Climate and monthly weather forecast
Harrisburg, PA

A church, a mosque, and other buildings along State Street in Harrisburg, Pennsylvania
A church, a mosque, and other buildings along State Street in Harrisburg, Pennsylvania

Weather in January

January, like December, in Harrisburg, Pennsylvania, is another cold winter month, with an average temperature ranging between min 22.1°F (-5.5°C) and max 35.1°F (1.7°C). January is the coldest month, with an average high-temperature of 35.1°F (1.7°C) and an average low-temperature of 22.1°F (-5.5°C). Weather in January »

Weather in February

February, the last month of the winter in Harrisburg, is another cold month, with an average temperature fluctuating between 38.3°F (3.5°C) and 23.9°F (-4.5°C). In February, the average high-temperature is relatively the same as in January - a still cold 38.3°F (3.5°C). Weather in February »

Weather in March

March, the first month of the spring in Harrisburg, is a chilly month, with an average temperature varying between 47.8°F (8.8°C) and 31.6°F (-0.2°C). In March, the average high-temperature increases from a cold 38.3°F (3.5°C) in February to a chilly 47.8°F (8.8°C). Weather in March »

Weather in April

April in Harrisburg, Pennsylvania, is a mild spring month, with temperature in the range of an average low of 41.7°F (5.4°C) and an average high of 60.1°F (15.6°C). In Harrisburg, Pennsylvania, the average high-temperature in April increases from a chilly 47.8°F (8.8°C) in March to a moderate 60.1°F (15.6°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Harrisburg, Pennsylvania, with an average temperature ranging between max 70.3°F (21.3°C) and min 51.4°F (10.8°C). In Harrisburg, the average high-temperature in May rises from a mild 60.1°F (15.6°C) in April to an agreeable 70.3°F (21.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Harrisburg, Pennsylvania, with an average temperature fluctuating between 58.6°F (14.8°C) and 78.1°F (25.6°C). In June, the average high-temperature marginally rises from an agreeable 70.3°F (21.3°C) in May to a moderately hot 78.1°F (25.6°C). Weather in June »

Weather in July

July, like June, in Harrisburg, Pennsylvania, is a moderately hot summer month, with an average temperature fluctuating between 63.5°F (17.5°C) and 83.8°F (28.8°C). With an average high-temperature of 83.8°F (28.8°C) and an average low-temperature of 63.5°F (17.5°C), July is the warmest month. In July, the average heat index is calculated to be a tropical 92.1°F (33.4°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Harrisburg, Pennsylvania, with an average temperature ranging between max 81.5°F (27.5°C) and min 61.9°F (16.6°C). In Harrisburg, Pennsylvania, the average high-temperature in August is essentially the same as in July - a still warm 81.5°F (27.5°C). Weather in August »

Weather in September

September, the first month of the autumn in Harrisburg, is still a warm month, with an average temperature ranging between min 55.6°F (13.1°C) and max 74.3°F (23.5°C). In September, the average high-temperature marginally drops from a moderately hot 81.5°F (27.5°C) in August to a still warm 74.3°F (23.5°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Harrisburg, Pennsylvania, with an average temperature varying between 62.8°F (17.1°C) and 46°F (7.8°C). In October, the average high-temperature decreases from a moderately hot 74.3°F (23.5°C) in September to an enjoyable 62.8°F (17.1°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Harrisburg, Pennsylvania, with temperature in the range of an average high of 50°F (10°C) and an average low of 35.2°F (1.8°C). In November, the average high-temperature drops from a comfortable 62.8°F (17.1°C) in October to a fresh 50°F (10°C). Weather in November »

Weather in December

December, the first month of the winter in Harrisburg, is still a cold month, with an average temperature varying between 41°F (5°C) and 29.7°F (-1.3°C). In December, the average high-temperature drops from a cool 50°F (10°C) in November to a cold 41°F (5°C). Weather in December »
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FAQ

What is the coldest month in Harrisburg?

