April weather forecastGarnavillo, IA
April
Weather in April
April in Garnavillo, Iowa, is a cool spring month, with an average temperature varying between 38.1°F (3.4°C) and 54.5°F (12.5°C).Temperature
The commencement of April sees a shift in the average high-temperature, moving from an icy 42.3°F (5.7°C) in March to a cool 54.5°F (12.5°C). During the nights in April, Garnavillo experiences a consistent average temperature of 38.1°F (3.4°C).Humidity
In April, the average relative humidity in Garnavillo is 76%.Rainfall
In April, the rain falls for 15.6 days. Throughout April, 3.23" (82mm) of precipitation is accumulated. In Garnavillo, during the entire year, the rain falls for 138 days and collects up to 29.21" (742mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Garnavillo, during April, snow falls for 2.3 days and regularly aggregates up to 1.3" (33mm) of snow. Throughout the year, there are 48.5 snowfall days, and 19.76" (502mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 25min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:31 pm. On the last day of April, sunrise is at 5:59 am and sunset at 8:05 pm CDT.
Sunshine
In Garnavillo, the average sunshine in April is 7.4h.UV index
In Garnavillo, the average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 4 during April, leads to the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Garnavillo, IA
- Average high temperature in April: 54.5°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (23.5°F).
- Average low temperature in April: 38.1°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).
Average pressure in April
Garnavillo, 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
Garnavillo, IA
- Average wind speed in April: 10.3mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in April
Garnavillo, IA
- Average humidity in April: 76%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (75%).
Average rainfall in April
Garnavillo, IA
- Average rainfall in April: 3.23"
The wettest month (with the highest rainfall) is June (4.25").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in April
Garnavillo, IA
- Average rainfall days in April: 15.6 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is February (3.6 days).
Average snowfall in April
Garnavillo, IA
- Average snowfall in April: 1.3"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Garnavillo, IA
- Average snowfall days in April: 2.3 days
The month with the highest number of snowfall days is January (11.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Garnavillo, IA
- Average daylight in April: 13h and 24min
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 24min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in April
Garnavillo, IA
- Average sunshine days in April: 11.6 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is June (8.9 days).
Average UV index in April
Garnavillo, IA
- Average UV index in April: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in April
Garnavillo, IA
- Average cloud cover in April: 50
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in April
Garnavillo, IA
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
