March weather forecastPortland, ME
March
Weather in March
As the month rolls into March, signs of spring finally start to come to the surface. The climate warms up, with temperatures escalating from 28.4°F (-2°C) to 38.3°F (3.5°C). One can anticipate Portland, Maine to witness the charm of spring blossoming slowly but steadily. However, a winter chill remains in the air and winter gear might still be needed. Fresh rainfall aids in washing away the winter blues and reveals the first green of the pending spring season.Temperature
In March, the meteorological conditions in Portland subtly change with the average high-temperature edging from a wintry 32.5°F (0.3°C) in February to a still cold 38.3°F (3.5°C). Portland, during the nights of March, experiences an average temperature drop to a freezing cold 28.4°F (-2°C).Humidity
In Portland, the average relative humidity in March is 78%.Rainfall
In Portland, in March, it is raining for 9.3 days, with typically 1.73" (44mm) of accumulated precipitation. In Portland, during the entire year, the rain falls for 127 days and collects up to 21.93" (557mm) of precipitation.Snowfall
Months with snowfall in Portland are January through April, October through December. In Portland, Maine, during March, snow falls for 5.8 days and regularly aggregates up to 2.09" (53mm) of snow. In Portland, during the entire year, snow falls for 29.7 days and aggregates up to 11.73" (298mm) of snow.Ocean temperature
March is the month with the coldest seawater in Portland, with an average ocean temperature of 37.9°F (3.3°C).Note: In the scenario of swimming, this is assessed as life-threatening and highly risky. The chilling water causes severe discomfort and induces instant hyperventilation. A specialized swimsuit is necessary to counter thermal damage.
Daylight
In Portland, the average length of the day in March is 11h and 58min.On the first day of March, sunrise is at 6:16 am and sunset at 5:30 pm EST. On the last day of the month, sunrise is at 6:22 am and sunset at 7:07 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 5.9h.UV index
The months with the lowest UV index in Portland are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: In March, the maximum UV index of 2 suggests these recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Portland, ME
- Average high temperature in March: 38.3°F
The warmest month (with the highest average high temperature) is July (72.5°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in March: 28.4°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in March
Portland, ME
- Average pressure in March: 30.02"Hg
The months with the highest atmospheric pressure are September and November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in March
Portland, ME
- Average wind speed in March: 11.7mph
The windiest month (with the highest average wind speed) is January (12.5mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).
Average humidity in March
Portland, ME
- Average humidity in March: 78%
The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is November (74%).
Average rainfall in March
Portland, ME
- Average rainfall in March: 1.73"
The wettest month (with the highest rainfall) is October (2.36").
The driest month (with the least rainfall) is September (1.18").
Average rainfall days in March
Portland, ME
- Average rainfall days in March: 9.3 days
The month with the highest number of rainy days is July (14.7 days).
The month with the least rainy days is January (5.7 days).
Average snowfall in March
Portland, ME
- Average snowfall in March: 2.09"
The month with the highest snowfall is February (2.91").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in March
Portland, ME
- Average snowfall days in March: 5.8 days
The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in March
Portland, ME
- Average sea temperature in March: 38°F
The best month for swimming (with the highest average sea temperature) is August (63.7°F).
The coldest month (with the lowest average sea temperature) is March (38°F).
Average daylight in March /
Average sunshine in March
Portland, ME
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in March: 5h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in March
Portland, ME
- Average sunshine days in March: 15.6 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (13.8 days).
Average UV index in March
Portland, ME
- Average UV index in March: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in March
Portland, ME
- Average cloud cover in March: 49
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in March
Portland, ME
- 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).
