Tucson, AZ weather in January
In January, Tucson sees highs around 67°F and lows around 41°F: mild and mostly dry. Expect about 4 wet days. It is one of the coolest months in Tucson. Great for outdoor plans.
- Normal high
- 67°F
- Normal low
- 41°F
- Wet days
- 4
- 0.8 in total
- Muggy days
- 0
- dew point 65°F+
How January changes from start to finish
| January 1 | January 31 | |
|---|---|---|
| Normal high | 65°F | 68°F |
| Normal low | 40°F | 42°F |
| Chance of a wet day | 14% | 13% |
| Sunrise / sunset | 7:24 am / 5:29 pm | 7:18 am / 5:56 pm |
| Daylight | 10.1 h | 10.6 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Arizona time (no daylight saving)).
A typical January day
- 6 am43°Fdew point 28°F
- 9 am49°Fdew point 29°F
- Noon61°Fdew point 29°F
- 3 pm65°Fdew point 26°F
- 6 pm59°Fdew point 29°F
- 9 pm51°Fdew point 30°F
NOAA hourly normals (local standard time) from Davis Monthan AFB (5 mi away); average wind 7 mph; clear or few clouds in 66% of daytime hours, mostly cloudy or overcast in 27%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F19 of 31
- Hot dayshigh 90°F or more0 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow4 of 31
- Notable rainat least 0.10 in2 of 31
- Freezing nightslow 32°F or below4 of 31
Average days per January, counted from daily records for each year 1991-2020.
Rain in January
Normal precipitation is 0.8 in; a dry January brings about 0.09 in and a wet one about 1.2 in (25th and 75th percentiles). About 1 day brings half an inch or more. Snow is very rare.
How January varies from year to year
- Warmest January, 1991-20202018: average high 74°F
- Coolest January2007: average high 61°F
- Wettest January1993: 4.8 in
- Driest January2006: no measurable precipitation
- Highest reading87°F (January 24, 1999)
- Lowest reading17°F (January 15, 2013)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
January compared with December and February
| December | January | February | |
|---|---|---|---|
| Normal high | 66°F | 67°F | 69°F |
| Normal low | 41°F | 41°F | 43°F |
| Wet days | 4 | 4 | 4 |
| Comfortable days | 18 | 19 | 17 |
| Daylight | 10.1 h | 10.3 h | 11.1 h |
Highs change by +1°F from December and +2°F into February.
Nearby alternatives in January
- Cooler: Sedona, AZ189 mi · high 58°F · 6 wet days
How Tucson ranks in January
- Normal high59th warmest of 378 cities; 6th of 13 in Arizona
- Wet days25th driest of 378
- Comfortable days14th most of 339
What to pack for Tucson in January
- Layers – afternoons near 67°F but nights near 41°F
Heating and cooling
January has 353 heating degree days and 1 cooling degree days (base 65°F), 7% of the year's total heating and cooling demand.
Questions
How cold is Tucson in January?
The normal high is 67°F and the normal low is 41°F. From 1991 to 2020 the coldest January reading was 17°F (January 15, 2013).
Does it rain a lot in Tucson in January?
About 4 days in January have at least 0.01 in of precipitation, and the normal total is 0.8 in. The wettest January in 1991-2020 was in 1993 (4.8 in); the driest was in 2006, with no measurable precipitation.
Is January a good time to visit Tucson?
January ranks 2nd of 12 months on our comfort score for Tucson (71 out of 100). It has about 19 comfortable days. The best months are January, February and March.
Where the numbers come from
- Temperature, rain, snowfall, snow depth and frost dates: Tucson Intl Airport (USW00023160), 6.5 mi SSW of the city center, 2,549 ft (68 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: Davis Monthan AFB (USW00023109), 4.6 mi SSE of the city center, 2,654 ft (173 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Tucson International Airport (722740-23160), 6.4 mi SSW of the city center, 2,551 ft (70 ft higher than the city). Hourly observations, 1991-2020.