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
August registers an average high-temperature of a still moderately hot 81.1°F (27.3°C), slightly varied from July's 83.7°F (28.7°C). Saint Peters's nights in August cool down to an average low-temperature of 63°F (17.2°C).Heat index
The heat index value during August is estimated at a hot 86°F (30°C). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.For clarity, heat index numbers account for light winds and areas under shade. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially crucial for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
The average relative humidity in August is 78%.Rainfall
The month with the most rainfall is August, when the rain falls for 15.3 days and typically aggregates up to 2.83" (72mm) of precipitation.Snowfall
In Saint Peters, snow does not fall in June through September.Daylight
The average length of the day in August is 13h and 43min.On the first day of the month, sunrise is at 6:01 am and sunset at 8:16 pm. On the last day of August, sunrise is at 6:30 am and sunset at 7:35 pm EDT.
Sunshine
In August, the average sunshine is 10h.UV index
In August, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 5 during August translates into the following directions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are August temperatures?
What is the average humidity in August?
What is the wettest month?
How much does it rain in August?
When it does not snow?
How many hours of daylight does Saint Peters have in August?
What time are sunrise and sunset in August?
How many hours of sunshine does Saint Peters have in August?
What is the UV index intensity in August?
Average temperature in August
Saint Peters, PA
- Average high temperature in August: 81.1°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in August: 63°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in August
Saint Peters, PA
- Average pressure in August: 29.99"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).
Average wind speed in August
Saint Peters, PA
- Average wind speed in August: 4.8mph
The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in August
Saint Peters, PA
- Average humidity in August: 78%
The months with the highest relative humidity are February and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in August
Saint Peters, PA
- Average rainfall in August: 2.83"
The wettest month (with the highest rainfall) is August (2.83").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in August
Saint Peters, PA
- Average rainfall days in August: 15.3 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in August
Saint Peters, PA
- Average snowfall in August: 0"
The month with the highest snowfall is March (3.03").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Saint Peters, PA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (7.3 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 Peters, PA
- Average daylight in August: 13h and 4min
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 August: 10h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in August
Saint Peters, PA
- Average sunshine days in August: 13.7 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is May (11.6 days).
Average UV index in August
Saint Peters, PA
- Average UV index in August: 5
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in August
Saint Peters, PA
- Average cloud cover in August: 34
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in August
Saint Peters, PA
- Average visibility in August: 6mi
The months with the highest visibility are January, March, April, June, July, August, November and December (6mi).
The months with the lowest visibility are February, May, September and October (5mi).
Saint Peters, Pennsylvania, USA
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