Climate averages 1991–2020
Flagstaff weather
in March.
A cool, moderately wet month: the 9th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a cool month in Flagstaff: daytime highs average 10.7°C and nights cool to about -0.3°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 49 mm of rain on roughly 7 days, which makes March a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 57 min on an average March day.
The nearest other city in this atlas is Surprise (185 km away). In March its highs average 24.3°C, 13.6°C warmer than Flagstaff, with 27 mm of rain.
Among the 498 cities listed in the United States, Flagstaff ranks joint 340th of 498 for the warmest March highs and joint 89th of 498 for the driest March (rainfall, lowest first). The mean March high of those 498 cities is 14.9°C; Flagstaff is 4.2°C cooler than that mean.
From March to April, average highs rise by 4.3°C to 15.0°C, and monthly rainfall falls from 49 mm to 31 mm.
The annual picture
March in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Flagstaff climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.7°C-3.8°C | -3.8°C | 47 | 6.3 | 10.110 h |
| February | 7.0°C-3.0°C | -3.0°C | 50 | 6.9 | 10.911 h |
| March, selected | 10.7°C-0.3°C | -0.3°C | 49 | 7.3 | 11.912 h |
| April | 15.0°C2.8°C | 2.8°C | 31 | 5.6 | 13.113 h |
| May | 20.5°C7.7°C | 7.7°C | 32 | 5.7 | 14.014 h |
| June | 26.8°C13.2°C | 13.2°C | 11 | 3.0 | 14.514 h |
| July | 27.9°C15.9°C | 15.9°C | 115 | 14.7 | 14.314 h |
| August | 26.2°C15.2°C | 15.2°C | 126 | 16.3 | 13.513 h |
| September | 23.3°C12.4°C | 12.4°C | 57 | 8.8 | 12.412 h |
| October | 17.7°C6.9°C | 6.9°C | 33 | 5.2 | 11.311 h |
| November | 11.2°C1.0°C | 1.0°C | 32 | 4.1 | 10.410 h |
| December | 5.7°C-3.6°C | -3.6°C | 41 | 5.8 | 9.810 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
March in nearby cities
- Surprise in MarchUnited States · 185 kmHigh 24.3°C · Low 9.6°C · 27 mm rain
- Peoria (Arizona), United States in MarchUnited States · 188 kmHigh 24.3°C · Low 9.5°C · 23 mm rain
- Scottsdale in MarchUnited States · 189 kmHigh 24.2°C · Low 9.0°C · 26 mm rain
- Glendale (Arizona), United States in MarchUnited States · 191 kmHigh 24.5°C · Low 9.5°C · 23 mm rain
- Mesa in MarchUnited States · 198 kmHigh 24.3°C · Low 8.6°C · 29 mm rain
- Phoenix in MarchUnited States · 198 kmHigh 24.7°C · Low 9.3°C · 26 mm rain
- Tempe in MarchUnited States · 200 kmHigh 24.5°C · Low 9.0°C · 26 mm rain
- Avondale in MarchUnited States · 206 kmHigh 25.2°C · Low 10.0°C · 23 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Flagstaff) is explained once on the Flagstaff year overview and on the Sources, method and limits page.