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 an increase in high-temperatures, moving from a frosty 49.6°F (9.8°C) in March to an enjoyable 61.5°F (16.4°C). An average nighttime temperature of 44.6°F (7°C) is recorded in Delavan during April.Humidity
In Delavan, the average relative humidity in April is 74%.Rainfall
In Delavan, Illinois, in April, it is raining for 13.3 days, with typically 2.28" (58mm) of accumulated precipitation. Throughout the year, in Delavan, there are 131.4 rainfall days, and 20.08" (510mm) of precipitation is accumulated.Snowfall
Months with snowfall in Delavan are January through April, November and December. April is the last month it regularly snows. During 0.5 snowfall days, in April, Delavan aggregates 0.39" (10mm) of snow. In Delavan, during the entire year, snow falls for 25.8 days and aggregates up to 8.66" (220mm) of snow.Daylight
In Delavan, the average length of the day in April is 13h and 19min.On the first day of April, sunrise is at 6:40 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 7:53 pm CDT.
Sunshine
In April, the average sunshine in Delavan is 8.1h.UV index
In April, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: In April, the average maximum UV index of 4 translates into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the average April temperature in Delavan?
What is the average humidity in April in Delavan?
How many days does it rain in April in Delavan?
What is the last month it snows in Delavan?
How many hours of daylight does Delavan have in April?
When are sunrise and sunset in April in Delavan?
How long on average sun shines in April in Delavan?
What is the UV index reading in April in Delavan?
Average temperature in April
Delavan, IL
- Average high temperature in April: 61.5°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in April: 44.6°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in April
Delavan, 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 (29.91"Hg).
Average wind speed in April
Delavan, 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 (6.4mph).
Average humidity in April
Delavan, 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 (71%).
Average rainfall in April
Delavan, 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 February (1.02").
Average rainfall days in April
Delavan, IL
- Average rainfall days in April: 13.3 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in April
Delavan, IL
- Average snowfall in April: 0.39"
The month with the highest snowfall is January (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Delavan, IL
- Average snowfall days in April: 0.5 days
The month with the highest number of snowfall days is January (8.4 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
Delavan, IL
- Average daylight in April: 13h and 2min
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 18min).
- Average sunshine in April: 8h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in April
Delavan, IL
- Average sunshine days in April: 14.8 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in April
Delavan, IL
- Average UV index in April: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Delavan, 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
Delavan, 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).
Delavan, Illinois, USA
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