April weather forecast
Saint Peter, IL

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Weather in April

April in Saint Peter, Illinois, is a refreshing spring month, with an average temperature fluctuating between 46.6°F (8.1°C) and 63.5°F (17.5°C).

Temperature

April brings a rise in the average high-temperature, transitioning from March's fresh 52.2°F (11.2°C) to a comfortable 63.5°F (17.5°C). The nighttime temperature in Saint Peter dips to a chilly 46.6°F (8.1°C) on average during April.

Humidity

In Saint Peter, Illinois, the average relative humidity in April is 77%.

Rainfall

The wettest months in Saint Peter are April and June, with an average 2.95" (75mm) of rainfall.

Snowfall

January through April, November and December are months with snowfall in Saint Peter. April is the last month it regularly snows in Saint Peter. During 0.3 snowfall days, in April, Saint Peter aggregates 0.04" (1mm) of snow. In Saint Peter, during the entire year, snow falls for 18.9 days and aggregates up to 5.24" (133mm) of snow.

Daylight

In April, the average length of the day in Saint Peter is 13h and 15min.
On the first day of the month, sunrise is at 6:38 am and sunset at 7:19 pm. On the last day of April, in Saint Peter, sunrise is at 5:57 am and sunset at 7:47 pm CDT.

Sunshine

In Saint Peter, the average sunshine in April is 8.2h.

UV index

In April, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 4 in April interprets into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. It's recommended to limit sun exposure when its radiation is at its peak during midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in April in Saint Peter?

The average high-temperature and low-temperature in Saint Peter during April are 63.5°F (17.5°C) and 46.6°F (8.1°C) respectively.

What is the average humidity in April in Saint Peter?

In April, the average relative humidity in Saint Peter is 77%.

What is the wettest month in Saint Peter?

The wettest months in Saint Peter are April and June, with an average 2.95" (75mm) of rainfall.

How many days does it rain in April in Saint Peter?

In Saint Peter, in April, during 14.2 rainfall days, 2.95" (75mm) of precipitation is typically accumulated.

What is the last month it snows in Saint Peter?

April is the last month it regularly snows. During 0.3 snowfall days, in April, Saint Peter aggregates 0.04" (1mm) of snow.

How many hours of daylight does Saint Peter have in April?

The average day length in April in Saint Peter is 13h and 15min.

When are sunrise and sunset in April in Saint Peter?

On the first day of April, sunrise is at 6:38 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 7:47 pm CDT.

How long on average sun shines in April in Saint Peter?

In Saint Peter, the average sunshine duration in April is 8.2h.

What is the UV index intensity in April in Saint Peter?

In Saint Peter, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
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
Saint Peter, IL

Average temperature in April - Saint Peter, IL
  • Average high temperature in April: 63.5°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in April: 46.6°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure in April
Saint Peter, IL

Average pressure in April - Saint Peter, IL
  • Average pressure in April: 29.95"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in April
Saint Peter, IL

Average wind speed in April - Saint Peter, IL
  • Average wind speed in April: 9.9mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity in April
Saint Peter, IL

Average humidity in April - Saint Peter, IL
  • Average humidity in April: 77%

The months with the highest relative humidity are July and August (81%).
The month with the lowest relative humidity is October (71%).

Average rainfall in April
Saint Peter, IL

Average rainfall in April - Saint Peter, IL
  • Average rainfall in April: 2.95"

The wettest months (with the highest rainfall) are April and June (2.95").
The driest month (with the least rainfall) is February (1.18").

Average rainfall days in April
Saint Peter, IL

Average rainfall days in April - Saint Peter, IL
  • Average rainfall days in April: 14.2 days

The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in April
Saint Peter, IL

Average snowfall in April - Saint Peter, IL
  • Average snowfall in April: 0.04"

The month with the highest snowfall is December (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in April
Saint Peter, IL

Average snowfall days in April - Saint Peter, IL
  • Average snowfall days in April: 0.3 days

The month with the highest number of snowfall days is January (5.7 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 Peter, IL

Average daylight in April / Average sunshine in April - Saint Peter, IL
  • Average daylight in April: 13h and 1min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in April: 8h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in April
Saint Peter, IL

Average sunshine days in April - Saint Peter, IL
  • Average sunshine days in April: 13.8 days

The months with the most sunshine days are January and November (19.5 days).
The months with the least sunshine days are May and July (12.3 days).

Average UV index in April
Saint Peter, IL

Average UV index in April - Saint Peter, 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 Peter, IL

Average cloud cover in April - Saint Peter, IL
  • Average cloud cover in April: 44

The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June and July (Cloud cover 29).

Average visibility in April
Saint Peter, IL

Average visibility in April - Saint Peter, 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).

Saint Peter, Illinois, USA

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