April weather forecastDe Witt, IL
April
Weather in April
April is a refreshing spring month in De Witt, Illinois, with an average temperature fluctuating between 45.5°F (7.5°C) and 61.3°F (16.3°C).Temperature
The start of April signals an increase in the average high-temperature, moving from a frosty 49.3°F (9.6°C) in March to a comfortable 61.3°F (16.3°C). An average nighttime temperature of 45.5°F (7.5°C) is noted in De Witt during the month of April.Humidity
The average relative humidity in April is 74%.Rainfall
In De Witt, during April, the rain falls for 13.8 days and regularly aggregates up to 2.28" (58mm) of precipitation. Throughout the year, there are 138.7 rainfall days, and 20.91" (531mm) of precipitation is accumulated.Snowfall
Months with snowfall in De Witt are January through April, November and December. April is the last month it regularly snows. During 0.6 snowfall days, in April, De Witt aggregates 0.24" (6mm) of snow. In De Witt, during the entire year, snow falls for 27.3 days and aggregates up to 9.09" (231mm) of snow.Daylight
In April, the average length of the day in De Witt is 13h and 18min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:20 pm. On the last day of April, sunrise is at 5:54 am and sunset at 7:49 pm CDT.
Sunshine
In De Witt, the average sunshine in April is 8h.UV index
The average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 4 during April leads to these instructions:
Act with care - The suggestion to avoid sunburn is emphasized. To avoid the Sun's strongest rays, limit exposure around the mid-day period. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. On your guard! Snow's reflection can almost 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
De Witt, IL
- Average high temperature in April: 61.3°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in April: 45.5°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in April
De Witt, IL
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
De Witt, IL
- Average wind speed in April: 10.7mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in April
De Witt, 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 (70%).
Average rainfall in April
De Witt, IL
- Average rainfall in April: 2.28"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is December (1.1").
Average rainfall days in April
De Witt, IL
- Average rainfall days in April: 13.8 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (6.1 days).
Average snowfall in April
De Witt, IL
- Average snowfall in April: 0.24"
The month with the highest snowfall is January (2.76").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
De Witt, IL
- Average snowfall days in April: 0.6 days
The month with the highest number of snowfall days is January (9.6 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
De Witt, IL
- Average daylight in April: 13h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in April: 8h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in April
De Witt, IL
- Average sunshine days in April: 14 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in April
De Witt, IL
- Average UV index in April: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
De Witt, IL
- Average cloud cover in April: 45
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in April
De Witt, 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).
