January weather forecast
Norfolk, CT

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Weather in January

January, the same as December, in Norfolk, Connecticut, is a freezing cold winter month, with an average temperature fluctuating between 30.4°F (-0.9°C) and 18°F (-7.8°C).

Temperature

During the coldest month, January, temperatures average a high of 30.4°F (-0.9°C) and a low of 18°F (-7.8°C).

Humidity

In Norfolk, the average relative humidity in January is 79%.

Rainfall

In Norfolk, in January, it is raining for 7.3 days, with typically 2.24" (57mm) of accumulated precipitation. In Norfolk, Connecticut, during the entire year, the rain falls for 157.2 days and collects up to 33.31" (846mm) of precipitation.

Snowfall

Months with snowfall in Norfolk are January through May, October through December. In Norfolk, in January, snow falls for 11.1 days, with typically accumulated 5.12" (130mm) of snow. In Norfolk, during the entire year, snow falls for 45.3 days and aggregates up to 25.63" (651mm) of snow.

Daylight

In Norfolk, the average length of the day in January is 9h and 32min.
On the first day of the month, sunrise is at 7:20 am and sunset at 4:31 pm. On the last day of January, in Norfolk, sunrise is at 7:06 am and sunset at 5:05 pm EST.

Sunshine

The average sunshine in January in Norfolk, Connecticut, is 4.6h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 2 during January translates into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest in Norfolk?

January is the coldest month in Norfolk, Connecticut, with the temperature often reaching an average high of 30.4°F (-0.9°C) and an average low of 18°F (-7.8°C).

How cold is it in Norfolk in January?

The high-temperature, in January, in Norfolk, is 30.4°F (-0.9°C), while the low-temperature averages to 18°F (-7.8°C).

What is the average humidity in January in Norfolk?

In Norfolk, Connecticut, the average relative humidity in January is 79%.

How much does it rain in Norfolk in January?

In Norfolk, in January, during 7.3 rainfall days, 2.24" (57mm) of precipitation is typically accumulated.

How much does it snow in Norfolk in January?

In Norfolk, in January, during 11.1 snowfall days, 5.12" (130mm) of snow is typically accumulated.

How many hours of daylight does Norfolk have in January?

In January, the average day length in Norfolk is 9h and 32min.

When are sunrise and sunset in January in Norfolk?

In January, on the first day of the month, sunrise is at 7:20 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:05 pm EST.

How many hours of sunshine does Norfolk have in January?

In Norfolk, Connecticut, the average sunshine duration in January is 4.6h.

What are the months with the lowest UV index in Norfolk?

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 January in Norfolk?

In January, the average daily maximum UV index in Norfolk is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to 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 January
Norfolk, CT

Average temperature in January - Norfolk, CT
  • Average high temperature in January: 30.4°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.4°F).

  • Average low temperature in January: 18°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure in January
Norfolk, CT

Average pressure in January - Norfolk, CT
  • Average pressure in January: 30.03"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).

Average wind speed in January
Norfolk, CT

Average wind speed in January - Norfolk, CT
  • Average wind speed in January: 8.6mph

The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average humidity in January
Norfolk, CT

Average humidity in January - Norfolk, CT
  • Average humidity in January: 79%

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

Average rainfall in January
Norfolk, CT

Average rainfall in January - Norfolk, CT
  • Average rainfall in January: 2.24"

The wettest months (with the highest rainfall) are October and December (3.31").
The driest month (with the least rainfall) is September (2.09").

Average rainfall days in January
Norfolk, CT

Average rainfall days in January - Norfolk, CT
  • Average rainfall days in January: 7.3 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is February (7.1 days).

Average snowfall in January
Norfolk, CT

Average snowfall in January - Norfolk, CT
  • Average snowfall in January: 5.12"

The month with the highest snowfall is February (6.38").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Norfolk, CT

Average snowfall days in January - Norfolk, CT
  • Average snowfall days in January: 11.1 days

The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Norfolk, CT

Average daylight in January / Average sunshine in January - Norfolk, CT
  • Average daylight in January: 9h and 3min

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 January: 4h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

Average sunshine days in January
Norfolk, CT

Average sunshine days in January - Norfolk, CT
  • Average sunshine days in January: 16.8 days

The month with the most sunshine days is January (16.8 days).
The month with the least sunshine days is June (11.4 days).

Average UV index in January
Norfolk, CT

Average UV index in January - Norfolk, CT
  • Average UV index in January: 2

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).

Average cloud cover in January
Norfolk, CT

Average cloud cover in January - Norfolk, CT
  • Average cloud cover in January: 50

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 37).

Average visibility in January
Norfolk, CT

Average visibility in January - Norfolk, CT
  • Average visibility in January: 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).

Norfolk, Connecticut, USA

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