October weather forecast
Forest Grove, PA

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Weather in October

October, like September, in Forest Grove, Pennsylvania, is another comfortable autumn month, with an average temperature fluctuating between 48.2°F (9°C) and 63.5°F (17.5°C).

Temperature

The commencement of October involves a temperature shift, with the average high-temperature dropping from a warm 76.1°F (24.5°C) in September to an enjoyable 63.5°F (17.5°C). In October, Forest Grove records an average nighttime temperature of 48.2°F (9°C).

Humidity

The months with the highest humidity are February and October, with an average relative humidity of 79%.

Rainfall

In Forest Grove, in October, it is raining for 12.6 days, with typically 2.44" (62mm) of accumulated precipitation. Throughout the year, there are 158.6 rainfall days, and 28.31" (719mm) 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 0.04" (1mm) of snow. Throughout the year, in Forest Grove, there are 24.6 snowfall days, and 10.24" (260mm) of snow is accumulated.

Daylight

In Forest Grove, the average length of the day in October is 11h and 7min.
On the first day of the month, sunrise is at 6:57 am and sunset at 6:41 pm. On the last day of October, sunrise is at 7:29 am and sunset at 5:58 pm EDT.

Sunshine

In October, the average sunshine is 5.6h.

UV index

In Forest Grove, 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 exposure to the Sun's UV rays for the average person.
Note: During October, 3 as the daily maximum UV index converts into the following advice:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in October?

In October, the average high-temperature and low-temperature are 63.5°F (17.5°C) and 48.2°F (9°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in August is computed to be 89.6°F (32°C).

What are the most humid months in Forest Grove?

The months with the highest humidity are February and October, with an average relative humidity of 79%.

What is the average humidity in October?

In October, the average relative humidity is 79%.

How many days does it rain in October?

In October, the rain falls for 12.6 days. Throughout October, 2.44" (62mm) of precipitation is accumulated.

When does it start snowing?

October is the first month it typically snows. Throughout October, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

What is the average length of the day in October in Forest Grove?

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

When are sunrise and sunset in October?

In October, on the first day of the month, sunrise is at 6:57 am and sunset at 6:41 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:58 pm EDT.

How long on average sun shines in October?

In Forest Grove, the average sunshine duration in October is 5.6h.

How high is the UV index in October in Forest Grove?

In Forest Grove, the average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Forest Grove, PA

Average temperature in October - Forest Grove, PA
  • Average high temperature in October: 63.5°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in October: 48.2°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure in October
Forest Grove, PA

Average pressure in October - Forest Grove, 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
Forest Grove, PA

Average wind speed in October - Forest Grove, PA
  • Average wind speed in October: 6.7mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in October
Forest Grove, PA

Average humidity in October - Forest Grove, PA
  • Average humidity in October: 79%

The months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (73%).

Average rainfall in October
Forest Grove, PA

Average rainfall in October - Forest Grove, PA
  • Average rainfall in October: 2.44"

The wettest month (with the highest rainfall) is July (2.87").
The driest month (with the least rainfall) is September (1.65").

Average rainfall days in October
Forest Grove, PA

Average rainfall days in October - Forest Grove, PA
  • Average rainfall days in October: 12.6 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.7 days).

Average snowfall in October
Forest Grove, PA

Average snowfall in October - Forest Grove, PA
  • Average snowfall in October: 0.04"

The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
Forest Grove, PA

Average snowfall days in October - Forest Grove, PA
  • Average snowfall days in October: 0.1 days

The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
Forest Grove, PA

Average daylight in October / Average sunshine in October - Forest Grove, 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 4min

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
Forest Grove, PA

Average sunshine days in October - Forest Grove, PA
  • Average sunshine days in October: 15.8 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (11 days).

Average UV index in October
Forest Grove, PA

Average UV index in October - Forest Grove, 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
Forest Grove, PA

Average cloud cover in October - Forest Grove, PA
  • Average cloud cover in October: 42

The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in October
Forest Grove, PA

Average visibility in October - Forest Grove, 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).

Forest Grove, Pennsylvania, USA

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