October weather forecast
Cornwall, CT

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Weather in October

October, like September, is another refreshing autumn month in Cornwall, Connecticut, with an average temperature ranging between max 59°F (15°C) and min 44.1°F (6.7°C).

Temperature

A subtle decrease in the average high-temperature marks October, falling from September's agreeable 72°F (22.2°C) to a moderate 59°F (15°C). An average minimum temperature of 44.1°F (6.7°C) is recorded in Cornwall during the month of October.

Humidity

In October, the average relative humidity is 81%.

Rainfall

In Cornwall, in October, during 13 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. Throughout the year, in Cornwall, there are 160.5 rainfall days, and 33.86" (860mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Cornwall are January through May, October through December. October is the first month it typically snows in Cornwall, Connecticut. Throughout October, in the average 0.6 snowfall days, it receives 0.55" (14mm) of snow. In Cornwall, Connecticut, during the entire year, snow falls for 40.2 days and aggregates up to 20.39" (518mm) of snow.

Daylight

In October, the average length of the day in Cornwall is 11h and 4min.
On the first day of October, sunrise is at 6:50 am and sunset at 6:34 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:48 pm EDT.

Sunshine

In Cornwall, the average sunshine in October is 5.5h.

UV index

In Cornwall, the average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 3 in October interprets into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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Frequently asked questions

What is the average October temperature in Cornwall?

In October, in Cornwall, the average high-temperature is 59°F (15°C), and the average low-temperature is 44.1°F (6.7°C). In July, the average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 86°F (30°C).

What is the average humidity in October in Cornwall?

In October, the average relative humidity in Cornwall, Connecticut, is 81%.

How much does it rain in Cornwall in October?

In Cornwall, Connecticut, in October, it is raining for 13 days, with typically 3.15" (80mm) of accumulated precipitation.

When does it start snowing in Cornwall?

October is the first month it typically snows in Cornwall, Connecticut. Throughout October, in the average 0.6 snowfall days, it receives 0.55" (14mm) of snow.

How many hours of daylight does Cornwall have in October?

In Cornwall, Connecticut, the average day length in October is 11h and 4min.

What time are sunrise and sunset in October in Cornwall?

In October, on the first day of the month, sunrise is at 6:50 am and sunset at 6:34 pm. On the last day of the month, in Cornwall, sunrise is at 7:25 am and sunset at 5:48 pm EDT.

How many hours of sunshine does Cornwall have in October?

In Cornwall, Connecticut, the average sunshine duration in October is 5.5h.

What is the UV index reading in October in Cornwall?

In October, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Cornwall, CT

Average temperature in October - Cornwall, CT
  • Average high temperature in October: 59°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.9°F).

  • Average low temperature in October: 44.1°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

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Average pressure in October
Cornwall, CT

Average pressure in October - Cornwall, CT
  • Average pressure in October: 30.01"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in October
Cornwall, CT

Average wind speed in October - Cornwall, CT
  • Average wind speed in October: 6.8mph

The windiest months (with the highest average wind speed) are January and March (8mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

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Average humidity in October
Cornwall, CT

Average humidity in October - Cornwall, CT
  • Average humidity in October: 81%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in October
Cornwall, CT

Average rainfall in October - Cornwall, CT
  • Average rainfall in October: 3.15"

The wettest month (with the highest rainfall) is July (3.54").
The driest month (with the least rainfall) is January (2.17").

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Average rainfall days in October
Cornwall, CT

Average rainfall days in October - Cornwall, CT
  • Average rainfall days in October: 13 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.7 days).

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Average snowfall in October
Cornwall, CT

Average snowfall in October - Cornwall, CT
  • Average snowfall in October: 0.55"

The month with the highest snowfall is February (5.16").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in October
Cornwall, CT

Average snowfall days in October - Cornwall, CT
  • Average snowfall days in October: 0.6 days

The month with the highest number of snowfall days is February (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in October /
Average sunshine in October
Cornwall, CT

Average daylight in October / Average sunshine in October - Cornwall, CT
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in October: 5h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

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Average sunshine days in October
Cornwall, CT

Average sunshine days in October - Cornwall, CT
  • Average sunshine days in October: 15.5 days

The month with the most sunshine days is January (16.8 days).
The month with the least sunshine days is June (10.8 days).

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Average UV index in October
Cornwall, CT

Average UV index in October - Cornwall, CT
  • Average UV index in October: 3

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in October
Cornwall, CT

Average cloud cover in October - Cornwall, CT
  • Average cloud cover in October: 47

The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 37).

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Average visibility in October
Cornwall, CT

Average visibility in October - Cornwall, CT
  • 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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Cornwall, Connecticut, USA

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