January weather forecast
Locust Valley, NY

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Weather in January

January, the same as December, is an icy winter month in Locust Valley, New York, with temperature in the range of an average high of 36.5°F (2.5°C) and an average low of 27.3°F (-2.6°C).

Temperature

January is the month when Locust Valley experiences its coldest temperatures, averaging a high of 36.5°F (2.5°C) and a low of 27.3°F (-2.6°C).

Humidity

In Locust Valley, the average relative humidity in January is 73%.

Rainfall

In Locust Valley, in January, it is raining for 9.3 days, with typically 2.48" (63mm) of accumulated precipitation. Throughout the year, there are 165.9 rainfall days, and 37.56" (954mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. In January, it is snowing for 6.8 days. Throughout January, 1.77" (45mm) of snow is accumulated. In Locust Valley, during the entire year, snow falls for 22.2 days and aggregates up to 7.24" (184mm) of snow.

Daylight

In January, the average length of the day in Locust Valley, New York, is 9h and 38min.
On the first day of the month, sunrise is at 7:18 am and sunset at 4:36 pm. On the last day of January, sunrise is at 7:05 am and sunset at 5:09 pm EST.

Sunshine

In Locust Valley, the average sunshine in January is 5.1h.

UV index

The months with the lowest UV index in Locust Valley 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 minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 2 during January translates into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Direct Sun exposure should be minimized especially during midday when radiation is most intense. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in Locust Valley?

January, recording an average high temperature of 36.5°F (2.5°C) and a low temperature of 27.3°F (-2.6°C), is Locust Valley's coldest month.

How cold is it in Locust Valley in January?

In Locust Valley, in January, the average high-temperature is 36.5°F (2.5°C), and the average low-temperature is 27.3°F (-2.6°C).

What is the average humidity in January in Locust Valley?

In January, the average relative humidity in Locust Valley, New York, is 73%.

How much does it rain in Locust Valley in January?

In Locust Valley, New York, in January, during 9.3 rainfall days, 2.48" (63mm) of precipitation is typically accumulated.

How much does it snow in Locust Valley in January?

In Locust Valley, New York, during January, snow falls for 6.8 days and regularly aggregates up to 1.77" (45mm) of snow.

What is the average length of the day in January in Locust Valley?

In Locust Valley, the average day length in January is 9h and 38min.

When are sunrise and sunset in January in Locust Valley?

On the first day of January in Locust Valley, New York, sunrise is at 7:18 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:09 pm EST.

How long on average sun shines in January in Locust Valley?

The average sunshine duration in January in Locust Valley is 5.1h.

What is the month with the lowest UV index in Locust Valley?

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

How high is the UV index in January in Locust Valley?

In Locust Valley, New York, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Locust Valley, NY

Average temperature in January - Locust Valley, NY
  • Average high temperature in January: 36.5°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in January: 27.3°F

The months with the highest average low temperature are July and August (70.3°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).

Average pressure in January
Locust Valley, NY

Average pressure in January - Locust Valley, NY
  • Average pressure in January: 30.05"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
Locust Valley, NY

Average wind speed in January - Locust Valley, NY
  • Average wind speed in January: 11.2mph

The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).

Average humidity in January
Locust Valley, NY

Average humidity in January - Locust Valley, NY
  • Average humidity in January: 73%

The months with the highest relative humidity are February, May and December (75%).
The months with the lowest relative humidity are August and November (71%).

Average rainfall in January
Locust Valley, NY

Average rainfall in January - Locust Valley, NY
  • Average rainfall in January: 2.48"

The wettest month (with the highest rainfall) is December (4.06").
The driest month (with the least rainfall) is September (2.4").

Average rainfall days in January
Locust Valley, NY

Average rainfall days in January - Locust Valley, NY
  • Average rainfall days in January: 9.3 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (9.3 days).

Average snowfall in January
Locust Valley, NY

Average snowfall in January - Locust Valley, NY
  • Average snowfall in January: 1.77"

The month with the highest snowfall is March (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Locust Valley, NY

Average snowfall days in January - Locust Valley, NY
  • Average snowfall days in January: 6.8 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
Locust Valley, NY

Average daylight in January / Average sunshine in January - Locust Valley, NY
  • 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 month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in January
Locust Valley, NY

Average sunshine days in January - Locust Valley, NY
  • Average sunshine days in January: 17.3 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (10.6 days).

Average UV index in January
Locust Valley, NY

Average UV index in January - Locust Valley, NY
  • 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
Locust Valley, NY

Average cloud cover in January - Locust Valley, NY
  • Average cloud cover in January: 44

The months with the most cloud cover are February and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 29).

Average visibility in January
Locust Valley, NY

Average visibility in January - Locust Valley, NY
  • 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).

Locust Valley, New York, USA

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