July weather forecast
Saint Marys, PA

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Weather in July

July, the same as June, is a moderately hot summer month in Saint Marys, Pennsylvania, with an average temperature fluctuating between 79.3°F (26.3°C) and 57.2°F (14°C).

Temperature

July, known for its average high temperature of 79.3°F (26.3°C) and an average low temperature of 57.2°F (14°C), is the warmest month.

Humidity

The months with the lowest humidity are June and July, with an average relative humidity of 78%.

Rainfall

In Saint Marys, during July, the rain falls for 13.7 days and regularly aggregates up to 1.14" (29mm) of precipitation. In Saint Marys, during the entire year, the rain falls for 118.9 days and collects up to 13.31" (338mm) of precipitation.

Snowfall

In Saint Marys, snow does not fall in June through September.

Daylight

In July, the average length of the day is 14h and 49min.
On the first day of July, sunrise is at 5:44 am and sunset at 8:51 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 8:32 pm EDT.

Sunshine

July and August, with an average of 9.5h of sunshine, are months with the most sunshine.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 5 during July leads to these instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
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Frequently asked questions

What is the hottest time of year in Saint Marys?

The warmest month is July, with an average high-temperature of 79.3°F (26.3°C) and an average low-temperature of 57.2°F (14°C).

What are July temperatures in Saint Marys?

The high-temperature in Saint Marys, Pennsylvania, during July is 79.3°F (26.3°C) and the low-temperature is 57.2°F (14°C).

What are the least humid months in Saint Marys?

The months with the lowest humidity in Saint Marys are June and July, with an average relative humidity of 78%.

What is the average humidity in July in Saint Marys?

In July, the average relative humidity in Saint Marys is 78%.

How much does it rain in Saint Marys in July?

In Saint Marys, in July, during 13.7 rainfall days, 1.14" (29mm) of precipitation is typically accumulated.

When it does not snow in Saint Marys?

June through September are months without snowfall in Saint Marys, Pennsylvania.

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

In Saint Marys, Pennsylvania, the average day length in July is 14h and 49min.

What time are sunrise and sunset in July in Saint Marys?

In July, on the first day of the month, sunrise is at 5:44 am and sunset at 8:51 pm. On the last day of the month, in Saint Marys, Pennsylvania, sunrise is at 6:08 am and sunset at 8:32 pm EDT.

What are the months with the most sunshine in Saint Marys?

July and August, with an average of 9.5h of sunshine, are months with the most sunshine.

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

The average sunshine duration in July in Saint Marys is 9.5h.

What is the month with the highest UV index in Saint Marys?

The months with the highest UV index in Saint Marys are May through August, with an average maximum UV index of 5.

What is the UV index intensity in July in Saint Marys?

In July, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
Average humidity
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 July
Saint Marys, PA

Average temperature in July - Saint Marys, PA
  • Average high temperature in July: 79.3°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 July: 57.2°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 July
Saint Marys, PA

Average pressure in July - Saint Marys, PA
  • Average pressure in July: 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).

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Average wind speed in July
Saint Marys, PA

Average wind speed in July - Saint Marys, PA
  • Average wind speed in July: 5.7mph

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 July
Saint Marys, PA

Average humidity in July - Saint Marys, PA
  • Average humidity in July: 78%

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 July
Saint Marys, PA

Average rainfall in July - Saint Marys, PA
  • Average rainfall in July: 1.14"

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 July
Saint Marys, PA

Average rainfall days in July - Saint Marys, PA
  • Average rainfall days in July: 13.7 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 July
Saint Marys, PA

Average snowfall in July - Saint Marys, PA
  • Average snowfall in July: 0"

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 July
Saint Marys, PA

Average snowfall days in July - Saint Marys, PA
  • Average snowfall days in July: 0 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 July /
Average sunshine in July
Saint Marys, PA

Average daylight in July / Average sunshine in July - Saint Marys, PA
  • Average daylight in July: 14h and 5min

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 July: 9h and 3min

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 July
Saint Marys, PA

Average sunshine days in July - Saint Marys, PA
  • Average sunshine days in July: 14.3 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 July
Saint Marys, PA

Average UV index in July - Saint Marys, PA
  • Average UV index in July: 5

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 July
Saint Marys, PA

Average cloud cover in July - Saint Marys, PA
  • Average cloud cover in July: 42

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 July
Saint Marys, PA

Average visibility in July - Saint Marys, PA
  • Average visibility in July: 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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