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
Observing a rise in April, the average high-temperature goes from March's fresh 53.4°F (11.9°C) to an enjoyable 64.2°F (17.9°C). Saint Jacob's April nights cool down to an average low-temperature of 47.3°F (8.5°C).Humidity
In Saint Jacob, Illinois, the average relative humidity in April is 77%.Rainfall
In Saint Jacob, in April, during 12 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. Throughout the year, there are 110.6 rainfall days, and 12.01" (305mm) of precipitation is accumulated.Snowfall
April through September are months without snowfall.Daylight
In April, the average length of the day in Saint Jacob, Illinois, is 13h and 14min.On the first day of April in Saint Jacob, 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 in Saint Jacob, Illinois, is 8.5h.UV index
In April, the average daily maximum UV index in Saint Jacob is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 4 during April translates into the following guidance:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Frequently asked questions
What is the average April temperature in Saint Jacob?
What is the average humidity in April in Saint Jacob?
How many days does it rain in April in Saint Jacob?
When it does not snow in Saint Jacob?
Does it snow in Saint Jacob in April?
What is the average length of the day in April in Saint Jacob?
When is the sunrise / sunset in April in Saint Jacob?
How many hours of sunshine does Saint Jacob have in April?
What is the UV index intensity in April in Saint Jacob?
Average temperature in April
Saint Jacob, 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
Saint Jacob, 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
Saint Jacob, 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
Saint Jacob, 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
Saint Jacob, 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
Saint Jacob, 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
Saint Jacob, 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
Saint Jacob, 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
Saint Jacob, 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 months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in April
Saint Jacob, 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
Saint Jacob, 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
Saint Jacob, 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
Saint 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).
Saint Jacob, Illinois, USA
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