April weather forecast and climate
Bismarck, ND

An across the park view of the historical building of the State Capitol in Bismarck, North Dakota
An across the park view of the historical building of the State Capitol in Bismarck, North Dakota
April is a cool spring month in Bismarck, North Dakota, with average temperature ranging between min 34.5°F (1.4°C) and max 51.8°F (11°C).

Temperature

In Bismarck, the average high-temperature increases, from a wintry 37.9°F (3.3°C) in March, to a cool 51.8°F (11°C). In Bismarck, the average low-temperature is 34.5°F (1.4°C).

Humidity

In April, the average relative humidity is 66%.

Rainfall

In April, in Bismarck, North Dakota, the rain falls for 12.4 days. Throughout April, 1.42" (36mm) of precipitation is accumulated. In Bismarck, during the entire year, the rain falls for 105.9 days and collects up to 15" (381mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Bismarck, North Dakota. In April, it is snowing for 5.4 days. Throughout April, 2.36" (60mm) of snow is accumulated. In Bismarck, during the entire year, snow falls for 73.7 days, and aggregates up to 23.11" (587mm) of snow.

Daylight

In April, the average length of the day in Bismarck is 13.6h.

Sunshine

In April, the average sunshine in Bismarck, North Dakota, is 7.6h.

UV index

In Bismarck, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 3 interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in April in Bismarck?

In Bismarck, in April, the average high-temperature is 51.8°F (11°C), and the average low-temperature is 34.5°F (1.4°C).

What is the average humidity in April in Bismarck?

The average relative humidity in April in Bismarck is 66%.

How many days does it rain in April in Bismarck?

In Bismarck, North Dakota, in April, during 12.4 rainfall days, 1.42" (36mm) of precipitation is typically accumulated.

How many days does it snow in April in Bismarck?

In Bismarck, North Dakota, in April, during 5.4 snowfall days, 2.36" (60mm) of snow is typically accumulated.

How many hours of daylight does Bismarck have in April?

The average length of the day in April in Bismarck, North Dakota, is 13.6h.

How long on average sun shines in April in Bismarck?

In Bismarck, the average sunshine in April is 7.6h.

What is the UV index reading in April in Bismarck?

In Bismarck, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to the UV radiation.
Average temperature in April - Bismarck, ND
  • Average high temperature in April: 11°C

The warmest month (with the highest average high temperature) is July (28.7°C).
The month with the lowest average high temperature is January (-6.2°C).

  • Average low temperature in April: 1.4°C

The month with the highest average low temperature is July (16.3°C).
The coldest month (with the lowest average low temperature) is January (-14.4°C).

Average pressure in April - Bismarck, ND
  • Average pressure in April: 1014.6mbar

The month with the highest atmospheric pressure is February (1021.7mbar).
The month with the lowest atmospheric pressure is June (1010.7mbar).

Average wind speed in April - Bismarck, ND
  • Average wind speed in April: 17.2km/h

The windiest month (with the highest average wind speed) is April (17.2km/h).
The calmest month (with the lowest average wind speed) is August (13.4km/h).

Average humidity in April - Bismarck, ND
  • Average humidity in April: 66%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (55%).

Average rainfall in April - Bismarck, ND
  • Average rainfall in April: 36mm

The wettest month (with the highest rainfall) is June (58mm).
The driest month (with the least rainfall) is January (15mm).

Average rainfall days in April - Bismarck, ND
  • Average rainfall days in April: 12.4 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (3.4 days).

Average snowfall in April - Bismarck, ND
  • Average snowfall in April: 60mm

The month with the highest snowfall is February (110mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in April - Bismarck, ND
  • Average snowfall days in April: 5.4 days

The month with the highest number of snowfall days is December (15.7 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in April / Average sunshine in April - Bismarck, ND
  • Average daylight in April: 13.6h

The month with the longest days is June (Average daylight: 15.8h).
The month with the shortest days is December (Average daylight: 8.6h).

  • Average sunshine in April: 7.6h

The month with the most sunshine is July (Average sunshine: 11.4h).
The month with the least sunshine is January (Average sunshine: 3.8h).

Average sunshine days in April - Bismarck, ND
  • Average sunshine days in April: 12.7 days

The month with the most sunshine days is September (19.9 days).
The month with the least sunshine days is March (12.3 days).

Average UV index in April - Bismarck, ND
  • Average UV index in April: 3

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in April - Bismarck, ND
  • Average cloud cover in April: 46

The month with the most cloud cover is February (Cloud cover 60).
Months with the least cloud cover are July and August (Cloud cover 21).

Average visibility in April - Bismarck, ND
  • Average visibility in April: 9km

Months with the highest visibility are May, June, July, August, September and October (10km).
Months with the lowest visibility are January, February, March and December (8km).