Suffolk County (Long Island)
January
Weather in Suffolk County for January 2026
Your guide to Suffolk County weather in January - trends and predictions
With an average of 4 snowy days, Suffolk County usually enjoys a light touch of snow in January.
In general, the average temperature in Suffolk County at the beginning of January is 2.4 °F. As the month progressed, temperatures tended to slightly increase, reaching an average of 2.7 °F by the end of January.
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Snow Forecast ❄️
Temperatures
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21
Dry days
6
Rainy days
4
Snow days
2°/-4°
Temperatures
25 km/h
Avg max wind
68 %
Avg humidity
Suffolk County Weather January
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Temperatures trend during January in Suffolk County
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January weather in Suffolk County day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Jan. 1 |  Patchy rain possible | 10° /4° | 24.8 mm | 0 cm | |
| Jan. 2 |  Sunny | 5° /0° | 0 mm | 0 cm | |
| Jan. 3 |  Partly cloudy | 1° /-2° | 0 mm | 0 cm | |
| Jan. 4 |  Cloudy | 0° /-3° | 0 mm | 0 cm | |
| Jan. 5 | Sunny | 1° /-5° | 0 mm | 0 cm | |
| Jan. 6 |  Patchy moderate snow | 0° /-3° | 1.4 mm | 0.4 cm | |
| Jan. 7 | Partly cloudy | 0° /-5° | 0.1 mm | 0 cm | |
| Jan. 8 |  Overcast | 0° /-3° | 0 mm | 0 cm | |
| Jan. 9 | Sunny | 0° /-6° | 0 mm | 0 cm | |
| Jan. 10 | Sunny | 3° /-4° | 0 mm | 0 cm | |
| Jan. 11 |  Moderate snow | 1° /-1° | 5.2 mm | 3.2 cm | |
| Jan. 12 | Sunny | 4° /-2° | 0 mm | 0 cm | |
| Jan. 13 | Overcast | 4° /0° | 0 mm | 0 cm | |
| Jan. 14 | Cloudy | 0° /-3° | 0 mm | 0 cm | |
| Jan. 15 | Sunny | 1° /-5° | 0 mm | 0 cm | |
| Jan. 16 |  Light freezing rain | -1° /-5° | 0.4 mm | 0 cm | |
| Jan. 17 | Sunny | 2° /-3° | 0 mm | 0 cm | |
| Jan. 18 |  Moderate or heavy rain shower | 7° /1° | 5.3 mm | 0 cm | |
| Jan. 19 | Light freezing rain | 5° /-1° | 6.5 mm | 4.1 cm | |
| Jan. 20 | Cloudy | -2° /-7° | 4.8 mm | 3.2 cm | |
| Jan. 21 | Light freezing rain | -6° /-11° | 0.6 mm | 0 cm | |
| Jan. 22 | Partly cloudy | -6° /-11° | 0 mm | 0 cm | |
| Jan. 23 | Overcast | -1° /-10° | 0 mm | 0 cm | |
| Jan. 24 | Sunny | 0° /-7° | 0 mm | 0 cm | |
| Jan. 25 | Cloudy | -1° /-8° | 0 mm | 0 cm | |
| Jan. 26 | Overcast | 2° /-3° | 0 mm | 0 cm | |
| Jan. 27 | Partly cloudy | 3° /-3° | 0 mm | 0 cm | |
| Jan. 28 | Overcast | 2° /-4° | 0 mm | 0 cm | |
| Jan. 29 | Patchy rain possible | 7° /-1° | 0.3 mm | 0 cm | |
| Jan. 30 | Sunny | 1° /-5° | 0 mm | 0 cm | |
| Jan. 31 |  Moderate rain | 5° /0° | 15.8 mm | 0 cm | |
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Important Notice
Our weather forecast for Suffolk County in January is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Suffolk County forecast closer to your planned date for the most up-to-date weather information.
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Suffolk County in January - FAQ
What are the expected maximum and minimum temperatures in Suffolk County during January?
Brace for cold days with temperatures not exceeding 2° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Suffolk County during January?
Moderate rainfall is anticipated in Suffolk County during January, with a total of 65.1 mm spread over approximately 6 days. Considering plans for rainy days is advisable.
Will it snow in Suffolk County in January 2026?
Suffolk County experiences an average snowfall of 10.9 cm during January, occurring over 4 days.
What are the typical wind conditions in Suffolk County during January?
The average wind speed in Suffolk County during January is 25 km/h, suggesting breezy to windy conditions, depending on your activities.
Suffolk County snow forecast January 2026
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January rainfall patterns in Suffolk County
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Where is Suffolk County?Get accurate weather forecasts for Suffolk County, located at latitude 40.817 and longitude -73.066. Stay updated with localized weather information tailored for Suffolk County.
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