October weather forecast
Swarthmore, PA

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Weather in October

October, the same as September, is another enjoyable autumn month in Swarthmore, Pennsylvania, with an average temperature fluctuating between 50.7°F (10.4°C) and 64.9°F (18.3°C).

Temperature

October suggests a modest reduction in the average high-temperature, shifting from a warm 76.6°F (24.8°C) in September to a comfortable 64.9°F (18.3°C). An average low-temperature of 50.7°F (10.4°C) is expected in Swarthmore during October.

Humidity

The months with the highest humidity are February, October and December, with an average relative humidity of 77%.

Rainfall

In Swarthmore, in October, during 11.7 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. Throughout the year, there are 148.4 rainfall days, and 25.94" (659mm) of precipitation is accumulated.

Snowfall

June through October are months without snowfall in Swarthmore.

Daylight

In Swarthmore, the average length of the day in October is 11h and 8min.
On the first day of the month, sunrise is at 6:58 am and sunset at 6:43 pm. On the last day of October, in Swarthmore, sunrise is at 7:29 am and sunset at 5:59 pm EDT.

Sunshine

In Swarthmore, the average sunshine in October is 5.7h.

UV index

In October, the average daily maximum UV index in Swarthmore, Pennsylvania, is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In October, a daily maximum UV index of 3 leads to the following instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
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Frequently asked questions

What are the temperatures in Swarthmore in October?

In Swarthmore, in October, the average high-temperature is 64.9°F (18.3°C), and the average low-temperature is 50.7°F (10.4°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is estimated at 89.6°F (32°C).

What are the most humid months in Swarthmore?

The months with the highest humidity in Swarthmore are February, October and December, with an average relative humidity of 77%.

What is the average humidity in October in Swarthmore?

In Swarthmore, Pennsylvania, the average relative humidity in October is 77%.

How many days does it rain in October in Swarthmore?

In October, in Swarthmore, the rain falls for 11.7 days. Throughout October, 1.97" (50mm) of precipitation is accumulated.

When it does not snow in Swarthmore?

June through October are months without snowfall in Swarthmore, Pennsylvania.

Does it snow in Swarthmore in October?

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

What is the average length of the day in October in Swarthmore?

In October, the average day length is 11h and 8min.

When are sunrise and sunset in October in Swarthmore?

In October, on the first day of the month, sunrise is at 6:58 am and sunset at 6:43 pm. On the last day of the month, in Swarthmore, sunrise is at 7:29 am and sunset at 5:59 pm EDT.

How many hours of sunshine does Swarthmore have in October?

In October, the average sunshine duration in Swarthmore, Pennsylvania, is 5.7h.

What is the UV index reading in October in Swarthmore?

The average daily maximum UV index in October in Swarthmore, Pennsylvania, is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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
Swarthmore, PA

Average temperature in October - Swarthmore, PA
  • Average high temperature in October: 64.9°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in October: 50.7°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

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Average pressure in October
Swarthmore, PA

Average pressure in October - Swarthmore, 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).

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Average wind speed in October
Swarthmore, PA

Average wind speed in October - Swarthmore, PA
  • Average wind speed in October: 7.2mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in October
Swarthmore, PA

Average humidity in October - Swarthmore, PA
  • Average humidity in October: 77%

The months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in October
Swarthmore, PA

Average rainfall in October - Swarthmore, PA
  • Average rainfall in October: 1.97"

The wettest month (with the highest rainfall) is August (3.11").
The driest month (with the least rainfall) is January (1.61").

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Average rainfall days in October
Swarthmore, PA

Average rainfall days in October - Swarthmore, PA
  • Average rainfall days in October: 11.7 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (7.1 days).

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Average snowfall in October
Swarthmore, PA

Average snowfall in October - Swarthmore, PA
  • Average snowfall in October: 0"

The month with the highest snowfall is March (2.32").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in October
Swarthmore, PA

Average snowfall days in October - Swarthmore, PA
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in October / Average sunshine in October - Swarthmore, 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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in October
Swarthmore, PA

Average sunshine days in October - Swarthmore, PA
  • Average sunshine days in October: 17.5 days

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index in October
Swarthmore, PA

Average UV index in October - Swarthmore, 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, November and December (UV index 2).

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Average cloud cover in October
Swarthmore, PA

Average cloud cover in October - Swarthmore, PA
  • Average cloud cover in October: 40

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in October
Swarthmore, PA

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

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

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Swarthmore, Pennsylvania, USA

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