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
As March gives way to April, the average high-temperature displays an increase, moving from a chilly 49.6°F (9.8°C) to a refreshing 61.5°F (16.4°C). April brings San Jose a consistent average low-temperature of 44.6°F (7°C).Humidity
The average relative humidity in April is 74%.Rainfall
In San Jose, in April, it is raining for 13.3 days, with typically 2.28" (58mm) of accumulated precipitation. In San Jose, Illinois, during the entire year, the rain falls for 131.4 days and collects up to 20.08" (510mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in San Jose. April is the last month it regularly snows. During 0.5 snowfall days, in April, San Jose aggregates 0.39" (10mm) of snow. Throughout the year, there are 25.8 snowfall days, and 8.66" (220mm) 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 6:40 am and sunset at 7:23 pm. On the last day of April, in San Jose, sunrise is at 5:57 am and sunset at 7:53 pm CDT.
Sunshine
In San Jose, Illinois, the average sunshine in April is 8.1h.UV index
In San Jose, Illinois, the average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: In April, an average UV index of 4 transforms into the following instructions:
Guard yourself - Avoiding sunburn is suggested. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
What are the temperatures in San Jose in April?
What is the average humidity in April in San Jose?
How many days does it rain in April in San Jose?
What is the last month it snows in San Jose?
What is the average length of the day in April in San Jose?
What time are sunrise and sunset in April in San Jose?
How many hours of sunshine does San Jose have in April?
What is the UV index reading in April in San Jose?
Average temperature in April
San Jose, IL
- Average high temperature in April: 61.5°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in April: 44.6°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in April
San Jose, IL
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
San Jose, IL
- Average wind speed in April: 10.6mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in April
San Jose, IL
- Average humidity in April: 74%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
San Jose, IL
- Average rainfall in April: 2.28"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is February (1.02").
Average rainfall days in April
San Jose, IL
- Average rainfall days in April: 13.3 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in April
San Jose, IL
- Average snowfall in April: 0.39"
The month with the highest snowfall is January (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
San Jose, IL
- Average snowfall days in April: 0.5 days
The month with the highest number of snowfall days is January (8.4 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
San Jose, IL
- Average daylight in April: 13h and 2min
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 24min).
- Average sunshine in April: 8h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in April
San Jose, IL
- Average sunshine days in April: 14.8 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in April
San Jose, 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
San Jose, IL
- Average cloud cover in April: 45
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in April
San Jose, IL
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
San Jose, Illinois, USA
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