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
Jonestown's weather, upon August's arrival, documents an average high-temperature of a still moderately hot 79.7°F (26.5°C), nearly identical to the prior month. The low-temperature average for Jonestown during August stands at a mild 60.6°F (15.9°C).Humidity
In August, the average relative humidity is 80%.Rainfall
In Jonestown, in August, during 15.8 rainfall days, 3.54" (90mm) of precipitation is typically accumulated. Throughout the year, there are 166.3 rainfall days, and 34.53" (877mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in August is 13h and 44min.On the first day of August, sunrise is at 6:04 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 7:39 pm EDT.
Sunshine
In Jonestown, the average sunshine in August is 9.8h.UV index
In Jonestown, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 5 during August translates into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in August?
What is the average humidity in August?
How many days does it rain in August in Jonestown?
When it does not snow?
What is the average length of the day in August?
When is the sunrise / sunset in August in Jonestown?
How many hours of sunshine does Jonestown have in August?
What is the UV index reading in August?
Average temperature in August
Jonestown, PA
- Average high temperature in August: 79.7°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in August: 60.6°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in August
Jonestown, PA
- Average pressure in August: 30"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
Jonestown, PA
- Average wind speed in August: 4.8mph
The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in August
Jonestown, PA
- Average humidity in August: 80%
The months with the highest relative humidity are February, May, June and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in August
Jonestown, PA
- Average rainfall in August: 3.54"
The wettest months (with the highest rainfall) are May and July (3.58").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in August
Jonestown, PA
- Average rainfall days in August: 15.8 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in August
Jonestown, PA
- Average snowfall in August: 0"
The month with the highest snowfall is January (5.08").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Jonestown, PA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Jonestown, 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 18min).
- Average sunshine in August: 9h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in August
Jonestown, PA
- Average sunshine days in August: 12.4 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (10.1 days).
Average UV index in August
Jonestown, PA
- Average UV index in August: 5
The month with the highest UV index is June (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
Jonestown, PA
- Average cloud cover in August: 35
The months with the most cloud cover are February and December (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in August
Jonestown, PA
- Average visibility in August: 5mi
The months with the highest visibility are March, April, June, July and November (6mi).
The months with the lowest visibility are January, February, May, August, September, October and December (5mi).
Jonestown, Pennsylvania, USA
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