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

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
October, the same as September, is another enjoyable autumn month in Harrisburg, Pennsylvania, with average temperature ranging between min 44.6°F (7°C) and max 64°F (17.8°C).

Temperature

In Harrisburg, the average high-temperature decreases, from a warm 75.6°F (24.2°C) in September, to a comfortable 64°F (17.8°C). The average low-temperature, in October, is 44.6°F (7°C).

Humidity

The average relative humidity in October is 70.5%.

Rainfall

In Harrisburg, during 8.8 rainfall days, 3.3" (83.1mm) of precipitation is typically accumulated. In Harrisburg, during the entire year, the rain falls for 122 days and collects up to 40.7" (1034.8mm) of precipitation.

Snowfall

May through October are months without snowfall in Harrisburg.

Daylight

The average length of the day in Harrisburg, Pennsylvania, is 11.1h.

Sunshine

The average sunshine is 6.4h.

UV index

In October, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to the UV radiation for ordinary individuals.
Note: The daily maximum UV index of 4 interpret into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in October in Harrisburg?

In October, in Harrisburg, the average high-temperature is 64°F (17.8°C), and the average low-temperature is 44.6°F (7°C).

What is the average humidity in October in Harrisburg?

In October, the average relative humidity in Harrisburg, Pennsylvania, is 70.5%.

How many days does it rain in October in Harrisburg?

In Harrisburg, Pennsylvania, during October, the rain falls for 8.8 days and regularly aggregates up to 3.3" (83.1mm) of precipitation.

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 in Harrisburg.

How many hours of daylight does Harrisburg have in October?

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

How long on average sun shines in October in Harrisburg?

The average sunshine in October in Harrisburg, Pennsylvania, is 6.4h.

What is the UV index intensity in October in Harrisburg?

The average daily maximum UV index in October in Harrisburg is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from the exposure to the Sun's UV radiation.
Average temperature in October - Harrisburg, PA
  • Average high temperature in October: 64.1°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in October: 44.6°F

The month with the highest average low temperature is July (66.3°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).

Average humidity in October - Harrisburg, PA
  • Average humidity in October: 70.5%

The month with the highest relative humidity is September (73.8%).
The month with the lowest relative humidity is April (59.2%).

Average rainfall in October - Harrisburg, PA
  • Average rainfall in October: 3.3"

The wettest month (with the highest rainfall) is July (4.6").
The driest month (with the lowest rainfall) is February (2.4").

Average rainfall days in October - Harrisburg, PA
  • Average rainfall days in October: 8.8 days

The month with the highest number of rainy days is May (12.2 days).
The month with the lowest number of rainy days is October (8.8 days).

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

The month with the highest snowfall is February (10.5").
Months with the lowest snowfall are May, June, July, August, September and October (0").

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 (5.2 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

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 shortest days is December (Average daylight: 9.4h).

  • Average sunshine in October: 6.4h

The month with most sunshine is July (Average sunshine: 10h).
The month with least sunshine is December (Average sunshine: 4.1h).

Average UV index in October - Harrisburg, PA
  • Average UV index in October: 4

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January, November and December (UV index 2).