April weather forecastFlanagan, IL
April
Weather in April
April is a refreshing spring month in Flanagan, Illinois, with an average temperature varying between 43.7°F (6.5°C) and 59.7°F (15.4°C).Temperature
As April arrives, a rise in the average high-temperature is observed, moving from a frosty 47.5°F (8.6°C) in March to a refreshing 59.7°F (15.4°C). Flanagan experiences a nighttime temperature average of 43.7°F (6.5°C) during April.Humidity
In April, the average relative humidity is 74%.Rainfall
In April, the rain falls for 13 days. Throughout April, 1.77" (45mm) of precipitation is accumulated. In Flanagan, during the entire year, the rain falls for 125.3 days and collects up to 15.71" (399mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows in Flanagan. During 0.8 snowfall days, in April, Flanagan aggregates 0.79" (20mm) of snow. In Flanagan, Illinois, during the entire year, snow falls for 30.6 days and aggregates up to 6.93" (176mm) of snow.Daylight
The average length of the day in April is 13h and 20min.On the first day of April in Flanagan, sunrise is at 6:37 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 7:51 pm CDT.
Sunshine
The average sunshine in April is 7.9h.UV index
The average daily maximum UV index in April in Flanagan is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 4 in April transforms into this advice:
Heed the precautions - Suggestions to avoid sunburn are made. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Flanagan, IL
- Average high temperature in April: 59.7°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in April: 43.7°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 (18.5°F).
Average pressure in April
Flanagan, 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 (29.92"Hg).
Average wind speed in April
Flanagan, IL
- Average wind speed in April: 10.6mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in April
Flanagan, IL
- Average humidity in April: 74%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Flanagan, IL
- Average rainfall in April: 1.77"
The wettest month (with the highest rainfall) is May (2.44").
The driest months (with the least rainfall) are January and February (0.71").
Average rainfall days in April
Flanagan, IL
- Average rainfall days in April: 13 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in April
Flanagan, IL
- Average snowfall in April: 0.79"
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
Flanagan, IL
- Average snowfall days in April: 0.8 days
The month with the highest number of snowfall days is January (10.2 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
Flanagan, 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 August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in April
Flanagan, IL
- Average sunshine days in April: 14 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in April
Flanagan, 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 December (UV index 1).
Average cloud cover in April
Flanagan, IL
- Average cloud cover in April: 47
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in April
Flanagan, 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).
