January weather forecast
Plandome Heights, NY

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Weather in January

January, the same as December, is a wintry winter month in Plandome Heights, New York, with an average temperature fluctuating between 36.5°F (2.5°C) and 26.8°F (-2.9°C).

Temperature

Plandome Heights's coldest month, January, generally records average temperatures ranging from a high of 36.5°F (2.5°C) to a low of 26.8°F (-2.9°C).

Humidity

In Plandome Heights, the average relative humidity in January is 73%.

Rainfall

In January, the rain falls for 9.2 days. Throughout January, 2.44" (62mm) of precipitation is accumulated. In Plandome Heights, during the entire year, the rain falls for 168.7 days and collects up to 36.69" (932mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In January, it is snowing for 7.5 days. Throughout January, 1.85" (47mm) of snow is accumulated. In Plandome Heights, during the entire year, snow falls for 23 days and aggregates up to 8.23" (209mm) of snow.

Ocean temperature

In January, the average ocean temperature is 42.4°F (5.8°C).
Note: With an efficient thermal swimsuit, one can navigate 42.4°F (5.8°C) even if it's colder than 50°F (10°C); otherwise, rapid cold shock and breathlessness might set in. Barely wading at 55.4°F (13°C) feels chilly.

Daylight

In Plandome Heights, the average length of the day in January is 9h and 38min.
On the first day of January, sunrise is at 7:18 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:10 pm EST.

Sunshine

In January, the average sunshine 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 reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: In January, a regular UV index of 2 translates into these guidelines:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. The Sun's radiation is especially intense around midday; try to stay in shade during this period. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

January is Plandome Heights's coldest month, registering average high temperatures of 36.5°F (2.5°C) and lows of 26.8°F (-2.9°C).

How cold is January?

In January, in Plandome Heights, the average high-temperature is 36.5°F (2.5°C), and the average low-temperature is 26.8°F (-2.9°C).

What is the average humidity in January?

The average relative humidity in January is 73%.

How much does it rain in Plandome Heights in January?

In Plandome Heights, during January, the rain falls for 9.2 days and regularly aggregates up to 2.44" (62mm) of precipitation.

How many days does it snow in January?

In January, it is snowing for 7.5 days. Throughout January, 1.85" (47mm) of snow is accumulated.

What is the ocean temperature in January in Plandome Heights?

In January, the average ocean temperature in Plandome Heights, New York, is 42.4°F (5.8°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What is the average length of the day in January?

The average day length in January is 9h and 38min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:18 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:10 pm EST.

How many hours of sunshine does Plandome Heights have in January?

The average sunshine duration in January is 5.1h.

What is the month with the lowest UV index?

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

How high is the UV index in January?

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

Average temperature in January - Plandome Heights, NY
  • Average high temperature in January: 36.5°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in January: 26.8°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

Average pressure in January
Plandome Heights, NY

Average pressure in January - Plandome Heights, NY
  • Average pressure in January: 30.06"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
Plandome Heights, NY

Average wind speed in January - Plandome Heights, NY
  • Average wind speed in January: 10.4mph

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

Average humidity in January
Plandome Heights, NY

Average humidity in January - Plandome Heights, NY
  • Average humidity in January: 73%

The months with the highest relative humidity are February, May and December (75%).
The month with the lowest relative humidity is August (70%).

Average rainfall in January
Plandome Heights, NY

Average rainfall in January - Plandome Heights, NY
  • Average rainfall in January: 2.44"

The wettest month (with the highest rainfall) is December (3.98").
The driest month (with the least rainfall) is February (2.36").

Average rainfall days in January
Plandome Heights, NY

Average rainfall days in January - Plandome Heights, NY
  • Average rainfall days in January: 9.2 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (9.2 days).

Average snowfall in January
Plandome Heights, NY

Average snowfall in January - Plandome Heights, NY
  • Average snowfall in January: 1.85"

The month with the highest snowfall is March (2.32").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Plandome Heights, NY

Average snowfall days in January - Plandome Heights, NY
  • Average snowfall days in January: 7.5 days

The month with the highest number of snowfall days is January (7.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in January
Plandome Heights, NY

Average sea temperature in January - Plandome Heights, NY
  • Average sea temperature in January: 42.4°F

The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.9°F).

Average daylight in January /
Average sunshine in January
Plandome Heights, NY

Average daylight in January / Average sunshine in January - Plandome Heights, 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
Plandome Heights, NY

Average sunshine days in January - Plandome Heights, NY
  • Average sunshine days in January: 16.7 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (11.1 days).

Average UV index in January
Plandome Heights, NY

Average UV index in January - Plandome Heights, 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
Plandome Heights, NY

Average cloud cover in January - Plandome Heights, NY
  • Average cloud cover in January: 43

The month with the most cloud cover is December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 29).

Average visibility in January
Plandome Heights, NY

Average visibility in January - Plandome Heights, 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).

Plandome Heights, New York, USA

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