March weather forecastSaint Clair, PA
March
Weather in March
March, the first month of the spring in Saint Clair, is a frosty month, with an average temperature varying between 29.3°F (-1.5°C) and 45.3°F (7.4°C).Temperature
With the onset of March, the average high-temperature slightly shifts from February's wintry 36.1°F (2.3°C) to a chilly 45.3°F (7.4°C). Saint Clair usually reports an average low-temperature of 29.3°F (-1.5°C) during the month of March.Humidity
In March, the average relative humidity is 78%.Rainfall
In March, the rain falls for 14.2 days. Throughout March, 2.76" (70mm) of precipitation is accumulated. Throughout the year, there are 172.9 rainfall days, and 34.21" (869mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Saint Clair, during March, snow falls for 6.8 days and regularly aggregates up to 4.96" (126mm) of snow. In Saint Clair, during the entire year, snow falls for 39.7 days and aggregates up to 20.47" (520mm) of snow.Daylight
In March, the average length of the day is 11h and 58min.On the first day of the month, sunrise is at 6:37 am and sunset at 5:56 pm EST. On the last day of March, sunrise is at 6:48 am and sunset at 7:28 pm EDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from EDT to EST.
Sunshine
The average sunshine in March is 6.2h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 2 in March converts into the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Saint Clair, PA
- Average high temperature in March: 45.3°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 March: 29.3°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 March
Saint Clair, PA
- Average pressure in March: 30.08"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 March
Saint Clair, PA
- Average wind speed in March: 8.4mph
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 March
Saint Clair, PA
- Average humidity in March: 78%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).
Average rainfall in March
Saint Clair, PA
- Average rainfall in March: 2.76"
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 March
Saint Clair, PA
- Average rainfall days in March: 14.2 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 March
Saint Clair, PA
- Average snowfall in March: 4.96"
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 March
Saint Clair, PA
- Average snowfall days in March: 6.8 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 March /
Average sunshine in March
Saint Clair, PA
- Average daylight in March: 12h and 0min
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 March: 6h and 12min
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 March
Saint Clair, PA
- Average sunshine days in March: 11.9 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 March
Saint Clair, PA
- Average UV index in March: 2
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 March
Saint Clair, PA
- Average cloud cover in March: 50
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 March
Saint Clair, PA
- Average visibility in March: 5mi
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).
