Old Lyme, CT weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Old Lyme now
Loading the National Weather Service forecast…
Old Lyme weather by the hour
Old Lyme weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Old Lyme.
This week in Old Lyme
Sunrise, sunset and moon in Old Lyme
What is the weather usually like in Old Lyme?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 82°F average high
- Februarycoldest month · 25°F average low
- 47.8 inprecipitation per year · 1,215 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Old Lyme: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station ORIENT PT SP, NY US (USC00306276), adjusted for the elevation of Old Lyme.
Old Lyme weather month by month
Sunrise and sunset in Old Lyme through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:11 AM | 4:46 PM | 9 h 35 min |
| February | 6:42 AM | 5:24 PM | 10 h 42 min |
| March | 6:59 AM | 6:57 PM | 11 h 58 min |
| April | 6:07 AM | 7:30 PM | 13 h 22 min |
| May | 5:28 AM | 8:02 PM | 14 h 33 min |
| June | 5:13 AM | 8:25 PM | 15 h 12 min |
| July | 5:27 AM | 8:22 PM | 14 h 54 min |
| August | 5:57 AM | 7:50 PM | 13 h 52 min |
| September | 6:28 AM | 7:00 PM | 12 h 31 min |
| October | 6:59 AM | 6:10 PM | 11 h 10 min |
| November | 6:36 AM | 4:31 PM | 9 h 55 min |
| December | 7:06 AM | 4:22 PM | 9 h 15 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in Old Lyme?
Old Lyme has a humid subtropical climate. The warmest month is July, with an average high of 82°F (28°C), and the coldest is February, with average lows of 25°F (-4°C).
It gets about 47.8 inches (1,215 mm) of precipitation a year. The wettest month is October and the driest is February.
The best time to visit Old Lyme is June to September. At 20 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Old Lyme
Weather in towns near Old Lyme
Questions about the weather in Old Lyme
What is the hottest month in Old Lyme?
July, with an average high of 82°F (28°C).
What is the coldest month in Old Lyme?
February, with an average low of 25°F (-4°C).
How much does it rain in Old Lyme?
About 47.8 inches (1,215 mm) a year; the wettest month is October.
Does it snow in Old Lyme?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Old Lyme?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Old Lyme have?
Humid subtropical (Köppen Cfa).
What is the weather like in Old Lyme in November?
Highs average 54°F and lows 41°F, with about 3.8 inches of precipitation.
What time is sunrise in Old Lyme?
Around 6:36 AM in mid-November, and sunset around 4:31 PM. Today’s exact times are shown above.
Where does this Old Lyme weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Old Lyme.
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