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
Noticing a change, the average high-temperature during April moves from March's chilly 46.4°F (8°C) to a mild 58.5°F (14.7°C). In Denison, April's nights observe an average temperature dip to an icy 41.7°F (5.4°C).Humidity
April and October, with an average relative humidity of 68%, are the least humid months.Rainfall
In Denison, in April, it is raining for 13.7 days, with typically 2.36" (60mm) of accumulated precipitation. Throughout the year, there are 123 rainfall days, and 24.72" (628mm) of precipitation is accumulated.Snowfall
Months with snowfall in Denison are January through May, October through December. In April, in Denison, it is snowing for 1.4 days. Throughout April, 0.94" (24mm) of snow is accumulated. Throughout the year, in Denison, there are 36.8 snowfall days, and 14.53" (369mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 23min.On the first day of April, sunrise is at 7:02 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 8:19 pm CDT.
Sunshine
In April, the average sunshine in Denison, Iowa, is 7.9h.UV index
In April, the average daily maximum UV index in Denison is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: In April, the maximum UV index of 4 transforms into these recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Denison in April?
What is the least humid month in Denison?
What is the average humidity in April in Denison?
How many days does it rain in April in Denison?
How much does it snow in Denison in April?
What is the average length of the day in April in Denison?
When are sunrise and sunset in April in Denison?
How long on average sun shines in April in Denison?
What is the UV index intensity in April in Denison?
Average temperature in April
Denison, IA
- Average high temperature in April: 58.5°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in April: 41.7°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14°F).
Average pressure in April
Denison, IA
- Average pressure in April: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in April
Denison, IA
- Average wind speed in April: 11.1mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).
Average humidity in April
Denison, IA
- Average humidity in April: 68%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are April and October (68%).
Average rainfall in April
Denison, IA
- Average rainfall in April: 2.36"
The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in April
Denison, IA
- Average rainfall days in April: 13.7 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is February (3 days).
Average snowfall in April
Denison, IA
- Average snowfall in April: 0.94"
The month with the highest snowfall is February (3.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Denison, IA
- Average snowfall days in April: 1.4 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Denison, IA
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 7h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in April
Denison, IA
- Average sunshine days in April: 13.3 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is June (11.9 days).
Average UV index in April
Denison, IA
- Average UV index in April: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in April
Denison, IA
- Average cloud cover in April: 46
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in April
Denison, IA
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Denison, Iowa, USA
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