March weather forecast
Saint Clair, PA

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Weather in March

The first month of the spring, March, is a frosty month in Saint Clair, Pennsylvania, with an average temperature varying between 45.3°F and 29.3°F.

Temperature

An escalation in the average high-temperature is seen with the onset of March, moving from a cold 36.1°F in February to a chilly 45.3°F. Throughout March, Saint Clair witnesses a nighttime temperature average of 29.3°F.

Humidity

In March, the average relative humidity is 78%.

Rainfall

In March, the rain falls for 14.2 days. Throughout March, 2.76" of precipitation is accumulated. In Saint Clair, during the entire year, the rain falls for 172.9 days and collects up to 34.21" of precipitation.

Snowfall

January through May, October through December are months with snowfall in Saint Clair. In Saint Clair, in March, during 6.8 snowfall days, 4.96" of snow is typically accumulated. In Saint Clair, Pennsylvania, during the entire year, snow falls for 39.7 days and aggregates up to 20.47" 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 6:38 am and sunset at 5:55 pm EST. On the last day of March, sunrise is at 6:49 am and sunset at 7:28 pm EDT.
Note: On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time lasts until Sunday, November 5. 2023, at 2:00 am; consequently, the time zone reverts from EDT to EST.

Sunshine

In Saint Clair, the average sunshine in March is 6.2h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 2 in March translates into this advice:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
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FAQ

What is the temperature in March in Saint Clair?

Saint Clair in March has an average high-temperature of 45.3°F and an average low-temperature of 29.3°F.

What is the average humidity in March in Saint Clair?

In March, the average relative humidity is 78%.

How much does it rain in Saint Clair in March?

In Saint Clair, Pennsylvania, in March, it is raining for 14.2 days, with typically 2.76" of accumulated precipitation.

How many days does it snow in March in Saint Clair?

In Saint Clair, in March, snow falls for 6.8 days, with typically accumulated 4.96" of snow.

What is the average length of the day in March in Saint Clair?

In Saint Clair, the average day length in March is 11h and 58min.

When is the sunrise / sunset in March in Saint Clair?

In March, on the first day of the month, sunrise is at 6:38 am and sunset at 5:55 pm EST. On the last day of the month, in Saint Clair, Pennsylvania, sunrise is at 6:49 am and sunset at 7:28 pm EDT.

When does Daylight Saving Time (DST) start in March in Saint Clair?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in Saint Clair, Pennsylvania, and the time zone changes from EST to EDT. DST ends Sunday, November 5. 2023, at 2:00 am.

How many hours of sunshine does Saint Clair have in March?

In March, the average sunshine duration in Saint Clair is 6.2h.

When is the lowest UV index in Saint Clair?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in March in Saint Clair?

The average daily maximum UV index in March in Saint Clair is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in March
Saint Clair, PA

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).

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Average pressure in March
Saint Clair, PA

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).

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Average wind speed in March
Saint Clair, PA

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).

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Average humidity in March
Saint Clair, PA

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%).

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Average rainfall in March
Saint Clair, PA

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").

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Average rainfall days in March
Saint Clair, PA

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).

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Average snowfall in March
Saint Clair, PA

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").

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Average snowfall days in March
Saint Clair, PA

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).

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Average daylight in March /
Average sunshine in March
Saint Clair, PA

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 1min

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).

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Average sunshine days in March
Saint Clair, PA

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).

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Average UV index in March
Saint Clair, PA

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).

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Average cloud cover in March
Saint Clair, PA

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).

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Average visibility in March
Saint Clair, PA

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).

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Saint Clair, Pennsylvania, USA

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