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
In Saint Clair, stepping into April brings a temperature increase, moving up from March's frosty 45.3°F (7.4°C) to a refreshing 57.4°F (14.1°C). During the month of April, the temperature in Saint Clair generally drops to a low average of 39.7°F (4.3°C).Humidity
With an average relative humidity of 77%, April is the least humid month in Saint Clair, Pennsylvania.Rainfall
In April, in Saint Clair, the rain falls for 16.8 days. Throughout April, 3.15" (80mm) of precipitation is accumulated. In Saint Clair, during the entire year, the rain falls for 172.9 days and collects up to 34.21" (869mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Saint Clair, during April, snow falls for 1.3 days and regularly aggregates up to 0.24" (6mm) of snow. Throughout the year, there are 39.7 snowfall days, and 20.47" (520mm) of snow is accumulated.Daylight
The average length of the day in April in Saint Clair, Pennsylvania, is 13h and 19min.On the first day of April in Saint Clair, Pennsylvania, sunrise is at 6:46 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:00 pm EDT.
Sunshine
In April, the average sunshine is 7.9h.UV index
In Saint Clair, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index, 3 in April, converts into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
What is the usual temperature for Saint Clair in April?
What is the least humid month in Saint Clair?
What is the average humidity in April in Saint Clair?
How many days does it rain in April in Saint Clair?
How much does it snow in Saint Clair in April?
What is the average length of the day in April in Saint Clair?
When is the sunrise / sunset in April in Saint Clair?
How many hours of sunshine does Saint Clair have in April?
How high is the UV index in April in Saint Clair?
Average temperature in April
Saint Clair, PA
- Average high temperature in April: 57.4°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in April: 39.7°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in April
Saint Clair, PA
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Saint Clair, PA
- Average wind speed in April: 8.3mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in April
Saint Clair, PA
- Average humidity in April: 77%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).
Average rainfall in April
Saint Clair, PA
- Average rainfall in April: 3.15"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is September (2.09").
Average rainfall days in April
Saint Clair, PA
- Average rainfall days in April: 16.8 days
The month with the highest number of rainy days is May (18.7 days).
The months with the least rainy days are January and November (10.8 days).
Average snowfall in April
Saint Clair, PA
- Average snowfall in April: 0.24"
The month with the highest snowfall is January (5.47").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Saint Clair, PA
- Average snowfall days in April: 1.3 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Saint Clair, PA
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 7h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 24min).
Average sunshine days in April
Saint Clair, PA
- Average sunshine days in April: 11.4 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is May (9.6 days).
Average UV index in April
Saint Clair, PA
- Average UV index in April: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in April
Saint Clair, PA
- Average cloud cover in April: 48
The months with the most cloud cover are February and December (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in April
Saint Clair, PA
- Average visibility in April: 6mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Saint Clair, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location
