Upper Tract Threshold Days by Year
16 fixed thresholds counted per year at Upper Tract (USC00469049): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Upper Tract Thresholds
- Upper Tract: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1996 with 37.
- Upper Tract: days with 25 mm (0.98 in) or more of precipitation in 41 years, most in 1905 with 13.
- Upper Tract: days with 50 mm (1.97 in) or more of precipitation in 26 years, most in 1985 with 5.
- Upper Tract: days with a maximum temperature at or above 30 C (86 F) in 24 years, most in 1899 with 82.
- 16 fixed thresholds have at least one qualifying day at Upper Tract.
Days at or above 30 C (86 F)
24 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1899 | 82 | 82 |
| 1900 | 77 | 49.3 |
| 1905 | 43 | 49.3 |
| 1906 | 51 | 49.3 |
| 1907 | 34 | 49.3 |
| 1908 | 46 | 49.3 |
| 1909 | 45 | 49.3 |
| 1910 | 47 | 50.6 |
| 1911 | 54 | 50.6 |
| 1912 | 49 | 50.6 |
| 1913 | 47 | 50.6 |
| 1914 | 61 | 50.6 |
| 1915 | 32 | 50.6 |
| 1916 | 41 | 50.6 |
| 1917 | 49 | 50.6 |
| 1918 | 48 | 50.6 |
| 1919 | 78 | 50.6 |
| 1920 | 20 | 40.9 |
| 1921 | 47 | 40.9 |
| 1922 | 37 | 40.9 |
| 1923 | 30 | 40.9 |
| 1927 | 35 | 40.9 |
| 1928 | 48 | 40.9 |
| 1929 | 69 | 40.9 |
| Year | First date | Last date |
|---|---|---|
| 1899 | 1899-04-24 | 1899-09-24 |
| 1900 | 1900-05-07 | 1900-10-07 |
| 1905 | 1905-05-04 | 1905-10-02 |
| 1906 | 1906-05-14 | 1906-09-21 |
| 1907 | 1907-03-22 | 1907-09-21 |
| 1908 | 1908-04-24 | 1908-10-17 |
| 1909 | 1909-05-06 | 1909-09-23 |
| 1910 | 1910-04-30 | 1910-09-25 |
| 1911 | 1911-05-11 | 1911-09-10 |
| 1912 | 1912-05-20 | 1912-10-11 |
| 1913 | 1913-05-03 | 1913-09-07 |
| 1914 | 1914-04-28 | 1914-09-23 |
| 1915 | 1915-04-25 | 1915-09-18 |
| 1916 | 1916-06-27 | 1916-10-09 |
| 1917 | 1917-04-20 | 1917-09-05 |
| 1918 | 1918-05-26 | 1918-10-17 |
| 1919 | 1919-05-04 | 1919-10-31 |
| 1920 | 1920-06-02 | 1920-08-15 |
| 1921 | 1921-06-13 | 1921-10-11 |
| 1922 | 1922-06-16 | 1922-10-08 |
| 1923 | 1923-06-01 | 1923-09-06 |
| 1927 | 1927-05-09 | 1927-10-03 |
| 1928 | 1928-04-06 | 1928-09-16 |
| 1929 | 1929-03-25 | 1929-09-29 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 24 | 82 | 1899 | 69 |
| 35 C (95 F): Days | 11 | 21 | 1899 | 2 |
| 90 F (32.2 C): Days | 24 | 57 | 1899 | 22 |
| 100 F (37.8 C): Days | 2 | 1 | 1899 | 1 |
| 0 C (32 F): Ice days (max | 24 | 27 | 1918 | 15 |
| 0 C (32 F): Frost days (min | 23 | 166 | 1920 | 115 |
| -10 C (14 F): Days with min | 23 | 31 | 1899 | 28 |
| -20 C (-4 F): Days with min | 11 | 7 | 1917 | 1 |
| -30 C (-22 F): Days with min | 2 | 1 | 1899 | 1 |
| 20 C (68 F): Tropical nights (min | 19 | 11 | 1900 | 4 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 41 | 37 | 1996 | 21 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 41 | 13 | 1905 | 11 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 26 | 5 | 1985 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 2 | 1 | 1985 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 16 | 6 | 1996 | 3 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 8 | 2 | 1922 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1899.
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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2025-12-31).