April weather forecastJacob, IL
April
Weather in April
April is an enjoyable spring month in Jacob, Illinois, with temperature in the range of an average low of 48.6°F (9.2°C) and an average high of 66.2°F (19°C).Temperature
As Jacob transitions into April, the average high-temperature is observed to rise from a fresh 55.2°F (12.9°C) in March to an enjoyable 66.2°F (19°C). In the month of April, the temperature generally rests at an average low of 48.6°F (9.2°C).Humidity
The average relative humidity in April in Jacob is 77%.Rainfall
The month with the most rainfall in Jacob is April, when the rain falls for 15.5 days and typically aggregates up to 4.49" (114mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows. During 0.4 snowfall days, in April, Jacob aggregates 0.08" (2mm) of snow. In Jacob, during the entire year, snow falls for 15.9 days and aggregates up to 5.71" (145mm) of snow.Daylight
The average length of the day in April in Jacob is 13h and 12min.On the first day of April, sunrise is at 6:42 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 7:48 pm CDT.
Sunshine
In April, the average sunshine in Jacob, Illinois, is 8.7h.UV index
In Jacob, Illinois, the average daily maximum UV index in April is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 5 in April transforms into the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Enhance your sun protection with tightly woven, yet airy clothing. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Jacob, IL
- Average high temperature in April: 66.2°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in April: 48.6°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in April
Jacob, IL
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Jacob, IL
- Average wind speed in April: 8.9mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in April
Jacob, IL
- Average humidity in April: 77%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Jacob, IL
- Average rainfall in April: 4.49"
The wettest month (with the highest rainfall) is April (4.49").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in April
Jacob, IL
- Average rainfall days in April: 15.5 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in April
Jacob, IL
- Average snowfall in April: 0.08"
The month with the highest snowfall is February (1.73").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Jacob, IL
- Average snowfall days in April: 0.4 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
Jacob, IL
- Average daylight in April: 13h and 12min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in April: 8h and 42min
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 42min).
Average sunshine days in April
Jacob, IL
- Average sunshine days in April: 12.3 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in April
Jacob, IL
- Average UV index in April: 5
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
Jacob, IL
- Average cloud cover in April: 41
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 27).
Average visibility in April
Jacob, 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).
