Boston
January
Weather in Boston for January 2026
Your guide to Boston weather in January - trends and predictions
In general, the average temperature in Boston at the beginning of January is 6.4 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 6.6 °C by the end of January.
The climate of Boston in January is notably wet, with an average of 13 rainy days, and a total of 68.6 mm of precipitation.
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Temperatures
Rain 🌧️
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18
Dry days
13
Rainy days
0
Snow days
6°/1°
Temperatures
22 km/h
Avg max wind
86 %
Avg humidity
Boston Weather January
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Temperatures trend during January in Boston
See the weather trend as well as the moving average line
January weather in Boston day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Jan. |  Heavy rain at times | 11° /2° | 6.6 mm | 3 | |
| 2 Jan. |  Overcast | 3° /0° | 0 mm | 1 | |
| 3 Jan. | Overcast | 4° /-1° | 0 mm | 1 | |
| 4 Jan. | Overcast | 2° /0° | 0.5 mm | 1 | |
| 5 Jan. | Heavy rain at times | 11° /1° | 17 mm | 3 | |
| 6 Jan. |  Moderate or heavy rain shower | 11° /0° | 18.4 mm | 3 | |
| 7 Jan. | Overcast | 3° /0° | 0 mm | 1 | |
| 8 Jan. | Overcast | 2° /-1° | 0 mm | 1 | |
| 9 Jan. |  Sunny | 2° /-1° | 0 mm | 2 | |
| 10 Jan. | Overcast | 2° /-1° | 0 mm | 1 | |
| 11 Jan. | Sunny | 4° /-2° | 0 mm | 2 | |
| 12 Jan. | Overcast | 3° /-2° | 0 mm | 1 | |
| 13 Jan. | Overcast | 4° /0° | 0 mm | 1 | |
| 14 Jan. | Overcast | 9° /2° | 0 mm | 2 | |
| 15 Jan. |  Partly cloudy | 10° /4° | 0 mm | 4 | |
| 16 Jan. | Sunny | 7° /3° | 0 mm | 3 | |
| 17 Jan. | Sunny | 7° /2° | 0 mm | 3 | |
| 18 Jan. | Sunny | 4° /0° | 0 mm | 2 | |
| 19 Jan. | Sunny | 4° /0° | 0 mm | 2 | |
| 20 Jan. | Overcast | 4° /0° | 0 mm | 1 | |
| 21 Jan. | Overcast | 4° /1° | 0.6 mm | 1 | |
| 22 Jan. |  Patchy rain possible | 4° /2° | 0.8 mm | 1 | |
| 23 Jan. | Moderate rain at times | 6° /0° | 1.1 mm | 2 | |
| 24 Jan. | Moderate rain at times | 10° /3° | 2.9 mm | 3 | |
| 25 Jan. | Overcast | 5° /1° | 0.6 mm | 2 | |
| 26 Jan. | Heavy rain at times | 6° /0° | 3.5 mm | 2 | |
| 27 Jan. | Overcast | 8° /5° | 7.8 mm | 2 | |
| 28 Jan. | Heavy rain at times | 8° /5° | 5.8 mm | 2 | |
| 29 Jan. | Overcast | 7° /3° | 0 mm | 2 | |
| 30 Jan. | Sunny | 7° /0° | 0 mm | 3 | |
| 31 Jan. |  Light rain | 5° /2° | 3 mm | 2 | |
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Important Notice
Our weather forecast for Boston 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 Boston forecast closer to your planned date for the most up-to-date weather information.
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Boston in January - FAQ
What are the expected maximum and minimum temperatures in Boston during January?
Prepare for cooler days with highs just around 6° and colder nights, dipping below 1°.
How much rainfall should be expected in Boston during January?
Moderate rainfall is anticipated in Boston during January, with a total of 68.6 mm spread over approximately 13 days. Considering plans for rainy days is advisable.
Will it snow in Boston in January 2026?
Boston typically sees 0 cm of snowfall during January.
What are the typical wind conditions in Boston during January?
The average wind speed in Boston during January is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
January rainfall patterns in Boston
Explore the daily rainfall trends and prepare for Bostons January weather 💧
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