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
In Clarksville, stepping into April brings a temperature increase, moving up from March's frosty 43°F (6.1°C) to a moderate 56.1°F (13.4°C). Throughout April, the temperature falls to an average low of 39.7°F (4.3°C).Humidity
In Clarksville, Iowa, the average relative humidity in April is 73%.Rainfall
In Clarksville, during April, the rain falls for 14.7 days and regularly aggregates up to 3.11" (79mm) of precipitation. In Clarksville, during the entire year, the rain falls for 138.7 days and collects up to 28.78" (731mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Clarksville, in April, during 2.1 snowfall days, 1.89" (48mm) of snow is typically accumulated. In Clarksville, during the entire year, snow falls for 43.6 days and aggregates up to 19.25" (489mm) of snow.Daylight
In Clarksville, the average length of the day in April is 13h and 25min.On the first day of April, sunrise is at 6:51 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 8:10 pm CDT.
Sunshine
The average sunshine in April is 7.5h.UV index
In Clarksville, Iowa, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In April, the maximum UV index of 3 translates into these guidelines:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Stay sun-safe with clothing that is both closely woven and worn loosely. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature?
What is the average humidity in April?
How much does it rain in April?
How many days does it snow in April?
How many hours of daylight does Clarksville have in April?
What time are sunrise and sunset in April?
How long on average sun shines in April?
What is the UV index intensity in April?
Average temperature in April
Clarksville, IA
- Average high temperature in April: 56.1°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (23.9°F).
- Average low temperature in April: 39.7°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure in April
Clarksville, IA
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in April
Clarksville, IA
- Average wind speed in April: 10.7mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in April
Clarksville, IA
- Average humidity in April: 73%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (72%).
Average rainfall in April
Clarksville, IA
- Average rainfall in April: 3.11"
The wettest month (with the highest rainfall) is June (4.29").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in April
Clarksville, IA
- Average rainfall days in April: 14.7 days
The month with the highest number of rainy days is June (19.4 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in April
Clarksville, IA
- Average snowfall in April: 1.89"
The month with the highest snowfall is February (5.08").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Clarksville, IA
- Average snowfall days in April: 2.1 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Clarksville, IA
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in April: 7h and 3min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in April
Clarksville, IA
- Average sunshine days in April: 11.8 days
The months with the most sunshine days are October and November (17.8 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in April
Clarksville, IA
- Average UV index in April: 3
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Clarksville, IA
- Average cloud cover in April: 48
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in April
Clarksville, IA
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Clarksville, Iowa, USA
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