Climate and monthly weather forecast
Penn, PA

Weather in January

January, the same as December, is another cold winter month in Penn, Pennsylvania, with temperature in the range of an average low of 20.5°F (-6.4°C) and an average high of 32.9°F (0.5°C). With an average high-temperature of 32.9°F (0.5°C) and an average low-temperature of 20.5°F (-6.4°C), January is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Penn, is also a wintry month, with an average temperature ranging between min 23°F (-5°C) and max 37°F (2.8°C). In February, the average high-temperature is practically the same as in January - a still cold 37°F (2.8°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Penn, Pennsylvania, with an average temperature fluctuating between 30.7°F (-0.7°C) and 46.9°F (8.3°C). In Penn, the average high-temperature in March increases from a wintry 37°F (2.8°C) in February to a chilly 46.9°F (8.3°C). Weather in March »

Weather in April

April is a moderate spring month in Penn, Pennsylvania, with temperature in the range of an average low of 40.6°F (4.8°C) and an average high of 59.7°F (15.4°C). In April, the average high-temperature rises from a chilly 46.9°F (8.3°C) in March to a moderate 59.7°F (15.4°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Penn, Pennsylvania, with temperature in the range of an average low of 50°F (10°C) and an average high of 71.1°F (21.7°C). In Penn, the average high-temperature in May rises from a moderate 59.7°F (15.4°C) in April to an agreeable 71.1°F (21.7°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Penn, Pennsylvania, with an average temperature varying between 56.7°F (13.7°C) and 77.7°F (25.4°C). In Penn, the average high-temperature in June slightly increases from a pleasant 71.1°F (21.7°C) in May to a moderately hot 77.7°F (25.4°C). Weather in June »

Weather in July

July, like June, in Penn, Pennsylvania, is a moderately hot summer month, with an average temperature varying between 82.6°F (28.1°C) and 61.2°F (16.2°C). With an average high-temperature of 82.6°F (28.1°C) and an average low-temperature of 61.2°F (16.2°C), July is the warmest month. The average heat index in July is appraised at a hot 89.6°F (32°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Penn, Pennsylvania, with temperature in the range of an average low of 59.2°F (15.1°C) and an average high of 81.1°F (27.3°C). In Penn, the average high-temperature in August is essentially the same as in July - a still warm 81.1°F (27.3°C). Weather in August »

Weather in September

September, the first month of the autumn in Penn, is still a warm month, with an average temperature varying between 74.5°F (23.6°C) and 54.5°F (12.5°C). In September, the average high-temperature marginally drops from a moderately hot 81.1°F (27.3°C) in August to a still warm 74.5°F (23.6°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Penn, Pennsylvania, with temperature in the range of an average high of 61.5°F (16.4°C) and an average low of 44.6°F (7°C). In October, the average high-temperature decreases from a moderately hot 74.5°F (23.6°C) in September to an enjoyable 61.5°F (16.4°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Penn, Pennsylvania, with an average temperature ranging between min 33.6°F (0.9°C) and max 48.9°F (9.4°C). In November, the average high-temperature drops from a comfortable 61.5°F (16.4°C) in October to a frosty 48.9°F (9.4°C). Weather in November »

Weather in December

December, the first month of the winter in Penn, is still a cold month, with an average temperature varying between 39°F (3.9°C) and 27.7°F (-2.4°C). In Penn, the average high-temperature in December drops from a frosty 48.9°F (9.4°C) in November to a cold 39°F (3.9°C). Weather in December »
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FAQ

What is the coldest month in Penn?

The coldest month in Penn is January, with an average high-temperature of 32.9°F (0.5°C) and an average low-temperature of 20.5°F (-6.4°C).

What is the most humid month in Penn?

January and February, with an average relative humidity of 85%, are most humid months in Penn, Pennsylvania.

How much does it rain in Penn?

In Penn, Pennsylvania, during the entire year, the rain falls for 183.8 days and collects up to 35.16" (893mm) of precipitation.

When does it snow in Penn?

January through May, October through December are months with snowfall in Penn, Pennsylvania.

What is the snowiest month in Penn?

The month with the most snowfall in Penn, Pennsylvania, is January, when snow falls for 18.2 days and typically aggregates up to 7.05" (179mm) of snow.

How many days does it snow in Penn?

Throughout the year, in Penn, there are 65 snowfall days, and 28.98" (736mm) of snow is accumulated.

What is the month with the least sunshine in Penn?

With an average of 2.9h of sunshine, January has the least sunshine of the year in Penn, Pennsylvania.

When is Daylight Saving Time (DST) in Penn?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in Penn, Pennsylvania, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from EDT to EST.

What is the least humid month in Penn?

The months with the lowest humidity are April, July and August, with an average relative humidity of 77%.

What is the wettest month in Penn?

May is the month with the most rainfall. Rain falls for 20.1 days and accumulates 3.78" (96mm) of precipitation.

When it does not snow in Penn?

In Penn, Pennsylvania, snow does not fall in June through September.

When are the longest days in Penn?

June has the longest days of the year, with an average of 15h and 0min of daylight.

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

The months with the highest UV index in Penn are June and July, with an average maximum UV index of 6.

What is the warmest month in Penn?

With an average high-temperature of 82.6°F (28.1°C) and an average low-temperature of 61.2°F (16.2°C), July is the warmest month.

What month has the most sunshine in Penn?

The month with the most sunshine in Penn is August, with an average of 10.1h of sunshine.

What is the driest month in Penn?

November is the month with the least rainfall. Rain falls for 11.7 days and accumulates 2.09" (53mm) of precipitation.

What is the month with the shortest days in Penn?

The month with the shortest days is December, with an average of 9h and 21min of daylight.

When is the lowest UV index in Penn?

The month with the lowest UV index in Penn is December, with an average maximum UV index of 1.

Average pressure
Penn, PA

Average pressure - Penn, PA

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed
Penn, PA

Average wind speed - Penn, PA

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity
Penn, PA

Average humidity - Penn, PA

The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, July and August (77%).

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Average rainfall
Penn, PA

Average rainfall - Penn, PA

The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is November (2.09").

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Average rainfall days
Penn, PA

Average rainfall days - Penn, PA

The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is January (9.5 days).

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Average snowfall
Penn, PA

Average snowfall - Penn, PA

The month with the highest snowfall is January (7.05").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Penn, PA

Average snowfall days - Penn, PA

The month with the highest number of snowfall days is January (18.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Penn, PA

Average daylight / Average sunshine - Penn, PA

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 21min).

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

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Average sunshine days
Penn, PA

Average sunshine days - Penn, PA

The month with the most sunshine days is November (14 days).
The month with the least sunshine days is February (6.7 days).

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