Blalock Threshold Days by Year (USC00350788)
14 fixed thresholds counted per year at Blalock (USC00350788): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Blalock Thresholds
- Blalock: days with 10 mm (0.39 in) or more of precipitation in 14 years, most in 1907 with 12.
- Blalock: days with a maximum temperature at or above 30 C (86 F) in 12 years, most in 1904 with 87.
- Blalock: days with a maximum temperature at or above 35 C (95 F) in 12 years, most in 1906 with 45.
- Blalock: days with a maximum temperature at or above 40 C (104 F) in 12 years, most in 1906 with 15.
- 14 fixed thresholds have at least one qualifying day at Blalock.
Days at or above 30 C (86 F)
12 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1899 | 61 | 61 |
| 1901 | 59 | 72.9 |
| 1902 | 61 | 72.9 |
| 1903 | 64 | 72.9 |
| 1904 | 87 | 72.9 |
| 1905 | 86 | 72.9 |
| 1906 | 84 | 72.9 |
| 1907 | 64 | 72.9 |
| 1908 | 78 | 72.9 |
| 1910 | 70 | 73 |
| 1914 | 74 | 73 |
| 1915 | 75 | 73 |
| Year | First date | Last date |
|---|---|---|
| 1899 | 1899-06-09 | 1899-09-27 |
| 1901 | 1901-05-25 | 1901-08-31 |
| 1902 | 1902-05-26 | 1902-09-23 |
| 1903 | 1903-05-04 | 1903-09-04 |
| 1904 | 1904-04-26 | 1904-10-02 |
| 1905 | 1905-04-23 | 1905-09-24 |
| 1906 | 1906-04-30 | 1906-09-30 |
| 1907 | 1907-05-15 | 1907-10-07 |
| 1908 | 1908-05-05 | 1908-09-30 |
| 1910 | 1910-04-18 | 1910-09-19 |
| 1914 | 1914-05-01 | 1914-09-21 |
| 1915 | 1915-05-06 | 1915-09-20 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 12 | 87 | 1904 | 75 |
| 35 C (95 F): Days | 12 | 45 | 1906 | 37 |
| 40 C (104 F): Days | 12 | 15 | 1906 | 10 |
| 45 C (113 F): Days | 1 | 2 | 1905 | 2 |
| 90 F (32.2 C): Days | 12 | 73 | 1906 | 59 |
| 100 F (37.8 C): Days | 12 | 29 | 1906 | 21 |
| 110 F (43.3 C): Days | 4 | 5 | 1905 | 1 |
| 0 C (32 F): Ice days (max | 11 | 17 | 1907 | 11 |
| 0 C (32 F): Frost days (min | 12 | 87 | 1903 | 65 |
| -10 C (14 F): Days with min | 7 | 9 | 1907 | 1 |
| 20 C (68 F): Tropical nights (min | 12 | 40 | 1904 | 7 |
| 25 C (77 F): Days with min | 9 | 21 | 1904 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 14 | 12 | 1907 | 2 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 4 | 1 | 1903 | 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2025-12-31).