Phoenix · January
Run in the morning.
Cool month: average high 66°F, low 42°F. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
Avg high / low
66° / 42°F
Humidity
53%
Rain days
6/mo
Wind
9 mph
What January feels like in Phoenix
Sunrise
07:30
Mid-month average
Sunset
17:44
Mid-month average
Time-of-day breakdown
Morning
Steady cool air, low wind, and good light. The standard runner window in most months.
Midday
Mild but UV and traffic peak. Workable if you don't mind shifting your pace.
Evening
Warm and runnable. Crowded routes but the air's typically calm.
What to wear running in Phoenix in January
The kit for January in Phoenix: a long-sleeve or light jacket for the first mile.
January vs the surrounding months
vs December
0° avg high
-1 rain days
Phoenix in December →
January
66°F avg high
6 rain days
Best: morning
vs February
-5° avg high
+2 rain days
Phoenix in February →
Frequently Asked Questions
What is the best time of day to run in Phoenix in January?+
Morning. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
What's the average temperature in Phoenix in January?+
Average high 66°F, average low 42°F.
How does January compare to surrounding months in Phoenix?+
Compared to December (avg high 66°F), January is warmer. Compared to February (avg high 71°F), January is cooler.
Does it rain often in Phoenix in January?+
Expect about 6 measurable rain days in January, on average.