January is the coldest month in Harrisburg, Pennsylvania, with an average high-temperature of 35.1°F (1.7°C) and an average low-temperature of 22.1°F (-5.5°C).

What is the driest month in Harrisburg?

January and February are months with the least rain when the rain falls for 5.7 days and typically aggregates up to 0.71" (18mm) of rain.

How much does it rain in Harrisburg?

In Harrisburg, Pennsylvania, during the entire year, the rain falls for 122.3 days and collects up to 11.73" (298mm) of precipitation.

When does it snow in Harrisburg?

Months with snowfall in Harrisburg, Pennsylvania, are January through April, November and December.

How much does it snow in Harrisburg?

Throughout the year, in Harrisburg, there are 19.9 snowfall days, and 4.29" (109mm) of snow is accumulated.

What is the month with the lowest UV index in Harrisburg?

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

What is the most humid month in Harrisburg?

February is the most humid month in Harrisburg, with an average relative humidity of 80%.

When does it snow the most in Harrisburg?

February is the month with the most snowfall in Harrisburg. Snow falls for 5.6 days and accumulates 1.3" (33mm) of snow.

What is the month with the least sunshine in Harrisburg?

With an average of 4.5h of sunshine, February has the least sunshine of the year in Harrisburg.

What is the least humid month in Harrisburg?

March and April, with an average relative humidity of 75%, are the least humid months in Harrisburg, Pennsylvania.

When is Daylight Saving Time (DST) in Harrisburg?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Harrisburg, 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 Harrisburg?

In Harrisburg, snow does not fall in May through October.

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

May through July, with an average maximum UV index of 6, are months with the highest UV index.

When are the longest days in Harrisburg?

With an average of 15h and 0min of daylight, June has the longest days of the year in Harrisburg, Pennsylvania.

What is the warmest month in Harrisburg?

With an average high-temperature of 83.8°F (28.8°C) and an average low-temperature of 63.5°F (17.5°C), July is the warmest month in Harrisburg, Pennsylvania.

What month has the most sunshine in Harrisburg?

The month with the most sunshine is July, with an average of 10.5h of sunshine.

What is the rainiest month in Harrisburg?

August is the month with the most rainfall in Harrisburg, Pennsylvania. Rain falls for 12.3 days and accumulates 1.3" (33mm) of precipitation.

What is the month with the shortest days in Harrisburg?

With an average of 9h and 22min of daylight, December has the shortest days of the year.

Average temperature
Harrisburg, PA

Average temperature - Harrisburg, PA

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.1°F).

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).

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Average pressure
Harrisburg, PA

Average pressure - Harrisburg, 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
Harrisburg, PA

Average wind speed - Harrisburg, PA

The windiest month (with the highest average wind speed) is March (8.2mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

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Average humidity
Harrisburg, PA

Average humidity - Harrisburg, PA

The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are March and April (75%).

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Average rainfall
Harrisburg, PA

Average rainfall - Harrisburg, PA

The wettest month (with the highest rainfall) is August (1.3").
The driest months (with the least rainfall) are January and February (0.71").

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Average rainfall days
Harrisburg, PA

Average rainfall days - Harrisburg, PA

The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (5.7 days).

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Average snowfall
Harrisburg, PA

Average snowfall - Harrisburg, PA

The month with the highest snowfall is February (1.3").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days
Harrisburg, PA

Average snowfall days - Harrisburg, PA

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Harrisburg, PA

Average daylight / Average sunshine - Harrisburg, 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 22min).

The month with the most sunshine is July (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.5h).

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Average sunshine days
Harrisburg, PA

Average sunshine days - Harrisburg, PA

The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is July (14.1 days).

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Average UV index
Harrisburg, PA

Average UV index - Harrisburg, PA

The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average visibility
Harrisburg, PA

Average visibility - Harrisburg, PA

The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).

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