January weather forecast
Southport, NY

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Weather in January

January, like December, is another subzero cold winter month in Southport, New York, with an average temperature fluctuating between 17.2°F (-8.2°C) and 28.8°F (-1.8°C).

Temperature

January is the coldest month of the year, registering average temperatures as high as 28.8°F (-1.8°C) and as low as 17.2°F (-8.2°C).

Humidity

In January, the average relative humidity is 83%.

Rainfall

January and November are months with the least rain when the rain falls for 9.3 days and typically aggregates up to 1.89" (48mm) of rain.

Snowfall

January through May, October through December are months with snowfall in Southport. In January, it is snowing for 17.7 days. Throughout January, 6.85" (174mm) of snow is accumulated. In Southport, during the entire year, snow falls for 76.6 days and aggregates up to 34.61" (879mm) of snow.

Daylight

In January, the average length of the day is 9h and 32min.
On the first day of the month, sunrise is at 7:35 am and sunset at 4:46 pm. On the last day of January, sunrise is at 7:21 am and sunset at 5:20 pm EST.

Sunshine

The average sunshine in January is 3.2h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In January, a daily UV index of 1 turns into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in Southport?

In Southport, January is the coldest month, with temperatures averaging a high of 28.8°F (-1.8°C) and a low of 17.2°F (-8.2°C).

How cold is it in January?

The high-temperature, in January, in Southport, records 28.8°F (-1.8°C), while the low-temperature is 17.2°F (-8.2°C).

What is the average humidity in January?

The average relative humidity in January in Southport is 83%.

What is the driest month?

The months with the least rainfall are January and November Rain falls for 9.3 days and accumulates 1.89" (48mm) of rain.

How much does it rain in January?

In Southport, in January, it is raining for 9.3 days, with typically 1.89" (48mm) of accumulated precipitation.

How many days does it snow in January?

In Southport, during January, snow falls for 17.7 days and regularly aggregates up to 6.85" (174mm) of snow.

What is the average length of the day in January?

The average day length in January is 9h and 32min.

When are sunrise and sunset in January?

On the first day of January in Southport, sunrise is at 7:35 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:20 pm EST.

How many hours of sunshine does Southport have in January?

In Southport, the average sunshine duration in January is 3.2h.

What is the month with the lowest UV index?

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

How high is the UV index in January in Southport?

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

Average temperature in January - Southport, NY
  • Average high temperature in January: 28.8°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in January: 17.2°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).

Average pressure in January
Southport, NY

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

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in January
Southport, NY

Average wind speed in January - Southport, NY
  • Average wind speed in January: 9.2mph

The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in January
Southport, NY

Average humidity in January - Southport, NY
  • Average humidity in January: 83%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, May, June and July (78%).

Average rainfall in January
Southport, NY

Average rainfall in January - Southport, NY
  • Average rainfall in January: 1.89"

The wettest month (with the highest rainfall) is April (3.07").
The driest months (with the least rainfall) are January and November (1.89").

Average rainfall days in January
Southport, NY

Average rainfall days in January - Southport, NY
  • Average rainfall days in January: 9.3 days

The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is February (8.3 days).

Average snowfall in January
Southport, NY

Average snowfall in January - Southport, NY
  • Average snowfall in January: 6.85"

The month with the highest snowfall is February (8.82").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Southport, NY

Average snowfall days in January - Southport, NY
  • Average snowfall days in January: 17.7 days

The month with the highest number of snowfall days is January (17.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Southport, 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 12min).

  • Average sunshine in January: 3h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 6min).

Average sunshine days in January
Southport, NY

Average sunshine days in January - Southport, NY
  • Average sunshine days in January: 8.8 days

The month with the most sunshine days is September (14.2 days).
The month with the least sunshine days is February (7.3 days).

Average UV index in January
Southport, NY

Average UV index in January - Southport, NY
  • Average UV index in January: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in January
Southport, NY

Average cloud cover in January - Southport, NY
  • Average cloud cover in January: 69

The months with the most cloud cover are January and February (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 36).

Average visibility in January
Southport, NY

Average visibility in January - Southport, NY
  • Average visibility in January: 5mi

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

Southport, New York, USA

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