Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
Old Lyme's warmest month, July, generally records average temperatures ranging from a high of 79.5°F (26.4°C) to a low of 66.4°F (19.1°C).Humidity
June and July, with an average relative humidity of 79%, are the most humid months.Rainfall
In July, the rain falls for 11.5 days. Throughout July, 0.83" (21mm) of precipitation is accumulated. Throughout the year, there are 110.7 rainfall days, and 8.58" (218mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Old Lyme.Daylight
The average length of the day in July is 14h and 49min.On the first day of the month, sunrise is at 5:20 am and sunset at 8:26 pm. On the last day of July, sunrise is at 5:44 am and sunset at 8:07 pm EDT.
Sunshine
July and August, with an average of 10.6h of sunshine, are months with the most 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 risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 6 in July interprets into the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the warmest months?
What are the temperatures in July?
What are the most humid months?
What is the average humidity in July?
How much does it rain in Old Lyme in July?
When it does not snow?
What is the average length of the day in July in Old Lyme?
When are sunrise and sunset in July?
What are the months with the most sunshine?
How long on average sun shines in July in Old Lyme?
When is the highest UV index?
How high is the UV index in July?
Average temperature in July
Old Lyme, CT
- Average high temperature in July: 79.5°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 July: 66.4°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 July
Old Lyme, CT
- Average pressure in July: 29.95"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 July
Old Lyme, CT
- Average wind speed in July: 7.2mph
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 July
Old Lyme, CT
- Average humidity in July: 79%
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 July
Old Lyme, CT
- Average rainfall in July: 0.83"
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 July
Old Lyme, CT
- Average rainfall days in July: 11.5 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 July
Old Lyme, CT
- Average snowfall in July: 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 July
Old Lyme, CT
- Average snowfall days in July: 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 July /
Average sunshine in July
Old Lyme, CT
- Average daylight in July: 14h 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 July: 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 July
Old Lyme, CT
- Average sunshine days in July: 15.8 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 July
Old Lyme, CT
- Average UV index in July: 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 July
Old Lyme, CT
- Average cloud cover in July: 31
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 July
Old Lyme, CT
- Average visibility in July: 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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