April weather forecastGalva, IL
April
Weather in April
April in Galva, Illinois, is a mild spring month, with an average temperature ranging between min 42.4°F (5.8°C) and max 59.2°F (15.1°C).Temperature
Galva, Illinois, in April experiences an increase in the average high-temperature, moving from March's chilly 47.1°F (8.4°C) to a moderate 59.2°F (15.1°C). Galva observes an average low-temperature of 42.4°F (5.8°C) during April nights.Humidity
In Galva, the average relative humidity in April is 74%.Rainfall
In Galva, in April, during 16.3 rainfall days, 3.5" (89mm) of precipitation is typically accumulated. Throughout the year, there are 147.2 rainfall days, and 29.17" (741mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows. During 1.2 snowfall days, in April, Galva aggregates 1.02" (26mm) of snow. Throughout the year, there are 37 snowfall days, and 12.91" (328mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 21min.On the first day of the month, sunrise is at 6:41 am and sunset at 7:25 pm. On the last day of April, sunrise is at 5:57 am and sunset at 7:56 pm CDT.
Sunshine
In Galva, the average sunshine in April is 7.9h.UV index
The average daily maximum UV index in April in Galva is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 4 in April translates into this advice:
Exercise prevention - Protecting skin and eyes from harm is required. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Galva, IL
- Average high temperature in April: 59.2°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in April: 42.4°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in April
Galva, IL
- 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 (29.91"Hg).
Average wind speed in April
Galva, IL
- Average wind speed in April: 10.6mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in April
Galva, IL
- Average humidity in April: 74%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in April
Galva, IL
- Average rainfall in April: 3.5"
The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are January and December (1.42").
Average rainfall days in April
Galva, IL
- Average rainfall days in April: 16.3 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in April
Galva, IL
- Average snowfall in April: 1.02"
The month with the highest snowfall is January (3.66").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Galva, IL
- Average snowfall days in April: 1.2 days
The month with the highest number of snowfall days is January (11.4 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
Galva, IL
- Average daylight in April: 13h and 18min
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: 7h and 54min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in April
Galva, IL
- Average sunshine days in April: 11.5 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in April
Galva, IL
- Average UV index in April: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in April
Galva, IL
- Average cloud cover in April: 47
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in April
Galva, IL
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
