October weather forecast
Darien, CT

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Weather in October

October, like September, in Darien, Connecticut, is another refreshing autumn month, with an average temperature fluctuating between 62.2°F (16.8°C) and 52.3°F (11.3°C).

Temperature

In Darien, entering October brings a temperature decrement, reducing from September's pleasant 73.2°F (22.9°C) to an enjoyable 62.2°F (16.8°C). In the month of October, the nighttime temperature in Darien dips to a steady average of 52.3°F (11.3°C).

Humidity

In Darien, the average relative humidity in October is 74%.

Rainfall

In Darien, Connecticut, in October, during 14.3 rainfall days, 3.54" (90mm) of precipitation is typically accumulated. Throughout the year, in Darien, Connecticut, there are 166.4 rainfall days, and 38.7" (983mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In Darien, the average length of the day in October is 11h and 5min.
On the first day of October, sunrise is at 6:51 am and sunset at 6:35 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:50 pm EDT.

Sunshine

The average sunshine in October is 5.8h.

UV index

In October, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index, 3 in October, converts into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
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Frequently asked questions

What are the temperatures in Darien in October?

In Darien, 62.2°F (16.8°C) is the average high-temperature and 52.3°F (11.3°C) is the average low-temperature during October. The average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, in July is computed to be 86°F (30°C).

What is the average humidity in October in Darien?

In October, the average relative humidity in Darien, Connecticut, is 74%.

How much does it rain in Darien in October?

In Darien, Connecticut, in October, it is raining for 14.3 days, with typically 3.54" (90mm) of accumulated precipitation.

When it does not snow in Darien?

In Darien, Connecticut, snow does not fall in May through October.

Does it snow in Darien in October?

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

How many hours of daylight does Darien have in October?

In October, the average day length is 11h and 5min.

When is the sunrise / sunset in October in Darien?

In October, on the first day of the month, sunrise is at 6:51 am and sunset at 6:35 pm. On the last day of the month, in Darien, sunrise is at 7:24 am and sunset at 5:50 pm EDT.

How many hours of sunshine does Darien have in October?

The average sunshine duration in October in Darien is 5.8h.

What is the UV index reading in October in Darien?

The average daily maximum UV index in October in Darien is 3. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Darien, CT

Average temperature in October - Darien, CT
  • Average high temperature in October: 62.2°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in October: 52.3°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

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Average pressure in October
Darien, CT

Average pressure in October - Darien, CT
  • Average pressure in October: 30.02"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in October
Darien, CT

Average wind speed in October - Darien, CT
  • Average wind speed in October: 9.1mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

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Average humidity in October
Darien, CT

Average humidity in October - Darien, CT
  • Average humidity in October: 74%

The month with the highest relative humidity is May (76%).
The months with the lowest relative humidity are April, August and November (72%).

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Average rainfall in October
Darien, CT

Average rainfall in October - Darien, CT
  • Average rainfall in October: 3.54"

The wettest months (with the highest rainfall) are July and December (4.17").
The driest month (with the least rainfall) is January (2.48").

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Average rainfall days in October
Darien, CT

Average rainfall days in October - Darien, CT
  • Average rainfall days in October: 14.3 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (8.8 days).

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Average snowfall in October
Darien, CT

Average snowfall in October - Darien, CT
  • Average snowfall in October: 0"

The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in October
Darien, CT

Average snowfall days in October - Darien, CT
  • Average snowfall days in October: 0.1 days

The month with the highest number of snowfall days is February (7.8 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
Darien, CT

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in October: 5h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in October
Darien, CT

Average sunshine days in October - Darien, CT
  • Average sunshine days in October: 14.7 days

The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is June (10.8 days).

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Average UV index in October
Darien, CT

Average UV index in October - Darien, CT
  • 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).

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Average cloud cover in October
Darien, CT

Average cloud cover in October - Darien, CT
  • Average cloud cover in October: 42

The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in October
Darien, CT

Average visibility in October - Darien, CT
  • Average visibility in October: 6mi

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

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Darien, Connecticut, USA

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