Climate and monthly weather forecast
Jamestown, PA

Share

Weather in January

January, like December, is a freezing cold winter month in Jamestown, Pennsylvania, with an average temperature fluctuating between 18.1°F (-7.7°C) and 30.6°F (-0.8°C). Temperature records mark January as the coldest month, with highs averaging 30.6°F (-0.8°C) and lows at 18.1°F (-7.7°C). Weather in January »

Weather in February

The last month of the winter, February, is a wintry month in Jamestown, Pennsylvania, with temperature in the range of an average low of 19.8°F (-6.8°C) and an average high of 34.3°F (1.3°C). A minor adjustment in Jamestown's average high-temperature is noted with the start of February, touching a wintry 34.3°F (1.3°C) from January's 30.6°F (-0.8°C). Weather in February »

Weather in March

March, the first month of the spring in Jamestown, is a chilly month, with temperature in the range of an average low of 27.9°F (-2.3°C) and an average high of 44.2°F (6.8°C). Jamestown sees a rise in temperature during March, with average high-temperatures transitioning from an icy 34.3°F (1.3°C) in February to a frosty 44.2°F (6.8°C). Weather in March »

Weather in April

April in Jamestown, Pennsylvania, is a refreshing spring month, with an average temperature ranging between min 37.9°F (3.3°C) and max 56.8°F (13.8°C). Jamestown experiences a temperature shift with the start of April, with average high-temperatures moving from a chilly 44.2°F (6.8°C) in March to a mild 56.8°F (13.8°C). Weather in April »

Weather in May

May, the last month of the spring in Jamestown, is an agreeable month, with an average temperature ranging between min 48.6°F (9.2°C) and max 69.3°F (20.7°C). The start of May brings a rise in the average high-temperature, moving from a moderate 56.8°F (13.8°C) in April to a pleasant 69.3°F (20.7°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Jamestown, Pennsylvania, with an average temperature fluctuating between 76.5°F (24.7°C) and 55.4°F (13°C). With the onset of June, Jamestown's average high-temperature sees a modest rise, moving from May's agreeable 69.3°F (20.7°C) to a warm 76.5°F (24.7°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Jamestown, Pennsylvania, with an average temperature ranging between max 80.8°F (27.1°C) and min 59.5°F (15.3°C). July is the month when Jamestown experiences its warmest temperatures, averaging a high of 80.8°F (27.1°C) and a low of 59.5°F (15.3°C). The heat index value during July is evaluated at a hot 86°F (30°C). Weather in July »

Weather in August

August, the last month of the summer in Jamestown, is also a moderately hot month, with an average temperature ranging between min 58.3°F (14.6°C) and max 79.3°F (26.3°C). Jamestown starts August with an average high-temperature of a still moderately hot 79.3°F (26.3°C), a minor shift from July's 80.8°F (27.1°C). Weather in August »

Weather in September

September, the first month of the autumn in Jamestown, is also an agreeable month, with an average temperature fluctuating between 53.4°F (11.9°C) and 72.7°F (22.6°C). September sees a slight reduction in average high-temperature, with a shift from a moderately hot 79.3°F (26.3°C) in August to an agreeable 72.7°F (22.6°C). Weather in September »

Weather in October

October, like September, is another mild autumn month in Jamestown, Pennsylvania, with an average temperature varying between 59.7°F (15.4°C) and 43.9°F (6.6°C). Jamestown's progression into October includes a drop in the average high-temperature, from a pleasant 72.7°F (22.6°C) in September to a refreshing 59.7°F (15.4°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Jamestown, Pennsylvania, with an average temperature ranging between min 32.7°F (0.4°C) and max 46.8°F (8.2°C). A decrease in the average high-temperature is observed during November, shifting from a mild 59.7°F (15.4°C) in October to a frosty 46.8°F (8.2°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Jamestown, Pennsylvania, with an average temperature fluctuating between 37°F (2.8°C) and 26.4°F (-3.1°C). The transition into December involves a decrease in the average high-temperature, falling from a frosty 46.8°F (8.2°C) in November to an icy 37°F (2.8°C). Weather in December »
[Resources]

Frequently asked questions

What is the coldest time of year in Jamestown?

