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 transition from March to April brings a temperature rise, with average high-temperatures increasing from a wintry 41.4°F (5.2°C) to a fresh 54.3°F (12.4°C). The month of April records an average low-temperature of 37.9°F (3.3°C).Humidity
In Postville, Iowa, the average relative humidity in April is 77%.Rainfall
In Postville, in April, it is raining for 15.3 days, with typically 3.19" (81mm) of accumulated precipitation. In Postville, during the entire year, the rain falls for 131 days and collects up to 27.91" (709mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Postville. In Postville, in April, snow falls for 3 days, with typically accumulated 2.17" (55mm) of snow. In Postville, during the entire year, snow falls for 52.3 days and aggregates up to 21.26" (540mm) of snow.Daylight
In Postville, the average length of the day in April is 13h and 26min.On the first day of April in Postville, sunrise is at 6:46 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:06 pm CDT.
Sunshine
In April, the average sunshine in Postville is 7.3h.UV index
In April, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: During April, 3 as the daily maximum UV index converts into the following advice:
Make use of precautions - Suggestions to resist sunburn are communicated. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature in Postville?
What is the average humidity in April in Postville?
How much does it rain in Postville in April?
How many days does it snow in April in Postville?
How many hours of daylight does Postville have in April?
What time are sunrise and sunset in April in Postville?
How long on average sun shines in April in Postville?
How high is the UV index in April in Postville?
Average temperature in April
Postville, IA
- Average high temperature in April: 54.3°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in April: 37.9°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in April
Postville, IA
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in April
Postville, IA
- Average wind speed in April: 10.5mph
The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in April
Postville, IA
- Average humidity in April: 77%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (75%).
Average rainfall in April
Postville, IA
- Average rainfall in April: 3.19"
The wettest month (with the highest rainfall) is June (4.33").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in April
Postville, IA
- Average rainfall days in April: 15.3 days
The month with the highest number of rainy days is June (17.7 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in April
Postville, IA
- Average snowfall in April: 2.17"
The month with the highest snowfall is February (5.16").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Postville, IA
- Average snowfall days in April: 3 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Postville, 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 2min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in April
Postville, IA
- Average sunshine days in April: 11.5 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in April
Postville, IA
- Average UV index in April: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in April
Postville, IA
- Average cloud cover in April: 50
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in April
Postville, IA
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).
Postville, Iowa, USA
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