Mercer County (Princeton)
January
Weather in Mercer County for January 2026
Your guide to Mercer County weather in January - trends and predictions
With an average of 4 snowy days, Mercer County usually enjoys a light touch of snow in January.
In general, the average temperature in Mercer County at the beginning of January is 3.3 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 4.1 °F by the end of January.
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Snow Forecast ❄️
Temperatures
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18
Dry days
9
Rainy days
4
Snow days
4°/-2°
Temperatures
20 km/h
Avg max wind
77 %
Avg humidity
Mercer County Weather January
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  8° | 2  5° | 3 4° | ||||
| 4 3° | 5  2° | 6  1° | 7  0° | 8 1° | 9  7° | 10 8° |
| 11 4° | 12  6° | 13 9° | 14  1° | 15 0° | 16  -1° | 17  -1° |
| 18 1° | 19 1° | 20 -4° | 21 -4° | 22 -2° | 23  0° | 24  2° |
| 25 4° | 26 6° | 27 6° | 28 2° | 29 5° | 30 2° | 31 4° |
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Temperatures trend during January in Mercer 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 | Patchy rain possible | 8° /2° | 26.5 mm | 0 cm | |
| Jan. 2 | Sunny | 5° /-1° | 0 mm | 0 cm | |
| Jan. 3 | Sunny | 4° /-2° | 0 mm | 0 cm | |
| Jan. 4 | Patchy rain possible | 3° /-3° | 0 mm | 0 cm | |
| Jan. 5 | Partly cloudy | 2° /-4° | 0 mm | 0 cm | |
| Jan. 6 | Moderate snow | 1° /-3° | 7.2 mm | 2 cm | |
| Jan. 7 | Heavy snow | 0° /-3° | 1.7 mm | 0.9 cm | |
| Jan. 8 | Partly cloudy | 1° /-3° | 0.2 mm | 0 cm | |
| Jan. 9 | Moderate rain | 7° /-4° | 25.3 mm | 0 cm | |
| Jan. 10 | Patchy rain possible | 8° /-2° | 6.7 mm | 0 cm | |
| Jan. 11 | Partly cloudy | 4° /-1° | 4.9 mm | 3.6 cm | |
| Jan. 12 | Overcast | 6° /-2° | 2 mm | 0 cm | |
| Jan. 13 | Light rain shower | 9° /0° | 9 mm | 0 cm | |
| Jan. 14 | Light snow | 1° /-5° | 0 mm | 0 cm | |
| Jan. 15 | Overcast | 0° /-6° | 0 mm | 0 cm | |
| Jan. 16 | Light snow showers | -1° /-6° | 2 mm | 1.4 cm | |
| Jan. 17 | Cloudy | -1° /-8° | 0 mm | 0 cm | |
| Jan. 18 | Light snow | 1° /-5° | 0.1 mm | 0 cm | |
| Jan. 19 | Heavy snow | 1° /-4° | 3.6 mm | 2.6 cm | |
| Jan. 20 | Light snow | -4° /-10° | 1 mm | 0.7 cm | |
| Jan. 21 | Sunny | -4° /-10° | 0 mm | 0 cm | |
| Jan. 22 | Cloudy | -2° /-10° | 0 mm | 0 cm | |
| Jan. 23 | Mist | 0° /-7° | 0 mm | 0 cm | |
| Jan. 24 | Light drizzle | 2° /-4° | 1.6 mm | 0 cm | |
| Jan. 25 | Light rain | 4° /-1° | 9.4 mm | 0 cm | |
| Jan. 26 | Fog | 6° /0° | 0.5 mm | 0 cm | |
| Jan. 27 | Mist | 6° /-1° | 0.1 mm | 0 cm | |
| Jan. 28 | Light rain | 2° /-1° | 7.2 mm | 0 cm | |
| Jan. 29 | Patchy rain possible | 5° /-1° | 0.8 mm | 0 cm | |
| Jan. 30 | Overcast | 2° /-3° | 0 mm | 0 cm | |
| Jan. 31 | Patchy rain possible | 4° /0° | 6.8 mm | 0 cm | |
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Important Notice
Our weather forecast for Mercer 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 Mercer County forecast closer to your planned date for the most up-to-date weather information.
Mercer County in January - FAQ
What are the expected maximum and minimum temperatures in Mercer County during January?
Brace for cold days with temperatures not exceeding 4° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Mercer County during January?
Significant rainfall exceeding 146.6 mm is expected in Mercer County during January, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Mercer County in January 2026?
Mercer County experiences an average snowfall of 7.87 cm during January, occurring over 4 days.
What are the typical wind conditions in Mercer County during January?
The average wind speed in Mercer County during January is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
Mercer County snow forecast January 2026
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January rainfall patterns in Mercer County
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Where is Mercer County?Get accurate weather forecasts for Mercer County, located at latitude 40.349 and longitude -74.659. Stay updated with localized weather information tailored for Mercer County.
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