April weather forecast
Nelson, IL

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Weather in April

April is a moderate spring month in Nelson, Illinois, with an average temperature fluctuating between 57.9°F (14.4°C) and 41.4°F (5.2°C).

Temperature

In April, the meteorological conditions change with the average high-temperature moving from a frosty 45.9°F (7.7°C) in March to a mild 57.9°F (14.4°C). In Nelson, the expected average low-temperature for April is a wintry 41.4°F (5.2°C).

Humidity

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

Rainfall

In Nelson, in April, it is raining for 14.8 days, with typically 1.89" (48mm) of accumulated precipitation. In Nelson, during the entire year, the rain falls for 130.2 days and collects up to 17.36" (441mm) of precipitation.

Snowfall

Months with snowfall in Nelson are January through April, October through December. April is the last month it regularly snows in Nelson. During 1 snowfall days, in April, Nelson aggregates 0.31" (8mm) of snow. In Nelson, during the entire year, snow falls for 34.2 days and aggregates up to 7.87" (200mm) of snow.

Daylight

In April, the average length of the day in Nelson is 13h and 22min.
On the first day of the month, sunrise is at 6:39 am and sunset at 7:24 pm. On the last day of April, in Nelson, sunrise is at 5:54 am and sunset at 7:56 pm CDT.

Sunshine

The average sunshine in April in Nelson is 7.7h.

UV index

In Nelson, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 3 during April translates into these guidelines:
Put precautions into practice - Protective measures against sun-induced damage are advised. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Nelson in April?

April temperatures in Nelson, Illinois, vary between a high-temperature of 57.9°F (14.4°C) and a low-temperature of 41.4°F (5.2°C).

What is the average humidity in April in Nelson?

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

How many days does it rain in April in Nelson?

In Nelson, in April, it is raining for 14.8 days, with typically 1.89" (48mm) of accumulated precipitation.

What is the last month it snows in Nelson?

April is the last month it regularly snows in Nelson, Illinois. During 1 snowfall days, in April, Nelson aggregates 0.31" (8mm) of snow.

What is the average length of the day in April in Nelson?

In Nelson, Illinois, the average day length in April is 13h and 22min.

When is the sunrise / sunset in April in Nelson?

On the first day of April in Nelson, sunrise is at 6:39 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 7:56 pm CDT.

How long on average sun shines in April in Nelson?

In April, the average sunshine duration in Nelson, Illinois, is 7.7h.

What is the UV index reading in April in Nelson?

In Nelson, Illinois, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents 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
Nelson, IL

Average temperature in April - Nelson, IL
  • Average high temperature in April: 57.9°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 (27.7°F).

  • Average low temperature in April: 41.4°F

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).

Average pressure in April
Nelson, IL

Average pressure in April - Nelson, IL
  • Average pressure in April: 29.94"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in April
Nelson, IL

Average wind speed in April - Nelson, 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 (6.4mph).

Average humidity in April
Nelson, IL

Average humidity in April - Nelson, IL
  • Average humidity in April: 74%

The months with the highest relative humidity are January and July (85%).
The month with the lowest relative humidity is October (73%).

Average rainfall in April
Nelson, IL

Average rainfall in April - Nelson, IL
  • Average rainfall in April: 1.89"

The wettest month (with the highest rainfall) is May (2.83").
The driest months (with the least rainfall) are January and February (0.75").

Average rainfall days in April
Nelson, IL

Average rainfall days in April - Nelson, IL
  • Average rainfall days in April: 14.8 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (4.8 days).

Average snowfall in April
Nelson, IL

Average snowfall in April - Nelson, IL
  • Average snowfall in April: 0.31"

The month with the highest snowfall is January (2.56").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in April
Nelson, IL

Average snowfall days in April - Nelson, IL
  • Average snowfall days in April: 1 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
Nelson, IL

Average daylight in April / Average sunshine in April - Nelson, IL
  • Average daylight in April: 13h and 2min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in April: 7h and 4min

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

Average sunshine days in April
Nelson, IL

Average sunshine days in April - Nelson, IL
  • Average sunshine days in April: 13.1 days

The months with the most sunshine days are November and December (18.8 days).
The month with the least sunshine days is June (11.3 days).

Average UV index in April
Nelson, IL

Average UV index in April - Nelson, IL
  • Average UV index in April: 3

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

Average cloud cover in April
Nelson, IL

Average cloud cover in April - Nelson, IL
  • Average cloud cover in April: 48

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 31).

Average visibility in April
Nelson, IL

Average visibility in April - Nelson, 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).

Nelson, Illinois, USA

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