City in Arizona, United States
Flagstaff
Mountain town at 2,100 m on the Colorado Plateau, and the snowiest city in Arizona by a long way.
Flagstaff snow forecast
Out of season.
Forecasts for Flagstaff pause outside the snow season and start again in October. The snow record below shows when it usually snows here.
Where is Flagstaff?
- State
- Arizona
- Country
- United States
- Elevation
- 2,124 m
- Population
- 76,831
When does it snow in Flagstaff?
In Flagstaff, snow falls on about 5 days in March in a typical year, the snowiest month. Snow is regular from November to March.
| January | February | March | April | May | June | July | August | September | October | November | December |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 days | 4 days | 5 days | 2 days | 1 days | 0 days | 0 days | 0 days | 0 days | <1 days | 2 days | 3 days |
Average days each month with at least 1 cm of snowfall, 2016–2025. Calculated from ERA5 reanalysis data.
Snow in Flagstaff month by month
Averages for 2016 to 2025, from ERA5 reanalysis data.
| Month | Snow days | Share of the year's snow | Low to high |
|---|---|---|---|
| January | 5 | 24% | −5 to 5 °C (23 to 41 °F) |
| February | 4 | 23% | −4 to 7 °C (25 to 45 °F) |
| March | 5 | 24% | −1 to 10 °C (30 to 50 °F) |
| April | 2 | 4% | 2 to 16 °C (36 to 61 °F) |
| May | 1 | 3% | 6 to 20 °C (43 to 68 °F) |
| June | 0 | 0% | 13 to 28 °C (55 to 82 °F) |
| July | 0 | 0% | 16 to 29 °C (61 to 84 °F) |
| August | 0 | 0% | 15 to 27 °C (59 to 81 °F) |
| September | 0 | 0% | 12 to 24 °C (54 to 75 °F) |
| October | <1 | 3% | 6 to 18 °C (43 to 64 °F) |
| November | 2 | 9% | 1 to 12 °C (34 to 54 °F) |
| December | 3 | 12% | −3 to 7 °C (27 to 45 °F) |
Snow in Flagstaff in November
In November, Flagstaff gets snow on about 2 days, and the month brings about 9% of the year's snowfall. Daily temperatures usually run from 1 to 12 °C (34 to 54 °F).
Snow in Flagstaff in December
In December, Flagstaff gets snow on about 3 days, and the month brings about 12% of the year's snowfall. Daily temperatures usually run from −3 to 7 °C (27 to 45 °F).
Snow in Flagstaff in January
In January, Flagstaff gets snow on about 5 days, and the month brings about 24% of the year's snowfall. Daily temperatures usually run from −5 to 5 °C (23 to 41 °F).
Snow in Flagstaff in February
In February, Flagstaff gets snow on about 4 days, and the month brings about 23% of the year's snowfall. Daily temperatures usually run from −4 to 7 °C (25 to 45 °F).
Snow in Flagstaff in March
In March, Flagstaff gets snow on about 5 days, and the month brings about 24% of the year's snowfall. Daily temperatures usually run from −1 to 10 °C (30 to 50 °F).
Which winters were snowiest in Flagstaff?
Of the last ten winters in Flagstaff, 2022/23 was the snowiest, about 113% above the ten-year average. The leanest was 2017/18, about 60% below average. The biggest single day of snowfall in the record was 29 November 2019.
| Winter | Compared with average | |
|---|---|---|
| 2016/17 | 121% of average | |
| 2017/18 | 40% of average | |
| 2018/19 | 115% of average | |
| 2019/20 | 100% of average | |
| 2020/21 | 73% of average | |
| 2021/22 | 95% of average | |
| 2022/23 | 213% of average | |
| 2023/24 | 109% of average | |
| 2024/25 | 90% of average | |
| 2025/26 | 44% of average |
Winters are compared with each other rather than given in centimetres. The ERA5 record is reliable on which winters were big and which were lean, but it underestimates absolute snowfall in the mountains, so the resort's own measured totals are the ones to trust for amounts.
Questions about snow in Flagstaff
Does Flagstaff have snow at Christmas?
Flagstaff had at least 2.5 cm (1 in) of snow on the ground on Christmas Day in 3 of the 10 years from 2016 to 2025. Fresh snow fell during 20 to 26 December in 4 of those years.
Does Flagstaff have snow at New Year?
Flagstaff had at least 2.5 cm (1 in) of snow on the ground on New Year's Day in 7 of the 10 years from 2016 to 2025. Fresh snow fell during 27 December to 2 January in 6 of those years.
Does Flagstaff have snow in mid-February?
Flagstaff had at least 2.5 cm (1 in) of snow on the ground on 15 February in 5 of the 10 years from 2016 to 2025. Fresh snow fell during 10 to 20 February in 8 of those years.
Does Flagstaff have snow at Easter?
Flagstaff had at least 2.5 cm (1 in) of snow on the ground on Easter Sunday in 3 of the 10 years from 2016 to 2025. Fresh snow fell during Good Friday to Easter Monday in 3 of those years.
How many days a year does it snow in Flagstaff?
It snows on about 23 days a year in Flagstaff, counting days with at least 1 cm of snowfall, averaged over 2016 to 2025. March has the most, about 5 days.
What is the snowiest month in Flagstaff?
January is the snowiest month in Flagstaff, bringing about 24% of the year's snowfall, based on ERA5 reanalysis data for 2016 to 2025. March has the most snowy days, about 5.
Which recent winter was the snowiest in Flagstaff?
Of the last ten winters in Flagstaff, 2022/23 was the snowiest, about 113% above the ten-year average. The leanest was 2017/18, about 60% below average.
How cold does Flagstaff get in winter?
January is the coldest month in Flagstaff, with average daily lows of −5 °C (23 °F) and highs of 5 °C (41 °F).
Sources: Flagstaff on Wikidata, Elevation from the Open-Meteo terrain model at the city centre coordinates