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
Old Lyme transitions into August recording an average high-temperature of a still warm 78.4°F (25.8°C), closely aligning with the preceding month's temperature. During the month of August, Old Lyme experiences a steady low-temperature average of 65.7°F (18.7°C).Humidity
The average relative humidity in August in Old Lyme is 77%.Rainfall
In Old Lyme, in August, it is raining for 11.1 days, with typically 0.71" (18mm) of accumulated precipitation. In Old Lyme, during the entire year, the rain falls for 110.7 days and collects up to 8.58" (218mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Old Lyme, the average length of the day in August is 13h and 47min.On the first day of the month, sunrise is at 5:45 am and sunset at 8:05 pm. On the last day of August, in Old Lyme, Connecticut, sunrise is at 6:15 am and sunset at 7:23 pm EDT.
Sunshine
The months with the most sunshine are July and August, with an average of 10.6h of sunshine.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In August, the maximum UV index of 6 suggests this advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Frequently asked questions
What is the average August temperature in Old Lyme?
What is the average humidity in August in Old Lyme?
How many days does it rain in August in Old Lyme?
When it does not snow in Old Lyme?
How many hours of daylight does Old Lyme have in August?
When is the sunrise / sunset in August in Old Lyme?
What are the months with the most sunshine in Old Lyme?
How many hours of sunshine does Old Lyme have in August?
What are the months with the highest UV index in Old Lyme?
How high is the UV index in August in Old Lyme?
Average temperature in August
Old Lyme, CT
- Average high temperature in August: 78.4°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in August: 65.7°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in August
Old Lyme, 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).
Average wind speed in August
Old Lyme, CT
- Average wind speed in August: 7.3mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity in August
Old Lyme, CT
- Average humidity in August: 77%
The months with the highest relative humidity are June and July (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in August
Old Lyme, CT
- Average rainfall in August: 0.71"
The wettest month (with the highest rainfall) is December (0.94").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days in August
Old Lyme, CT
- Average rainfall days in August: 11.1 days
The month with the highest number of rainy days is July (11.5 days).
The months with the least rainy days are February and November (6.6 days).
Average snowfall in August
Old Lyme, CT
- Average snowfall in August: 0"
The month with the highest snowfall is March (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Old Lyme, CT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (5.4 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
Old Lyme, 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 months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in August
Old Lyme, CT
- Average sunshine days in August: 16.8 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is July (15.8 days).
Average UV index in August
Old Lyme, 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, November and December (UV index 2).
Average cloud cover in August
Old Lyme, CT
- Average cloud cover in August: 28
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in August
Old Lyme, 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).
Old Lyme, Connecticut, USA
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