October weather forecast
Port Royal, PA

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Weather in October

October, the same as September, is another refreshing autumn month in Port Royal, Pennsylvania, with an average temperature varying between 43.7°F (6.5°C) and 61.5°F (16.4°C).

Temperature

In October, the meteorological conditions alter, with the average high-temperature shifting from a moderately hot 74.1°F (23.4°C) in September to a comfortable 61.5°F (16.4°C). During October, Port Royal records a consistent average nighttime temperature of 43.7°F (6.5°C).

Humidity

In Port Royal, the average relative humidity in October is 80%.

Rainfall

In Port Royal, Pennsylvania, in October, it is raining for 13.1 days, with typically 2.4" (61mm) of accumulated precipitation. Throughout the year, there are 162 rainfall days, and 28.86" (733mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow. In Port Royal, during the entire year, snow falls for 35.2 days and aggregates up to 16.42" (417mm) of snow.

Daylight

The average length of the day in October is 11h and 7min.
On the first day of the month, sunrise is at 7:06 am and sunset at 6:51 pm. On the last day of October, sunrise is at 7:39 am and sunset at 6:07 pm EDT.

Sunshine

In October, the average sunshine is 5.2h.

UV index

In October, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 3 during October translates into the following directions:
Adopt protective measures - Suggestions to resist sunburn are offered. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Updated: Jul 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are October temperatures?

In October, the average high-temperature and low-temperature in Port Royal are 61.5°F (16.4°C) and 43.7°F (6.5°C) respectively. In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is estimated at 86°F (30°C).

What is the average humidity in October?

In October, the average relative humidity in Port Royal is 80%.

How many days does it rain in October?

In October, the rain falls for 13.1 days. Throughout October, 2.4" (61mm) of precipitation is accumulated.

When does it start to snow?

October is the first month it typically snows. Throughout October, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow.

What is the average length of the day in October?

The average day length in October is 11h and 7min.

When is the sunrise / sunset in October?

On the first day of October, sunrise is at 7:06 am and sunset at 6:51 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 6:07 pm EDT.

How long on average sun shines in October?

The average sunshine duration in October is 5.2h.

What is the UV index intensity in October?

The average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Port Royal, PA

Average temperature in October - Port Royal, PA
  • Average high temperature in October: 61.5°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (32.9°F).

  • Average low temperature in October: 43.7°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).

Average pressure in October
Port Royal, PA

Average pressure in October - Port Royal, PA
  • Average pressure in October: 30.04"Hg

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

Average wind speed in October
Port Royal, PA

Average wind speed in October - Port Royal, PA
  • Average wind speed in October: 6mph

The windiest month (with the highest average wind speed) is January (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in October
Port Royal, PA

Average humidity in October - Port Royal, PA
  • Average humidity in October: 80%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is July (75%).

Average rainfall in October
Port Royal, PA

Average rainfall in October - Port Royal, PA
  • Average rainfall in October: 2.4"

The wettest month (with the highest rainfall) is May (3.31").
The driest months (with the least rainfall) are January and November (1.85").

Average rainfall days in October
Port Royal, PA

Average rainfall days in October - Port Royal, PA
  • Average rainfall days in October: 13.1 days

The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (8.8 days).

Average snowfall in October
Port Royal, PA

Average snowfall in October - Port Royal, PA
  • Average snowfall in October: 0.08"

The month with the highest snowfall is January (4.49").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
Port Royal, PA

Average snowfall days in October - Port Royal, PA
  • Average snowfall days in October: 0.1 days

The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
Port Royal, PA

Average daylight in October / Average sunshine in October - Port Royal, PA
  • Average daylight in October: 11h and 1min

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 18min).

  • Average sunshine in October: 5h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in October
Port Royal, PA

Average sunshine days in October - Port Royal, PA
  • Average sunshine days in October: 16.1 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (10.4 days).

Average UV index in October
Port Royal, PA

Average UV index in October - Port Royal, PA
  • Average UV index in October: 3

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

Average cloud cover in October
Port Royal, PA

Average cloud cover in October - Port Royal, PA
  • Average cloud cover in October: 46

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in October
Port Royal, PA

Average visibility in October - Port Royal, PA
  • Average visibility in October: 5mi

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

Port Royal, Pennsylvania, USA

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