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
The arrival of April sees a shift in the average high-temperature, moving from a moderate 56.8°F (13.8°C) in March to a still refreshing 67.6°F (19.8°C). During April, Tamms records a consistent average nighttime temperature of 50.2°F (10.1°C).Humidity
In April, the average relative humidity is 77%.Rainfall
April is the month with the most rainfall. Rain falls for 15.2 days and accumulates 4.21" (107mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 0.3 snowfall days, in April, Tamms aggregates 0.08" (2mm) of snow. In Tamms, during the entire year, snow falls for 11.5 days and aggregates up to 4.88" (124mm) of snow.Daylight
The average length of the day in April is 13h and 11min.On the first day of April, sunrise is at 6:41 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 7:46 pm CDT.
Sunshine
The average sunshine in April is 8.8h.UV index
In Tamms, the average daily maximum UV index in April is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 5 in April translates into this advice:
Guard yourself - An obligation to protect skin and eyes from harm exists. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. 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
What is the temperature in April?
What is the average humidity in April in Tamms?
What is the wettest month?
How much does it rain in April?
What is the last month it snows?
What is the average length of the day in April?
When are sunrise and sunset in April?
How long on average sun shines in April?
What is the UV index reading in April?
Average temperature in April
Tamms, IL
- Average high temperature in April: 67.6°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41.2°F).
- Average low temperature in April: 50.2°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in April
Tamms, IL
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Tamms, IL
- Average wind speed in April: 9mph
The windiest months (with the highest average wind speed) are January, February and March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in April
Tamms, IL
- Average humidity in April: 77%
The months with the highest relative humidity are February, March, May and December (78%).
The month with the lowest relative humidity is October (69%).
Average rainfall in April
Tamms, IL
- Average rainfall in April: 4.21"
The wettest month (with the highest rainfall) is April (4.21").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in April
Tamms, IL
- Average rainfall days in April: 15.2 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.8 days).
Average snowfall in April
Tamms, IL
- Average snowfall in April: 0.08"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Tamms, IL
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is February (3.8 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
Tamms, IL
- Average daylight in April: 13h and 1min
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 42min).
- Average sunshine in April: 8h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in April
Tamms, IL
- Average sunshine days in April: 12.8 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in April
Tamms, 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 and December (UV index 2).
Average cloud cover in April
Tamms, IL
- Average cloud cover in April: 40
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in April
Tamms, 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).
Tamms, Illinois, USA
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