Weather in Phoenix in January 2025
- January is usually the coldest month of the year in Phoenix;
Average weather
Average temperature in Phoenix in January
The temperature in January is +64°F on average, with a range between a maximum of +75°F during the day and a minimum of +36°F at night.
The average maximum temperature goes down 5% by the end of the month, compared with the beginning of the month, from +64°F to +63°F.
Is Phoenix warm or cold in January?
Phoenix is typically mild in January.
Maximum temperatures go up compared to the previous month from +68°F to +68°F. The minimum temperature also goes up from +45°F to +45°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
January is the coldest month in Phoenix, here is the comparison with other months:
Climate in Phoenix in January
| December | January | February | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +68°F | +68°F | +73°F | ||||
| Min. temperature | ||||||
| +27°F | +28°F | +30°F | ||||
| Max. temperature | ||||||
| +84°F | +86°F | +91°F | ||||
| Rainfall | ||||||
| 34 mm | 33 mm | 32 mm | ||||
| Wind | ||||||
| 1 m/s | 1 m/s | 1 m/s | ||||
| Humidity | ||||||
| 48% | 47% | 42% | ||||
| Air pressure | ||||||
| 1017 HPa | 1017 HPa | 1015 HPa | ||||
| Sunny days | ||||||
| 12 | 11 | 10 | ||||
| Cloudy days | ||||||
| 13 | 14 | 13 | ||||
| Rainy days | ||||||
| 5 | 6 | 5 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
January weather is still as good as in December. The temperature levels stay the same in the area of +68°F for average maximum temperature during the day. As January arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 34 mm to 33 mm. It feels drier, as humidity decreases from 48% to 47%. The average wind speed doesn’t change much during January, staying around 1 m/s. The days becoming less sunny, going from 12 sunny days in December to 11 in January.
February brings much the same weather, it remains good.
Wind
The average wind speed is 2 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Phoenix is gradually decreasing during January, going from 3 m/s to 1 m/s over the course of the month.
Rain
How was the weather last January in Phoenix?
Climate Change Over the Years
The climate in Phoenix in January has not changed that much over the last 43 years.
The average temperature was the lowest in 1982 (+86°F) and the highest in 1989 (+91°F). The driest year was 2009 with only 125 mm of rainfall, and the wettest year was 1984 with 660 mm.
FAQ
Is January a good time to visit Phoenix?
Can you sunbathe in Phoenix in January?
Is Phoenix rainy in January?
Is it sunny in Phoenix in January?
Other cities in USA
Monthly weather in Phoenix
Source of the data
For this page, we’ve looked at the typical weather in Phoenix, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.