Climate and monthly weather forecast
Jamestown, RI

Weather in January

January, like December, in Jamestown, Rhode Island, is another cold winter month, with an average temperature fluctuating between 36.1°F (2.3°C) and 26.4°F (-3.1°C). With an average high-temperature of 36.1°F (2.3°C) and an average low-temperature of 26.4°F (-3.1°C), January is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Jamestown, Rhode Island, with temperature in the range of an average high of 37.9°F (3.3°C) and an average low of 26.6°F (-3°C). In February, the average high-temperature is almost the same as in January - a still cold 37.9°F (3.3°C). Weather in February »

Weather in March

March, the first month of the spring in Jamestown, is a chilly month, with an average temperature ranging between max 43.5°F (6.4°C) and min 33.1°F (0.6°C). In March, the average high-temperature slightly increases from a cold 37.9°F (3.3°C) in February to a frosty 43.5°F (6.4°C). Weather in March »

Weather in April

April in Jamestown, Rhode Island, is a cool spring month, with an average temperature ranging between min 42.1°F (5.6°C) and max 53.2°F (11.8°C). In April, the average high-temperature rises from a frosty 43.5°F (6.4°C) in March to a cool 53.2°F (11.8°C). Weather in April »

Weather in May

May, the last month of the spring in Jamestown, is an enjoyable month, with an average temperature fluctuating between 50.7°F (10.4°C) and 62.6°F (17°C). In May, the average high-temperature rises from a cool 53.2°F (11.8°C) in April to a comfortable 62.6°F (17°C). Weather in May »

Weather in June

June, the first month of the summer in Jamestown, is an agreeable month, with temperature in the range of an average low of 58.8°F (14.9°C) and an average high of 70.5°F (21.4°C). In June, the average high-temperature slightly increases from an enjoyable 62.6°F (17°C) in May to a pleasant 70.5°F (21.4°C). Weather in June »

Weather in July

July in Jamestown, Rhode Island, is a moderately hot summer month, with an average temperature fluctuating between 78.3°F (25.7°C) and 66.7°F (19.3°C). July is the warmest month, with an average high-temperature of 78.3°F (25.7°C) and an average low-temperature of 66.7°F (19.3°C). Weather in July »

Weather in August

August, the last month of the summer in Jamestown, is another warm month, with temperature in the range of an average high of 77.7°F (25.4°C) and an average low of 65.7°F (18.7°C). In Jamestown, the average high-temperature in August is relatively the same as in July - a still warm 77.7°F (25.4°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Jamestown, Rhode Island, with temperature in the range of an average low of 59.7°F (15.4°C) and an average high of 71.4°F (21.9°C). In Jamestown, the average high-temperature in September marginally drops from a warm 77.7°F (25.4°C) in August to a pleasant 71.4°F (21.9°C). Weather in September »

Weather in October

October, like September, in Jamestown, Rhode Island, is another enjoyable autumn month, with temperature in the range of an average low of 51.3°F (10.7°C) and an average high of 61.7°F (16.5°C). In October, the average high-temperature drops from an agreeable 71.4°F (21.9°C) in September to a comfortable 61.7°F (16.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Jamestown, Rhode Island, with an average temperature ranging between min 40.6°F (4.8°C) and max 51.1°F (10.6°C). In November, the average high-temperature decreases from an enjoyable 61.7°F (16.5°C) in October to a fresh 51.1°F (10.6°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Jamestown, Rhode Island, with an average temperature varying between 42.4°F (5.8°C) and 33.1°F (0.6°C). In Jamestown, the average high-temperature in December marginally drops from a fresh 51.1°F (10.6°C) in November to a wintry 42.4°F (5.8°C). Weather in December »
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FAQ

What is the coldest month in Jamestown?

With an average high-temperature of 36.1°F (2.3°C) and an average low-temperature of 26.4°F (-3.1°C), January is the coldest month in Jamestown, Rhode Island.

How much does it rain in Jamestown?

Throughout the year, in Jamestown, Rhode Island, there are 148.1 rainfall days, and 29.65" (753mm) of precipitation is accumulated.

When does it snow in Jamestown?

Months with snowfall are January through March, May, November and December.

How much does it snow in Jamestown?

In Jamestown, Rhode Island, during the entire year, snow falls for 22.9 days and aggregates up to 8.78" (223mm) of snow.

When is the lowest UV index in Jamestown?

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

What is the snowiest month in Jamestown?

February is the month with the most snowfall in Jamestown. Snow falls for 6.2 days and accumulates 2.76" (70mm) of snow.

When is the ocean coldest in Jamestown?

With an average ocean temperature of 38.1°F (3.4°C), February is the month with the coldest seawater in Jamestown.

What is the month with the least sunshine in Jamestown?

The month with the least sunshine in Jamestown, Rhode Island, is February, with an average of 4.8h of sunshine.

What is the least humid month in Jamestown?

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

When is Daylight Saving Time (DST) in Jamestown?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from EDT to EST.

When it does not snow in Jamestown?

In Jamestown, Rhode Island, snow does not fall in April, June through October.

What is the most humid month in Jamestown?

The most humid month is June, with an average relative humidity of 81%.

When are the longest days in Jamestown?

With an average of 15h and 8min of daylight, June has the longest days of the year in Jamestown.

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

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the warmest month in Jamestown?

With an average high-temperature of 78.3°F (25.7°C) and an average low-temperature of 66.7°F (19.3°C), July is the warmest month in Jamestown.

When is the ocean warmest in Jamestown?

The month with the warmest seawater is August, with an average ocean temperature of 69.6°F (20.9°C).

What month has the most sunshine in Jamestown?

With an average of 10.5h of sunshine, August has the most sunshine of the year in Jamestown, Rhode Island.

What is the driest month in Jamestown?

September is the month with the least rainfall in Jamestown. Rain falls for 11.6 days and accumulates 1.42" (36mm) of precipitation.

What is the rainiest month in Jamestown?

October is the month with the most rainfall in Jamestown, Rhode Island. Rain falls for 13.4 days and accumulates 3.27" (83mm) of precipitation.

What is the month with the shortest days in Jamestown?

December has the shortest days of the year, with an average of 9h and 14min of daylight.

Average temperature
Jamestown, RI

Average temperature - Jamestown, RI

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).

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).

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Average pressure
Jamestown, RI

Average pressure - Jamestown, RI

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

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Average wind speed
Jamestown, RI

Average wind speed - Jamestown, RI

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).

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Average rainfall
Jamestown, RI

Average rainfall - Jamestown, RI

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

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Average rainfall days
Jamestown, RI

Average rainfall days - Jamestown, RI

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).

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Average snowfall
Jamestown, RI

Average snowfall - Jamestown, RI

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").

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Average snowfall days
Jamestown, RI

Average snowfall days - Jamestown, RI

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).

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Average sea temperature
Jamestown, RI

Average sea temperature - Jamestown, RI

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).

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Average daylight / Average sunshine
Jamestown, RI

Average daylight / Average sunshine - Jamestown, RI

The month with the longest days is June (Average daylight: 15h and 8min).
The month with the shortest days is December (Average daylight: 9h and 14min).

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).

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Average sunshine days
Jamestown, RI

Average sunshine days - Jamestown, RI

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

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Average UV index
Jamestown, RI

Average UV index - Jamestown, RI

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).

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Average visibility
Jamestown, RI

Average visibility - Jamestown, RI

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).

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