January, with average temperatures reaching a high of 30.6°F (-0.8°C) and a low of 18.1°F (-7.7°C), is the coldest month in Jamestown, Pennsylvania.

How much does it rain in Jamestown?

Throughout the year, there are 167.1 rainfall days, and 24.25" (616mm) of precipitation is accumulated.

When does it snow in Jamestown?

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

When does it snow the most in Jamestown?

January is the month with the most snowfall in Jamestown. Snow falls for 19.9 days and accumulates 6.38" (162mm) of snow.

How many days does it snow in Jamestown?

In Jamestown, during the entire year, snow falls for 79.6 days and aggregates up to 25" (635mm) of snow.

What is the month with the least sunshine in Jamestown?

The month with the least sunshine is January, with an average of 2.4h of sunshine.

What is the most humid month in Jamestown?

The most humid month in Jamestown, Pennsylvania, is February, with an average relative humidity of 89%.

When is Daylight Saving Time (DST) in Jamestown?

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

What are the least humid months in Jamestown?

The months with the lowest humidity are May through July, with an average relative humidity of 79%.

When it does not snow in Jamestown?

June through September are months without snowfall in Jamestown.

When are the longest days in Jamestown?

June has the longest days of the year, with an average of 15h and 6min of daylight.

What is the hottest time of year in Jamestown?

The month of July sees the average highest temperatures, reaching 80.8°F (27.1°C) at the peak and 59.5°F (15.3°C) at the low.

What are the months with the most sunshine in Jamestown?

The months with the most sunshine in Jamestown, Pennsylvania, are July and August, with an average of 9.9h of sunshine.

When is the highest UV index in Jamestown?

The month with the highest UV index in Jamestown, Pennsylvania, is July, with an average maximum UV index of 6.

What is the driest month in Jamestown?

September is the month with the least rainfall. Rain falls for 13.8 days and accumulates 1.57" (40mm) of precipitation.

What is the wettest month in Jamestown?

October is the month with the most rainfall. Rain falls for 16.7 days and accumulates 2.52" (64mm) of precipitation.

What is the month with the shortest days in Jamestown?

The month with the shortest days in Jamestown is December, with an average of 9h and 12min of daylight.

When is the lowest UV index in Jamestown?

With an average maximum UV index of 1, December is the month with the lowest UV index.

Average temperature
Jamestown, PA

Average temperature - Jamestown, PA

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.6°F).

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).

[Resources]

Average pressure
Jamestown, PA

Average pressure - Jamestown, PA

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

[Resources]

Average wind speed
Jamestown, PA

Average wind speed - Jamestown, PA

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is July (5.1mph).

[Resources]

Average humidity
Jamestown, PA

Average humidity - Jamestown, PA

The month with the highest relative humidity is February (89%).
The months with the lowest relative humidity are May, June and July (79%).

[Resources]

Average rainfall
Jamestown, PA

Average rainfall - Jamestown, PA

The wettest month (with the highest rainfall) is October (2.52").
The driest month (with the least rainfall) is September (1.57").

[Resources]

Average rainfall days
Jamestown, PA

Average rainfall days - Jamestown, PA

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is January (8 days).

[Resources]

Average snowfall
Jamestown, PA

Average snowfall - Jamestown, PA

The month with the highest snowfall is January (6.38").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days
Jamestown, PA

Average snowfall days - Jamestown, PA

The month with the highest number of snowfall days is January (19.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight / Average sunshine
Jamestown, PA

Average daylight / Average sunshine - Jamestown, PA

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).

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

[Resources]

Average sunshine days
Jamestown, PA

Average sunshine days - Jamestown, PA

The month with the most sunshine days is August (12.6 days).
The month with the least sunshine days is February (6.3 days).

[Resources]

Average visibility
Jamestown, PA

Average visibility - Jamestown, PA

The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).

[Resources]

Jamestown, Pennsylvania, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location