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
With the onset of April, West Salem's average high-temperature experiences a rise, moving from March's fresh 54.1°F (12.3°C) to an enjoyable 64.9°F (18.3°C). During April, West Salem's temperature averages to a chilly 48.6°F (9.2°C) at night.Humidity
In West Salem, Illinois, the average relative humidity in April is 77%.Rainfall
April is the month with the most rainfall in West Salem. Rain falls for 11.5 days and accumulates 1.3" (33mm) of precipitation.Snowfall
In West Salem, snow does not fall in April through October.Daylight
In April, the average length of the day is 13h and 14min.On the first day of April, sunrise is at 6:35 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 7:43 pm CDT.
Sunshine
In West Salem, the average sunshine in April is 8.5h.UV index
In April, the average daily maximum UV index in West Salem, Illinois, is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: During April, 4 as the daily maximum UV index converts into the following advice:
Ensure safety - Sun damage prevention is strongly urged. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
What is the usual temperature for West Salem in April?
What is the average humidity in April in West Salem?
What is the wettest month in West Salem?
How many days does it rain in April in West Salem?
When it does not snow in West Salem?
Does it snow in West Salem in April?
How many hours of daylight does West Salem have in April?
When is the sunrise / sunset in April in West Salem?
How many hours of sunshine does West Salem have in April?
How high is the UV index in April in West Salem?
Average temperature in April
West Salem, IL
- Average high temperature in April: 64.9°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in April: 48.6°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in April
West Salem, IL
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
West Salem, IL
- Average wind speed in April: 9.9mph
The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in April
West Salem, IL
- Average humidity in April: 77%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in April
West Salem, IL
- Average rainfall in April: 1.3"
The wettest month (with the highest rainfall) is April (1.3").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in April
West Salem, IL
- Average rainfall days in April: 11.5 days
The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is January (5.1 days).
Average snowfall in April
West Salem, IL
- Average snowfall in April: 0"
The month with the highest snowfall is January (0.39").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
West Salem, IL
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is January (3.8 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
West Salem, IL
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in April: 8h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in April
West Salem, IL
- Average sunshine days in April: 16.8 days
The month with the most sunshine days is October (23.2 days).
The months with the least sunshine days are May and June (14.3 days).
Average UV index in April
West Salem, IL
- Average UV index in April: 4
The months with the highest UV index are May, 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
West Salem, IL
- Average cloud cover in April: 42
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in April
West Salem, 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).
West Salem, Illinois, USA
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