October weather forecast
Williamstown, WV

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Weather in October

The cool fall season settles in with October temperatures swinging between 46°F (7.8°C) and 64.4°F (18°C). By this time the summer's heat has long since vanished, and the crisp autumn air dominates. The season's beauty is complemented by lower levels of humidity despite the presence of significant rainfall. Measured wind speeds usually reach 5.4mph (8.7km/h), adding a nippy sensation. November brings further decrease in temperatures, signifying the doorstep of winter.

Temperature

Williamstown observes a minor decrease in the average high-temperature with the arrival of October, falling from September's moderately hot 77.9°F (25.5°C) to a refreshing 64.4°F (18°C). The average temperature in Williamstown drops to a frosty 46°F (7.8°C) during the night in the month of October.

Humidity

The average relative humidity in October is 78%.

Rainfall

In Williamstown, West Virginia, in October, during 10.8 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. In Williamstown, during the entire year, the rain falls for 156.1 days and collects up to 24.8" (630mm) of precipitation.

Snowfall

Months with snowfall in Williamstown are January through April, October through December. October is the first month it typically snows. Throughout October, in the average 0.1 snowfall days, it receives 0.16" (4mm) of snow. Throughout the year, in Williamstown, there are 31.3 snowfall days, and 9.37" (238mm) of snow is accumulated.

Daylight

In Williamstown, the average length of the day in October is 11h and 9min.
On the first day of the month, sunrise is at 7:22 am and sunset at 7:07 pm. On the last day of October, in Williamstown, sunrise is at 7:53 am and sunset at 6:25 pm EDT.

Sunshine

In Williamstown, the average sunshine in October is 5.9h.

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 unprotected exposure to Sun's UV rays for the average person.
Note: In October, the maximum UV index of 3 translates into these guidelines:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Frequently asked questions

What are October temperatures in Williamstown?

The average high-temperature and low-temperature in Williamstown during October are 64.4°F (18°C) and 46°F (7.8°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in August is computed to be 93.2°F (34°C).

What is the average humidity in October in Williamstown?

In October, the average relative humidity in Williamstown is 78%.

How many days does it rain in October in Williamstown?

In Williamstown, West Virginia, in October, it is raining for 10.8 days, with typically 1.57" (40mm) of accumulated precipitation.

When does it start snowing in Williamstown?

October is the first month it typically snows in Williamstown. Throughout October, in the average 0.1 snowfall days, it receives 0.16" (4mm) of snow.

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

In Williamstown, the average day length in October is 11h and 9min.

When are sunrise and sunset in October in Williamstown?

On the first day of October in Williamstown, sunrise is at 7:22 am and sunset at 7:07 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 6:25 pm EDT.

How many hours of sunshine does Williamstown have in October?

In October, the average sunshine duration in Williamstown is 5.9h.

What is the UV index reading in October in Williamstown?

In Williamstown, West Virginia, the average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to 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
Williamstown, WV

Average temperature in October - Williamstown, WV
  • Average high temperature in October: 64.4°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 (36.1°F).

  • Average low temperature in October: 46°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 (22.8°F).

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Average pressure in October
Williamstown, WV

Average pressure in October - Williamstown, WV
  • Average pressure in October: 30.04"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in October
Williamstown, WV

Average wind speed in October - Williamstown, WV
  • Average wind speed in October: 5.4mph

The windiest month (with the highest average wind speed) is February (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in October
Williamstown, WV

Average humidity in October - Williamstown, WV
  • Average humidity in October: 78%

The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are June, July and August (76%).

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Average rainfall in October
Williamstown, WV

Average rainfall in October - Williamstown, WV
  • Average rainfall in October: 1.57"

The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (1.46").

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Average rainfall days in October
Williamstown, WV

Average rainfall days in October - Williamstown, WV
  • Average rainfall days in October: 10.8 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is November (8.4 days).

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Average snowfall in October
Williamstown, WV

Average snowfall in October - Williamstown, WV
  • Average snowfall in October: 0.16"

The month with the highest snowfall is February (2.8").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in October
Williamstown, WV

Average snowfall days in October - Williamstown, WV
  • Average snowfall days in October: 0.1 days

The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in October /
Average sunshine in October
Williamstown, WV

Average daylight in October / Average sunshine in October - Williamstown, WV
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in October: 5h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

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Average sunshine days in October
Williamstown, WV

Average sunshine days in October - Williamstown, WV
  • Average sunshine days in October: 18.4 days

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (9.8 days).

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Average UV index in October
Williamstown, WV

Average UV index in October - Williamstown, WV
  • Average UV index in October: 3

The months with the highest UV index are 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
Williamstown, WV

Average cloud cover in October - Williamstown, WV
  • Average cloud cover in October: 43

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in October
Williamstown, WV

Average visibility in October - Williamstown, WV
  • Average visibility in October: 5mi

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

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Williamstown, West Virginia, USA

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