October weather forecast
Grassmere Park, PA

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Weather in October

October, like September, is a moderate autumn month in Grassmere Park, Pennsylvania, with an average temperature fluctuating between 43.9°F (6.6°C) and 59.9°F (15.5°C).

Temperature

The onset of October coincides with a reduction in the average high-temperature, falling from a pleasant 72.5°F (22.5°C) in September to a moderate 59.9°F (15.5°C). In October, the recorded average low-temperature is a chilly 43.9°F (6.6°C).

Humidity

In Grassmere Park, the average relative humidity in October is 82%.

Rainfall

In Grassmere Park, in October, during 14 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. Throughout the year, there are 166.3 rainfall days, and 31.06" (789mm) 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 0.2 snowfall days, it receives 0.35" (9mm) of snow. Throughout the year, there are 47.6 snowfall days, and 22.91" (582mm) of snow is accumulated.

Daylight

In Grassmere Park, the average length of the day in October is 11h and 5min.
On the first day of the month, sunrise is at 7:02 am and sunset at 6:46 pm. On the last day of October, sunrise is at 7:36 am and sunset at 6:01 pm EDT.

Sunshine

In Grassmere Park, the average sunshine in October is 5.1h.

UV index

In Grassmere Park, the average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: An average maximum UV index of 3 in October leads to these recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Updated: Jun 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in October in Grassmere Park?

In Grassmere Park, 59.9°F (15.5°C) is the average high-temperature and 43.9°F (6.6°C) is the average low-temperature during October. In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 87.8°F (31°C).

What is the average humidity in October?

In Grassmere Park, the average relative humidity in October is 82%.

How many days does it rain in October?

In Grassmere Park, in October, it is raining for 14 days, with typically 2.68" (68mm) of accumulated precipitation.

When does it start to snow?

October is the first month it typically snows. Throughout October, in the average 0.2 snowfall days, it receives 0.35" (9mm) of snow.

How many hours of daylight does Grassmere Park have in October?

In Grassmere Park, the average day length in October is 11h and 5min.

When are sunrise and sunset in October?

On the first day of October, sunrise is at 7:02 am and sunset at 6:46 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 6:01 pm EDT.

How long on average sun shines in October?

In Grassmere Park, the average sunshine duration in October is 5.1h.

What is the UV index reading in October?

In Grassmere Park, the average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Grassmere Park, PA

Average temperature in October - Grassmere Park, PA
  • Average high temperature in October: 59.9°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.8°F).

  • Average low temperature in October: 43.9°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (19°F).

Average pressure in October
Grassmere Park, PA

Average pressure in October - Grassmere Park, PA
  • Average pressure in October: 30.03"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in October
Grassmere Park, PA

Average wind speed in October - Grassmere Park, PA
  • Average wind speed in October: 6.6mph

The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in October
Grassmere Park, PA

Average humidity in October - Grassmere Park, PA
  • Average humidity in October: 82%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).

Average rainfall in October
Grassmere Park, PA

Average rainfall in October - Grassmere Park, PA
  • Average rainfall in October: 2.68"

The wettest months (with the highest rainfall) are April and May (2.99").
The driest month (with the least rainfall) is September (2.05").

Average rainfall days in October
Grassmere Park, PA

Average rainfall days in October - Grassmere Park, PA
  • Average rainfall days in October: 14 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (9.3 days).

Average snowfall in October
Grassmere Park, PA

Average snowfall in October - Grassmere Park, PA
  • Average snowfall in October: 0.35"

The month with the highest snowfall is January (5.94").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
Grassmere Park, PA

Average snowfall days in October - Grassmere Park, PA
  • Average snowfall days in October: 0.2 days

The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
Grassmere Park, PA

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

The month with the longest days is June (Average daylight: 15h and 6min).
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 12min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).

Average sunshine days in October
Grassmere Park, PA

Average sunshine days in October - Grassmere Park, PA
  • Average sunshine days in October: 12.9 days

The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is February (9.8 days).

Average UV index in October
Grassmere Park, PA

Average UV index in October - Grassmere Park, PA
  • Average UV index in October: 3

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in October
Grassmere Park, PA

Average cloud cover in October - Grassmere Park, PA
  • Average cloud cover in October: 47

The months with the most cloud cover are February and December (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 35).

Average visibility in October
Grassmere Park, PA

Average visibility in October - Grassmere Park, 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).

Grassmere Park, Pennsylvania, USA

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