March weather forecastNorristown, PA
March
Weather in March
March, the first month of the spring in Norristown, is a chilly month, with temperature in the range of an average high of 48.6°F (9.2°C) and an average low of 33.4°F (0.8°C).Temperature
March's onset is marked by a subtle temperature increase, moving from a cold 39.7°F (4.3°C) in February to a chilly 48.6°F (9.2°C). Norristown's temperature lowers to a mean of 33.4°F (0.8°C) during the nights in March.Humidity
The average relative humidity in March is 74%.Rainfall
In Norristown, Pennsylvania, in March, during 11.6 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. Throughout the year, there are 138.2 rainfall days, and 15.59" (396mm) of precipitation is accumulated.Snowfall
January through March, May and December are months with snowfall. The months with the most snowfall are February and March, with an average 0.55" (14mm) of accumulated snow.Daylight
In March, the average length of the day is 11h and 58min.On the first day of the month, sunrise is at 6:33 am and sunset at 5:53 pm EST. On the last day of March, sunrise is at 6:45 am and sunset at 7:25 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 6.5h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Norristown. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In March, a daily maximum UV index of 2 leads to the following instructions:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Norristown, PA
- Average high temperature in March: 48.6°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in March: 33.4°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in March
Norristown, PA
- Average pressure in March: 30.07"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 March
Norristown, PA
- Average wind speed in March: 8.3mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in March
Norristown, PA
- Average humidity in March: 74%
The months with the highest relative humidity are February and October (79%).
The months with the lowest relative humidity are April and July (72%).
Average rainfall in March
Norristown, PA
- Average rainfall in March: 1.1"
The wettest month (with the highest rainfall) is July (1.89").
The driest month (with the least rainfall) is February (0.91").
Average rainfall days in March
Norristown, PA
- Average rainfall days in March: 11.6 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is November (7.4 days).
Average snowfall in March
Norristown, PA
- Average snowfall in March: 0.55"
The months with the highest snowfall are February and March (0.55").
The months with the least snowfall are April, June, July, August, September, October and November (0").
Average snowfall days in March
Norristown, PA
- Average snowfall days in March: 2.6 days
The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are April, June, July, August, September and October (0 days).
Average daylight in March /
Average sunshine in March
Norristown, 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 24min).
- Average sunshine in March: 6h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in March
Norristown, PA
- Average sunshine days in March: 15.7 days
The month with the most sunshine days is November (20.5 days).
The months with the least sunshine days are May and June (12.8 days).
Average UV index in March
Norristown, PA
- Average UV index in March: 2
The months with the highest UV index are May, June, July and August (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
Norristown, PA
- Average cloud cover in March: 47
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in March
Norristown, PA
- Average visibility in March: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
