
Normal high
56°FApril average
Normal low
30°FApril average
Precipitation
1.34 inmonth total
Days with precipitation
80.01 inch or more
Snowfall
4.6 inmonth total
Nights at 32°F or colder
18
Daylight
12 h 50 min to 14 h 20 minApril 1 to April 30
Days at 70°F or more
5
Days at 80°F or more
1
Sunshine
73%of clear-sky sunlight (NASA)

Source: NOAA NCEI 1991-2020 daily normals, station USW00024011; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.

Does it rain or snow in Bismarck in April?

On a given April day the chance of 0.01 inch or more is 28% on average, highest around April 30 (31%). In all, 1.34 in falls on 8 days of a normal April.

In a normal April in Bismarck, 18 nights fall to freezing, 2 days stay below freezing all day and snowfall averages 4.6 inches.

Snow falls on 3 days in a normal April, and an inch or more covers the ground on 3 days.

Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024011.

How humid and windy is Bismarck in April?

At 3 p.m. the normal temperature is 60°F with 38% relative humidity and a dew point of 34°F; at 6 a.m. it is 39°F with 79% humidity. The wind averages 10.7 mph, most often from the northwest in the afternoon. A dew point under 50°F feels dry.

A normal April day at the station, hour by hour (local standard time)
TimeTemperatureDew pointHumidityWindClear or few clouds
6 a.m.39°F33°F79%7.6 mph52%
9 a.m.49°F36°F60%10.8 mph58%
noon57°F35°F42%14.0 mph48%
3 p.m.60°F34°F38%14.6 mph48%
6 p.m.59°F34°F40%13.6 mph45%
9 p.m.49°F35°F58%9.3 mph60%

Source: NOAA NCEI 1991-2020 hourly normals, station USW00024011. 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 Bismarck?

The warmest April temperature on Bismarck's official record (since 1874) is 93°F, on April 21, 1980; the coldest is −12°F, on April 1, 1975. The wettest April brought 5.71 in (1878); the snowiest, 21.9 inches (2022).

The April mean against the 1991-2020 normal of 43.2°F: 2021 43.1°F (−0.1), 2022 37.0°F (−6.2), 2023 37.0°F (−6.2), 2024 45.5°F (+2.3), 2025 44.4°F (+1.2), 2026 41.5°F (−1.7). 2 of 6 ran warmer than normal.

Bismarck: April in recent years against the 1991-2020 normal
AprilMeanAgainst normalPrecip.
202143.1°F−0.1°F0.66 in
202237.0°F−6.2°F3.53 in
202337.0°F−6.2°F0.63 in
202445.5°F+2.3°F2.06 in
202544.4°F+1.2°F1.95 in
202641.5°F−1.7°F1.54 in

Source: records: ACIS, NWS threaded record BISthr; recent months: ACIS, station USW00024011. Records and recent months use complete months only.

How does April in Bismarck compare across North Dakota?

Across the 92 places PlainClimate covers in North Dakota, April normal highs run from 48°F in Rolla to 58°F in Beulah; Bismarck's is 56°F.

Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.

Other months and places