April weather forecastSaint Peter, IL
April
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 13h and 12min
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 12min
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: 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: 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: 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: 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).
