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 onset of April in Lanark brings a temperature shift, with the average high-temperature moving from a frosty 44.2°F (6.8°C) in March to a moderate 56.5°F (13.6°C). In April, Lanark experiences an average nighttime temperature of 39.9°F (4.4°C).Humidity
In Lanark, the average relative humidity in April is 76%.Rainfall
In April, the rain falls for 14.1 days. Throughout April, 1.85" (47mm) of precipitation is accumulated. Throughout the year, there are 130.8 rainfall days, and 17.95" (456mm) of precipitation is accumulated.Snowfall
Months with snowfall in Lanark are January through April, October through December. April is the last month it regularly snows in Lanark. During 1.1 snowfall days, in April, Lanark aggregates 0.24" (6mm) of snow. In Lanark, Illinois, during the entire year, snow falls for 39.2 days and aggregates up to 8.62" (219mm) of snow.Daylight
In Lanark, the average length of the day in April is 13h and 23min.On the first day of the month, sunrise is at 6:40 am and sunset at 7:25 pm. On the last day of April, in Lanark, sunrise is at 5:55 am and sunset at 7:57 pm CDT.
Sunshine
The average sunshine in April in Lanark is 7.5h.UV index
In April, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 3 during April leads to these advisories:
Take necessary precautions - Suggestions to elude sunburn are provided. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Frequently asked questions
What is the usual temperature for Lanark in April?
What is the average humidity in April in Lanark?
How much does it rain in Lanark in April?
What is the last month it snows in Lanark?
How many hours of daylight does Lanark have in April?
What time are sunrise and sunset in April in Lanark?
How many hours of sunshine does Lanark have in April?
What is the UV index reading in April in Lanark?
Average temperature in April
Lanark, IL
- Average high temperature in April: 56.5°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (25.9°F).
- Average low temperature in April: 39.9°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in April
Lanark, IL
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Lanark, IL
- Average wind speed in April: 10.4mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in April
Lanark, IL
- Average humidity in April: 76%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (75%).
Average rainfall in April
Lanark, IL
- Average rainfall in April: 1.85"
The wettest month (with the highest rainfall) is May (2.76").
The driest months (with the least rainfall) are January and February (0.71").
Average rainfall days in April
Lanark, IL
- Average rainfall days in April: 14.1 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in April
Lanark, IL
- Average snowfall in April: 0.24"
The month with the highest snowfall is January (2.64").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Lanark, IL
- Average snowfall days in April: 1.1 days
The month with the highest number of snowfall days is January (11.2 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
Lanark, 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 3min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in April
Lanark, IL
- Average sunshine days in April: 13.9 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (10 days).
Average UV index in April
Lanark, IL
- Average UV index in April: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Lanark, IL
- Average cloud cover in April: 50
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in April
Lanark, IL
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Lanark, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location
