August weather forecastHarrow, PA
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Harrow, Pennsylvania, with temperature in the range of an average low of 62.2°F (16.8°C) and an average high of 81.7°F (27.6°C).Temperature
Harrow, Pennsylvania, transitions into August recording an average high-temperature of a still moderately hot 81.7°F (27.6°C), closely aligning with the preceding month's temperature. Throughout August, Harrow witnesses a consistent average low-temperature of 62.2°F (16.8°C).Heat index
August's heat index is evaluated at a tropical 87.8°F (31°C). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.It is emphasized that the heat index's values are meant for shaded zones with mild winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Humidity
In Harrow, the average relative humidity in August is 78%.Rainfall
In August, in Harrow, the rain falls for 9.8 days. Throughout August, 0.71" (18mm) of precipitation is accumulated. Throughout the year, there are 91.3 rainfall days, and 7.28" (185mm) of precipitation is accumulated.Snowfall
June through October are months without snowfall in Harrow.Daylight
In August, the average length of the day in Harrow, Pennsylvania, is 13h and 44min.On the first day of the month, sunrise is at 5:58 am and sunset at 8:15 pm. On the last day of August, sunrise is at 6:27 am and sunset at 7:33 pm EDT.
Sunshine
In Harrow, the average sunshine in August is 9.9h.UV index
The average daily maximum UV index in August in Harrow, Pennsylvania, is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In August, the maximum UV index of 5 transforms into these recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Harrow, PA
- Average high temperature in August: 81.7°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in August: 62.2°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in August
Harrow, PA
- Average pressure in August: 29.99"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
Harrow, PA
- Average wind speed in August: 5mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in August
Harrow, PA
- Average humidity in August: 78%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (76%).
Average rainfall in August
Harrow, PA
- Average rainfall in August: 0.71"
The wettest month (with the highest rainfall) is July (0.91").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in August
Harrow, PA
- Average rainfall days in August: 9.8 days
The months with the highest number of rainy days are June and July (10.2 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in August
Harrow, PA
- Average snowfall in August: 0"
The month with the highest snowfall is March (0.63").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in August
Harrow, PA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Harrow, 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 18min).
- Average sunshine in August: 9h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in August
Harrow, PA
- Average sunshine days in August: 19.1 days
The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is June (16.7 days).
Average UV index in August
Harrow, PA
- Average UV index in August: 5
The months with the highest UV index are 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
Harrow, PA
- Average cloud cover in August: 35
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in August
Harrow, PA
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, November and December (6mi).
The months with the lowest visibility are May, June, July, August, September and October (5mi).
