April weather forecastSaint Joseph, IL
April
Weather in April
April is a comfortable spring month in Saint Joseph, Illinois, with an average temperature fluctuating between 61.3°F (16.3°C) and 45.7°F (7.6°C).Temperature
The onset of April brings a rise in the average high-temperature, elevating from a chilly 49.5°F (9.7°C) in March to an enjoyable 61.3°F (16.3°C). Saint Joseph temperatures generally rest at a low of 45.7°F (7.6°C) during the April nights.Humidity
In April, the average relative humidity in Saint Joseph is 74%.Rainfall
April is the month with the most rainfall in Saint Joseph. Rain falls for 13.8 days and accumulates 2.24" (57mm) of precipitation.Snowfall
Months with snowfall in Saint Joseph are January through April, November and December. April is the last month it regularly snows in Saint Joseph. During 0.6 snowfall days, in April, Saint Joseph aggregates 0.12" (3mm) of snow. Throughout the year, in Saint Joseph, there are 27.1 snowfall days, and 5.91" (150mm) of snow is accumulated.Daylight
The average length of the day in April in Saint Joseph, Illinois, is 13h and 18min.On the first day of April in Saint Joseph, sunrise is at 6:34 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 7:46 pm CDT.
Sunshine
The average sunshine in April is 8.1h.UV index
In April, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index, 4 during April, leads to the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Saint Joseph, IL
- Average high temperature in April: 61.3°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in April: 45.7°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in April
Saint Joseph, 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 (29.92"Hg).
Average wind speed in April
Saint Joseph, IL
- Average wind speed in April: 10.6mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in April
Saint Joseph, IL
- Average humidity in April: 74%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (70%).
Average rainfall in April
Saint Joseph, IL
- Average rainfall in April: 2.24"
The wettest month (with the highest rainfall) is April (2.24").
The driest month (with the least rainfall) is September (0.94").
Average rainfall days in April
Saint Joseph, IL
- Average rainfall days in April: 13.8 days
The month with the highest number of rainy days is May (15.3 days).
The months with the least rainy days are January and February (6 days).
Average snowfall in April
Saint Joseph, IL
- Average snowfall in April: 0.12"
The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Saint Joseph, IL
- Average snowfall days in April: 0.6 days
The month with the highest number of snowfall days is January (8.7 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
Saint Joseph, 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 24min).
- Average sunshine in April: 8h and 6min
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
Saint Joseph, IL
- Average sunshine days in April: 13.6 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in April
Saint Joseph, 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
Saint Joseph, IL
- Average cloud cover in April: 45
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in April
Saint Joseph, 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).
