January weather forecast
New Haven, NY

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Weather in January

January, like December, is another subzero cold winter month in New Haven, New York, with an average temperature ranging between min 18°F (-7.8°C) and max 27.9°F (-2.3°C).

Temperature

New Haven's coldest temperatures are experienced in January, with average high temperatures of 27.9°F (-2.3°C) and lows of 18°F (-7.8°C).

Humidity

January and February, with an average relative humidity of 86%, are the most humid months.

Rainfall

In New Haven, during January, the rain falls for 8.8 days and regularly aggregates up to 3.19" (81mm) of precipitation. Throughout the year, there are 171 rainfall days, and 39.21" (996mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. The month with the most snowfall is January, when snow falls for 18.9 days and typically aggregates up to 8.98" (228mm) of snow.

Daylight

The average length of the day in January in New Haven is 9h and 23min.
On the first day of January, sunrise is at 7:38 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:14 pm EST.

Sunshine

With an average of 2.4h of sunshine, January has the least sunshine of the year in New Haven, New York.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in New Haven. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In January, the UV index of 1 transforms into the following advice:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest in New Haven?

In New Haven, January is the coldest month, with temperatures averaging a high of 27.9°F (-2.3°C) and a low of 18°F (-7.8°C).

How cold is it in New Haven in January?

In January, in New Haven, the average high-temperature is 27.9°F (-2.3°C), and the average low-temperature is 18°F (-7.8°C).

What are the most humid months in New Haven?

January and February, with an average relative humidity of 86%, are most humid months in New Haven.

What is the average humidity in January in New Haven?

In New Haven, New York, the average relative humidity in January is 86%.

How much does it rain in New Haven in January?

In New Haven, New York, during January, the rain falls for 8.8 days and regularly aggregates up to 3.19" (81mm) of precipitation.

What is the snowiest month in New Haven?

The month with the most snowfall in New Haven, New York, is January, when snow falls for 18.9 days and typically aggregates up to 8.98" (228mm) of snow.

How much does it snow in New Haven in January?

In New Haven, in January, during 18.9 snowfall days, 8.98" (228mm) of snow is typically accumulated.

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

In New Haven, New York, the average day length in January is 9h and 23min.

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

In January, on the first day of the month, sunrise is at 7:38 am and sunset at 4:39 pm. On the last day of the month, in New Haven, sunrise is at 7:22 am and sunset at 5:14 pm EST.

What is the month with the least sunshine in New Haven?

With an average of 2.4h of sunshine, January has the least sunshine of the year in New Haven, New York.

How long on average sun shines in January in New Haven?

The average sunshine duration in January in New Haven is 2.4h.

What are the months with the lowest UV index in New Haven?

January and December, with an average maximum UV index of 1, are months with the lowest UV index.

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

In New Haven, the average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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
New Haven, NY

Average temperature in January - New Haven, NY
  • Average high temperature in January: 27.9°F

The warmest month (with the highest average high temperature) is July (75.2°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in January: 18°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure in January
New Haven, NY

Average pressure in January - New Haven, NY
  • Average pressure in January: 30.04"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in January
New Haven, NY

Average wind speed in January - New Haven, NY
  • Average wind speed in January: 11.9mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).

Average humidity in January
New Haven, NY

Average humidity in January - New Haven, NY
  • Average humidity in January: 86%

The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is September (77%).

Average rainfall in January
New Haven, NY

Average rainfall in January - New Haven, NY
  • Average rainfall in January: 3.19"

The wettest month (with the highest rainfall) is October (4.02").
The driest month (with the least rainfall) is September (2.36").

Average rainfall days in January
New Haven, NY

Average rainfall days in January - New Haven, NY
  • Average rainfall days in January: 8.8 days

The month with the highest number of rainy days is October (19.1 days).
The month with the least rainy days is February (7.8 days).

Average snowfall in January
New Haven, NY

Average snowfall in January - New Haven, NY
  • Average snowfall in January: 8.98"

The month with the highest snowfall is January (8.98").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
New Haven, NY

Average snowfall days in January - New Haven, NY
  • Average snowfall days in January: 18.9 days

The month with the highest number of snowfall days is January (18.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
New Haven, NY

Average daylight in January / Average sunshine in January - New Haven, NY
  • Average daylight in January: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in January: 2h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

Average sunshine days in January
New Haven, NY

Average sunshine days in January - New Haven, NY
  • Average sunshine days in January: 6.3 days

The month with the most sunshine days is September (14 days).
The month with the least sunshine days is January (6.3 days).

Average UV index in January
New Haven, NY

Average UV index in January - New Haven, NY
  • Average UV index in January: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in January
New Haven, NY

Average cloud cover in January - New Haven, NY
  • Average cloud cover in January: 77

The month with the most cloud cover is January (Cloud cover 77).
The months with the least cloud cover are July and August (Cloud cover 30).

Average visibility in January
New Haven, NY

Average visibility in January - New Haven, NY
  • Average visibility in January: 5mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).

New Haven, New York, USA

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