Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
Saint Marys starts August with an average high-temperature of a still warm 77.5°F (25.3°C), a minor shift from July's 79.3°F (26.3°C). Saint Marys's average low-temperature of 55.4°F (13°C) in August reflects a significant disparity from the daytime highs.Humidity
The average relative humidity in August is 79%.Rainfall
In Saint Marys, in August, it is raining for 11.3 days, with typically 0.87" (22mm) of accumulated precipitation. Throughout the year, there are 118.9 rainfall days, and 13.31" (338mm) of precipitation is accumulated.Snowfall
In Saint Marys, snow does not fall in June through September.Daylight
The average length of the day in August is 13h and 47min.On the first day of August, sunrise is at 6:09 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 7:48 pm EDT.
Sunshine
The months with the most sunshine are July and August, with an average of 9.5h of 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 threat to health from unsafe exposure to UV radiation for the average person.Note: In August, the maximum UV index of 5 suggests these recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Saint Marys in August?
What is the average humidity in August?
How much does it rain in August?
When it does not snow in Saint Marys?
What is the average length of the day in August?
What time are sunrise and sunset in August?
What is the month with the most sunshine?
How many hours of sunshine does Saint Marys have in August?
What are the months with the highest UV index in Saint Marys?
What is the UV index reading in August?
Average temperature in August
Saint Marys, PA
- Average high temperature in August: 77.5°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 August: 55.4°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).
Average pressure in August
Saint Marys, PA
- Average pressure in August: 30"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 August
Saint Marys, PA
- Average wind speed in August: 5.5mph
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).
Average humidity in August
Saint Marys, PA
- Average humidity in August: 79%
The month with the highest relative humidity is February (89%).
The months with the lowest relative humidity are June and July (78%).
Average rainfall in August
Saint Marys, PA
- Average rainfall in August: 0.87"
The wettest month (with the highest rainfall) is April (1.5").
The driest months (with the least rainfall) are January and November (0.83").
Average rainfall days in August
Saint Marys, PA
- Average rainfall days in August: 11.3 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).
Average snowfall in August
Saint Marys, PA
- Average snowfall in August: 0"
The month with the highest snowfall is February (4.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Saint Marys, PA
- Average snowfall days in August: 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).
Average daylight in August /
Average sunshine in August
Saint Marys, PA
- Average daylight in August: 13h 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 August: 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).
Average sunshine days in August
Saint Marys, PA
- Average sunshine days in August: 16.3 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (13 days).
Average UV index in August
Saint Marys, PA
- Average UV index in August: 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).
Average cloud cover in August
Saint Marys, PA
- Average cloud cover in August: 43
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in August
Saint Marys, PA
- Average visibility in August: 4mi
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).
Saint Marys, Pennsylvania, USA
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