March weather forecast
Jamestown, RI

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Weather in March

March represents the turning point in Jamestown's weather cycle, as the chilling grip of winter loosens and hints of spring grace the city. Sunrise starts to catch up with the alarm clock, as the daylight duration increases to 12 hours. The skyline ceases to be a blanket of white as cloud cover decreases slightly, offering the first signs of blue skies and sunshine. The month stands out with an impressive average rainfall of 2.83" (72mm) across 12.1 days, enhancing the picturesque beauty of the city's iconic landscapes. For locals, March serves as an end and a beginning - an end to the icy reign of winter and the beginning of a seasonal encore that sings the first strains of spring.

Temperature

In Jamestown, the average high-temperature in March slightly rises, from an icy 37.9°F (3.3°C) in February, to a chilly 43.5°F (6.4°C). Jamestown encounters an average low-temperature of 33.1°F (0.6°C) during March nights.

Humidity

March is the least humid month, with an average relative humidity of 73%.

Rainfall

In Jamestown, Rhode Island, in March, it is raining for 12.1 days, with typically 2.83" (72mm) of accumulated precipitation. In Jamestown, Rhode Island, during the entire year, the rain falls for 148.1 days and collects up to 29.65" (753mm) of precipitation.

Snowfall

January through March, May, November and December are months with snowfall. March is the last month it regularly snows in Jamestown, Rhode Island. During 5.2 snowfall days, in March, Jamestown aggregates 2.48" (63mm) of snow. Throughout the year, in Jamestown, there are 22.9 snowfall days, and 8.78" (223mm) of snow is accumulated.

Ocean temperature

In March, the average ocean temperature in Jamestown is 38.8°F (3.8°C).
Note: In relation to swimming, this scenario is excessively cold, perilous, and a direct threat to life. Hypothermia strikes rapidly in the absence of insulated waterproof gear.

Daylight

The average length of the day in March in Jamestown is 11h and 58min.
On the first day of the month, sunrise is at 6:18 am and sunset at 5:36 pm EST. On the last day of March, sunrise is at 6:28 am and sunset at 7:10 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 Jamestown, the average sunshine in March is 6h.

UV index

January through March 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 minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In March, a daily UV index of 2 turns into the following recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. It's recommended to limit sun exposure when its radiation is at its peak during midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is March in Jamestown?

The high-temperature in Jamestown, Rhode Island, during March is 43.5°F (6.4°C) and the low-temperature is 33.1°F (0.6°C).

What is the least humid month in Jamestown?

The least humid month in Jamestown is March, with an average relative humidity of 73%.

What is the average humidity in March in Jamestown?

The average relative humidity in March is 73%.

How much does it rain in Jamestown in March?

In Jamestown, Rhode Island, in March, during 12.1 rainfall days, 2.83" (72mm) of precipitation is typically accumulated.

What is the last month it snows in Jamestown?

March is the last month it regularly snows in Jamestown. During 5.2 snowfall days, in March, Jamestown aggregates 2.48" (63mm) of snow.

What is the water temperature in March in Jamestown?

In Jamestown, Rhode Island, the average seawater temperature in March is 38.8°F (3.8°C). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

How many hours of daylight does Jamestown have in March?

The average day length in March in Jamestown, Rhode Island, is 11h and 58min.

What time are sunrise and sunset in March in Jamestown?

In March, on the first day of the month, sunrise is at 6:18 am and sunset at 5:36 pm EST. On the last day of the month, sunrise is at 6:28 am and sunset at 7:10 pm EDT.

When does Daylight Saving Time (DST) start in March in Jamestown?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Jamestown, Rhode Island, and the time zone changes from EST to EDT. DST ends Sunday, November 3. 2024, at 2:00 am.

How long on average sun shines in March in Jamestown?

In Jamestown, the average sunshine duration in March is 6h.

What are the months with the lowest UV index in Jamestown?

The months with the lowest UV index in Jamestown are January through March and December, with an average maximum UV index of 2.

What is the UV index reading in March in Jamestown?

In March, the average daily maximum UV index in Jamestown is 2. A UV Index reading of 2, and below, represents a low health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in March
Jamestown, RI

Average temperature in March - Jamestown, RI
  • Average high temperature in March: 43.5°F

The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in March: 33.1°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

Average pressure in March
Jamestown, RI

Average pressure in March - Jamestown, RI
  • Average pressure in March: 30.03"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in March
Jamestown, RI

Average wind speed in March - Jamestown, RI
  • Average wind speed in March: 11.9mph

The windiest month (with the highest average wind speed) is January (12.1mph).
The calmest month (with the lowest average wind speed) is August (8.1mph).

Average humidity in March
Jamestown, RI

Average humidity in March - Jamestown, RI
  • Average humidity in March: 73%

The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is March (73%).

Average rainfall in March
Jamestown, RI

Average rainfall in March - Jamestown, RI
  • Average rainfall in March: 2.83"

The wettest month (with the highest rainfall) is October (3.27").
The driest month (with the least rainfall) is September (1.42").

Average rainfall days in March
Jamestown, RI

Average rainfall days in March - Jamestown, RI
  • Average rainfall days in March: 12.1 days

The month with the highest number of rainy days is April (15.6 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in March
Jamestown, RI

Average snowfall in March - Jamestown, RI
  • Average snowfall in March: 2.48"

The month with the highest snowfall is February (2.76").
The months with the least snowfall are April, June, July, August, September and October (0").

Average snowfall days in March
Jamestown, RI

Average snowfall days in March - Jamestown, RI
  • Average snowfall days in March: 5.2 days

The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average sea temperature in March
Jamestown, RI

Average sea temperature in March - Jamestown, RI
  • Average sea temperature in March: 38.9°F

The best month for swimming (with the highest average sea temperature) is August (69.6°F).
The coldest month (with the lowest average sea temperature) is February (38.1°F).

Average daylight in March /
Average sunshine in March
Jamestown, RI

Average daylight in March / Average sunshine in March - Jamestown, RI
  • 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 0min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in March
Jamestown, RI

Average sunshine days in March - Jamestown, RI
  • Average sunshine days in March: 14.4 days

The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is April (12.3 days).

Average UV index in March
Jamestown, RI

Average UV index in March - Jamestown, RI
  • 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 and December (UV index 2).

Average cloud cover in March
Jamestown, RI

Average cloud cover in March - Jamestown, RI
  • Average cloud cover in March: 48

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in March
Jamestown, RI

Average visibility in March - Jamestown, RI
  • 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).

Jamestown, Rhode Island, USA

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