October weather forecast
Southwest, PA

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Weather in October

October, the same as September, is another enjoyable autumn month in Southwest, Pennsylvania, with an average temperature fluctuating between 44.8°F (7.1°C) and 61.3°F (16.3°C).

Temperature

Southwest's weather in October involves a decrease in the average high-temperature, moving down from September's moderately hot 74.3°F (23.5°C) to an enjoyable 61.3°F (16.3°C). During the nights in October, Southwest experiences a consistent average temperature of 44.8°F (7.1°C).

Humidity

In October, the average relative humidity is 81%.

Rainfall

In Southwest, Pennsylvania, during October, the rain falls for 16.2 days and regularly aggregates up to 2.87" (73mm) of precipitation. Throughout the year, there are 185.4 rainfall days, and 34.02" (864mm) 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 0.6 snowfall days, it receives 0.79" (20mm) of snow. In Southwest, Pennsylvania, during the entire year, snow falls for 63.2 days and aggregates up to 29.02" (737mm) of snow.

Daylight

In October, the average length of the day is 11h and 7min.
On the first day of October, sunrise is at 7:15 am and sunset at 6:59 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 6:16 pm EDT.

Sunshine

In October, the average sunshine in Southwest is 5.3h.

UV index

In October, the average daily maximum UV index in Southwest is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 3 during October leads to these advisories:
Take precautions - Protection against skin and eye damage is obliged. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in October in Southwest?

October temperatures vary between a high-temperature of 61.3°F (16.3°C) and a low-temperature of 44.8°F (7.1°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, is computed to be 84.2°F (29°C).

What is the average humidity in October?

The average relative humidity in October is 81%.

How many days does it rain in October in Southwest?

In Southwest, during October, the rain falls for 16.2 days and regularly aggregates up to 2.87" (73mm) of precipitation.

When does it start to snow?

October is the first month it typically snows. Throughout October, in the average 0.6 snowfall days, it receives 0.79" (20mm) of snow.

How many hours of daylight does Southwest have in October?

In Southwest, the average day length in October is 11h and 7min.

When is the sunrise / sunset in October?

In October, on the first day of the month, sunrise is at 7:15 am and sunset at 6:59 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 6:16 pm EDT.

How many hours of sunshine does Southwest have in October?

In Southwest, the average sunshine duration in October is 5.3h.

What is the UV index reading in October?

In October, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from 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
Southwest, PA

Average temperature in October - Southwest, PA
  • Average high temperature in October: 61.3°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.3°F).

  • Average low temperature in October: 44.8°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in October
Southwest, PA

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

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in October
Southwest, PA

Average wind speed in October - Southwest, PA
  • Average wind speed in October: 6.5mph

The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in October
Southwest, PA

Average humidity in October - Southwest, PA
  • Average humidity in October: 81%

The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, July and August (77%).

Average rainfall in October
Southwest, PA

Average rainfall in October - Southwest, PA
  • Average rainfall in October: 2.87"

The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is November (2.01").

Average rainfall days in October
Southwest, PA

Average rainfall days in October - Southwest, PA
  • Average rainfall days in October: 16.2 days

The month with the highest number of rainy days is May (22 days).
The month with the least rainy days is January (9.8 days).

Average snowfall in October
Southwest, PA

Average snowfall in October - Southwest, PA
  • Average snowfall in October: 0.79"

The month with the highest snowfall is January (7.09").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
Southwest, PA

Average snowfall days in October - Southwest, PA
  • Average snowfall days in October: 0.6 days

The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in October / Average sunshine in October - Southwest, 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 24min).

  • Average sunshine in October: 5h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in October
Southwest, PA

Average sunshine days in October - Southwest, PA
  • Average sunshine days in October: 12.4 days

The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is January (6.5 days).

Average UV index in October
Southwest, PA

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

The month with the highest UV index is July (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
Southwest, PA

Average cloud cover in October - Southwest, PA
  • Average cloud cover in October: 47

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in October
Southwest, PA

Average visibility in October - Southwest, PA
  • Average visibility in October: 5mi

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).

Southwest, Pennsylvania, USA

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