January weather forecast
Westfield, NY

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Weather in January

January, the same as December, in Westfield, New York, is a freezing cold winter month, with an average temperature fluctuating between 29.5°F (-1.4°C) and 21.4°F (-5.9°C).

Temperature

January, having an average high-temperature of 29.5°F (-1.4°C) and an average low-temperature of 21.4°F (-5.9°C), is the coldest month.

Humidity

The average relative humidity in January in Westfield, New York, is 85%.

Rainfall

In Westfield, New York, in January, it is raining for 8.7 days, with typically 2.68" (68mm) of accumulated precipitation. Throughout the year, there are 176.3 rainfall days, and 34.65" (880mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Westfield. In Westfield, during January, snow falls for 16.6 days and regularly aggregates up to 4.76" (121mm) of snow. Throughout the year, in Westfield, there are 66.8 snowfall days, and 22.72" (577mm) of snow is accumulated.

Ocean temperature

In Westfield, New York, in January, the average water temperature is 35.6°F (2°C).
Note: In the realm of swimming, this is life-threatening and fraught with danger. The cold water triggers intense discomfort and leads to swift hyperventilation. Donning a specialized swimsuit is essential to curb thermal harm.

Daylight

The average length of the day in January is 9h and 31min.
On the first day of the month, sunrise is at 7:47 am and sunset at 4:56 pm. On the last day of January, sunrise is at 7:32 am and sunset at 5:30 pm EST.

Sunshine

With an average of 2.5h of sunshine, January has the least sunshine of the year in Westfield.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Westfield. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.
Note: In January, the maximum UV index of 1 translates into these guidelines:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Westfield?

January is Westfield's coldest month, registering average high temperatures of 29.5°F (-1.4°C) and lows of 21.4°F (-5.9°C).

How cold is January in Westfield?

An average high-temperature, in January, in Westfield, is 29.5°F (-1.4°C) and the average low-temperature is 21.4°F (-5.9°C).

What is the average humidity in January in Westfield?

The average relative humidity in January in Westfield, New York, is 85%.

How much does it rain in Westfield in January?

In Westfield, in January, it is raining for 8.7 days, with typically 2.68" (68mm) of accumulated precipitation.

How much does it snow in Westfield in January?

In January, it is snowing for 16.6 days. Throughout January, 4.76" (121mm) of snow is accumulated.

What is the ocean temperature in January in Westfield?

In January, the average ocean temperature in Westfield is 35.6°F (2°C). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

How many hours of daylight does Westfield have in January?

In Westfield, the average day length in January is 9h and 31min.

When is the sunrise / sunset in January in Westfield?

On the first day of January in Westfield, New York, sunrise is at 7:47 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:30 pm EST.

What is the month with the least sunshine in Westfield?

The month with the least sunshine is January, with an average of 2.5h of sunshine.

How long on average sun shines in January in Westfield?

In Westfield, the average sunshine duration in January is 2.5h.

When is the lowest UV index in Westfield?

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

What is the UV index intensity in January in Westfield?

In Westfield, the average daily maximum UV index in January is 1. A UV Index reading of 2, and below, represents 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
Westfield, NY

Average temperature in January - Westfield, NY
  • Average high temperature in January: 29.5°F

The warmest month (with the highest average high temperature) is July (74.3°F).
The month with the lowest average high temperature is January (29.5°F).

  • Average low temperature in January: 21.4°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).

Average pressure in January
Westfield, NY

Average pressure in January - Westfield, NY
  • Average pressure in January: 30.07"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in January
Westfield, NY

Average wind speed in January - Westfield, NY
  • Average wind speed in January: 14.2mph

The windiest month (with the highest average wind speed) is January (14.2mph).
The calmest month (with the lowest average wind speed) is July (8mph).

Average humidity in January
Westfield, NY

Average humidity in January - Westfield, NY
  • Average humidity in January: 85%

The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are September, October and November (78%).

Average rainfall in January
Westfield, NY

Average rainfall in January - Westfield, NY
  • Average rainfall in January: 2.68"

The wettest month (with the highest rainfall) is October (3.39").
The driest month (with the least rainfall) is September (2.2").

Average rainfall days in January
Westfield, NY

Average rainfall days in January - Westfield, NY
  • Average rainfall days in January: 8.7 days

The month with the highest number of rainy days is October (18.9 days).
The month with the least rainy days is January (8.7 days).

Average snowfall in January
Westfield, NY

Average snowfall in January - Westfield, NY
  • Average snowfall in January: 4.76"

The month with the highest snowfall is February (6.3").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Westfield, NY

Average snowfall days in January - Westfield, NY
  • Average snowfall days in January: 16.6 days

The month with the highest number of snowfall days is January (16.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in January
Westfield, NY

Average sea temperature in January - Westfield, NY
  • Average sea temperature in January: 35.6°F

The best month for swimming (with the highest average sea temperature) is August (75.1°F).
The coldest month (with the lowest average sea temperature) is February (33.2°F).

Average daylight in January /
Average sunshine in January
Westfield, NY

Average daylight in January / Average sunshine in January - Westfield, NY
  • 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 6min).

  • Average sunshine in January: 2h and 3min

The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).

Average sunshine days in January
Westfield, NY

Average sunshine days in January - Westfield, NY
  • Average sunshine days in January: 5.3 days

The month with the most sunshine days is September (13.2 days).
The month with the least sunshine days is January (5.3 days).

Average UV index in January
Westfield, NY

Average UV index in January - Westfield, 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
Westfield, NY

Average cloud cover in January - Westfield, NY
  • Average cloud cover in January: 77

The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in January
Westfield, NY

Average visibility in January - Westfield, NY
  • Average visibility in January: 4mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

Westfield, New York, USA

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