October weather forecast and climate
Summit, NJ

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

Temperature

In October, the average high-temperature drops, from a warm 74.5°F (23.6°C) in September, to an enjoyable 62.2°F (16.8°C). In October, in Summit, the average low-temperature is 47.5°F (8.6°C).

Humidity

In Summit, New Jersey, the average relative humidity is 79%.

Rainfall

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

Snowfall

January through May, October through December are months with snowfall in Summit. October is the first month it typically snows. Throughout October, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, in Summit, there are 26 snowfall days, and 11.61" (295mm) of snow is accumulated.

Daylight

The average length of the day in Summit is 11.1h.

Sunshine

In October, the average sunshine in Summit is 5.6h.

UV index

In Summit, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 3 in October interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in October in Summit?

In Summit, New Jersey, in October, the average high-temperature is 62.2°F (16.8°C), and the average low-temperature is 47.5°F (8.6°C).

What is the average humidity in October in Summit?

In Summit, New Jersey, the average relative humidity in October is 79%.

How much does it rain in Summit in October?

In Summit, 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 in Summit?

October is the first month it typically snows in Summit, New Jersey. Throughout October, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow.

How many hours of daylight does Summit have in October?

In Summit, the average length of the day in October is 11.1h.

How many hours of sunshine does Summit have in October?

The average sunshine in October is 5.6h.

What is the UV index reading in October in Summit?

The average daily maximum UV index in October in Summit is 3. A UV Index of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV rays.
Average temperature in October - Summit, 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 - Summit, NJ
  • Average pressure in October: 30.02"

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

Average wind speed in October - Summit, 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 - Summit, NJ
  • Average humidity in October: 79%

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

Average rainfall in October - Summit, 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 - Summit, 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 - Summit, NJ
  • Average snowfall in October: 0.12"

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

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

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

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

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in October: 5.6h

The month with the most sunshine is July (Average sunshine: 10.3h).
The month with the least sunshine is February (Average sunshine: 4.6h).

Average sunshine days in October - Summit, 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 - Summit, NJ
  • Average UV index in October: 3

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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

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

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

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).