Typically, the average weather in Flagstaff throughout the month of October is 8. Through the month the highs are about 18 with lows of 3.1. The table below has further info:
| Month | Degrees Celsius |
|---|---|
| Temperature | 8 |
| High Temperature | 18 |
| Low Temperature | 3.1 |
| Sunshine Per Day | 11 |
Useful Links: Flagstaff Weather: Average Weather & Yearly Climate