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
With the arrival of April, the average high-temperature transitions from a chilly 47.1°F (8.4°C) in March to a moderate 59.5°F (15.3°C). During the month of April, Martinsburg anticipates a mean low-temperature of 42.4°F (5.8°C).Humidity
The average relative humidity in April in Martinsburg is 74%.Rainfall
In April, in Martinsburg, Iowa, the rain falls for 14.7 days. Throughout April, 2.87" (73mm) of precipitation is accumulated. Throughout the year, in Martinsburg, there are 137.9 rainfall days, and 27.76" (705mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Martinsburg, in April, during 0.8 snowfall days, 0.79" (20mm) of snow is typically accumulated. In Martinsburg, Iowa, during the entire year, snow falls for 32.8 days and aggregates up to 12.56" (319mm) of snow.Daylight
The average length of the day in April is 13h and 21min.On the first day of April in Martinsburg, sunrise is at 6:50 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 8:05 pm CDT.
Sunshine
In Martinsburg, Iowa, the average sunshine in April is 8h.UV index
The average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: An average UV index of 4 in April transforms into this advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April in Martinsburg?
What is the average humidity in April in Martinsburg?
How many days does it rain in April in Martinsburg?
How much does it snow in Martinsburg in April?
What is the average length of the day in April in Martinsburg?
What time are sunrise and sunset in April in Martinsburg?
How many hours of sunshine does Martinsburg have in April?
What is the UV index reading in April in Martinsburg?
Average temperature in April
Martinsburg, IA
- Average high temperature in April: 59.5°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in April: 42.4°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).
Average pressure in April
Martinsburg, IA
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in April
Martinsburg, IA
- Average wind speed in April: 10.6mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in April
Martinsburg, IA
- Average humidity in April: 74%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in April
Martinsburg, IA
- Average rainfall in April: 2.87"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days in April
Martinsburg, IA
- Average rainfall days in April: 14.7 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in April
Martinsburg, IA
- Average snowfall in April: 0.79"
The month with the highest snowfall is January (4.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Martinsburg, IA
- Average snowfall days in April: 0.8 days
The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Martinsburg, IA
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 8h and 0min
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
Martinsburg, IA
- Average sunshine days in April: 12.5 days
The month with the most sunshine days is December (19.1 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in April
Martinsburg, IA
- Average UV index in April: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in April
Martinsburg, IA
- Average cloud cover in April: 45
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 29).
Average visibility in April
Martinsburg, IA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Martinsburg, Iowa, USA
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