October weather forecastPorters Mill, PA

October

Weather in October

October, like September, in Porters Mill, Pennsylvania, is another refreshing autumn month, with an average temperature fluctuating between 47.5°F (8.6°C) and 63°F (17.2°C).

Temperature

With the onset of October, Porters Mill experiences a modest temperature adjustment, with the average high-temperature receding from a moderately hot 75.2°F (24°C) in September to a comfortable 63°F (17.2°C). The nighttime temperature, during October, averages of 47.5°F (8.6°C).

Humidity

The months with the highest humidity are February and October, with an average relative humidity of 80%.

Rainfall

In Porters Mill, in October, during 11.4 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. In Porters Mill, during the entire year, the rain falls for 146.5 days and collects up to 27.87" (708mm) of precipitation.

Snowfall

In Porters Mill, snow does not fall in May through October.

Daylight

In October, the average length of the day in Porters Mill is 11h and 8min.
On the first day of the month, sunrise is at 6:59 am and sunset at 6:44 pm. On the last day of October, sunrise is at 7:31 am and sunset at 6:00 pm EDT.

Sunshine

The average sunshine in October is 5.5h.

UV index

In Porters Mill, Pennsylvania, the average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 3 during October leads to these advisories:
Undertake precautions - Guarding against sun damage is counselled. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In October, the average high-temperature and low-temperature are 63°F (17.2°C) and 47.5°F (8.6°C) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is computed to be 87.8°F (31°C).

The months with the highest humidity are February and October, with an average relative humidity of 80%.

In October, the average relative humidity in Porters Mill, Pennsylvania, is 80%.

In October, in Porters Mill, the rain falls for 11.4 days. Throughout October, 2.13" (54mm) of precipitation is accumulated.

In Porters Mill, Pennsylvania, snow does not fall in May through October.

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

The average day length in October is 11h and 8min.

In October, on the first day of the month, sunrise is at 6:59 am and sunset at 6:44 pm. On the last day of the month, in Porters Mill, Pennsylvania, sunrise is at 7:31 am and sunset at 6:00 pm EDT.

In Porters Mill, Pennsylvania, the average sunshine duration in October is 5.5h.

In October, the average daily maximum UV index in Porters Mill is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Porters Mill, PA

  • Average high temperature in October: 63°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in October: 47.5°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

Average pressure in October
Porters Mill, PA

  • Average pressure in October: 30.03"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in October
Porters Mill, PA

  • Average wind speed in October: 6.6mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in October
Porters Mill, PA

  • Average humidity in October: 80%

The months with the highest relative humidity are February and October (80%).
The months with the lowest relative humidity are April and July (75%).

Average rainfall in October
Porters Mill, PA

  • Average rainfall in October: 2.13"

The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is September (1.81").

Average rainfall days in October
Porters Mill, PA

  • Average rainfall days in October: 11.4 days

The months with the highest number of rainy days are May and July (17 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in October
Porters Mill, PA

  • Average snowfall in October: 0"

The month with the highest snowfall is March (3.7").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in October
Porters Mill, PA

  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in October /
Average sunshine in October
Porters Mill, PA

  • Average daylight in October: 11h and 6min

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 24min).

  • Average sunshine in October: 5h and 30min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in October
Porters Mill, PA

  • Average sunshine days in October: 18.1 days

The month with the most sunshine days is November (21 days).
The month with the least sunshine days is May (12.3 days).

Average UV index in October
Porters Mill, PA

  • Average UV index in October: 3

The months with the highest UV index are May, June, July and August (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
Porters Mill, PA

  • Average cloud cover in October: 43

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in October
Porters Mill, PA

  • Average visibility in October: 6mi

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).