Jamestown
Rhode Island, USA
Long-term weather forecast
Long-term weather forecast

March weather forecast and climate
Jamestown, RI

March, the first month of the spring, in Jamestown, is a chilly month, with temperature in the range of an average low of 33.1°F (0.6°C) and an average high of 43.5°F (6.4°C).

Temperature

In Jamestown, the average high-temperature slightly increases, from a wintry 37.9°F (3.3°C) in February, to a chilly 43.5°F (6.4°C). The average low-temperature, in Jamestown, is 33.1°F (0.6°C).

Humidity

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

Rainfall

In Jamestown, during 12.1 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. In Jamestown, during the entire year, the rain falls for 148.1 days and collects up to 29.65" (753mm) of precipitation.

Snowfall

Months with snowfall are January through March, May, November and December. March is the last month it regularly snows in Jamestown. During 5.2 snowfall days, Jamestown aggregates 2.48" (63mm) of snow. In Jamestown, during the entire year, snow falls for 22.9 days, and aggregates up to 8.78" (223mm) of snow.

Ocean temperature

In Jamestown, the average water temperature is 38.8°F (3.8°C).
Note: For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

Daylight

The average length of the day in Jamestown is 12h.

Sunshine

In March, the average sunshine in Jamestown 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 hazard from the exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 2 interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in March in Jamestown?

In Jamestown, in March, the average high-temperature is 43.5°F (6.4°C), and the average low-temperature is 33.1°F (0.6°C).

What is the least humid month in Jamestown?

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

What is the average humidity in March in Jamestown?

In March, the average relative humidity in Jamestown is 73%.

How many days does it rain in March in Jamestown?

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. During 5.2 snowfall days, in March, Jamestown aggregates 2.48" (63mm) of snow.

What is the ocean temperature in March in Jamestown?

In Jamestown, Rhode Island, in March, the average water temperature is 38.8°F (3.8°C). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

How many hours of daylight does Jamestown have in March?

In Jamestown, the average length of the day in March is 12h.

How many hours of sunshine does Jamestown have in March?

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

When is the lowest UV index in Jamestown?

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

What is the UV index reading in March in Jamestown?

In March, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to the Sun's UV rays.
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 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: 2.83"

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

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 lowest number of rainy days is January (8.3 days).

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

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

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).
Months with the lowest number of snowfall days are June, July, August, September and October (0 days).

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: 12h

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.2h).

  • Average sunshine in March: 6h

The month with most sunshine is August (Average sunshine: 10.5h).
The month with least sunshine is February (Average sunshine: 4.8h).

Average UV index in March - Jamestown, RI
  • Average UV index in March: 2

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March and December (UV index 2).