The highest day temperature in April 2026 was 84°F. The lowest night temperature was 16°F. The average values for day and night temperatures during April were 48.5°F и 32.4°F respectivly.

Most of the days in April are gloomy but you can also expect sunny days.

Precipitation total in April for Bismarck is 0.6 in.

The average wind speed in April is 10.9 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Bismarck in April is 6.8 hours.