August weather forecastBristol, VT
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Bristol, Vermont, with temperature in the range of an average low of 55°F (12.8°C) and an average high of 76.6°F (24.8°C).Temperature
Bristol sees the arrival of August with an average high-temperature of a still moderately hot 76.6°F (24.8°C), indicating a subtle variation from July. The average low-temperature of 55°F (12.8°C) in August represents a significant drop from the daily high.Humidity
The average relative humidity in August is 78%.Rainfall
In Bristol, in August, it is raining for 17 days, with typically 2.64" (67mm) of accumulated precipitation. Throughout the year, in Bristol, Vermont, there are 175.7 rainfall days, and 30.47" (774mm) of precipitation is accumulated.Snowfall
In Bristol, snow does not fall in June through September.Daylight
In August, the average length of the day is 13h and 58min.On the first day of the month, sunrise is at 5:40 am and sunset at 8:16 pm. On the last day of August, sunrise is at 6:15 am and sunset at 7:29 pm EDT.
Sunshine
In Bristol, the average sunshine in August is 9.9h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: A daily maximum UV index of 5 in August translates into the following instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. To protect against the Sun's most potent rays, avoid direct exposure around midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Bristol, VT
- Average high temperature in August: 76.6°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (24.1°F).
- Average low temperature in August: 55°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in August
Bristol, VT
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Bristol, VT
- Average wind speed in August: 5.3mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in August
Bristol, VT
- Average humidity in August: 78%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in August
Bristol, VT
- Average rainfall in August: 2.64"
The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in August
Bristol, VT
- Average rainfall days in August: 17 days
The month with the highest number of rainy days is June (19.2 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in August
Bristol, VT
- Average snowfall in August: 0"
The month with the highest snowfall is February (11.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Bristol, VT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (21.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Bristol, VT
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in August: 9h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 0min).
Average sunshine days in August
Bristol, VT
- Average sunshine days in August: 11.7 days
The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is February (5.7 days).
Average UV index in August
Bristol, VT
- Average UV index in August: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Bristol, VT
- Average cloud cover in August: 37
The month with the most cloud cover is February (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in August
Bristol, VT
- Average visibility in August: 5mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February and March (4mi).





