March weather forecast
Saint Marys, PA

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Weather in March

The first month of the spring, March, is also an icy month in Saint Marys, Pennsylvania, with an average temperature ranging between min 26.1°F (-3.3°C) and max 42.3°F (5.7°C).

Temperature

The arrival of March brings an increase in high-temperatures, moving from a wintry 32.5°F (0.3°C) in February to a still icy 42.3°F (5.7°C). Saint Marys experiences an average low-temperature of 26.1°F (-3.3°C) in the month of March.

Humidity

In Saint Marys, the average relative humidity in March is 82%.

Rainfall

In Saint Marys, during March, the rain falls for 9.2 days and regularly aggregates up to 1.06" (27mm) of precipitation. Throughout the year, in Saint Marys, Pennsylvania, there are 118.9 rainfall days, and 13.31" (338mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Saint Marys are January through May, October through December. In Saint Marys, in March, snow falls for 7.6 days, with typically accumulated 1.81" (46mm) 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 March, the average length of the day is 11h and 58min.
On the first day of the month, sunrise is at 6:47 am and sunset at 6:05 pm EST. On the last day of March, sunrise is at 6:57 am and sunset at 7:38 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

In Saint Marys, the average sunshine in March is 5.1h.

UV index

In March, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In March, an average UV index of 2 transforms into the following instructions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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Frequently asked questions

How cold is it in Saint Marys in March?

In March, in Saint Marys, the average high-temperature is 42.3°F (5.7°C), and the average low-temperature is 26.1°F (-3.3°C).

What is the average humidity in March in Saint Marys?

In March, the average relative humidity is 82%.

How many days does it rain in March in Saint Marys?

In Saint Marys, in March, during 9.2 rainfall days, 1.06" (27mm) of precipitation is typically accumulated.

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

In Saint Marys, Pennsylvania, in March, during 7.6 snowfall days, 1.81" (46mm) of snow is typically accumulated.

How many hours of daylight does Saint Marys have in March?

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

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

In March, on the first day of the month, sunrise is at 6:47 am and sunset at 6:05 pm EST. On the last day of the month, in Saint Marys, sunrise is at 6:57 am and sunset at 7:38 pm EDT.

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

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Saint Marys, Pennsylvania, and the time zone changes from EST to EDT. DST ends Sunday, November 3. 2024, at 2:00 am.

How long on average sun shines in March in Saint Marys?

In March, the average sunshine duration in Saint Marys is 5.1h.

How high is the UV index in March in Saint Marys?

In March, the average daily maximum UV index in Saint Marys, Pennsylvania, is 2. A UV Index reading of 2, and below, represents a low health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in March
Saint Marys, PA

Average temperature in March - Saint Marys, PA
  • Average high temperature in March: 42.3°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 March: 26.1°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).

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Average pressure in March
Saint Marys, PA

Average pressure in March - Saint Marys, PA
  • Average pressure in March: 30.08"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).

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Average wind speed in March
Saint Marys, PA

Average wind speed in March - Saint Marys, PA
  • Average wind speed in March: 8.2mph

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).

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Average humidity in March
Saint Marys, PA

Average humidity in March - Saint Marys, PA
  • Average humidity in March: 82%

The month with the highest relative humidity is February (89%).
The months with the lowest relative humidity are June and July (78%).

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Average rainfall in March
Saint Marys, PA

Average rainfall in March - Saint Marys, PA
  • Average rainfall in March: 1.06"

The wettest month (with the highest rainfall) is April (1.5").
The driest months (with the least rainfall) are January and November (0.83").

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Average rainfall days in March
Saint Marys, PA

Average rainfall days in March - Saint Marys, PA
  • Average rainfall days in March: 9.2 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).

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Average snowfall in March
Saint Marys, PA

Average snowfall in March - Saint Marys, PA
  • Average snowfall in March: 1.81"

The month with the highest snowfall is February (4.21").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in March
Saint Marys, PA

Average snowfall days in March - Saint Marys, PA
  • Average snowfall days in March: 7.6 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).

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

Average daylight in March / Average sunshine in March - Saint Marys, PA
  • Average daylight in March: 12h and 0min

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 March: 5h and 1min

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).

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Average sunshine days in March
Saint Marys, PA

Average sunshine days in March - Saint Marys, PA
  • Average sunshine days in March: 16.4 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (13 days).

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Average UV index in March
Saint Marys, PA

Average UV index in March - Saint Marys, PA
  • Average UV index in March: 2

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).

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Average cloud cover in March
Saint Marys, PA

Average cloud cover in March - Saint Marys, PA
  • Average cloud cover in March: 63

The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 42).

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Average visibility in March
Saint Marys, PA

Average visibility in March - Saint Marys, PA
  • Average visibility in March: 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).

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Saint Marys, Pennsylvania, USA

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