Pima County (Tucson)
January
Weather in Pima County, Arizona for January 2026
Your guide to Pima County weather in January - trends and predictions
So far, January 2026 in Pima County is slightly warmer than the historical average by 1 °F.
The forecast for the next days in Pima County predicts a temperature of 20.7 °F, which is cooler than the historical average.
In general, the average temperature in Pima County at the beginning of January is 16.4 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 21 °F by the end of January.
The climate of Pima County in January is notably wet, with an average of 12 rainy days, and a total of 42.2 mm of precipitation.
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Temperatures
Rain 🌧️
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19
Dry days
12
Rainy days
0
Snow days
16°/3°
Temperatures
17 km/h
Avg max wind
46 %
Avg humidity
Pima County Weather January
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Temperatures trend during January in Pima County
See the weather trend as well as the moving average line
January weather in Pima County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jan. 1 |  Overcast | 17° /6° | 2.6 mm | 3 | |
| Jan. 2 |  Partly cloudy | 17° /4° | 1.9 mm | 4 | |
| Jan. 3 |  Patchy rain possible | 18° /4° | 0.1 mm | 4 | |
| Jan. 4 | Overcast | 16° /5° | 1.1 mm | 3 | |
| Jan. 5 | Overcast | 16° /3° | 0 mm | 4 | |
| Jan. 6 | Overcast | 16° /2° | 0 mm | 4 | |
| Jan. 7 | Partly cloudy | 15° /5° | 6.6 mm | 3 | |
| Jan. 8 |  Sunny | 14° /3° | 3.8 mm | 3 | |
| Jan. 9 | Sunny | 14° /0° | 0 mm | 4 | |
| Jan. 10 | Sunny | 16° /1° | 0 mm | 4 | |
| Jan. 11 | Sunny | 13° /1° | 0.8 mm | 3 | |
| Jan. 12 | Sunny | 16° /-1° | 0 mm | 4 | |
| Jan. 13 | Sunny | 18° /2° | 0 mm | 4 | |
| Jan. 14 | Sunny | 20° /3° | 0 mm | 4 | |
| Jan. 15 | Partly cloudy | 17° /4° | 3.6 mm | 4 | |
| Jan. 16 | Sunny | 17° /5° | 2.7 mm | 4 | |
| Jan. 17 |  Heavy rain at times | 17° /5° | 2 mm | 4 | |
| Jan. 18 | Sunny | 16° /4° | 0.2 mm | 5 | |
| Jan. 19 | Overcast | 20° /3° | 0 mm | 4 | |
| Jan. 20 | Sunny | 17° /4° | 0 mm | 3 | |
| Jan. 21 | Sunny | 15° /2° | 3.3 mm | 3 | |
| Jan. 22 | Overcast | 17° /3° | 2.2 mm | 3 | |
| Jan. 23 |  Light freezing rain | 13° /3° | 8.3 mm | 3 | |
| Jan. 24 | Sunny | 13° /3° | 12.6 mm | 3 | |
| Jan. 25 | Partly cloudy | 15° /3° | 4.7 mm | 4 | |
| Jan. 26 | Sunny | 17° /1° | 0 mm | 4 | |
| Jan. 27 | Sunny | 18° /2° | 0 mm | 4 | |
| Jan. 28 | Sunny | 27° /7° | 0 mm | 0.8 | |
| Jan. 29 | Partly cloudy | 23° /5° | 0 mm | 0.7 | |
| Jan. 30 | Sunny | 24° /5° | 0 mm | 1 | |
| Jan. 31 | Sunny | 23° /6° | 0 mm | 1 | |
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Important Notice
Our weather forecast for Pima 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 Pima County forecast closer to your planned date for the most up-to-date weather information.
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Pima County in January - FAQ
What are the expected maximum and minimum temperatures in Pima County during January?
During January, expect a variety of temperatures with highs around 16° and lows near 3°, suitable for diverse activities and preferences.
How much rainfall should be expected in Pima County during January?
In January, Pima County can expect light to moderate rainfall, totaling 42.2 mm across approximately 12 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Pima County during January?
The average wind speed in Pima County during January is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
January rainfall patterns in Pima County
Explore the daily rainfall trends and prepare for Pima Countys January weather 💧
Typically, Pima County has 12 rainy days in January with a total of 42.2 mm of rainfall.
UV exposure in Pima County during January
Stay informed about UV levels for safe outdoor activities throughout the month of January ☀️
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