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
August
Weather in August
Temperature
Upon the onset of August, Jamestown witnesses an average high-temperature of a still moderately hot 79.3°F (26.3°C), showing a close resemblance to the prior month. In August, Jamestown reports a consistent average low-temperature of 58.3°F (14.6°C) during the nights.Humidity
In August, the average relative humidity is 80%.Rainfall
In August, the rain falls for 16.3 days. Throughout August, 1.81" (46mm) of precipitation is accumulated. Throughout the year, in Jamestown, there are 167.1 rainfall days, and 24.25" (616mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Jamestown, Pennsylvania, the average length of the day in August is 13h and 47min.On the first day of August, sunrise is at 6:17 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 7:56 pm EDT.
Sunshine
July and August, with an average of 9.9h of sunshine, are months with the most sunshine.UV index
In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 5 in August leads to these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average August temperature?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow?
What is the average length of the day in August?
When are sunrise and sunset in August?
What is the month with the most sunshine?
How long on average sun shines in August?
What is the UV index reading in August in Jamestown?
Average temperature in August
Jamestown, PA
- Average high temperature in August: 79.3°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in August: 58.3°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure in August
Jamestown, PA
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in August
Jamestown, PA
- Average wind speed in August: 5.2mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is July (5.1mph).
Average humidity in August
Jamestown, PA
- Average humidity in August: 80%
The month with the highest relative humidity is February (89%).
The months with the lowest relative humidity are May, June and July (79%).
Average rainfall in August
Jamestown, PA
- Average rainfall in August: 1.81"
The wettest month (with the highest rainfall) is October (2.52").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in August
Jamestown, PA
- Average rainfall days in August: 16.3 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is January (8 days).
Average snowfall in August
Jamestown, PA
- Average snowfall in August: 0"
The month with the highest snowfall is January (6.38").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Jamestown, PA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (19.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Jamestown, 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 5min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in August
Jamestown, PA
- Average sunshine days in August: 12.6 days
The month with the most sunshine days is August (12.6 days).
The month with the least sunshine days is February (6.3 days).
Average UV index in August
Jamestown, PA
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Jamestown, PA
- Average cloud cover in August: 36
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in August
Jamestown, PA
- Average visibility in August: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).