March weather forecastSouth Lyme, CT
March
Weather in March
The first month of the spring, March, is a chilly month in South Lyme, Connecticut, with temperature in the range of an average high of 43.7°F (6.5°C) and an average low of 32.5°F (0.3°C).Temperature
In South Lyme, the average high-temperature in March slightly rises, from an icy 37.9°F (3.3°C) in February, to a frosty 43.7°F (6.5°C). South Lyme experiences a nighttime temperature average of 32.5°F (0.3°C) during March.Humidity
In March, the average relative humidity is 74%.Rainfall
In South Lyme, in March, it is raining for 9.3 days, with typically 0.59" (15mm) of accumulated precipitation. Throughout the year, there are 110.7 rainfall days, and 8.58" (218mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. The month with the most snowfall is March, when snow falls for 3.8 days and typically aggregates up to 0.63" (16mm) of snow.Daylight
The average length of the day in March is 11h and 58min.On the first day of March, sunrise is at 6:22 am and sunset at 5:40 pm EST. On the last day of the month, sunrise is at 6:32 am and sunset at 7:13 pm EDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from EDT to EST.
Sunshine
In South Lyme, the average sunshine in March is 6.3h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In March, the average maximum UV index of 2 translates into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
South Lyme, CT
- Average high temperature in March: 43.7°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 March: 32.5°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 March
South Lyme, CT
- Average pressure in March: 30.04"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 March
South Lyme, CT
- Average wind speed in March: 10.6mph
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 March
South Lyme, CT
- Average humidity in March: 74%
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 March
South Lyme, CT
- Average rainfall in March: 0.59"
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 March
South Lyme, CT
- Average rainfall days in March: 9.3 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 March
South Lyme, CT
- Average snowfall in March: 0.63"
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 March
South Lyme, CT
- Average snowfall days in March: 3.8 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 March /
Average sunshine in March
South Lyme, CT
- Average daylight in March: 12h and 0min
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 March: 6h and 18min
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 March
South Lyme, CT
- Average sunshine days in March: 19.2 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 March
South Lyme, CT
- Average UV index in March: 2
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 March
South Lyme, CT
- Average cloud cover in March: 47
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 March
South Lyme, CT
- Average visibility in March: 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).
