March weather forecastHyannis, MA
March
Weather in March
As Winter gives way to Spring, Hyannis witnesses significant changes in its meteorological conditions in March. The city experiences a perceptible increase in temperatures on land as spring draws near. Interestingly, the sea temperature decreases slightly to 39°F (3.9°C), defying the pattern of rising temperatures elsewhere. A notable growth in daylight hours brings more sunshine, increasing the UV index. Despite these improvements, the relative humidity remains fairly consistent from Winter to Spring.Temperature
The commencement of March in Hyannis records an average high-temperature of a still cold 41.5°F (5.3°C), barely varying from February's 38.8°F (3.8°C). In March, Hyannis experiences a marginal drop in temperature, with averages of 35.2°F (1.8°C) at night.Humidity
In Hyannis, the average relative humidity in March is 75%.Rainfall
In March, the rain falls for 12.9 days. Throughout March, 3.19" (81mm) of precipitation is accumulated. In Hyannis, during the entire year, the rain falls for 157.2 days and collects up to 31.77" (807mm) of precipitation.Snowfall
Months with snowfall are January through April and December. March is the month with the most snowfall. Snow falls for 5.2 days and accumulates 1.93" (49mm) of snow.Ocean temperature
The month with the coldest seawater in Hyannis, Massachusetts, is March, with an average ocean temperature of 39°F (3.9°C).Note: During swimming, this circumstance is both life-threatening and incredibly perilous. The intense cold sensation provokes rapid hyperventilation. The use of a specialized swimsuit is imperative to prevent thermal injuries.
Daylight
In March, the average length of the day is 11h and 58min.On the first day of March, sunrise is at 6:14 am and sunset at 5:32 pm EST. On the last day of the month, sunrise is at 6:24 am and sunset at 7:05 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 5.9h.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 of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The average daily UV index of 2 in March transforms into the following instructions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Hyannis, MA
- Average high temperature in March: 41.5°F
The warmest month (with the highest average high temperature) is August (72.5°F).
The month with the lowest average high temperature is January (38.3°F).
- Average low temperature in March: 35.2°F
The month with the highest average low temperature is August (68.2°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).
Average pressure in March
Hyannis, MA
- Average pressure in March: 30.02"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in March
Hyannis, MA
- Average wind speed in March: 16.2mph
The windiest month (with the highest average wind speed) is January (16.5mph).
The calmest month (with the lowest average wind speed) is August (10.6mph).
Average humidity in March
Hyannis, MA
- Average humidity in March: 75%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is November (74%).
Average rainfall in March
Hyannis, MA
- Average rainfall in March: 3.19"
The wettest month (with the highest rainfall) is October (3.7").
The driest month (with the least rainfall) is August (1.73").
Average rainfall days in March
Hyannis, MA
- Average rainfall days in March: 12.9 days
The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is February (10.3 days).
Average snowfall in March
Hyannis, MA
- Average snowfall in March: 1.93"
The month with the highest snowfall is March (1.93").
The months with the least snowfall are May, June, July, August, September, October and November (0").
Average snowfall days in March
Hyannis, MA
- Average snowfall days in March: 5.2 days
The month with the highest number of snowfall days is February (7.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in March
Hyannis, MA
- Average sea temperature in March: 39°F
The best month for swimming (with the highest average sea temperature) is August (67.5°F).
The coldest month (with the lowest average sea temperature) is March (39°F).
Average daylight in March /
Average sunshine in March
Hyannis, MA
- 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: 5h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in March
Hyannis, MA
- Average sunshine days in March: 12.5 days
The month with the most sunshine days is August (17.7 days).
The month with the least sunshine days is February (11.4 days).
Average UV index in March
Hyannis, MA
- Average UV index in March: 2
The months with the highest UV index are 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
Hyannis, MA
- Average cloud cover in March: 49
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in March
Hyannis, MA
- 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).
