October weather forecast
Chatham, NJ

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Weather in October

October, like September, in Chatham, New Jersey, is another enjoyable autumn month, with an average temperature ranging between min 47.5°F (8.6°C) and max 62.2°F (16.8°C).

Temperature

As October commences, the average high-temperature shows a reduction, transitioning from a warm 74.5°F (23.6°C) in September to a comfortable 62.2°F (16.8°C). The nighttime temperature dips to a frosty 47.5°F (8.6°C) on average during October.

Humidity

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

Rainfall

In Chatham, in October, it is raining for 14.1 days, with typically 2.99" (76mm) of accumulated precipitation. In Chatham, during the entire year, the rain falls for 164.2 days and collects up to 30.67" (779mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. 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 Chatham, during the entire year, snow falls for 26 days and aggregates up to 11.61" (295mm) of snow.

Daylight

In Chatham, the average length of the day in October is 11h and 7min.
On the first day of October, sunrise is at 6:54 am and sunset at 6:39 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:54 pm EDT.

Sunshine

In October, the average sunshine is 5.6h.

UV index

The average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: In October, an average UV index of 3 transforms into the following instructions:
Make use of precautions - Suggestions to resist sunburn are communicated. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Updated: Jun 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Chatham in October?

The high-temperature during October is 62.2°F (16.8°C) and the low-temperature is 47.5°F (8.6°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is estimated at 87.8°F (31°C).

What is the average humidity in October?

The average relative humidity in October is 79%.

How many days does it rain in October?

In Chatham, New Jersey, in October, it is raining for 14.1 days, with typically 2.99" (76mm) of accumulated precipitation.

When does it start to snow?

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 Chatham have in October?

In Chatham, the average day length in October is 11h and 7min.

What time are sunrise and sunset in October?

In October, on the first day of the month, sunrise is at 6:54 am and sunset at 6:39 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:54 pm EDT.

How many hours of sunshine does Chatham have in October?

The average sunshine duration in October is 5.6h.

What is the UV index intensity in October?

In Chatham, the average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
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
Chatham, NJ

Average temperature in October - Chatham, NJ
  • Average high temperature in October: 62.2°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 (35.1°F).

  • Average low temperature in October: 47.5°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in October
Chatham, NJ

Average pressure in October - Chatham, NJ
  • Average pressure in October: 30.02"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in October
Chatham, NJ

Average wind speed in October - Chatham, NJ
  • Average wind speed in October: 7mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in October
Chatham, NJ

Average humidity in October - Chatham, NJ
  • Average humidity in October: 79%

The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are April and August (74%).

Average rainfall in October
Chatham, NJ

Average rainfall in October - Chatham, NJ
  • Average rainfall in October: 2.99"

The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in October
Chatham, NJ

Average rainfall days in October - Chatham, NJ
  • Average rainfall days in October: 14.1 days

The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is January (8.8 days).

Average snowfall in October
Chatham, NJ

Average snowfall in October - Chatham, NJ
  • Average snowfall in October: 0.12"

The month with the highest snowfall is March (3.5").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
Chatham, NJ

Average snowfall days in October - Chatham, NJ
  • Average snowfall days in October: 0.1 days

The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
Chatham, NJ

Average daylight in October / Average sunshine in October - Chatham, NJ
  • 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 4min

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 36min).

Average sunshine days in October
Chatham, NJ

Average sunshine days in October - Chatham, NJ
  • Average sunshine days in October: 15.5 days

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (10.5 days).

Average UV index in October
Chatham, NJ

Average UV index in October - Chatham, NJ
  • 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, March, November and December (UV index 2).

Average cloud cover in October
Chatham, NJ

Average cloud cover in October - Chatham, NJ
  • Average cloud cover in October: 43

The months with the most cloud cover are February and March (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).

Average visibility in October
Chatham, NJ

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

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

Chatham, New Jersey, USA

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