Bismarck
North Dakota, USA
Long-term weather forecast
Long-term weather forecast

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 in Bismarck, North Dakota, is a mild spring month, with average temperature fluctuating between 30.7°F (-0.7°C) and 57°F (13.9°C).

Temperature

In Bismarck, the average high-temperature significantly increases, from a wintry 40.5°F (4.7°C) in March, to a mild 57°F (13.9°C). The average low-temperature, in April, is 30.7°F (-0.7°C).

Humidity

In Bismarck, the average relative humidity is 61.8%.

Rainfall

In April, in Bismarck, North Dakota, the rain falls for 7.4 days. Throughout April, 1.3" (32mm) of precipitation is accumulated. In Bismarck, during the entire year, the rain falls for 97.7 days and collects up to 17.9" (453.4mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. In April, in Bismarck, it is snowing for 2.5 days. Throughout April, 4.2" (106.7mm) of snow is accumulated. Throughout the year, in Bismarck, there are 45.2 snowfall days, and 51.2" (1300.5mm) of snow is accumulated.

Daylight

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

Sunshine

In April, the average sunshine is 8.1h.

UV index

The average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 5 in April interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in April in Bismarck?

In April, the average high-temperature is 57°F (13.9°C), and the average low-temperature is 30.7°F (-0.7°C).

What is the average humidity in April in Bismarck?

The average relative humidity in April in Bismarck is 61.8%.

How much does it rain in Bismarck in April?

In Bismarck, North Dakota, during April, the rain falls for 7.4 days and regularly aggregates up to 1.3" (32mm) of precipitation.

How much does it snow in Bismarck in April?

In April, in Bismarck, it is snowing for 2.5 days. Throughout April, 4.2" (106.7mm) of snow is accumulated.

What is the average length of the day in April in Bismarck?

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

How long on average sun shines in April in Bismarck?

The average sunshine in April in Bismarck, North Dakota, is 8.1h.

How high is the UV index in April in Bismarck?

In Bismarck, the average daily maximum UV index in April is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in April - Bismarck, ND
  • Average high temperature in April: 57°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (23.4°F).

  • Average low temperature in April: 30.7°F

The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (2.2°F).

Average humidity in April - Bismarck, ND
  • Average humidity in April: 61.8%

The month with the highest relative humidity is December (74.5%).
The month with the lowest relative humidity is May (60.1%).

Average rainfall in April - Bismarck, ND
  • Average rainfall in April: 1.3"

The wettest month (with the highest rainfall) is June (3.2").
The driest month (with the lowest rainfall) is January (0.4").

Average rainfall days in April - Bismarck, ND
  • Average rainfall days in April: 7.4 days

The month with the highest number of rainy days is June (11.2 days).
The month with the lowest number of rainy days is October (6.6 days).

Average snowfall in April - Bismarck, ND
  • Average snowfall in April: 4.2"

The month with the highest snowfall is December (9.3").
Months with the lowest snowfall are June, July and August (0").

Average snowfall days in April - Bismarck, ND
  • Average snowfall days in April: 2.5 days

The month with the highest number of snowfall days is December (10 days).
Months with the lowest number of snowfall days are June, July and August (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 shortest days is December (Average daylight: 8.6h).

  • Average sunshine in April: 8.1h

The month with most sunshine is July (Average sunshine: 11.4h).
The month with least sunshine is December (Average sunshine: 4h).

Average UV index in April - Bismarck, ND
  • Average UV index in April: 5

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January, November and December (UV index 1).