August weather forecastChester, MA
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Chester, Massachusetts, with an average temperature varying between 77.7°F (25.4°C) and 58.8°F (14.9°C).Temperature
Chester transitions into August recording an average high-temperature of a still warm 77.7°F (25.4°C), closely aligning with the preceding month's temperature. During the nights in August, Chester observes an average low-temperature of 58.8°F (14.9°C).Humidity
The average relative humidity in August is 78%.Rainfall
In Chester, during August, the rain falls for 15.9 days and regularly aggregates up to 2.83" (72mm) of precipitation. In Chester, during the entire year, the rain falls for 155.8 days and collects up to 32.87" (835mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in August is 13h and 50min.On the first day of the month, sunrise is at 5:45 am and sunset at 8:10 pm. On the last day of August, sunrise is at 6:16 am and sunset at 7:27 pm EDT.
Sunshine
July and August, with an average of 9.9h of sunshine, are months with the most sunshine.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: During August, 5 as the daily maximum UV index converts into the following advice:
Prioritize safety - Recommendations to avert sunburn are shared. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Chester, MA
- Average high temperature in August: 77.7°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in August: 58.8°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in August
Chester, MA
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Chester, MA
- Average wind speed in August: 5.3mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in August
Chester, MA
- Average humidity in August: 78%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (74%).
Average rainfall in August
Chester, MA
- Average rainfall in August: 2.83"
The wettest month (with the highest rainfall) is October (3.35").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in August
Chester, MA
- Average rainfall days in August: 15.9 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in August
Chester, MA
- Average snowfall in August: 0"
The month with the highest snowfall is February (7.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Chester, MA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Chester, 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 6min).
- Average sunshine in August: 9h and 54min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in August
Chester, MA
- Average sunshine days in August: 12.8 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in August
Chester, MA
- 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, February, March, November and December (UV index 2).
Average cloud cover in August
Chester, MA
- Average cloud cover in August: 38
The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in August
Chester, MA
- Average visibility in August: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).





