October weather forecast
Swarthmore, PA

Weather in October

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

Temperature

In Swarthmore, the average high-temperature in October decreases from a warm 76.6°F (24.8°C) in September to an enjoyable 64.9°F (18.3°C). In October, the average low-temperature is 50.7°F (10.4°C).

Humidity

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

Rainfall

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

Snowfall

In Swarthmore, Pennsylvania, snow does not fall in June through October.

Daylight

In Swarthmore, the average length of the day in October is 11h and 8min.
On the first day of October, sunrise is at 6:57 am and sunset at 6:44 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 6:00 pm EDT.

Sunshine

In October, the average sunshine is 5.7h.

UV index

In Swarthmore, the average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 3 in October interpret into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in October in Swarthmore?

In October, in Swarthmore, Pennsylvania, the average high-temperature is 64.9°F (18.3°C), and the average low-temperature is 50.7°F (10.4°C). 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, in August is computed to be 89.6°F (32°C).

What is the most humid month in Swarthmore?

February, October and December, with an average relative humidity of 77%, are most humid months in Swarthmore, Pennsylvania.

What is the average humidity in October in Swarthmore?

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

How many days does it rain in October in Swarthmore?

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

When it does not snow in Swarthmore?

In Swarthmore, Pennsylvania, snow does not fall in June through October.

Does it snow in Swarthmore in October?

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

How many hours of daylight does Swarthmore have in October?

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

When are sunrise and sunset in October in Swarthmore?

On the first day of October, sunrise is at 6:57 am and sunset at 6:44 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 6:00 pm EDT.

How long on average sun shines in October in Swarthmore?

In October, the average sunshine duration is 5.7h.

What is the UV index reading in October in Swarthmore?

In October, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
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 8min

The month with the longest days is June (Average daylight: 14h and 58min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in October: 5h and 42min

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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