October 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

Weather in October

October, like September, in Harrisburg, Pennsylvania, is another enjoyable autumn month, with average temperature fluctuating between 62.8°F (17.1°C) and 46°F (7.8°C).

Temperature

In October, 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). The average low-temperature, is 46°F (7.8°C).

Humidity

In October, the average relative humidity in Harrisburg, Pennsylvania, is 79%.

Rainfall

In October, the rain falls for 9.7 days. Throughout October, 1.06" (27mm) of precipitation is accumulated. In Harrisburg, during the entire year, the rain falls for 122.3 days and collects up to 11.73" (298mm) of precipitation.

Snowfall

In Harrisburg snow does not fall in May through October.

Daylight

In Harrisburg, the average length of the day is 11.1h.

Sunshine

In Harrisburg, the average sunshine in October is 5.4h.

UV index

In Harrisburg, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 3 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in October in Harrisburg?

The average high-temperature, in October, is 62.8°F (17.1°C), while the average low-temperature is 46°F (7.8°C).

What is the average humidity in October in Harrisburg?

In Harrisburg, the average relative humidity in October is 79%.

How much does it rain in Harrisburg in October?

In October, in Harrisburg, Pennsylvania, the rain falls for 9.7 days. Throughout October, 1.06" (27mm) of precipitation is accumulated.

Does it snow in Harrisburg in October?

In Harrisburg, Pennsylvania, in October, it doesn't snow. In November, it regularly snows.

When it does not snow in Harrisburg?

May through October are months without snowfall.

What is the average length of the day in October in Harrisburg?

The average length of the day in October is 11.1h.

How many hours of sunshine does Harrisburg have in October?

In October, the average sunshine is 5.4h.

What is the UV index intensity in October in Harrisburg?

The average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in October
Harrisburg, PA

Average temperature in October - Harrisburg, PA
  • Average high temperature in October: 62.8°F

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).

  • Average low temperature in October: 46°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 in October
Harrisburg, PA

Average pressure in October - Harrisburg, PA
  • Average pressure in October: 30.04"

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

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Average wind speed in October
Harrisburg, PA

Average wind speed in October - Harrisburg, PA
  • Average wind speed in October: 6.6mph

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 in October
Harrisburg, PA

Average humidity in October - Harrisburg, PA
  • Average humidity in October: 79%

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

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Average rainfall in October
Harrisburg, PA

Average rainfall in October - Harrisburg, PA
  • Average rainfall in October: 1.06"

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 in October
Harrisburg, PA

Average rainfall days in October - Harrisburg, PA
  • Average rainfall days in October: 9.7 days

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 in October
Harrisburg, PA

Average snowfall in October - Harrisburg, PA
  • Average snowfall in October: 0"

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

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Average snowfall days in October
Harrisburg, PA

Average snowfall days in October - Harrisburg, PA
  • Average snowfall days in October: 0 days

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

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Average daylight in October /
Average sunshine in October
Harrisburg, PA

Average daylight in October / Average sunshine in October - Harrisburg, PA
  • Average daylight in October: 11.1h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in October: 5.4h

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 in October
Harrisburg, PA

Average sunshine days in October - Harrisburg, PA
  • Average sunshine days in October: 19.5 days

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 in October
Harrisburg, PA

Average UV index in October - Harrisburg, PA
  • Average UV index in October: 3

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

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Average cloud cover in October
Harrisburg, PA

Average cloud cover in October - Harrisburg, PA
  • Average cloud cover in October: 42

Months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in October
Harrisburg, PA

Average visibility in October - Harrisburg, PA
  • Average visibility in October: 6mi

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

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