August weather forecast
Stonington, CT

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The classy and nice riverside homes by the Mystic River in Stonington, Connecticut
The classy and nice riverside homes by the Mystic River in Stonington, Connecticut

Weather in August

August sustains the summer weather in Stonington, with warm and humid days a regular feature. The temperatures remain relatively steady, akin to the preceding month. The absence of snowfall and average rainfall contributes to the festive summer atmosphere. Outdoor activities continue to thrive, with August promising wonderful weather for all escape seekers. However, as we steer towards fall, one can anticipate a subtle decline in temperatures.

Temperature

Stonington's entry into August measures an average high-temperature of a still warm 77.7°F (25.4°C), closely parallel to the preceding month. Stonington's August nights cool down to an average low-temperature of 66.4°F (19.1°C).

Humidity

In Stonington, the average relative humidity in August is 78%.

Rainfall

In August, in Stonington, the rain falls for 16 days. Throughout August, 2.6" (66mm) of precipitation is accumulated. Throughout the year, there are 166.1 rainfall days, and 34.09" (866mm) of precipitation is accumulated.

Snowfall

In Stonington, snow does not fall in May through September.

Daylight

In Stonington, the average length of the day in August is 13h and 47min.
On the first day of August in Stonington, Connecticut, sunrise is at 5:43 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 7:21 pm EDT.

Sunshine

With an average of 10.6h of sunshine, August has the most sunshine of the year in Stonington.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Stonington. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 6 in August transforms into the following instructions:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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Frequently asked questions

What are August temperatures in Stonington?

Stonington in August has an average high-temperature of 77.7°F (25.4°C) and an average low-temperature of 66.4°F (19.1°C).

What is the average humidity in August in Stonington?

The average relative humidity in August in Stonington is 78%.

How many days does it rain in August in Stonington?

In Stonington, in August, during 16 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

When it does not snow in Stonington?

May through September are months without snowfall in Stonington, Connecticut.

How many hours of daylight does Stonington have in August?

In Stonington, the average day length in August is 13h and 47min.

When are sunrise and sunset in August in Stonington?

In August, on the first day of the month, sunrise is at 5:43 am and sunset at 8:04 pm. On the last day of the month, in Stonington, sunrise is at 6:13 am and sunset at 7:21 pm EDT.

What month has the most sunshine in Stonington?

August has the most sunshine of the year, with an average of 10.6h of sunshine.

How long on average sun shines in August in Stonington?

In August, the average sunshine duration in Stonington is 10.6h.

What is the month with the highest UV index in Stonington?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Stonington.

What is the UV index reading in August in Stonington?

The average daily maximum UV index in August in Stonington, Connecticut, is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Stonington, CT

Average temperature in August - Stonington, CT
  • Average high temperature in August: 77.7°F

The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in August: 66.4°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).

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Average pressure in August
Stonington, CT

Average pressure in August - Stonington, CT
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in August
Stonington, CT

Average wind speed in August - Stonington, CT
  • Average wind speed in August: 8.1mph

The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is August (8.1mph).

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Average humidity in August
Stonington, CT

Average humidity in August - Stonington, CT
  • Average humidity in August: 78%

The month with the highest relative humidity is June (81%).
The months with the lowest relative humidity are January, March, April and November (74%).

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Average rainfall in August
Stonington, CT

Average rainfall in August - Stonington, CT
  • Average rainfall in August: 2.6"

The wettest month (with the highest rainfall) is December (3.86").
The driest month (with the least rainfall) is September (1.73").

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Average rainfall days in August
Stonington, CT

Average rainfall days in August - Stonington, CT
  • Average rainfall days in August: 16 days

The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is February (10.1 days).

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Average snowfall in August
Stonington, CT

Average snowfall in August - Stonington, CT
  • Average snowfall in August: 0"

The month with the highest snowfall is March (2.44").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Stonington, CT

Average snowfall days in August - Stonington, CT
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Stonington, CT

Average daylight in August / Average sunshine in August - Stonington, CT
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 10h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).

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Average sunshine days in August
Stonington, CT

Average sunshine days in August - Stonington, CT
  • Average sunshine days in August: 12.3 days

The month with the most sunshine days is November (16.5 days).
The months with the least sunshine days are June and July (11.7 days).

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Average UV index in August
Stonington, CT

Average UV index in August - Stonington, CT
  • 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 and December (UV index 2).

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Average cloud cover in August
Stonington, CT

Average cloud cover in August - Stonington, CT
  • Average cloud cover in August: 28

The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in August
Stonington, CT

Average visibility in August - Stonington, CT
  • 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).

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Stonington, Connecticut, USA

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