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
April brings a rise in Hillsdale's average high-temperature, moving from a frosty 46.4°F (8°C) in March to a refreshing 58.3°F (14.6°C). Hillsdale's average low-temperature in April is measured at an icy 42.3°F (5.7°C).Humidity
In April, the average relative humidity in Hillsdale is 74%.Rainfall
In Hillsdale, in April, during 16.7 rainfall days, 3.23" (82mm) of precipitation is typically accumulated. In Hillsdale, during the entire year, the rain falls for 145.7 days and collects up to 27.91" (709mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows. During 1.2 snowfall days, in April, Hillsdale aggregates 0.71" (18mm) of snow. In Hillsdale, during the entire year, snow falls for 37.9 days and aggregates up to 13.98" (355mm) of snow.Daylight
The average length of the day in April is 13h and 22min.On the first day of April, sunrise is at 6:42 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 7:58 pm CDT.
Sunshine
In Hillsdale, the average sunshine in April is 7.8h.UV index
In Hillsdale, the average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: In April, the maximum UV index of 4 translates into these guidelines:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Frequently asked questions
What is the average April temperature in Hillsdale?
What is the average humidity in April in Hillsdale?
How much does it rain in Hillsdale in April?
What is the last month it snows in Hillsdale?
What is the average length of the day in April in Hillsdale?
When are sunrise and sunset in April in Hillsdale?
How long on average sun shines in April in Hillsdale?
What is the UV index intensity in April in Hillsdale?
Average temperature in April
Hillsdale, IL
- Average high temperature in April: 58.3°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in April: 42.3°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure in April
Hillsdale, IL
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Hillsdale, IL
- Average wind speed in April: 10.4mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in April
Hillsdale, IL
- Average humidity in April: 74%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in April
Hillsdale, IL
- Average rainfall in April: 3.23"
The wettest month (with the highest rainfall) is May (4.41").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in April
Hillsdale, IL
- Average rainfall days in April: 16.7 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in April
Hillsdale, IL
- Average snowfall in April: 0.71"
The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Hillsdale, IL
- Average snowfall days in April: 1.2 days
The month with the highest number of snowfall days is January (11.3 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
Hillsdale, IL
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 7h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in April
Hillsdale, IL
- Average sunshine days in April: 11.7 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in April
Hillsdale, IL
- Average UV index in April: 4
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Hillsdale, IL
- Average cloud cover in April: 48
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in April
Hillsdale, IL
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Hillsdale, Illinois, USA
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