January weather forecast
East Haven, CT

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Weather in January

January, often considered a bracing month in East Haven, Connecticut, could feel colder with temperatures plunging from 35.2°F (1.8°C) to 25.3°F (-3.7°C). The primary characteristic of January is its brisk, invariable chill. A noticeable feature during this month is that daylight hours are relatively limited, often leading to shorter, typically frosty days. The steady emergence of snow adds further charm to the East Haven winter wonderland. As the year starts, January serves as the opening act to a captivating East Haven winter performance.

Temperature

In East Haven, January is the coldest month, with temperatures averaging a high of 35.2°F (1.8°C) and a low of 25.3°F (-3.7°C).

Humidity

In East Haven, the average relative humidity in January is 74%.

Rainfall

January and September are months with the least rain when the rain falls for 6.2 days and typically aggregates up to 0.51" (13mm) of rain.

Snowfall

Months with snowfall are January through March and December. In January, it is snowing for 5.1 days. Throughout January, 0.31" (8mm) of snow is accumulated. Throughout the year, there are 16.3 snowfall days, and 1.54" (39mm) of snow is accumulated.

Daylight

The average length of the day in January in East Haven, Connecticut, is 9h and 36min.
On the first day of January, sunrise is at 7:17 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 5:05 pm EST.

Sunshine

In East Haven, the average sunshine in January is 5.2h.

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 vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 2 in January translates into this advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. During bright days, sunglasses that offer UVA and UVB defense are recommended. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
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Frequently asked questions

What are the coldest months in East Haven?

January is East Haven's coldest month, registering average high temperatures of 35.2°F (1.8°C) and lows of 25.3°F (-3.7°C).

How cold is it in East Haven in January?

In East Haven, in January, the average high-temperature is 35.2°F (1.8°C), and the average low-temperature is 25.3°F (-3.7°C).

What is the average humidity in January in East Haven?

In East Haven, the average relative humidity in January is 74%.

What is the driest month in East Haven?

January and September are months with the least rain when the rain falls for 6.2 days and typically aggregates up to 0.51" (13mm) of rain.

How much does it rain in East Haven in January?

In East Haven, Connecticut, during January, the rain falls for 6.2 days and regularly aggregates up to 0.51" (13mm) of precipitation.

How many days does it snow in January in East Haven?

In January, in East Haven, it is snowing for 5.1 days. Throughout January, 0.31" (8mm) of snow is accumulated.

How many hours of daylight does East Haven have in January?

The average day length in January in East Haven is 9h and 36min.

When is the sunrise / sunset in January in East Haven?

In January, on the first day of the month, sunrise is at 7:17 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 5:05 pm EST.

How many hours of sunshine does East Haven have in January?

In East Haven, the average sunshine duration in January is 5.2h.

What is the month with the lowest UV index in East Haven?

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

What is the UV index reading in January in East Haven?

The average daily maximum UV index in January in East Haven is 2. A UV Index reading of 2, and below, represents a low health threat from unsafe 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
East Haven, CT

Average temperature in January - East Haven, CT
  • Average high temperature in January: 35.2°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in January: 25.3°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).

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Average pressure in January
East Haven, CT

Average pressure in January - East Haven, CT
  • Average pressure in January: 30.04"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 January
East Haven, CT

Average wind speed in January - East Haven, CT
  • Average wind speed in January: 10.4mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average humidity in January
East Haven, CT

Average humidity in January - East Haven, CT
  • Average humidity in January: 74%

The month with the highest relative humidity is June (77%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in January
East Haven, CT

Average rainfall in January - East Haven, CT
  • Average rainfall in January: 0.51"

The wettest month (with the highest rainfall) is July (1.14").
The driest months (with the least rainfall) are January and September (0.51").

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Average rainfall days in January
East Haven, CT

Average rainfall days in January - East Haven, CT
  • Average rainfall days in January: 6.2 days

The month with the highest number of rainy days is July (12.8 days).
The month with the least rainy days is January (6.2 days).

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Average snowfall in January
East Haven, CT

Average snowfall in January - East Haven, CT
  • Average snowfall in January: 0.31"

The month with the highest snowfall is March (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in January
East Haven, CT

Average snowfall days in January - East Haven, CT
  • Average snowfall days in January: 5.1 days

The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in January /
Average sunshine in January
East Haven, CT

Average daylight in January / Average sunshine in January - East Haven, 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 18min).

  • Average sunshine in January: 5h and 1min

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

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Average sunshine days in January
East Haven, CT

Average sunshine days in January - East Haven, CT
  • Average sunshine days in January: 20.7 days

The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is August (16.3 days).

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Average UV index in January
East Haven, CT

Average UV index in January - East Haven, 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
East Haven, CT

Average cloud cover in January - East Haven, CT
  • Average cloud cover in January: 44

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
East Haven, CT

Average visibility in January - East Haven, 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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East Haven, Connecticut, USA

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