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
August begins with an average high-temperature of a still moderately hot 80.4°F (26.9°C), reflecting close similarity to the preceding month. Dedham witnesses a consistent average low-temperature of 63.1°F (17.3°C) throughout August.Humidity
The average relative humidity in August is 74%.Rainfall
In Dedham, Massachusetts, during August, the rain falls for 13.6 days and regularly aggregates up to 1.93" (49mm) of precipitation. In Dedham, during the entire year, the rain falls for 147.4 days and collects up to 28.39" (721mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In August, the average length of the day in Dedham is 13h and 50min.On the first day of the month, sunrise is at 5:38 am and sunset at 8:03 pm. On the last day of August, sunrise is at 6:09 am and sunset at 7:19 pm EDT.
Sunshine
The month with the most sunshine in Dedham is August, with an average of 10.5h of sunshine.UV index
The months with the highest UV index in Dedham are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 6 in August leads to these guidelines:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Frequently asked questions
What is the temperature in August in Dedham?
What is the average humidity in August in Dedham?
How much does it rain in Dedham in August?
When it does not snow in Dedham?
How many hours of daylight does Dedham have in August?
What time are sunrise and sunset in August in Dedham?
What month has the most sunshine in Dedham?
How long on average sun shines in August in Dedham?
What are the months with the highest UV index in Dedham?
What is the UV index reading in August in Dedham?
Average temperature in August
Dedham, MA
- Average high temperature in August: 80.4°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in August: 63.1°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in August
Dedham, 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
Dedham, MA
- Average wind speed in August: 6mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in August
Dedham, MA
- Average humidity in August: 74%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (70%).
Average rainfall in August
Dedham, MA
- Average rainfall in August: 1.93"
The wettest month (with the highest rainfall) is December (2.95").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in August
Dedham, MA
- Average rainfall days in August: 13.6 days
The month with the highest number of rainy days is July (15.8 days).
The months with the least rainy days are January and February (7.8 days).
Average snowfall in August
Dedham, MA
- Average snowfall in August: 0"
The month with the highest snowfall is March (5.24").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Dedham, MA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Dedham, MA
- Average daylight in August: 13h and 5min
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 3min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in August
Dedham, MA
- Average sunshine days in August: 15.5 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is April (13.2 days).
Average UV index in August
Dedham, 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
Dedham, MA
- Average cloud cover in August: 33
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in August
Dedham, MA
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Dedham, Massachusetts, USA
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