March weather forecastCos Cob, CT
March
Weather in March
March in Cos Cob is the transition between winter and spring, with weather that's slightly warmer than the preceding winter months. An important aspect is that daylight hours increase to 12 hours a day. In March, the high and low temperatures average 45°F (7.2°C) and 33.8°F (1°C) respectively, suggesting an increase from February. The occurrence of snow decreases, slowly making way for rain showers. Gradually, the weather in March transitions to a mellow spring, making it bearable compared to the chilly winter months.Temperature
Cos Cob in March observes a minor temperature shift, with average high-temperatures adjusting from a cold 38.3°F (3.5°C) in February to a chilly 45°F (7.2°C). Nighttime temperature in Cos Cob lowers to an average of 33.8°F (1°C) in March.Humidity
The average relative humidity in March is 73%.Rainfall
In March, the rain falls for 12.8 days. Throughout March, 2.83" (72mm) of precipitation is accumulated. Throughout the year, in Cos Cob, there are 165.6 rainfall days, and 37.64" (956mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Cos Cob, in March, snow falls for 5 days, with typically accumulated 2.36" (60mm) of snow. In Cos Cob, during the entire year, snow falls for 25.5 days and aggregates up to 8.78" (223mm) of snow.Ocean temperature
In Cos Cob, the average seawater temperature in March is 39.7°F (4.3°C).Note: In the case of swimming, this is seriously cold, dangerous, and can result in death. Without the safeguard of insulated waterproof attire, hypothermia manifests rapidly.
Daylight
In Cos Cob, the average length of the day in March is 11h and 58min.On the first day of March, sunrise is at 6:27 am and sunset at 5:45 pm EST. On the last day of the month, sunrise is at 6:37 am and sunset at 7:18 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 6.2h.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 unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 2 in March interprets into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Enhance your sun protection with tightly woven, yet airy clothing. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Cos Cob, CT
- Average high temperature in March: 45°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (35.8°F).
- Average low temperature in March: 33.8°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in March
Cos Cob, CT
- Average pressure in March: 30.05"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in March
Cos Cob, CT
- Average wind speed in March: 9.7mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in March
Cos Cob, CT
- Average humidity in March: 73%
The months with the highest relative humidity are February, May and December (75%).
The month with the lowest relative humidity is August (71%).
Average rainfall in March
Cos Cob, CT
- Average rainfall in March: 2.83"
The wettest month (with the highest rainfall) is July (4.13").
The driest months (with the least rainfall) are January and February (2.4").
Average rainfall days in March
Cos Cob, CT
- Average rainfall days in March: 12.8 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in March
Cos Cob, CT
- Average snowfall in March: 2.36"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in March
Cos Cob, CT
- Average snowfall days in March: 5 days
The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in March
Cos Cob, CT
- Average sea temperature in March: 39.7°F
The best month for swimming (with the highest average sea temperature) is August (73.1°F).
The coldest month (with the lowest average sea temperature) is February (39.5°F).
Average daylight in March /
Average sunshine in March
Cos Cob, 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 12min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in March
Cos Cob, CT
- Average sunshine days in March: 14 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in March
Cos Cob, 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
Cos Cob, CT
- Average cloud cover in March: 48
The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in March
Cos Cob, 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).
