April weather forecastHighland, IL
April
Weather in April
April is an enjoyable spring month in Highland, Illinois, with an average temperature fluctuating between 64.2°F (17.9°C) and 47.3°F (8.5°C).Temperature
The start of April is characterized by an increase in the average high-temperature, transitioning from a cool 53.4°F (11.9°C) in March to an enjoyable 64.2°F (17.9°C). Throughout April nights, Highland experiences a consistent temperature average of 47.3°F (8.5°C).Humidity
In Highland, the average relative humidity in April is 77%.Rainfall
In Highland, Illinois, in April, it is raining for 12 days, with typically 1.3" (33mm) of accumulated precipitation. In Highland, during the entire year, the rain falls for 110.6 days and collects up to 12.01" (305mm) of precipitation.Snowfall
April through September are months without snowfall.Daylight
The average length of the day in April is 13h and 14min.On the first day of April, sunrise is at 6:42 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 7:50 pm CDT.
Sunshine
In April, the average sunshine is 8.5h.UV index
In Highland, Illinois, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 4 in April translates into the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Highland, IL
- Average high temperature in April: 64.2°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in April: 47.3°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 (23.7°F).
Average pressure in April
Highland, IL
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Highland, IL
- Average wind speed in April: 9.3mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in April
Highland, IL
- Average humidity in April: 77%
The months with the highest relative humidity are July and August (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Highland, IL
- Average rainfall in April: 1.3"
The wettest month (with the highest rainfall) is May (1.46").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days in April
Highland, IL
- Average rainfall days in April: 12 days
The month with the highest number of rainy days is May (13.1 days).
The months with the least rainy days are January and December (5.9 days).
Average snowfall in April
Highland, IL
- Average snowfall in April: 0"
The month with the highest snowfall is December (0.94").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in April
Highland, IL
- Average snowfall days in April: 0.2 days
The months with the highest number of snowfall days are January and February (4.8 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
Highland, IL
- Average daylight in April: 13h and 12min
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 30min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in April
Highland, IL
- Average sunshine days in April: 16.2 days
The month with the most sunshine days is December (21.8 days).
The month with the least sunshine days is July (14.5 days).
Average UV index in April
Highland, 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
Highland, IL
- Average cloud cover in April: 42
The months with the most cloud cover are January and February (Cloud cover 50).
The months with the least cloud cover are June, July, August and September (Cloud cover 28).
Average visibility in April
Highland, 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).
