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 arrival of April brings a change in Garrison's weather, with average high-temperatures moving from March's frosty 44.4°F (6.9°C) to a refreshing 57.4°F (14.1°C). During April, the average low-temperature is a wintry 40.8°F (4.9°C).Humidity
The average relative humidity in April in Garrison, Iowa, is 74%.Rainfall
In Garrison, in April, it is raining for 11 days, with typically 1.06" (27mm) of accumulated precipitation. In Garrison, during the entire year, the rain falls for 103.1 days and collects up to 10.63" (270mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Garrison. April is the last month it regularly snows. During 1.2 snowfall days, in April, Garrison aggregates 0.24" (6mm) of snow. Throughout the year, there are 29.1 snowfall days, and 4.92" (125mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 23min.On the first day of April in Garrison, sunrise is at 6:49 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 8:07 pm CDT.
Sunshine
In Garrison, the average sunshine in April is 7.6h.UV index
The average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 3 in April translates into these instructions:
Be vigilant - Suggestions to stave off sun damage are provided. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April in Garrison?
What is the average humidity in April in Garrison?
How much does it rain in Garrison in April?
What is the last month it snows in Garrison?
What is the average length of the day in April in Garrison?
What time are sunrise and sunset in April in Garrison?
How long on average sun shines in April in Garrison?
What is the UV index intensity in April in Garrison?
Average temperature in April
Garrison, IA
- Average high temperature in April: 57.4°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.3°F).
- Average low temperature in April: 40.8°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure in April
Garrison, 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
Garrison, IA
- Average wind speed in April: 10.8mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in April
Garrison, IA
- Average humidity in April: 74%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (72%).
Average rainfall in April
Garrison, IA
- Average rainfall in April: 1.06"
The wettest month (with the highest rainfall) is May (1.85").
The driest month (with the least rainfall) is February (0.39").
Average rainfall days in April
Garrison, IA
- Average rainfall days in April: 11 days
The month with the highest number of rainy days is June (13.9 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in April
Garrison, IA
- Average snowfall in April: 0.24"
The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Garrison, IA
- Average snowfall days in April: 1.2 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Garrison, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in April
Garrison, IA
- Average sunshine days in April: 16.7 days
The month with the most sunshine days is December (21.9 days).
The month with the least sunshine days is June (13.4 days).
Average UV index in April
Garrison, IA
- Average UV index in April: 3
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
Garrison, IA
- Average cloud cover in April: 48
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in April
Garrison, 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).
Garrison, Iowa, USA
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