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
As Westchester transitions into April, the average high-temperature shows a change, moving from a chilly 44.2°F (6.8°C) in March to a fresh 55.2°F (12.9°C). Westchester records an average temperature drop to a cold 40.6°F (4.8°C) in April.Humidity
The average relative humidity in April is 74%.Rainfall
In Westchester, in April, it is raining for 15.8 days, with typically 2.76" (70mm) of accumulated precipitation. In Westchester, Illinois, during the entire year, the rain falls for 149.4 days and collects up to 25.08" (637mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Westchester, Illinois, during April, snow falls for 2.3 days and regularly aggregates up to 2.01" (51mm) of snow. Throughout the year, there are 45.8 snowfall days, and 14.25" (362mm) of snow is accumulated.Daylight
In Westchester, Illinois, the average length of the day in April is 13h and 23min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:17 pm. On the last day of April, in Westchester, sunrise is at 5:47 am and sunset at 7:49 pm CDT.
Sunshine
In April, the average sunshine is 7.6h.UV index
In April, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: In April, an average UV index of 3 transforms into the following instructions:
Prioritize safety - Recommendations to avert sunburn are shared. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Frequently asked questions
What is the temperature in April in Westchester?
What is the average humidity in April in Westchester?
How much does it rain in Westchester in April?
How much does it snow in Westchester in April?
How many hours of daylight does Westchester have in April?
When are sunrise and sunset in April in Westchester?
How many hours of sunshine does Westchester have in April?
How high is the UV index in April in Westchester?
Average temperature in April
Westchester, IL
- Average high temperature in April: 55.2°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in April: 40.6°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in April
Westchester, IL
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Westchester, IL
- Average wind speed in April: 9.7mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in April
Westchester, IL
- Average humidity in April: 74%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in April
Westchester, IL
- Average rainfall in April: 2.76"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is December (1.14").
Average rainfall days in April
Westchester, IL
- Average rainfall days in April: 15.8 days
The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in April
Westchester, IL
- Average snowfall in April: 2.01"
The month with the highest snowfall is February (3.86").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Westchester, IL
- Average snowfall days in April: 2.3 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Westchester, IL
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 7h and 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in April
Westchester, IL
- Average sunshine days in April: 11 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is July (9.5 days).
Average UV index in April
Westchester, IL
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Westchester, IL
- Average cloud cover in April: 49
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in April
Westchester, IL
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Westchester, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location
