Harrisburg
Pennsylvania, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
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
January, like December, in Harrisburg, Pennsylvania, is another cold winter month, with temperature in the range of an average high of 35.1°F (1.7°C) and an average low of 22.1°F (-5.5°C). With an average high-temperature of 35.1°F (1.7°C) and an average low-temperature of 22.1°F (-5.5°C), January is the coldest month. Weather in January »

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

The first month of the spring, March, is a frosty month in Harrisburg, Pennsylvania, with temperature in the range of an average high of 47.8°F (8.8°C) and an average low of 31.6°F (-0.2°C). In March, the average high-temperature rises, from a wintry 38.3°F (3.5°C) in February, to a frosty 47.8°F (8.8°C). Weather in March »

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

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

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

July, the same as June, is a moderately hot summer month in Harrisburg, Pennsylvania, with average temperature varying between 63.5°F (17.5°C) and 83.8°F (28.8°C). July is the warmest month, with an average high-temperature of 83.8°F (28.8°C) and an average low-temperature of 63.5°F (17.5°C). The average heat index in July is appraised at a tropical 92.1°F (33.4°C). Weather in July »

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

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

October, like September, in Harrisburg, Pennsylvania, is another comfortable autumn month, with average temperature ranging between max 62.8°F (17.1°C) and min 46°F (7.8°C). In Harrisburg, Pennsylvania, the average high-temperature decreases, from a moderately hot 74.3°F (23.5°C) in September, to a comfortable 62.8°F (17.1°C). Weather in October »

November, the last month of the autumn, in Harrisburg, is also a fresh month, with average temperature varying between 50°F (10°C) and 35.2°F (1.8°C). In Harrisburg, the average high-temperature in November decreases, from a comfortable 62.8°F (17.1°C) in October, to a cool 50°F (10°C). Weather in November »

The first month of the winter, December, is also a wintry month in Harrisburg, Pennsylvania, with average temperature ranging between max 41°F (5°C) and min 29.7°F (-1.3°C). In Harrisburg, Pennsylvania, the average high-temperature drops, from a cool 50°F (10°C) in November, to a cold 41°F (5°C). Weather in December »

What is the coldest month in Harrisburg?

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

How many days does it rain in Harrisburg?

Throughout the year, in Harrisburg, Pennsylvania, there are 122.3 rainfall days, and 11.73" (298mm) of precipitation is accumulated.

What is the driest month in Harrisburg?

Months with the least rainfall in Harrisburg, Pennsylvania, are January and February Rain falls for 5.7 days and accumulates 0.71" (18mm) of rain.

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?

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

What is the most humid month in Harrisburg?

The most humid month is February, with an average relative humidity of 80%.

When does it snow the most in Harrisburg?

The month with the most snowfall in Harrisburg, Pennsylvania, is February when snow falls for 5.6 days and typically aggregates up to 1.3" (33mm) of snow.

What is the month with the least sunshine in Harrisburg?

The month with the least sunshine in Harrisburg, Pennsylvania, is February, with an average of 4.5h of sunshine.

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.

When it does not snow in Harrisburg?

In Harrisburg snow does not fall in May through October.

When is the highest UV index in Harrisburg?

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

When are the longest days in Harrisburg?

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

What is the warmest month in Harrisburg?

The warmest month is July, with an average high-temperature of 83.8°F (28.8°C) and an average low-temperature of 63.5°F (17.5°C).

What month has the most sunshine in Harrisburg?

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

What is the wettest month in Harrisburg?

The month with the most rainfall in Harrisburg, Pennsylvania, is August when the rain falls for 12.3 days and typically aggregates up to 1.3" (33mm) of precipitation.

What is the month with the shortest days in Harrisburg?

December has the shortest days of the year, with an average of 9.4h of daylight.
Average temperature - Harrisburg, PA
Average humidity - Harrisburg, PA
Average rainfall - Harrisburg, PA

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

Average rainfall days - Harrisburg, PA

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

Average snowfall - Harrisburg, PA
Average snowfall days - Harrisburg, PA

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

Average daylight / Average sunshine - Harrisburg, PA
Average UV index - Harrisburg, PA