Phoenix, Arizona Weather in January
Typical January in Phoenix, Arizona: days around 68°F, nights around 46°F, and the month warms about 3°F from early to late — based on 30-year climate normals (NOAA, 1991–2020), day by day below.
68°Faverage high
46°Faverage low
+3°Fearly vs late January
22°Fday-to-night swing
Early, mid and late January in Phoenix
The month split in three — the part of the answer a 30-row table hides.
| Part of January | Avg high | Avg low |
|---|---|---|
| Early January (Jan 1–10) | 66°F | 45°F |
| Mid January (Jan 11–20) | 68°F | 46°F |
| Late January (Jan 21–31) | 69°F | 47°F |
Daylight in Phoenix during January
How much light the day gives you — useful for planning what you can still do after work.
9 h 59 minon Jan 1
10 h 34 minon Jan 31
+35 mingained across January
Day-by-day January normals for Phoenix
Long-term daily averages (NOAA 1991–2020) — climate, not a live forecast. For the next 16 days, use the live forecast.
| Day | Avg high | Avg low |
|---|---|---|
| Jan 1 | 66°F | 45°F |
| Jan 2 | 66°F | 45°F |
| Jan 3 | 66°F | 45°F |
| Jan 4 | 66°F | 45°F |
| Jan 5 | 66°F | 45°F |
| Jan 6 | 66°F | 45°F |
| Jan 7 | 66°F | 45°F |
| Jan 8 | 67°F | 45°F |
| Jan 9 | 67°F | 45°F |
| Jan 10 | 67°F | 46°F |
| Jan 11 | 67°F | 46°F |
| Jan 12 | 67°F | 46°F |
| Jan 13 | 67°F | 46°F |
| Jan 14 | 68°F | 46°F |
| Jan 15 | 68°F | 46°F |
| Jan 16 | 68°F | 46°F |
| Jan 17 | 68°F | 46°F |
| Jan 18 | 68°F | 46°F |
| Jan 19 | 68°F | 46°F |
| Jan 20 | 68°F | 46°F |
| Jan 21 | 68°F | 46°F |
| Jan 22 | 68°F | 46°F |
| Jan 23 | 68°F | 47°F |
| Jan 24 | 69°F | 47°F |
| Jan 25 | 69°F | 47°F |
| Jan 26 | 69°F | 47°F |
| Jan 27 | 69°F | 47°F |
| Jan 28 | 69°F | 47°F |
| Jan 29 | 69°F | 47°F |
| Jan 30 | 69°F | 47°F |
| Jan 31 | 69°F | 47°F |
January in Phoenix through the years
Real photos taken in Phoenix in January by Weathershot app users — different years, same month.
More months: September · October · November · December · Live Phoenix forecast
January elsewhere: Atlanta weather in January · Chicago weather in January · Denver weather in January · Miami weather in January · New York weather in January · Seattle weather in January
Weathershot
The January photos above were taken with Weathershot — it stamps the real weather onto your picture. Snap one in Phoenix and it could land on this page.
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Climate normals: NOAA 1991–2020 (GHCND). Photos: Weathershot community, taken on location. © Weathershot · Byss Mobile