Ada County (Boise)
January
Weather in Ada County for January 2025
Your guide to Ada County weather in January - trends and predictions
In general, the average temperature in Ada County at the beginning of January is 2.1 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 4.6 °F by the end of January.
Expect heavy snowfall in Ada County during January, with an average of 16 snowy days.
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10
Dry days
5
Rainy days
16
Snow days
1°/-4°
Temperatures
13 km/h
Avg max wind
89 %
Avg humidity
Ada County in January average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  3° | 2 5° | 3  2° | 4 2° | 5  3° | ||
| 6 1° | 7  -1° | 8  -2° | 9 0° | 10  -1° | 11 0° | 12 0° |
| 13 -6° | 14  -8° | 15  -6° | 16 -7° | 17 0° | 18  2° | 19 2° |
| 20 1° | 21  2° | 22 3° | 23 2° | 24  2° | 25 2° | 26 1° |
| 27  2° | 28 3° | 29  7° | 30 7° | 31 10° |
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Temperatures trend during January in Ada 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 | Sunny | 3° /0° | 0 mm | 0 cm | |
| Jan. 2 | Sunny | 5° /-1° | 0 mm | 0 cm | |
| Jan. 3 | Overcast | 2° /-1° | 0 mm | 0 cm | |
| Jan. 4 | Overcast | 2° /-2° | 0.6 mm | 0.5 cm | |
| Jan. 5 | Heavy snow | 3° /-2° | 1.4 mm | 1.1 cm | |
| Jan. 6 | Heavy snow | 1° /-5° | 6.3 mm | 5.4 cm | |
| Jan. 7 | Partly cloudy | -1° /-8° | 0 mm | 0 cm | |
| Jan. 8 | Moderate snow | -2° /-7° | 3.2 mm | 2.7 cm | |
| Jan. 9 | Heavy snow | 0° /-4° | 11.5 mm | 9.3 cm | |
| Jan. 10 | Moderate or heavy snow showers | -1° /-8° | 6.7 mm | 5.6 cm | |
| Jan. 11 | Moderate snow | 0° /-9° | 1.2 mm | 0.7 cm | |
| Jan. 12 | Heavy snow | 0° /-3° | 11.6 mm | 7 cm | |
| Jan. 13 | Heavy snow | -6° /-13° | 15.5 mm | 13.1 cm | |
| Jan. 14 | Light snow | -8° /-15° | 3.9 mm | 3.2 cm | |
| Jan. 15 | Mist | -6° /-14° | 0 mm | 0 cm | |
| Jan. 16 | Mist | -7° /-16° | 0.1 mm | 0 cm | |
| Jan. 17 | Heavy snow | 0° /-8° | 14.5 mm | 12.3 cm | |
| Jan. 18 | Light freezing rain | 2° /0° | 2.5 mm | 0 cm | |
| Jan. 19 | Moderate snow | 2° /0° | 1.3 mm | 0.1 cm | |
| Jan. 20 | Heavy snow | 1° /-1° | 3.2 mm | 2.7 cm | |
| Jan. 21 | Light sleet | 2° /0° | 6.2 mm | 0 cm | |
| Jan. 22 | Fog | 3° /0° | 3.6 mm | 0 cm | |
| Jan. 23 | Light snow | 2° /0° | 3.3 mm | 0 cm | |
| Jan. 24 | Freezing fog | 2° /-1° | 0.2 mm | 0.1 cm | |
| Jan. 25 | Heavy snow | 2° /-3° | 5.6 mm | 1.8 cm | |
| Jan. 26 | Mist | 1° /-6° | 0 mm | 0 cm | |
| Jan. 27 | Light drizzle | 2° /0° | 4.8 mm | 0 cm | |
| Jan. 28 | Light drizzle | 3° /1° | 1.2 mm | 0 cm | |
| Jan. 29 | Patchy rain possible | 7° /1° | 0 mm | 0 cm | |
| Jan. 30 | Sunny | 7° /0° | 0 mm | 0 cm | |
| Jan. 31 | Sunny | 10° /2° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Ada 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 Ada County forecast closer to your planned date for the most up-to-date weather information.
Ada County in January - FAQ
What are the expected maximum and minimum temperatures in Ada 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 Ada County during January?
Significant rainfall exceeding 108.4 mm is expected in Ada County during January, occurring over more than 5 days. Preparing for wet conditions is recommended in your planning.
Is snowfall common in Ada County during January?
Ada County experiences an average snowfall of 65.6 cm during January, occurring over 16 days, which may interest winter sports enthusiasts.
What are the typical wind conditions in Ada County during January?
The average wind speed in Ada County during January is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
January rainfall patterns in Ada County
Explore the daily rainfall trends and prepare for Ada Countys January weather 💧
January snowfall in Ada County
Track daily snowfall levels and discover Ada County’s snowy potential this January ❄️
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Where is Ada County?Get accurate weather forecasts for Ada County, located at latitude 43.614 and longitude -116.203. Stay updated with localized weather information tailored for Ada County.
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