Jefferson County (Watertown)
January
Weather in Jefferson County for January 2026
Your guide to Jefferson County weather in January - trends and predictions
Jefferson County is transformed into a snow paradise in January, with more than 20 snowy days on average.
In general, the average temperature in Jefferson County at the beginning of January is -1.7 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 0 °F by the end of January.
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Snow Forecast ❄️
Temperatures
More
4
Dry days
6
Rainy days
21
Snow days
-1°/-6°
Temperatures
24 km/h
Avg max wind
89 %
Avg humidity
Jefferson County Weather January
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  2° | 2  0° | 3  -1° | ||||
| 4 -4° | 5  -3° | 6  -3° | 7  -3° | 8 -3° | 9  -1° | 10 2° |
| 11 -1° | 12  0° | 13  2° | 14  -2° | 15 -5° | 16 -4° | 17 -3° |
| 18 -2° | 19 -5° | 20 -10° | 21  -9° | 22 -5° | 23 -2° | 24  -2° |
| 25  -1° | 26 1° | 27 1° | 28 0° | 29 -2° | 30 -1° | 31 2° |
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Temperatures trend during January in Jefferson County
See the weather trend as well as the moving average line
January weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Jan. 1 | Moderate rain | 2° /0° | 30.7 mm | 0 cm | |
| Jan. 2 | Blowing snow | 0° /-1° | 20.2 mm | 0 cm | |
| Jan. 3 | Overcast | -1° /-4° | 0 mm | 0 cm | |
| Jan. 4 | Overcast | -4° /-6° | 0 mm | 0 cm | |
| Jan. 5 | Moderate snow | -3° /-9° | 10.5 mm | 7.6 cm | |
| Jan. 6 | Light snow | -3° /-8° | 0 mm | 0 cm | |
| Jan. 7 | Moderate or heavy snow showers | -3° /-7° | 5.2 mm | 3.7 cm | |
| Jan. 8 | Moderate snow | -3° /-8° | 1.8 mm | 1.3 cm | |
| Jan. 9 | Light sleet | -1° /-9° | 7 mm | 0 cm | |
| Jan. 10 | Moderate or heavy snow showers | 2° /-5° | 3.5 mm | 0.2 cm | |
| Jan. 11 | Moderate or heavy snow showers | -1° /-4° | 7.5 mm | 5.4 cm | |
| Jan. 12 | Light freezing rain | 0° /-6° | 3.4 mm | 2.5 cm | |
| Jan. 13 | Heavy snow | 2° /-3° | 11.6 mm | 2.6 cm | |
| Jan. 14 | Blizzard | -2° /-5° | 7.8 mm | 0.8 cm | |
| Jan. 15 | Heavy snow | -5° /-9° | 4.8 mm | 2.1 cm | |
| Jan. 16 | Moderate or heavy snow showers | -4° /-11° | 2.4 mm | 1.7 cm | |
| Jan. 17 | Heavy snow | -3° /-11° | 7.1 mm | 4.2 cm | |
| Jan. 18 | Moderate snow | -2° /-8° | 14.2 mm | 6.8 cm | |
| Jan. 19 | Light snow | -5° /-12° | 4.5 mm | 3.2 cm | |
| Jan. 20 | Moderate or heavy snow showers | -10° /-15° | 2.5 mm | 1.8 cm | |
| Jan. 21 | Freezing fog | -9° /-15° | 22.6 mm | 16.3 cm | |
| Jan. 22 | Moderate snow | -5° /-16° | 1.4 mm | 1 cm | |
| Jan. 23 | Heavy snow | -2° /-7° | 4.5 mm | 3.2 cm | |
| Jan. 24 | Light drizzle | -2° /-8° | 5.8 mm | 1.6 cm | |
| Jan. 25 | Fog | -1° /-8° | 0.5 mm | 0 cm | |
| Jan. 26 | Moderate rain | 1° /-3° | 10.6 mm | 2.8 cm | |
| Jan. 27 | Light snow | 1° /-3° | 2.9 mm | 2 cm | |
| Jan. 28 | Moderate snow | 0° /-7° | 10.7 mm | 1.2 cm | |
| Jan. 29 | Moderate snow | -2° /-7° | 7.7 mm | 5.5 cm | |
| Jan. 30 | Overcast | -1° /-9° | 0 mm | 0 cm | |
| Jan. 31 | Overcast | 2° /-4° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Jefferson 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 Jefferson County forecast closer to your planned date for the most up-to-date weather information.
Jefferson County in January - FAQ
What are the expected maximum and minimum temperatures in Jefferson County during January?
Brace for cold days with temperatures not exceeding -1° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Jefferson County during January?
Significant rainfall exceeding 204.1 mm is expected in Jefferson County during January, occurring over more than 6 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Jefferson County in January 2026?
Jefferson County experiences an average snowfall of 53.8 cm during January, occurring over 21 days.
What are the typical wind conditions in Jefferson County during January?
The average wind speed in Jefferson County during January is 24 km/h, suggesting breezy to windy conditions, depending on your activities.
Jefferson County snow forecast January 2026
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January rainfall patterns in Jefferson County
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Where is Jefferson County?Get accurate weather forecasts for Jefferson County, located at latitude 43.975 and longitude -75.911. Stay updated with localized weather information tailored for Jefferson County.
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