March weather forecastOld Saybrook, CT
March
Weather in March
Old Saybrook's climate in March offers a transition. A warming trend emerges as the region braces for spring. The land starts to shake off its winter slumber with increasing daylight and sunshine hours. Snowfall reduces significantly, with more rain providing nourishment for the upcoming spring blooms. Temperatures in March range from 32.5°F (0.3°C) to 43.7°F (6.5°C), signaling a break from the severe cold of preceding months.Temperature
A gentle upsurge in temperatures occurs as February gives way to March, with average highs shifting from a cold 37.9°F (3.3°C) to a chilly 43.7°F (6.5°C). During March, Old Saybrook witnesses a consistent average low-temperature of 32.5°F (0.3°C).Humidity
In Old Saybrook, the average relative humidity in March is 74%.Rainfall
In March, the rain falls for 13.3 days. Throughout March, 2.8" (71mm) of precipitation is accumulated. Throughout the year, there are 166.2 rainfall days, and 34.8" (884mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. The month with the most snowfall in Old Saybrook is March, when snow falls for 4.7 days and typically aggregates up to 2.76" (70mm) of snow.Ocean temperature
In Old Saybrook, the average seawater temperature in March is 39.7°F (4.3°C).Note: During swimming activities, this is a serious life-threatening hazard. Rapid loss of control over breathing impairs cognitive abilities. A specialized swimsuit is essential to limit thermal wastage.
Daylight
In Old Saybrook, 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 7:14 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 March, the average sunshine is 6.3h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In March, the maximum UV index of 2 suggests this advice:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Around midday, solar radiation is most harmful; hence, exposure should be limited. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Old Saybrook, CT
- Average high temperature in March: 43.7°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in March: 32.5°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure in March
Old Saybrook, 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
Old Saybrook, CT
- Average wind speed in March: 10.6mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in March
Old Saybrook, CT
- Average humidity in March: 74%
The months with the highest relative humidity are May, June and July (78%).
The month with the lowest relative humidity is April (73%).
Average rainfall in March
Old Saybrook, CT
- Average rainfall in March: 2.8"
The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in March
Old Saybrook, CT
- Average rainfall days in March: 13.3 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (9 days).
Average snowfall in March
Old Saybrook, CT
- Average snowfall in March: 2.76"
The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in March
Old Saybrook, CT
- Average snowfall days in March: 4.7 days
The month with the highest number of snowfall days is February (7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in March
Old Saybrook, CT
- Average sea temperature in March: 39.8°F
The best month for swimming (with the highest average sea temperature) is August (72.1°F).
The coldest month (with the lowest average sea temperature) is February (38.8°F).
Average daylight in March /
Average sunshine in March
Old Saybrook, 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 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 48min).
Average sunshine days in March
Old Saybrook, CT
- Average sunshine days in March: 13.6 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is July (11.7 days).
Average UV index in March
Old Saybrook, 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
Old Saybrook, 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 29).
Average visibility in March
Old Saybrook, 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).





