November weather forecast
Old Greenwich, CT

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Weather in November

As November rolls in, Old Greenwich begins to brace itself for the nearing winter. A significant drop in temperature, leading to a chilling low of 40.8°F (4.9°C), is a standard characteristic of Old Greenwich's November climate. The city experiences a tangible decrease in the hours of daylight, contributing to the overall cooler feel. With rainfall totals falling to 2.83" (72mm), November is somewhat drier than the previous month. The outdoor activities remain abundant, yet they tend to move indoors as people prepare for the winter nights.

Temperature

Old Greenwich's November weather features a mild decline in high-temperatures, reducing from a comfortable 62.4°F (16.9°C) in October to a cool 50.9°F (10.5°C). Old Greenwich encounters a steady low-temperature average of 40.8°F (4.9°C) throughout the month of November.

Humidity

The average relative humidity in November in Old Greenwich is 72%.

Rainfall

In November, the rain falls for 10.3 days. Throughout November, 2.83" (72mm) of precipitation is accumulated. Throughout the year, in Old Greenwich, there are 166.6 rainfall days, and 38.07" (967mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. November is the first month it typically snows. Throughout November, in the average 1.1 snowfall days, it receives 0.24" (6mm) of snow. Throughout the year, in Old Greenwich, there are 24.8 snowfall days, and 9.33" (237mm) of snow is accumulated.

Ocean temperature

In November, the average ocean temperature in Old Greenwich, Connecticut, is 53.8°F (12.1°C).
Note: Swimming in 53.8°F (12.1°C) at temperatures under 50°F (10°C) requires thermal swimsuits; otherwise, one can face cold shock and breathing difficulty. Even brief immersion at 55.4°F (13°C) feels frosty.

Daylight

In Old Greenwich, Connecticut, the average length of the day in November is 9h and 54min.
On the first day of November in Old Greenwich, Connecticut, sunrise is at 7:25 am and sunset at 5:49 pm EDT. On the last day of the month, sunrise is at 6:59 am and sunset at 4:26 pm EST.
Note: On Sunday, November 3. 2024, at 2:00 am, Daylight Saving Time ends, and the time zone changes from EDT to EST. Daylight Saving Time starts again on Sunday, March 9. 2025, at 2:00 am; consequently, the time zone reverts from EST to EDT.

Sunshine

In November, the average sunshine is 5.6h.

UV index

The months with the lowest UV index in Old Greenwich are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 2 in November translates into these instructions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Frequently asked questions

What is the average November temperature in Old Greenwich?

During November, Old Greenwich experiences an average high-temperature of 50.9°F (10.5°C) and a low-temperature of 40.8°F (4.9°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in July is evaluated at 86°F (30°C).

What is the average humidity in November in Old Greenwich?

In Old Greenwich, the average relative humidity in November is 72%.

How many days does it rain in November in Old Greenwich?

In November, the rain falls for 10.3 days. Throughout November, 2.83" (72mm) of precipitation is accumulated.

When does it start to snow in Old Greenwich?

November is the first month it typically snows in Old Greenwich, Connecticut. Throughout November, in the average 1.1 snowfall days, it receives 0.24" (6mm) of snow.

How cold is the water in November in Old Greenwich?

In November, the average ocean temperature in Old Greenwich is 53.8°F (12.1°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What is the average length of the day in November in Old Greenwich?

In November, the average day length in Old Greenwich is 9h and 54min.

When is the sunrise / sunset in November in Old Greenwich?

In November, on the first day of the month, sunrise is at 7:25 am and sunset at 5:49 pm EDT. On the last day of the month, sunrise is at 6:59 am and sunset at 4:26 pm EST.

When does Daylight Saving Time (DST) end in November in Old Greenwich?

On Sunday, November 3. 2024, at 2:00 am, Daylight Saving Time ends, and the time zone changes from EDT to EST. The next DST starts Sunday, March 9. 2025, at 2:00 am.

How many hours of sunshine does Old Greenwich have in November?

The average sunshine duration in November in Old Greenwich is 5.6h.

What are the months with the lowest UV index in Old Greenwich?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in November in Old Greenwich?

In Old Greenwich, the average daily maximum UV index in November is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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 November
Old Greenwich, CT

Average temperature in November - Old Greenwich, CT
  • Average high temperature in November: 50.9°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in November: 40.8°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

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Average pressure in November
Old Greenwich, CT

Average pressure in November - Old Greenwich, CT
  • Average pressure in November: 30.09"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 November
Old Greenwich, CT

Average wind speed in November - Old Greenwich, CT
  • Average wind speed in November: 9.5mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

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Average humidity in November
Old Greenwich, CT

Average humidity in November - Old Greenwich, CT
  • Average humidity in November: 72%

The months with the highest relative humidity are February, May, June and December (75%).
The month with the lowest relative humidity is August (71%).

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Average rainfall in November
Old Greenwich, CT

Average rainfall in November - Old Greenwich, CT
  • Average rainfall in November: 2.83"

The wettest month (with the highest rainfall) is July (4.13").
The driest month (with the least rainfall) is January (2.44").

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Average rainfall days in November
Old Greenwich, CT

Average rainfall days in November - Old Greenwich, CT
  • Average rainfall days in November: 10.3 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (8.6 days).

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Average snowfall in November
Old Greenwich, CT

Average snowfall in November - Old Greenwich, CT
  • Average snowfall in November: 0.24"

The month with the highest snowfall is February (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in November
Old Greenwich, CT

Average snowfall days in November - Old Greenwich, CT
  • Average snowfall days in November: 1.1 days

The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in November
Old Greenwich, CT

Average sea temperature in November - Old Greenwich, CT
  • Average sea temperature in November: 53.8°F

The best month for swimming (with the highest average sea temperature) is August (73.1°F).
The coldest month (with the lowest average sea temperature) is February (39.5°F).

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Average daylight in November /
Average sunshine in November
Old Greenwich, CT

Average daylight in November / Average sunshine in November - Old Greenwich, CT
  • Average daylight in November: 9h and 5min

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 November: 5h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).

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Average sunshine days in November
Old Greenwich, CT

Average sunshine days in November - Old Greenwich, CT
  • Average sunshine days in November: 17.9 days

The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is June (11.1 days).

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Average UV index in November
Old Greenwich, CT

Average UV index in November - Old Greenwich, CT
  • Average UV index in November: 2

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 November
Old Greenwich, CT

Average cloud cover in November - Old Greenwich, CT
  • Average cloud cover in November: 38

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 November
Old Greenwich, CT

Average visibility in November - Old Greenwich, CT
  • Average visibility in November: 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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Old Greenwich, Connecticut, USA

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