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Weather & Climate
Flagstaff, Arizona, United States
Overview
Climate data and monthly weather averages for Flagstaff.
Key Metrics
Annual Avg
11.8°C
Summer Avg
22.4°C
Winter Avg
1.7°C
Record High
40.1°C
Record Low
-25.5°C
Annual Precipitation
454.9 mm
Avg Humidity
48%
Summer Humidity
41%
Winter Humidity
61%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 20.3° | 1.4° | -25.5° | 46.8 | 62% | 99 | 36.9 |
| Feb | 21.6° | 2.6° | -19.2° | 47.6 | 60% | 118 | 34.6 |
| Mar | 26.4° | 6.5° | -14.4° | 33.2 | 51% | 177 | 38.6 |
| Apr | 30.6° | 10.1° | -9.6° | 17.7 | 42% | 210 | 36.5 |
| May | 35.4° | 15.3° | -3.7° | 14.9 | 36% | 243 | 35.2 |
| Jun | 40° | 21.6° | 3.1° | 6.3 | 26% | 252 | 32 |
| Jul | 40.1° | 23.4° | 8.9° | 69.4 | 46% | 213 | 24 |
| Aug | 39.3° | 22.1° | 7.4° | 67.9 | 51% | 197 | 27 |
| Sep | 37.5° | 18.9° | -0.4° | 36.6 | 46% | 178 | 33.2 |
| Oct | 31.5° | 12.3° | -7.2° | 30.7 | 46% | 148 | 32.1 |
| Nov | 25.7° | 6.3° | -10.9° | 33 | 51% | 109 | 31.5 |
| Dec | 20.6° | 1.1° | -21° | 50.8 | 62% | 87 | 35.5 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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