Rainfall totals Flagstaff, AZ
Through Oct 7, 2026, Flagstaff has received 13.17 inches of rain for the year, according to the official daily climate report. The normal year-to-date total is 15.88 inches. The normal figure is what the city would typically have seen by this point in the calendar. This reading comes from the station gauge at FLAGSTAFF (AMOS) in the National Weather Service's daily climate report.
as of
Data from Flagstaff Airport, with records back to 1905. Across the record from 1905, 79 percent of days have a reading, with 100 percent in 2025.
Most recent rainfall
0.34 inches of rain fell on Sep 30, 2026, the latest measurable rainfall this year.
FLAGSTAFF (AMOS) saw no measurable rain on Oct 7, 2026, according to the National Weather Service daily climate report.
Official rainfall report for Oct 7, 2026
| Measured | Normal | vs normal | |
|---|---|---|---|
| Rain on Oct 7, 2026 | 0.00 inches | 0.05 inches | -0.05 inches |
| Last 48 hours | 0.00 inches | ||
| Last 72 hours | 0.00 inches | ||
| Last 7 days | 0.00 inches | ||
| Month to date | 0.00 inches | 0.33 inches | -0.33 inches |
| Year to date | 13.17 inches | 15.88 inches | -2.71 inches (-17%) |
| Record for Oct 7 | 1.55 inches | 1924 |
Source: National Weather Service daily climate report for FLAGSTAFF (AMOS), issued the morning after Oct 7, 2026. The local National Weather Service office issues the daily climate report for the airport station the next morning, and that report is the official figure.
How much rain did Flagstaff get?
Days with measurable rain, 2026
| Date | Rainfall |
|---|---|
| Sep 30, 2026 | 0.34 inches |
| Sep 29, 2026 | 1.65 inches |
| Sep 28, 2026 | 0.62 inches |
| Sep 27, 2026 | 0.07 inches |
| Sep 25, 2026 | 0.04 inches |
| Sep 23, 2026 | 0.12 inches |
| Sep 17, 2026 | 0.02 inches |
| Sep 16, 2026 | 0.32 inches |
| Sep 13, 2026 | 0.01 inches |
| Sep 12, 2026 | 0.03 inches |
| Sep 11, 2026 | 0.06 inches |
| Sep 6, 2026 | 0.01 inches |
| Sep 2, 2026 | 0.21 inches |
| Aug 31, 2026 | 0.32 inches |
| Aug 28, 2026 | 0.39 inches |
| Aug 24, 2026 | 0.02 inches |
| Aug 23, 2026 | 0.31 inches |
| Aug 11, 2026 | 0.01 inches |
| Aug 10, 2026 | 0.16 inches |
| Aug 8, 2026 | 0.01 inches |
| Aug 6, 2026 | 0.18 inches |
| Aug 5, 2026 | 0.11 inches |
| Aug 1, 2026 | 0.04 inches |
| Jul 31, 2026 | 0.04 inches |
| Jul 30, 2026 | 0.03 inches |
| Jul 28, 2026 | 0.14 inches |
| Jul 25, 2026 | 0.04 inches |
| Jul 22, 2026 | 0.01 inches |
| Jul 21, 2026 | 0.42 inches |
| Jul 20, 2026 | 0.21 inches |
With 1.65 inches on Sep 29, 2026, this is the 86th wettest of the 8,008 measurable rain days in the Flagstaff Airport record, which begins in 1905.
Through Oct 3, 2026, the GHCN-Daily station record shows 13.17 inches of measurable rain so far this year, falling over a 58-day span. Station observations are from GHCN-Daily, with a 1-3 day lag and quality checks by NOAA.
Flagstaff rainfall by month, 2026
| Month | Rainfall | Normal | vs normal |
|---|---|---|---|
| January | 1.01 inches | 2.05 inches | -1.04 inches (-51%) |
| February | 2.02 inches | 2.17 inches | -0.15 inches (-7%) |
| March | 0.04 inches | 1.88 inches | -1.84 inches (-98%) |
| April | 1.02 inches | 0.89 inches | +0.13 inches (+15%) |
| May | 0.26 inches | 0.77 inches | -0.51 inches (-66%) |
| June | 0.14 inches | 0.30 inches | -0.16 inches |
| July | 3.63 inches | 2.61 inches | +1.02 inches (+39%) |
| August | 1.55 inches | 3.04 inches | -1.49 inches (-49%) |
| September | 3.50 inches | 1.84 inches | +1.66 inches (+90%) |
| October | 0.00 inches | 1.52 inches |
October is still in progress; figures run through Oct 3, 2026. Averages are 1991-2020 normals from NCEI.
Rainfall days at each threshold in Flagstaff
| Year | 0.5+ in. | 1+ in. | 2+ in. | 3+ in. |
|---|---|---|---|---|
| 2025 | 13 | 5 | 0 | 0 |
| 2024 | 14 | 4 | 0 | 0 |
| 2023 | 17 | 5 | 1 | 0 |
| 2022 | 10 | 1 | 0 | 0 |
| 2021 | 17 | 5 | 0 | 0 |
| 2020 | 7 | 1 | 0 | 0 |
| 2019 | 16 | 5 | 2 | 0 |
| 2018 | 12 | 4 | 1 | 0 |
| 2017 | 12 | 2 | 0 | 0 |
| 2016 | 16 | 5 | 0 | 0 |
| Average | 12.0 | 3.4 | 0.4 | 0.1 |
A day counts when its rainfall total meets or passes the column amount, from Flagstaff Airport records in GHCN-Daily. Every complete year starting with 1905 counts toward the average, 91 years in total.
Past rainfall years in Flagstaff
All-time rainfall records
| Wettest day | 3.93 inches | Feb 19, 1993 |
|---|---|---|
| Wettest year | 36.59 inches | 1965 |
| Driest year | 9.59 inches | 2020 |
| Average year | 20.57 inches | 91 complete years on record |
| Rain days a year | 82 | average, 0.01 inch or more |
| Record begins | 1905 | 35,173 daily readings |
Monthly rainfall normals
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inches | 2.05 | 2.17 | 1.88 | 0.89 | 0.77 | 0.30 | 2.61 | 3.04 | 1.84 | 1.52 | 1.55 | 1.90 | 20.52 |
Averages are 1991-2020 normals from NCEI.
The daily climate report is issued by the local National Weather Service forecast office and delivered to this page by the Iowa Environmental Mesonet of Iowa State University. Under 17 U.S.C. 105, no copyright attaches to the government-produced figures on this page, including reports, alerts, station observations, and normals, which were created by the National Weather Service and other NOAA offices. The notice that 17 U.S.C. 403 requires appears in this sentence. It does not imply endorsement by or affiliation with those agencies. See: Data sources and attribution.