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Top 5 Must-Do's in Flagstaff, Arizona
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Weather · December
Flagstaff weather in December
Average highs of 43°F, lows of 17°F and 1.9 in of rain, from 30 years of weather records.
December is Flagstaff’s coldest month, with average highs of 43°F and lows of 17°F. That is 9° cooler than November, and 19° below the yearly average high.
- Average high
- 43°F
- Average low
- 17°F
- Precipitation
- 1.9 in
- Wet days
- 7
- Snow
- 18.5 in
- Sunrise · sunset
- 7:27 AM · 5:15 PM
December across the year
High and low Rain
What to wear in December
- Cold days: a winter coat, hat and gloves.
- Freezing nights: expect frost on cars in the morning.
- Snow is likely (about 19 inches on average): waterproof boots help.
December is good for
What’s on in Flagstaff in December
- Christmas at Riordan Mansion and Christmas Twilight ToursDecember 1 – January 6 · Riordan Mansion State Historic Park, near NAU
- The Nutcracker Ballet with the Flagstaff SymphonyDecember 4 – December 5 · 7:30 p.m. Dec. 4 and 5; Lollipop Matinee 2 p.m. Dec. 5 · NAU Ardrey Memorial Auditorium, Flagstaff
- Snowflake Festival at the Flagstaff Visitor CenterSaturday, December 5 · 10 a.m.-1 p.m. · Flagstaff Visitor Center, historic train station, Route 66
- Winter Movie Series at the OrpheumDecember 5 – December 19 · Doors 9 a.m., movie 9:30 a.m. · Orpheum Theater, Downtown Flagstaff
- Winter Wonderland & Tree LightingSaturday, December 5 · 2:30-7 p.m.; tree lighting at dusk · Heritage Square, Downtown Flagstaff
- Storytime with SantaDecember 6 – December 20 · 9-10 a.m. Sundays · Downtown Flagstaff coffee shops
- Holiday Parade of LightsSaturday, December 12 · 6-8 p.m. · Historic Downtown Flagstaff, starting at Beaver and Elm
- Strolling With Santa and Luminaria Walk at Riordan MansionDecember 20 – December 23 · Santa 4-6 p.m. Dec. 20; luminarias 5-6 p.m. Dec. 20-23 · Riordan Mansion State Historic Park, near NAU
- Great Pinecone DropThursday, December 31 · 10 p.m. and midnight (plus a noon drop) · The Weatherford Hotel, Historic Downtown Flagstaff
See all upcoming events and school days off.
Around Flagstaff
See Flagstaff
A look around town before you go.
THINGS TO DO · YOUTUBE SHORT
Best Things to Do in Flagstaff, AZ! 🌲
A local activity Short shared by Plates and Paradise.
Watch on YouTube ↗December compared with the months around it
Planning a trip? See the best time to visit Flagstaff and today’s forecast.
Questions
How hot does it get in Flagstaff in December?
Average highs are 43°F and average lows 17°F, for a daily mean of 30°F. Individual days run hotter or colder than these 30-year averages.
Does it rain in Flagstaff in December?
December averages 1.9 in of precipitation over about 7 days with at least 0.01 in. It is the 6th wettest month of the year.
Does it snow in Flagstaff in December?
Yes, about 18.5 in of snow on average.
What time is sunset in Flagstaff in December?
Around mid-December the sun rises about 7:27 AM and sets about 5:15 PM, for roughly 9.8 hours of daylight.
Is December a good time to visit Flagstaff?
The mildest months for visiting are May, June, September. December is cold, with Christmas lights and New Year’s Eve events.
NOAA U.S. Climate Normals 1991–2020, Flagstaff Pulliam Ap station (3.6 mi from downtown). Sunrise and sunset are calculated for December 15 at the city’s coordinates.