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
In August, Groton experiences a minor shift in meteorological conditions with average high-temperatures marked at a still moderately hot 80.2°F (26.8°C), closely mirroring the climate in July. August nights in Groton are marked by an average temperature drop to a mild 60.4°F (15.8°C).Humidity
The average relative humidity in August in Groton is 75%.Rainfall
In Groton, in August, it is raining for 13.2 days, with typically 1.81" (46mm) of accumulated precipitation. Throughout the year, there are 142.2 rainfall days, and 26.97" (685mm) of precipitation is accumulated.Snowfall
In Groton, Massachusetts, snow does not fall in June through September.Daylight
The average length of the day in August in Groton is 13h and 52min.On the first day of the month, sunrise is at 5:39 am and sunset at 8:06 pm. On the last day of August, in Groton, sunrise is at 6:10 am and sunset at 7:21 pm EDT.
Sunshine
August has the most sunshine of the year, with an average of 10.3h 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 reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: In August, an average UV index of 6 transforms into the following instructions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. 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. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Frequently asked questions
What is the temperature in August in Groton?
What is the average humidity in August in Groton?
How much does it rain in Groton in August?
When it does not snow in Groton?
What is the average length of the day in August in Groton?
When are sunrise and sunset in August in Groton?
What month has the most sunshine in Groton?
How many hours of sunshine does Groton have in August?
What are the months with the highest UV index in Groton?
How high is the UV index in August in Groton?
Average temperature in August
Groton, MA
- Average high temperature in August: 80.2°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in August: 60.4°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in August
Groton, MA
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Groton, MA
- Average wind speed in August: 5.4mph
The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in August
Groton, MA
- Average humidity in August: 75%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (71%).
Average rainfall in August
Groton, MA
- Average rainfall in August: 1.81"
The wettest month (with the highest rainfall) is December (2.8").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in August
Groton, MA
- Average rainfall days in August: 13.2 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in August
Groton, MA
- Average snowfall in August: 0"
The month with the highest snowfall is February (6.3").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Groton, MA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (8.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Groton, MA
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in August: 10h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in August
Groton, MA
- Average sunshine days in August: 16.4 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (13.5 days).
Average UV index in August
Groton, 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
Groton, MA
- Average cloud cover in August: 34
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in August
Groton, MA
- Average visibility in August: 5mi
The months with the highest visibility are April, October, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August and September (5mi).
Groton, Massachusetts, USA
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