January weather forecast
Deep River, CT

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Weather in January

January, like December, in Deep River, Connecticut, is another cold winter month, with temperature in the range of an average high of 35.2°F (1.8°C) and an average low of 25.5°F (-3.6°C).

Temperature

Deep River experiences its lowest temperatures in January, with an average peak of 35.2°F (1.8°C) and a low of 25.5°F (-3.6°C).

Humidity

The average relative humidity in January is 74%.

Rainfall

In Deep River, in January, it is raining for 9 days, with typically 2.52" (64mm) of accumulated precipitation. Throughout the year, there are 166.2 rainfall days, and 34.8" (884mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall. In January, in Deep River, it is snowing for 6.3 days. Throughout January, 2.17" (55mm) of snow is accumulated. Throughout the year, there are 24.2 snowfall days, and 9.53" (242mm) of snow is accumulated.

Daylight

In Deep River, the average length of the day in January is 9h and 35min.
On the first day of the month, sunrise is at 7:15 am and sunset at 4:30 pm. On the last day of January, in Deep River, sunrise is at 7:02 am and sunset at 5:04 pm EST.

Sunshine

In January, the average sunshine in Deep River, Connecticut, is 5.1h.

UV index

The months with the lowest UV index in Deep River are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 2 in January converts into the following recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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Frequently asked questions

What are the coldest months in Deep River?

Deep River's January weather, with an average high temperature of 35.2°F (1.8°C) and an average low temperature of 25.5°F (-3.6°C), tends to be the coldest of the year.

How cold is January in Deep River?

In Deep River, 35.2°F (1.8°C) is the average high-temperature and 25.5°F (-3.6°C) is the average low-temperature during January.

What is the average humidity in January in Deep River?

The average relative humidity in January in Deep River, Connecticut, is 74%.

How many days does it rain in January in Deep River?

In January, in Deep River, the rain falls for 9 days. Throughout January, 2.52" (64mm) of precipitation is accumulated.

How much does it snow in Deep River in January?

In Deep River, in January, snow falls for 6.3 days, with typically accumulated 2.17" (55mm) of snow.

How many hours of daylight does Deep River have in January?

The average day length in January is 9h and 35min.

What time are sunrise and sunset in January in Deep River?

On the first day of January in Deep River, Connecticut, sunrise is at 7:15 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 5:04 pm EST.

How long on average sun shines in January in Deep River?

The average sunshine duration in January in Deep River is 5.1h.

What are the months with the lowest UV index in Deep River?

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

What is the UV index intensity in January in Deep River?

In Deep River, Connecticut, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.
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 January
Deep River, CT

Average temperature in January - Deep River, CT
  • Average high temperature in January: 35.2°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in January: 25.5°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).

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Average pressure in January
Deep River, CT

Average pressure in January - Deep River, CT
  • Average pressure in January: 30.03"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in January
Deep River, CT

Average wind speed in January - Deep River, CT
  • Average wind speed in January: 10.9mph

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

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Average humidity in January
Deep River, CT

Average humidity in January - Deep River, CT
  • Average humidity in January: 74%

The months with the highest relative humidity are May, June and July (78%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in January
Deep River, CT

Average rainfall in January - Deep River, CT
  • Average rainfall in January: 2.52"

The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.93").

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Average rainfall days in January
Deep River, CT

Average rainfall days in January - Deep River, CT
  • Average rainfall days in January: 9 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (9 days).

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Average snowfall in January
Deep River, CT

Average snowfall in January - Deep River, CT
  • Average snowfall in January: 2.17"

The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in January
Deep River, CT

Average snowfall days in January - Deep River, CT
  • Average snowfall days in January: 6.3 days

The month with the highest number of snowfall days is February (7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Deep River, CT

Average daylight in January / Average sunshine in January - Deep River, CT
  • Average daylight in January: 9h and 4min

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 12min).

  • Average sunshine in January: 5h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

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Average sunshine days in January
Deep River, CT

Average sunshine days in January - Deep River, CT
  • Average sunshine days in January: 16 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is July (11.7 days).

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Average UV index in January
Deep River, CT

Average UV index in January - Deep River, CT
  • Average UV index in January: 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 January
Deep River, CT

Average cloud cover in January - Deep River, CT
  • Average cloud cover in January: 45

The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in January
Deep River, CT

Average visibility in January - Deep River, CT
  • Average visibility in January: 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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Deep River, Connecticut, USA

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