January weather forecast
Hadlyme, CT

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Weather in January

January, the same as December, is an icy winter month in Hadlyme, Connecticut, with an average temperature varying between 25.5°F (-3.6°C) and 35.2°F (1.8°C).

Temperature

Hadlyme experiences its lowest average temperatures in January, reaching a peak of 35.2°F (1.8°C) and a minimum of 25.5°F (-3.6°C).

Humidity

In January, the average relative humidity is 74%.

Rainfall

In Hadlyme, during January, the rain falls for 9 days and regularly aggregates up to 2.52" (64mm) of precipitation. In Hadlyme, during the entire year, the rain falls for 166.2 days and collects up to 34.8" (884mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In January, 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

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, sunrise is at 7:02 am and sunset at 5:03 pm EST.

Sunshine

In Hadlyme, the average sunshine in January is 5.1h.

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 value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 2 in January translates into this advice:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

Hadlyme's coldest month, January, generally records average temperatures ranging from a high of 35.2°F (1.8°C) to a low of 25.5°F (-3.6°C).

How cold is January?

The high-temperature during January is 35.2°F (1.8°C) and the low-temperature is 25.5°F (-3.6°C).

What is the average humidity in January?

In January, the average relative humidity is 74%.

How many days does it rain in January?

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

How much does it snow in January?

In January, it is snowing for 6.3 days. Throughout January, 2.17" (55mm) of snow is accumulated.

What is the average length of the day in January?

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

When is the sunrise / sunset in January?

In January, on the first day of the month, 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 5:03 pm EST.

How long on average sun shines in January?

The average sunshine duration in January is 5.1h.

What are the months with the lowest UV index?

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

How high is the UV index in January?

In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health risk 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 January
Hadlyme, CT

Average temperature in January - Hadlyme, 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).

Average pressure in January
Hadlyme, CT

Average pressure in January - Hadlyme, 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).

Average wind speed in January
Hadlyme, CT

Average wind speed in January - Hadlyme, 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).

Average humidity in January
Hadlyme, CT

Average humidity in January - Hadlyme, 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%).

Average rainfall in January
Hadlyme, CT

Average rainfall in January - Hadlyme, 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").

Average rainfall days in January
Hadlyme, CT

Average rainfall days in January - Hadlyme, 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).

Average snowfall in January
Hadlyme, CT

Average snowfall in January - Hadlyme, 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").

Average snowfall days in January
Hadlyme, CT

Average snowfall days in January - Hadlyme, 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).

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

Average daylight in January / Average sunshine in January - Hadlyme, 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).

Average sunshine days in January
Hadlyme, CT

Average sunshine days in January - Hadlyme, 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).

Average UV index in January
Hadlyme, CT

Average UV index in January - Hadlyme, 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).

Average cloud cover in January
Hadlyme, CT

Average cloud cover in January - Hadlyme, 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).

Average visibility in January
Hadlyme, CT

Average visibility in January - Hadlyme, 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).

Hadlyme, Connecticut, USA

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