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
April sees a temperature increase, moving from a chilly 47.8°F (8.8°C) in March to a moderate 59.5°F (15.3°C). Griswold throughout April, experiences an average nighttime temperature of 42.4°F (5.8°C).Humidity
In Griswold, the average relative humidity in April is 70%.Rainfall
In Griswold, in April, it is raining for 13.6 days, with typically 1.73" (44mm) of accumulated precipitation. In Griswold, Iowa, during the entire year, the rain falls for 118.7 days and collects up to 20.79" (528mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Griswold, in April, during 1.3 snowfall days, 0.59" (15mm) of snow is typically accumulated. In Griswold, Iowa, during the entire year, snow falls for 32.3 days and aggregates up to 9.41" (239mm) of snow.Daylight
The average length of the day in April is 13h and 21min.On the first day of the month, sunrise is at 7:02 am and sunset at 7:46 pm. On the last day of April, in Griswold, Iowa, sunrise is at 6:18 am and sunset at 8:17 pm CDT.
Sunshine
In April, the average sunshine in Griswold, Iowa, is 8.1h.UV index
In Griswold, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 3 during April translates into the following directions:
Guard yourself - An obligation to protect skin and eyes from harm exists. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures?
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 Griswold have in April?
When is the sunrise / sunset in April?
How many hours of sunshine does Griswold have in April?
What is the UV index intensity in April?
Average temperature in April
Griswold, IA
- Average high temperature in April: 59.5°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (28.4°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 (15.1°F).
Average pressure in April
Griswold, 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
Griswold, 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 July (7.1mph).
Average humidity in April
Griswold, IA
- Average humidity in April: 70%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (69%).
Average rainfall in April
Griswold, IA
- Average rainfall in April: 1.73"
The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in April
Griswold, IA
- Average rainfall days in April: 13.6 days
The month with the highest number of rainy days is June (16.4 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in April
Griswold, IA
- Average snowfall in April: 0.59"
The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Griswold, IA
- Average snowfall days in April: 1.3 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Griswold, 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 1min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in April
Griswold, IA
- Average sunshine days in April: 14.3 days
The month with the most sunshine days is December (21.2 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in April
Griswold, IA
- Average UV index in April: 3
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, October, November and December (UV index 2).
Average cloud cover in April
Griswold, IA
- Average cloud cover in April: 44
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in April
Griswold, IA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Griswold, Iowa, USA
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