October weather forecast
Duncannon, PA

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Weather in October

October, the same as September, is another enjoyable autumn month in Duncannon, Pennsylvania, with an average temperature fluctuating between 62.4°F (16.9°C) and 45.5°F (7.5°C).

Temperature

As October commences, the average high-temperature shows a reduction, transitioning from a moderately hot 74.3°F (23.5°C) in September to a refreshing 62.4°F (16.9°C). In Duncannon, the average temperature during the nights of October drops to a chilly 45.5°F (7.5°C).

Humidity

In Duncannon, the average relative humidity in October is 79%.

Rainfall

In Duncannon, during October, the rain falls for 13.5 days and regularly aggregates up to 2.68" (68mm) of precipitation. Throughout the year, there are 161.8 rainfall days, and 30.71" (780mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow. In Duncannon, during the entire year, snow falls for 28.8 days and aggregates up to 15.67" (398mm) of snow.

Daylight

In October, the average length of the day is 11h and 7min.
On the first day of October, sunrise is at 7:05 am and sunset at 6:49 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 6:05 pm EDT.

Sunshine

In Duncannon, the average sunshine in October is 5.4h.

UV index

In October, the average daily maximum UV index 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: A maximum high daily UV index of 3 during October translates into the following directions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. To cut down UV radiation exposure by about half, sport a wide-brim hat. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.

Frequently asked questions

What is the usual temperature for Duncannon in October?

During October, Duncannon experiences an average high-temperature of 62.4°F (16.9°C) and a low-temperature of 45.5°F (7.5°C). The average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, in August is evaluated at 87.8°F (31°C).

What is the average humidity in October?

In Duncannon, the average relative humidity in October is 79%.

How much does it rain in October?

In Duncannon, during October, the rain falls for 13.5 days and regularly aggregates up to 2.68" (68mm) of precipitation.

When does it start snowing?

October is the first month it typically snows. Throughout October, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow.

How many hours of daylight does Duncannon have in October?

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

When are sunrise and sunset in October?

On the first day of October, sunrise is at 7:05 am and sunset at 6:49 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 6:05 pm EDT.

How long on average sun shines in October?

In October, the average sunshine duration is 5.4h.

What is the UV index reading in October?

The average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a moderate health threat 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
Duncannon, PA

Average temperature in October - Duncannon, PA
  • Average high temperature in October: 62.4°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in October: 45.5°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in October
Duncannon, PA

Average pressure in October - Duncannon, 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
Duncannon, PA

Average wind speed in October - Duncannon, PA
  • Average wind speed in October: 6.4mph

The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in October
Duncannon, PA

Average humidity in October - Duncannon, PA
  • Average humidity in October: 79%

The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are March and April (75%).

Average rainfall in October
Duncannon, PA

Average rainfall in October - Duncannon, PA
  • Average rainfall in October: 2.68"

The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is January (2.13").

Average rainfall days in October
Duncannon, PA

Average rainfall days in October - Duncannon, PA
  • Average rainfall days in October: 13.5 days

The month with the highest number of rainy days is May (18.3 days).
The months with the least rainy days are January and February (8.8 days).

Average snowfall in October
Duncannon, PA

Average snowfall in October - Duncannon, PA
  • Average snowfall in October: 0.12"

The month with the highest snowfall is January (4.57").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
Duncannon, PA

Average snowfall days in October - Duncannon, PA
  • Average snowfall days in October: 0.1 days

The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in October / Average sunshine in October - Duncannon, 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 2min

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

Average sunshine days in October
Duncannon, PA

Average sunshine days in October - Duncannon, PA
  • Average sunshine days in October: 15.5 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (10.4 days).

Average UV index in October
Duncannon, PA

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

The months with the highest UV index are May, June and 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
Duncannon, PA

Average cloud cover in October - Duncannon, PA
  • Average cloud cover in October: 43

The months with the most cloud cover are February and December (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in October
Duncannon, PA

Average visibility in October - Duncannon, PA
  • Average visibility in October: 6mi

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

Duncannon, Pennsylvania, USA

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