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
April sees a rise in the average high-temperature, climbing from a cold 42.3°F (5.7°C) in March to a cool 54.3°F (12.4°C). Throughout the nights in April, an average low-temperature of 35.8°F (2.1°C) is noted.Humidity
The average relative humidity in April is 80%.Rainfall
April is the month with the most rainfall. Rain falls for 12.8 days and accumulates 1.5" (38mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Saint Marys, in April, snow falls for 3.3 days, with typically accumulated 0.98" (25mm) of snow. In Saint Marys, during the entire year, snow falls for 52.7 days and aggregates up to 16.14" (410mm) of snow.Daylight
In April, the average length of the day is 13h and 22min.On the first day of April, sunrise is at 6:55 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 8:11 pm EDT.
Sunshine
In April, the average sunshine is 6.7h.UV index
The average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In April, the average maximum UV index of 3 translates into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature?
What is the average humidity in April?
What is the rainiest month?
How much does it rain in April?
How many days does it snow in April?
How many hours of daylight does Saint Marys have in April?
When is the sunrise / sunset in April?
How many hours of sunshine does Saint Marys have in April?
What is the UV index reading in April?
Average temperature in April
Saint Marys, PA
- Average high temperature in April: 54.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in April: 35.8°F
The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (16.3°F).
Average pressure in April
Saint Marys, PA
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Saint Marys, PA
- Average wind speed in April: 8.3mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in April
Saint Marys, PA
- Average humidity in April: 80%
The month with the highest relative humidity is February (89%).
The months with the lowest relative humidity are June and July (78%).
Average rainfall in April
Saint Marys, PA
- Average rainfall in April: 1.5"
The wettest month (with the highest rainfall) is April (1.5").
The driest months (with the least rainfall) are January and November (0.83").
Average rainfall days in April
Saint Marys, PA
- Average rainfall days in April: 12.8 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in April
Saint Marys, PA
- Average snowfall in April: 0.98"
The month with the highest snowfall is February (4.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Saint Marys, PA
- Average snowfall days in April: 3.3 days
The month with the highest number of snowfall days is January (12.2 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 Marys, PA
- 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 12min).
- Average sunshine in April: 6h and 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in April
Saint Marys, PA
- Average sunshine days in April: 14 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (13 days).
Average UV index in April
Saint Marys, PA
- Average UV index in April: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Saint Marys, PA
- Average cloud cover in April: 56
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in April
Saint Marys, PA
- Average visibility in April: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (5mi).
The months with the lowest visibility are August and September (4mi).
Saint Marys, Pennsylvania, USA
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