Monthly weather forecast and climate
Jamestown, NY

Weather in January

January, the same as December, in Jamestown, New York, is a freezing cold winter month, with average temperature fluctuating between 17.6°F (-8°C) and 28°F (-2.2°C). January is the coldest month, with an average high-temperature of 28°F (-2.2°C) and an average low-temperature of 17.6°F (-8°C). Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in Jamestown, New York, with average temperature ranging between min 18.9°F (-7.3°C) and max 31.1°F (-0.5°C). In Jamestown, New York, the average high-temperature is relatively the same as in January - a still subzero cold 31.1°F (-0.5°C). Weather in February »

Weather in March

March, the first month of the spring, in Jamestown, is a cold month, with average temperature fluctuating between 39.6°F (4.2°C) and 25.9°F (-3.4°C). In Jamestown, the average high-temperature marginally rises, from a subzero cold 31.1°F (-0.5°C) in February, to a cold 39.6°F (4.2°C). Weather in March »

Weather in April

April is a cool spring month in Jamestown, New York, with average temperature ranging between min 35.6°F (2°C) and max 51.3°F (10.7°C). In Jamestown, New York, the average high-temperature in April rises, from a cold 39.6°F (4.2°C) in March, to a cool 51.3°F (10.7°C). Weather in April »

Weather in May

May, the last month of the spring, in Jamestown, is a comfortable month, with average temperature varying between 46.8°F (8.2°C) and 63.7°F (17.6°C). In Jamestown, the average high-temperature rises, from a cool 51.3°F (10.7°C) in April, to an enjoyable 63.7°F (17.6°C). Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in Jamestown, New York, with temperature in the range of an average low of 54.1°F (12.3°C) and an average high of 70.5°F (21.4°C). In Jamestown, the average high-temperature slightly increases, from an enjoyable 63.7°F (17.6°C) in May, to a pleasant 70.5°F (21.4°C). Weather in June »

Weather in July

July in Jamestown, New York, is a moderately hot summer month, with average temperature varying between 59.4°F (15.2°C) and 75.9°F (24.4°C). The warmest month is July, with an average high-temperature of 75.9°F (24.4°C) and an average low-temperature of 59.4°F (15.2°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Jamestown, New York, with average temperature ranging between max 74.7°F (23.7°C) and min 58.1°F (14.5°C). In Jamestown, New York, the average high-temperature in August is essentially the same as in July - a still moderately hot 74.7°F (23.7°C). Weather in August »

Weather in September

September, the first month of the autumn, in Jamestown, is still a pleasant month, with average temperature ranging between max 69.4°F (20.8°C) and min 53.1°F (11.7°C). In Jamestown, the average high-temperature is practically the same as in August - an agreeable 69.4°F (20.8°C). Weather in September »

Weather in October

October, like September, is a moderate autumn month in Jamestown, New York, with average temperature fluctuating between 56.5°F (13.6°C) and 43.7°F (6.5°C). In Jamestown, New York, the average high-temperature in October drops, from a pleasant 69.4°F (20.8°C) in September, to a mild 56.5°F (13.6°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Jamestown, New York, with average temperature varying between 32.4°F (0.2°C) and 43.7°F (6.5°C). In November, the average high-temperature decreases, from a mild 56.5°F (13.6°C) in October, to a chilly 43.7°F (6.5°C). Weather in November »

Weather in December

December, the first month of the winter, in Jamestown, is still a cold month, with temperature in the range of an average high of 34.5°F (1.4°C) and an average low of 25.9°F (-3.4°C). In Jamestown, the average high-temperature in December decreases, from a frosty 43.7°F (6.5°C) in November, to a wintry 34.5°F (1.4°C). Weather in December »
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FAQ

What is the coldest month in Jamestown?

With an average high-temperature of 28°F (-2.2°C) and an average low-temperature of 17.6°F (-8°C), January is the coldest month.

How many days does it rain in Jamestown?

In Jamestown, New York, during the entire year, the rain falls for 163.4 days and collects up to 27.72" (704mm) of precipitation.

When does it snow in Jamestown?

January through May, October through December are months with snowfall.

How many days does it snow in Jamestown?

Throughout the year, in Jamestown, there are 85.6 snowfall days, and 32.91" (836mm) of snow is accumulated.

What is the month with the least sunshine in Jamestown?

January has the least sunshine of the year, with an average of 2.3h of sunshine.

When is the lowest UV index in Jamestown?

January and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the most humid month in Jamestown?

With an average relative humidity of 89%, February is the most humid month in Jamestown.

What are the least humid months in Jamestown?

Months with the lowest humidity in Jamestown are April, May and September, with an average relative humidity of 81%.

What is the month with the highest UV index in Jamestown?

Months with the highest UV index in Jamestown are May through August, with an average maximum UV index of 5.

When it does not snow in Jamestown?

In Jamestown, New York, snow does not fall in June through September.

When are the longest days in Jamestown?

The month with the longest days is June, with an average of 15.2h of daylight.

What is the warmest month in Jamestown?

The warmest month in Jamestown, New York, is July, with an average high-temperature of 75.9°F (24.4°C) and an average low-temperature of 59.4°F (15.2°C).

What is the month with the most sunshine in Jamestown?

Months with the most sunshine are July and August, with an average of 10h of sunshine.

What is the driest month in Jamestown?

September is the month with the least rainfall in Jamestown, New York. Rain falls for 14.3 days and accumulates 1.81" (46mm) of precipitation.

What is the wettest month in Jamestown?

October is the month with the most rainfall in Jamestown, New York. Rain falls for 17.2 days and accumulates 2.83" (72mm) of precipitation.

What is the snowiest month in Jamestown?

December is the month with the most snowfall in Jamestown, New York. Snow falls for 17.1 days and accumulates 7.68" (195mm) of snow.

What is the month with the shortest days in Jamestown?

With an average of 9.2h of daylight, December has the shortest days of the year in Jamestown.

Average temperature
Jamestown, NY

Average temperature - Jamestown, NY

The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is January (28°F).

The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).

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Average pressure
Jamestown, NY

Average pressure - Jamestown, NY

The month with the highest atmospheric pressure is November (30.1").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed
Jamestown, NY

Average wind speed - Jamestown, NY

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).

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Average humidity
Jamestown, NY

Average humidity - Jamestown, NY

The month with the highest relative humidity is February (89%).
Months with the lowest relative humidity are April, May and September (81%).

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Average rainfall
Jamestown, NY

Average rainfall - Jamestown, NY

The wettest month (with the highest rainfall) is October (2.83").
The driest month (with the least rainfall) is September (1.81").

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Average rainfall days
Jamestown, NY

Average rainfall days - Jamestown, NY

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (6.9 days).

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Average snowfall
Jamestown, NY

Average snowfall - Jamestown, NY

The month with the highest snowfall is December (7.68").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Jamestown, NY

Average snowfall days - Jamestown, NY

The month with the highest number of snowfall days is January (20.7 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Jamestown, NY

Average daylight / Average sunshine - Jamestown, NY

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

Months with the most sunshine are July and August (Average sunshine: 10h).
The month with the least sunshine is January (Average sunshine: 2.3h).

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Average sunshine days
Jamestown, NY

Average sunshine days - Jamestown, NY

The month with the most sunshine days is September (12.5 days).
The month with the least sunshine days is January (5.6 days).

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Average visibility
Jamestown, NY

Average visibility - Jamestown, NY

Months with the highest visibility are April, May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (4mi).

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