March weather forecastPortland, CT
March
Weather in March
March, the first month of the spring in Portland, is a chilly month, with an average temperature ranging between max 44.8°F (7.1°C) and min 30.4°F (-0.9°C).Temperature
March witnesses a minor rise in the average high-temperature, transitioning from a wintry 37°F (2.8°C) in February to a chilly 44.8°F (7.1°C). During the nights in March, Portland observes an average low-temperature of 30.4°F (-0.9°C).Humidity
The average relative humidity in March is 74%.Rainfall
In March, the rain falls for 12.7 days. Throughout March, 2.83" (72mm) of precipitation is accumulated. In Portland, during the entire year, the rain falls for 162.2 days and collects up to 34.13" (867mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. The month with the most snowfall is March, when snow falls for 6.2 days and typically aggregates up to 4.13" (105mm) of snow.Daylight
In March, the average length of the day is 11h and 58min.On the first day of March, sunrise is at 6:23 am and sunset at 5:41 pm EST. On the last day of the month, sunrise is at 6:33 am and sunset at 7:15 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 Portland, the average sunshine in March is 6.1h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Portland. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: In March, the maximum UV index of 2 translates into these guidelines:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. When the Sun is at its strongest around midday, find shade and limit exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Portland, CT
- Average high temperature in March: 44.8°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in March: 30.4°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in March
Portland, CT
- Average pressure in March: 30.04"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in March
Portland, CT
- Average wind speed in March: 8.3mph
The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in March
Portland, CT
- Average humidity in March: 74%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).
Average rainfall in March
Portland, CT
- Average rainfall in March: 2.83"
The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in March
Portland, CT
- Average rainfall days in March: 12.7 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in March
Portland, CT
- Average snowfall in March: 4.13"
The month with the highest snowfall is March (4.13").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in March
Portland, CT
- Average snowfall days in March: 6.2 days
The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in March /
Average sunshine in March
Portland, 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 12min).
- Average sunshine in March: 6h and 6min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in March
Portland, CT
- Average sunshine days in March: 13 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in March
Portland, 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
Portland, CT
- Average cloud cover in March: 49
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in March
Portland, CT
- Average visibility in March: 6mi
The months with the highest visibility are January, March, April, August, September, October, November and December (6mi).
The months with the lowest visibility are February, May, June and July (5mi).





