Flagstaff Weather in December
Thinking of visiting Flagstaff in December? Expect low temperatures reaching 6°C (43°F) during the day, dropping to -9°C (16°F) at night, and note that quite a bit of snow/rainfall is likely.
Rainfall in Flagstaff in December
The climate data from previous years indicates about 9 days of snow/rain, averaging 67 mm (2.6 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Flagstaff in December
If you're visiting Flagstaff in December, expect highs of 6°C (43°F) and overnight lows around -9°C (16°F). The winter season takes place during December. Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. Nights are well below freezing at -9°C (16°F). An extra blanket is a good idea if you feel the cold, especially in older or less well-heated accommodation. Expect the coldest temperatures of the year this month. Make sure you have enough winter clothing to stay warm.December in Flagstaff has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Flagstaff's climate page.
Flagstaff Temperature in December
Min Temperature
-9°C (16°F)
Max Temperature
6°C (43°F)
Chance of Rain
31%
Precipitation
67 mm (2.6 in)
Rainy days
9 days
Best Places in the United States of America in December
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in December →
perfect weather
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tolerable
unpleasant
poor
What to Wear in Flagstaff in December
We recommend to layer up for chilly conditions in Flagstaff in December. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. Rain is likely on several days, so bring a good rain jacket.What To Do in Flagstaff in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Flagstaff's climate page.
See the full Flagstaff climate overview or explore weather in the United States of America.
