April weather forecast
Pontiac, IL

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Weather in April

April in Pontiac, Illinois, is a refreshing spring month, with temperature in the range of an average low of 43.7°F (6.5°C) and an average high of 59.7°F (15.4°C).

Temperature

The arrival of April brings a change in Pontiac's weather, with average high-temperatures moving from March's frosty 47.5°F (8.6°C) to a refreshing 59.7°F (15.4°C). In the month of April, Pontiac experiences an average low-temperature of 43.7°F (6.5°C).

Humidity

In Pontiac, the average relative humidity in April is 74%.

Rainfall

In Pontiac, Illinois, during April, the rain falls for 13 days and regularly aggregates up to 1.77" (45mm) of precipitation. In Pontiac, during the entire year, the rain falls for 125.3 days and collects up to 15.71" (399mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 0.8 snowfall days, in April, Pontiac aggregates 0.79" (20mm) of snow. In Pontiac, Illinois, during the entire year, snow falls for 30.6 days and aggregates up to 6.93" (176mm) of snow.

Daylight

The average length of the day in April is 13h and 20min.
On the first day of the month, sunrise is at 6:36 am and sunset at 7:19 pm. On the last day of April, sunrise is at 5:52 am and sunset at 7:50 pm CDT.

Sunshine

The average sunshine in April in Pontiac is 7.9h.

UV index

The average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 4 in April translates into this advice:
Ensure safety - Recommendations to avert sunburn are presented. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in April?

The average high-temperature, in April, in Pontiac, is 59.7°F (15.4°C), while the average low-temperature is 43.7°F (6.5°C).

What is the average humidity in April?

In April, the average relative humidity is 74%.

How much does it rain in April?

In April, the rain falls for 13 days. Throughout April, 1.77" (45mm) of precipitation is accumulated.

What is the last month it snows?

April is the last month it regularly snows. During 0.8 snowfall days, in April, Pontiac aggregates 0.79" (20mm) of snow.

How many hours of daylight does Pontiac have in April?

The average day length in April is 13h and 20min.

When is the sunrise / sunset in April?

On the first day of April, sunrise is at 6:36 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 7:50 pm CDT.

How long on average sun shines in April in Pontiac?

The average sunshine duration in April is 7.9h.

How high is the UV index in April?

In April, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Pontiac, IL

Average temperature in April - Pontiac, IL
  • Average high temperature in April: 59.7°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.2°F).

  • Average low temperature in April: 43.7°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure in April
Pontiac, IL

Average pressure in April - Pontiac, 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 (29.92"Hg).

Average wind speed in April
Pontiac, IL

Average wind speed in April - Pontiac, IL
  • Average wind speed in April: 10.6mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in April
Pontiac, IL

Average humidity in April - Pontiac, 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 (71%).

Average rainfall in April
Pontiac, IL

Average rainfall in April - Pontiac, IL
  • Average rainfall in April: 1.77"

The wettest month (with the highest rainfall) is May (2.44").
The driest months (with the least rainfall) are January and February (0.71").

Average rainfall days in April
Pontiac, IL

Average rainfall days in April - Pontiac, IL
  • Average rainfall days in April: 13 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (4.3 days).

Average snowfall in April
Pontiac, IL

Average snowfall in April - Pontiac, IL
  • Average snowfall in April: 0.79"

The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in April
Pontiac, IL

Average snowfall days in April - Pontiac, IL
  • Average snowfall days in April: 0.8 days

The month with the highest number of snowfall days is January (10.2 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
Pontiac, IL

Average daylight in April / Average sunshine in April - Pontiac, 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 18min).

  • Average sunshine in April: 7h and 5min

The months with the most sunshine are June and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in April
Pontiac, IL

Average sunshine days in April - Pontiac, IL
  • Average sunshine days in April: 14 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in April
Pontiac, IL

Average UV index in April - Pontiac, IL
  • Average UV index in April: 4

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in April
Pontiac, IL

Average cloud cover in April - Pontiac, IL
  • Average cloud cover in April: 47

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 32).

Average visibility in April
Pontiac, IL

Average visibility in April - Pontiac, 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).

Pontiac, Illinois, USA

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