New Castle County (Newark)
January
Weather in New Castle County for January 2026
Your guide to New Castle County weather in January - trends and predictions
With an average of 3 snowy days, New Castle County usually enjoys a light touch of snow in January.
In general, the average temperature in New Castle County at the beginning of January is 3.6 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 5.9 °F by the end of January.
New Castle County experiences moderate rainfall in January, with an average of 10 rainy days and a total precipitation of 131 mm.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
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18
Dry days
10
Rainy days
3
Snow days
5°/-2°
Temperatures
21 km/h
Avg max wind
78 %
Avg humidity
New Castle County Weather January
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  8° | 2  5° | 3  5° | ||||
| 4 3° | 5  2° | 6  0° | 7  2° | 8 1° | 9  8° | 10 8° |
| 11 5° | 12 6° | 13 9° | 14  1° | 15 0° | 16  -1° | 17  -1° |
| 18  2° | 19 1° | 20 -3° | 21 -4° | 22 -2° | 23  -0° | 24  3° |
| 25 7° | 26 7° | 27 7° | 28 4° | 29 5° | 30 4° | 31 7° |
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Temperatures trend during January in New Castle 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° | 3.4 mm | 0 cm | |
| Jan. 2 | Sunny | 5° /0° | 0 mm | 0 cm | |
| Jan. 3 | Partly cloudy | 5° /-1° | 0.6 mm | 0.5 cm | |
| Jan. 4 | Patchy rain possible | 3° /-3° | 0 mm | 0 cm | |
| Jan. 5 | Overcast | 2° /-5° | 0 mm | 0 cm | |
| Jan. 6 | Light sleet | 0° /-3° | 18.8 mm | 7.4 cm | |
| Jan. 7 | Fog | 2° /-4° | 1 mm | 0.6 cm | |
| Jan. 8 | Sunny | 1° /-4° | 0 mm | 0 cm | |
| Jan. 9 | Moderate rain | 8° /-4° | 23.5 mm | 0 cm | |
| Jan. 10 | Patchy rain possible | 8° /-1° | 0.5 mm | 0 cm | |
| Jan. 11 | Partly cloudy | 5° /-2° | 6 mm | 4.4 cm | |
| Jan. 12 | Overcast | 6° /-3° | 1.2 mm | 0 cm | |
| Jan. 13 | Patchy rain possible | 9° /-1° | 3.5 mm | 0 cm | |
| Jan. 14 | Light snow | 1° /-5° | 0 mm | 0 cm | |
| Jan. 15 | Partly cloudy | 0° /-6° | 0 mm | 0 cm | |
| Jan. 16 | Moderate or heavy snow showers | -1° /-8° | 2.3 mm | 1.9 cm | |
| Jan. 17 | Cloudy | -1° /-8° | 0 mm | 0 cm | |
| Jan. 18 | Moderate snow | 2° /-6° | 0.4 mm | 0.3 cm | |
| Jan. 19 | Moderate or heavy snow showers | 1° /-3° | 2.9 mm | 2.5 cm | |
| Jan. 20 | Light snow | -3° /-10° | 0.1 mm | 0 cm | |
| Jan. 21 | Partly cloudy | -4° /-10° | 0 mm | 0 cm | |
| Jan. 22 | Mist | -2° /-12° | 0 mm | 0 cm | |
| Jan. 23 | Freezing fog | 0° /-8° | 0 mm | 0 cm | |
| Jan. 24 | Light drizzle | 3° /-4° | 1.9 mm | 0 cm | |
| Jan. 25 | Moderate rain | 7° /-2° | 4.4 mm | 0 cm | |
| Jan. 26 | Light drizzle | 7° /2° | 0.5 mm | 0 cm | |
| Jan. 27 | Overcast | 7° /0° | 1.8 mm | 0 cm | |
| Jan. 28 | Moderate rain | 4° /0° | 13.5 mm | 0 cm | |
| Jan. 29 | Overcast | 5° /0° | 0 mm | 0 cm | |
| Jan. 30 | Cloudy | 4° /-2° | 0 mm | 0 cm | |
| Jan. 31 | Patchy rain possible | 7° /1° | 14.4 mm | 0 cm | |
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Important Notice
Our weather forecast for New Castle 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 New Castle County forecast closer to your planned date for the most up-to-date weather information.
New Castle County in January - FAQ
What are the expected maximum and minimum temperatures in New Castle County during January?
Brace for cold days with temperatures not exceeding 5° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in New Castle County during January?
Significant rainfall exceeding 131 mm is expected in New Castle County during January, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
Will it snow in New Castle County in January 2026?
New Castle County experiences an average snowfall of 9.51 cm during January, occurring over 3 days.
What are the typical wind conditions in New Castle County during January?
The average wind speed in New Castle County during January is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
New Castle County snow forecast January 2026
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January rainfall patterns in New Castle County
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Where is New Castle County?Get accurate weather forecasts for New Castle County, located at latitude 39.684 and longitude -75.75. Stay updated with localized weather information tailored for New Castle County.
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