August weather forecastUpton, MA
August
Weather in August
The last month of the summer, August, is another warm month in Upton, Massachusetts, with an average temperature fluctuating between 61.2°F (16.2°C) and 80.1°F (26.7°C).Temperature
As July turns into August, the average high-temperatures rest at a still moderately hot 80.1°F (26.7°C), showing a minor variation from the prior month. In the month of August, Upton records a consistent average low-temperature of 61.2°F (16.2°C).Humidity
The average relative humidity in August is 77%.Rainfall
In Upton, in August, during 14.8 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. Throughout the year, there are 152.2 rainfall days, and 30.67" (779mm) of precipitation is accumulated.Snowfall
In Upton, snow does not fall in June through October.Daylight
In August, the average length of the day is 13h and 50min.On the first day of August, sunrise is at 5:40 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 7:21 pm EDT.
Sunshine
The month with the most sunshine is August, with an average of 10.1h of sunshine.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum UV index of 6 in August translates into the following recommendations:
Deflect overexposure. Sun protection is a necessity. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Upton, MA
- Average high temperature in August: 80.1°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in August: 61.2°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in August
Upton, MA
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Upton, MA
- Average wind speed in August: 5.7mph
The windiest months (with the highest average wind speed) are January, February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in August
Upton, MA
- Average humidity in August: 77%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).
Average rainfall in August
Upton, MA
- Average rainfall in August: 2.36"
The wettest month (with the highest rainfall) is December (3.15").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in August
Upton, MA
- Average rainfall days in August: 14.8 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in August
Upton, MA
- Average snowfall in August: 0"
The month with the highest snowfall is March (4.92").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in August
Upton, MA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (8.4 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
Upton, MA
- Average daylight in August: 13h and 48min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in August: 10h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in August
Upton, MA
- Average sunshine days in August: 14 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in August
Upton, MA
- Average UV index in August: 6
The months with the highest UV index are June, July and August (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
Upton, MA
- Average cloud cover in August: 36
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in August
Upton, MA
- Average visibility in August: 5mi
The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).





