Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
In Southold, the month of January registers the lowest temperatures, averaging 38.8°F (3.8°C) at the peak and 31.3°F (-0.4°C) at the lowest.Humidity
The average relative humidity in January is 73%.Rainfall
In January, in Southold, the rain falls for 9.1 days. Throughout January, 2.56" (65mm) of precipitation is accumulated. Throughout the year, there are 154.1 rainfall days, and 34.92" (887mm) of precipitation is accumulated.Snowfall
Months with snowfall in Southold, New York, are January through March, November and December. In Southold, in January, snow falls for 4.2 days, with typically accumulated 1.85" (47mm) of snow. In Southold, during the entire year, snow falls for 13.9 days and aggregates up to 6.61" (168mm) of snow.Daylight
In January, the average length of the day is 9h and 37min.On the first day of the month, sunrise is at 7:14 am and sunset at 4:31 pm. On the last day of January, in Southold, sunrise is at 7:01 am and sunset at 5:04 pm EST.
Sunshine
The average sunshine in January in Southold is 4.9h.UV index
January through March and December, with an average maximum UV index of 2, are months with the lowest UV index in Southold. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: The daily maximum UV index of 2 in January interprets into the following advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Southold?
How cold does it get in Southold in January?
What is the average humidity in January in Southold?
How many days does it rain in January in Southold?
How many days does it snow in January in Southold?
What is the average length of the day in January in Southold?
When are sunrise and sunset in January in Southold?
How long on average sun shines in January in Southold?
What is the month with the lowest UV index in Southold?
What is the UV index reading in January in Southold?
Average temperature in January
Southold, NY
- Average high temperature in January: 38.8°F
The warmest month (with the highest average high temperature) is August (75.9°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in January: 31.3°F
The month with the highest average low temperature is August (71.2°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).
Average pressure in January
Southold, NY
- Average pressure in January: 30.03"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Southold, NY
- Average wind speed in January: 16mph
The windiest month (with the highest average wind speed) is January (16mph).
The calmest month (with the lowest average wind speed) is July (10.4mph).
Average humidity in January
Southold, NY
- Average humidity in January: 73%
The months with the highest relative humidity are May and June (81%).
The month with the lowest relative humidity is November (72%).
Average rainfall in January
Southold, NY
- Average rainfall in January: 2.56"
The wettest month (with the highest rainfall) is December (3.82").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in January
Southold, NY
- Average rainfall days in January: 9.1 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in January
Southold, NY
- Average snowfall in January: 1.85"
The month with the highest snowfall is March (2.36").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Southold, NY
- Average snowfall days in January: 4.2 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Southold, 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: 4h and 5min
The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in January
Southold, NY
- Average sunshine days in January: 15.3 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is February (12.8 days).
Average UV index in January
Southold, 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 and December (UV index 2).
Average cloud cover in January
Southold, NY
- Average cloud cover in January: 48
The month with the most cloud cover is December (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in January
Southold, 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).
Southold, New York, USA
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