Flagstaff in January
In January, Flagstaff averages 6°C (42°F) during the day and -4°C (24°F) at night, with around 7 days of rain (48 mm total).
ShoulderConditions are cold — pack winter layers. Occasional showers are likely but won't dominate.
January in Flagstaff is outside the typical sweet spot for sightseeing weather. It can still be a great time to visit if you have specific reasons (festivals, off-season pricing, etc.).
How January compares to the rest of the year in Flagstaff
January is one of the coolest months in Flagstaff (12th of 12) and one of the wettest months (3rd of 12). Daytime temperature runs 11°C below the annual average (17°C). January runs 1°C cooler than December (6°C) and warms a further 2°C into February (8°C).
January sunrise & sunset in Flagstaff
Times shown for Flagstaff local time (America/Phoenix), calculated for the 15th of January. They shift by a few minutes day to day across the month.
Photography light in Flagstaff — January
Golden-hour and blue-hour windows for the 15th of January, in Flagstaff's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Flagstaff in January
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on January's tier (Shoulder) and Flagstaff's popularity.
January in United States — events that affect travel
Known cultural, religious, or national events that surge prices, fill hotels, or close businesses during this month. Plan around them, or build your itinerary around the ones you'd like to see.
Major travel surge plus widespread Dec 24-26 and Jan 1 business closures.
Plan: Book flights and hotels well ahead; expect many restaurants/shops closed Dec 25 and Jan 1.
Crowds & pricing — January in Flagstaff
Flagstaff is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Sun & mosquito risk — January in Flagstaff
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
🌬 Frosty nights — Flagstaff in January
Gear: Cold nights, milder days. Light insulated jacket fine for daytime, real coat for after dark.
Flagstaff in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 6°C / 42°F | -4°C / 24°F | 48 mm | 7 | — |
| February | 8°C / 46°F | -3°C / 26°F | 44 mm | 5 | — |
| March | 11°C / 51°F | -1°C / 31°F | 51 mm | 7 | — |
| April | 17°C / 62°F | 3°C / 38°F | 15 mm | 4 | — |
| May | 20°C / 68°F | 7°C / 44°F | 30 mm | 7 | — |
| June | 28°C / 82°F | 13°C / 56°F | 11 mm | 3 | — |
| July | 28°C / 83°F | 16°C / 60°F | 72 mm | 13 | — |
| August | 27°C / 80°F | 15°C / 58°F | 71 mm | 12 | — |
| September | 24°C / 75°F | 12°C / 54°F | 39 mm | 7 | — |
| October | 18°C / 64°F | 6°C / 43°F | 27 mm | 6 | — |
| November | 12°C / 53°F | 1°C / 34°F | 29 mm | 4 | — |
| December | 6°C / 44°F | -3°C / 27°F | 41 mm | 6 | — |
Other cities with similar January weather
🌍 See the full ranked list of climate twins for Flagstaff in January →
Frequently asked questions
How hot is Flagstaff in January?
In January, Flagstaff averages a high of 6°C (42°F) and a low of -4°C (24°F) — generally cold.
Does it rain a lot in Flagstaff in January?
January sees occasional rain in Flagstaff, with about 7 rainy days on average.
Is January a good time to visit Flagstaff?
January is cold. It suits travelers who are comfortable with cold weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Flagstaff in January?
Pack heavy winter layers, a coat, hat and gloves. See the full January packing list for Flagstaff for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.