August weather forecastGreenbrook, PA
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Greenbrook, Pennsylvania, with an average temperature varying between 83.1°F (28.4°C) and 66.7°F (19.3°C).Temperature
The transition into August notes an average high-temperature of a still moderately hot 83.1°F (28.4°C), revealing a mild distinction from the 85.5°F (29.7°C) in July. An average low-temperature of 66.7°F (19.3°C) is recorded during the nights in August.Heat index
During August, the heat index is evaluated at a tropical 89.6°F (32°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a single figure representing how weather conditions feel when combining temperature and humidity. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Humidity
In August, the average relative humidity is 73%.Rainfall
In Greenbrook, in August, during 16 rainfall days, 3.5" (89mm) of precipitation is typically accumulated. Throughout the year, in Greenbrook, Pennsylvania, there are 154.4 rainfall days, and 31.38" (797mm) of precipitation is accumulated.Snowfall
June through October are months without snowfall.Daylight
In Greenbrook, the average length of the day in August is 13h and 43min.On the first day of the month, sunrise is at 5:58 am and sunset at 8:13 pm. On the last day of August, in Greenbrook, sunrise is at 6:26 am and sunset at 7:32 pm EDT.
Sunshine
The average sunshine in August in Greenbrook, Pennsylvania, is 10.2h.UV index
The months with the highest UV index in Greenbrook are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.Note: In August, a regular UV index of 6 translates into these guidelines:
Guard oneself from overexposure. Defence against sun injury is vital. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Greenbrook, PA
- Average high temperature in August: 83.1°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in August: 66.7°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in August
Greenbrook, PA
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Greenbrook, PA
- Average wind speed in August: 5.4mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in August
Greenbrook, PA
- Average humidity in August: 73%
The months with the highest relative humidity are February and October (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall in August
Greenbrook, PA
- Average rainfall in August: 3.5"
The wettest month (with the highest rainfall) is July (3.66").
The driest month (with the least rainfall) is January (1.89").
Average rainfall days in August
Greenbrook, PA
- Average rainfall days in August: 16 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is January (8 days).
Average snowfall in August
Greenbrook, PA
- Average snowfall in August: 0"
The month with the highest snowfall is March (2.99").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in August
Greenbrook, PA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Greenbrook, PA
- Average daylight in August: 13h and 42min
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 12min
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 48min).
Average sunshine days in August
Greenbrook, PA
- Average sunshine days in August: 12.3 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in August
Greenbrook, PA
- Average UV index in August: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Greenbrook, PA
- Average cloud cover in August: 33
The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in August
Greenbrook, PA
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).





