April weather forecastPontoosuc, IL
April
Weather in April
April in Pontoosuc, Illinois, is a comfortable spring month, with an average temperature fluctuating between 44.2°F (6.8°C) and 61.2°F (16.2°C).Temperature
An escalation in the average high-temperature is seen with the onset of April, moving from a chilly 49.5°F (9.7°C) in March to an enjoyable 61.2°F (16.2°C). Pontoosuc's average low-temperature in April is measured at a frosty 44.2°F (6.8°C).Humidity
In Pontoosuc, the average relative humidity in April is 74%.Rainfall
In Pontoosuc, Illinois, in April, during 11.3 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. In Pontoosuc, during the entire year, the rain falls for 101.8 days and collects up to 9.92" (252mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 0.8 snowfall days, in April, Pontoosuc aggregates 0.59" (15mm) of snow. Throughout the year, there are 24.5 snowfall days, and 4.25" (108mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 19min.On the first day of the month, sunrise is at 6:46 am and sunset at 7:29 pm. On the last day of April, sunrise is at 6:03 am and sunset at 8:00 pm CDT.
Sunshine
In Pontoosuc, the average sunshine in April is 8.2h.UV index
In Pontoosuc, 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 unsafe exposure to UV radiation for the average person.Note: The UV index of 4 during April translates into the following guidance:
Undertake precautions - It is suggested to shield oneself from sunburn. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Experience reduced UV exposure by about half when donning a wide-brim hat. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Pontoosuc, IL
- Average high temperature in April: 61.2°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (30.4°F).
- Average low temperature in April: 44.2°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in April
Pontoosuc, IL
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in April
Pontoosuc, IL
- Average wind speed in April: 10.4mph
The windiest months (with the highest average wind speed) are January, February, March and April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).
Average humidity in April
Pontoosuc, IL
- Average humidity in April: 74%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Pontoosuc, IL
- Average rainfall in April: 1.18"
The wettest month (with the highest rainfall) is May (1.46").
The driest months (with the least rainfall) are January and December (0.47").
Average rainfall days in April
Pontoosuc, IL
- Average rainfall days in April: 11.3 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is February (3.5 days).
Average snowfall in April
Pontoosuc, IL
- Average snowfall in April: 0.59"
The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Pontoosuc, IL
- Average snowfall days in April: 0.8 days
The month with the highest number of snowfall days is January (7.7 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
Pontoosuc, IL
- Average daylight in April: 13h and 18min
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 12min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in April
Pontoosuc, IL
- Average sunshine days in April: 16.8 days
The month with the most sunshine days is December (22.9 days).
The month with the least sunshine days is May (14 days).
Average UV index in April
Pontoosuc, 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
Pontoosuc, IL
- Average cloud cover in April: 44
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July, August and September (Cloud cover 28).
Average visibility in April
Pontoosuc, 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).





