Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
The rise of average high-temperatures is seen in April, with an increase from a frosty 49.1°F (9.5°C) in March to a comfortable 61.2°F (16.2°C). Bismarck in April anticipates an average nighttime temperature of 45°F (7.2°C).Humidity
In Bismarck, the average relative humidity in April is 76%.Rainfall
The month with the most rainfall is April, when the rain falls for 15.3 days and typically aggregates up to 3.23" (82mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows. During 0.9 snowfall days, in April, Bismarck aggregates 0.28" (7mm) of snow. In Bismarck, during the entire year, snow falls for 35.2 days and aggregates up to 8.82" (224mm) of snow.Daylight
In Bismarck, the average length of the day in April is 13h and 19min.On the first day of April, sunrise is at 6:32 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 7:45 pm CDT.
Sunshine
The average sunshine in April in Bismarck is 8.1h.UV index
The average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high UV index of 4 in April translates into the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in April?
What is the average humidity in April?
What is the wettest month?
How many days does it rain in April?
What is the last month it snows?
How many hours of daylight does Bismarck have in April?
When are sunrise and sunset in April?
How many hours of sunshine does Bismarck have in April?
How high is the UV index in April?
Average temperature in April
Bismarck, IL
- Average high temperature in April: 61.2°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in April: 45°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in April
Bismarck, IL
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Bismarck, IL
- Average wind speed in April: 10.2mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in April
Bismarck, IL
- Average humidity in April: 76%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in April
Bismarck, IL
- Average rainfall in April: 3.23"
The wettest month (with the highest rainfall) is April (3.23").
The driest months (with the least rainfall) are February and September (1.38").
Average rainfall days in April
Bismarck, IL
- Average rainfall days in April: 15.3 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (6.6 days).
Average snowfall in April
Bismarck, IL
- Average snowfall in April: 0.28"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Bismarck, IL
- Average snowfall days in April: 0.9 days
The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Bismarck, IL
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in April: 8h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in April
Bismarck, IL
- Average sunshine days in April: 11.6 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (9.5 days).
Average UV index in April
Bismarck, IL
- Average UV index in April: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Bismarck, IL
- Average cloud cover in April: 46
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are June, August and September (Cloud cover 32).
Average visibility in April
Bismarck, IL
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Bismarck, Illinois, USA
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