Ft Defiance Threshold Days by Year (USC00023102)
12 fixed thresholds counted per year at Ft Defiance (USC00023102): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Ft Defiance Thresholds
- Ft Defiance: days with 10 mm (0.39 in) or more of precipitation in 14 years, most in 1905 with 21.
- Ft Defiance: days with 10 cm (3.9 in) or more of snowfall in 12 years, most in 1905 with 7.
- Ft Defiance: nights with a minimum temperature at or below 0 C (32 F) in 11 years, most in 1903 with 218.
- Ft Defiance: nights with a minimum temperature at or below -10 C (14 F) in 11 years, most in 1903 with 75.
- 12 fixed thresholds have at least one qualifying day at Ft Defiance.
Days at or above 30 C (86 F)
9 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1898 | 31 | 31 |
| 1900 | 49 | 31.7 |
| 1901 | 53 | 31.7 |
| 1902 | 33 | 31.7 |
| 1903 | 32 | 31.7 |
| 1904 | 7 | 31.7 |
| 1905 | 16 | 31.7 |
| 1932 | 34 | 45 |
| 1934 | 56 | 45 |
| Year | First date | Last date |
|---|---|---|
| 1898 | 1898-06-16 | 1898-08-19 |
| 1900 | 1900-06-07 | 1900-08-31 |
| 1901 | 1901-06-17 | 1901-08-28 |
| 1902 | 1902-06-06 | 1902-08-21 |
| 1903 | 1903-06-26 | 1903-08-19 |
| 1904 | 1904-07-10 | 1904-08-16 |
| 1905 | 1905-06-22 | 1905-08-23 |
| 1932 | 1932-06-15 | 1932-08-16 |
| 1934 | 1934-05-12 | 1934-09-06 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 9 | 56 | 1934 | 56 |
| 35 C (95 F): Days | 5 | 8 | 1900 | 4 |
| 90 F (32.2 C): Days | 9 | 35 | 1901 | 19 |
| 0 C (32 F): Ice days (max | 9 | 31 | 1903 | 1 |
| 0 C (32 F): Frost days (min | 11 | 218 | 1903 | 173 |
| -10 C (14 F): Days with min | 11 | 75 | 1903 | 28 |
| -20 C (-4 F): Days with min | 9 | 20 | 1932 | 20 |
| -30 C (-22 F): Days with min | 3 | 1 | 1898 | 3 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 14 | 21 | 1905 | 11 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 10 | 5 | 1903 | 3 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 12 | 7 | 1905 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 7 | 2 | 1898 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1898.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2025-12-31).