Flagstaff has four real seasons. Snow comes from December to March, June and September bring warm, dry days, and summer afternoons bring thunderstorms. In an average year the town gets about 90 inches of snow.
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Weather by monthFlagstaff, November 2008 · Photo: Deborah Lee Soltesz / Wikimedia Commons, CC0 1.0 · Credits
Average daily highs and lows in °F. These are long-term averages, not a forecast, and any single week can be warmer, colder or snowier.
| MonthMonth | Flagstaff high / lowHigh / low | SnowSnow | Rain and snowmeltPrecip. | Williams high / lowWilliams |
|---|---|---|---|---|
| January | 43° / 18° | 20.9 in | 2.05 in | 47° / 21° |
| February | 46° / 20° | 19.3 in | 2.17 in | 49° / 23° |
| March | 52° / 24° | 15.6 in | 1.88 in | 56° / 27° |
| April | 59° / 28° | 5 in | 0.89 in | 62° / 31° |
| May | 68° / 35° | 1.1 in | 0.77 in | 71° / 39° |
| June | 79° / 42° | – | 0.3 in | 82° / 48° |
| July | 82° / 51° | – | 2.61 in | 84° / 54° |
| August | 79° / 51° | – | 3.04 in | 82° / 52° |
| September | 74° / 42° | – | 1.84 in | 76° / 47° |
| October | 64° / 32° | 1.5 in | 1.52 in | 67° / 36° |
| November | 52° / 23° | 8.2 in | 1.55 in | 56° / 28° |
| December | 43° / 17° | 18.5 in | 1.9 in | 47° / 21° |
Flagstaff: Pulliam Airport weather station. Williams: the town's weather station, west of Flagstaff.
December to March
Snow on the ground, Snowbowl open, sledding and tubing for the kids. December through March each average 15 to 21 inches of snow at the airport, and nights fall well below freezing. Winter driving calls for chains or a car built for snow, and the overnight parking ban applies in town.
April and May
Spring is dry: May averages less than an inch of precipitation. Days warm to the 60s, but nights stay near freezing, and April can still bring a few inches of snow.
June to August
Highs around 80°F, and nights in the 40s and 50s. June is the driest month of the year. Monsoon season officially runs from June 15 to September 30, and July and August are the wettest months, with afternoon and evening thunderstorms.
September to November
September is still warm, with highs in the mid-70s. By October the nights drop to around freezing, and November usually brings the first real snow. It's a good season for hiking and for day trips to the Grand Canyon.
For today's snow, the cameras help: the live downtown camera, the ADOT road cameras on I-17 and I-40, and Snowbowl's three mountain cams are all among the Flagstaff webcams.
Snow in town and snow on the mountain are two different things. Snowbowl, at 9,200 feet and up, can have snow when the streets downtown are clear. Road conditions and chain rules are on az511.gov or 511.
Summer mornings are usually clear, so start hikes early and be off exposed ridges by early afternoon. When the forest is dry, the Coconino National Forest sets fire restrictions in stages, and campfires can be banned altogether.
The current stage decides whether you can light a camp stove or a grill. The stage is set by an order for a specific area, and it changes during the season.
From December to March, when the snow comes, an indoor pool makes the evenings easier.
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Every room is a suite with a sofa bed, breakfast is free, and the indoor pool is open until 11 pm.
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Little America FlagstaffEast Flagstaff and Route 66 9.8/10 on Expedia · 4,179 reviewsFree parkingPets: dogs and catsBreakfast extraCheck pricesThe live Flagstaff webcams show downtown, the highways and the Snowbowl slopes. Snow usually starts in November and lasts into April.
Mostly from November to April. December, January, February and March are the snowiest months, with 15.6 to 20.9 inches each on average at the airport. May and October see an inch or so.
About 90 inches in an average year at Flagstaff Pulliam Airport (NOAA normals, 1991–2020).
July, with an average high of 82°F and lows around 51°F. It's also one of the wettest months because of the monsoon storms.
December and January, with average highs around 43°F and lows of about 17°F.
No. The Forest Service has closed the West Fork area until February 28, 2027, unless the order is lifted sooner.
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