October weather forecast and climate
Williamstown, NJ

Weather in October

October, like September, in Williamstown, New Jersey, is another comfortable autumn month, with average temperature varying between 51.3°F (10.7°C) and 65.3°F (18.5°C).

Temperature

In October, the average high-temperature decreases, from a warm 76.5°F (24.7°C) in September, to an enjoyable 65.3°F (18.5°C). The average low-temperature, in October, is 51.3°F (10.7°C).

Humidity

October is the most humid month in Williamstown, with an average relative humidity of 78%.

Rainfall

In October, in Williamstown, the rain falls for 12.1 days. Throughout October, 2.6" (66mm) of precipitation is accumulated. In Williamstown, during the entire year, the rain falls for 154.9 days and collects up to 30.47" (774mm) of precipitation.

Snowfall

In Williamstown, New Jersey, snow does not fall in June through October.

Daylight

The average length of the day in Williamstown, New Jersey, is 11.1h.

Sunshine

In Williamstown, the average sunshine is 5.8h.

UV index

The average daily maximum UV index in Williamstown is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to the Sun's UV rays for the average person.
Note: In October, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in October in Williamstown?

In Williamstown, in October, the average high-temperature is 65.3°F (18.5°C), and the average low-temperature is 51.3°F (10.7°C).

What is the most humid month in Williamstown?

The most humid month in Williamstown is October, with an average relative humidity of 78%.

What is the average humidity in October in Williamstown?

The average relative humidity in October in Williamstown, New Jersey, is 78%.

How much does it rain in Williamstown in October?

In Williamstown, in October, during 12.1 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

Does it snow in Williamstown in October?

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

When it does not snow in Williamstown?

In Williamstown, New Jersey, snow does not fall in June through October.

How many hours of daylight does Williamstown have in October?

In October, the average length of the day in Williamstown, New Jersey, is 11.1h.

How long on average sun shines in October in Williamstown?

In Williamstown, the average sunshine in October is 5.8h.

How high is the UV index in October in Williamstown?

The average daily maximum UV index in October in Williamstown, New Jersey, is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV rays.

Average temperature in October
Williamstown, NJ

Average temperature in October - Williamstown, NJ
  • Average high temperature in October: 65.3°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in October: 51.3°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

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Average pressure in October
Williamstown, NJ

Average pressure in October - Williamstown, NJ
  • Average pressure in October: 30.03"

The month with the highest atmospheric pressure is November (30.12").
The month with the lowest atmospheric pressure is June (29.94").

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Average wind speed in October
Williamstown, NJ

Average wind speed in October - Williamstown, NJ
  • Average wind speed in October: 7.3mph

The windiest month (with the highest average wind speed) is April (8.7mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in October
Williamstown, NJ

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

The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in October
Williamstown, NJ

Average rainfall in October - Williamstown, NJ
  • Average rainfall in October: 2.6"

The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (1.73").

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Average rainfall days in October
Williamstown, NJ

Average rainfall days in October - Williamstown, NJ
  • Average rainfall days in October: 12.1 days

The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is January (8.8 days).

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Average snowfall in October
Williamstown, NJ

Average snowfall in October - Williamstown, NJ
  • Average snowfall in October: 0"

The month with the highest snowfall is March (3.54").
Months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in October
Williamstown, NJ

Average snowfall days in October - Williamstown, NJ
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is January (5.5 days).
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
Williamstown, NJ

Average daylight in October / Average sunshine in October - Williamstown, NJ
  • Average daylight in October: 11.1h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in October: 5.8h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is February (Average sunshine: 4.9h).

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Average sunshine days in October
Williamstown, NJ

Average sunshine days in October - Williamstown, NJ
  • Average sunshine days in October: 16.9 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.8 days).

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Average UV index in October
Williamstown, NJ

Average UV index in October - Williamstown, NJ
  • Average UV index in October: 4

Months with the highest UV index are May, June, July and August (UV index 6).
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, NJ

Average cloud cover in October - Williamstown, NJ
  • Average cloud cover in October: 40

Months with the most cloud cover are February and March (Cloud cover 46).
Months with the least cloud cover are July and August (Cloud cover 30).

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Average visibility in October
Williamstown, NJ

Average visibility in October - Williamstown, NJ
  • Average visibility in October: 6mi

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

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