Blue Ridge 3 SW Threshold Days by Year (USC00091024)
14 fixed thresholds counted per year at Blue Ridge 3 SW (USC00091024): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Blue Ridge 3 SW Thresholds
- Blue Ridge 3 SW: days with 10 mm (0.39 in) or more of precipitation in 16 years, most in 1959 with 71.
- Blue Ridge 3 SW: days with 25 mm (0.98 in) or more of precipitation in 16 years, most in 1964 with 28.
- Blue Ridge 3 SW: days with 50 mm (1.97 in) or more of precipitation in 16 years, most in 1994 with 9.
- Blue Ridge 3 SW: days with a maximum temperature at or above 30 C (86 F) in 15 years, most in 1970 with 78.
- 14 fixed thresholds have at least one qualifying day at Blue Ridge 3 SW.
Days at or above 30 C (86 F)
15 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1957 | 70 | 65 |
| 1958 | 60 | 65 |
| 1959 | 65 | 65 |
| 1963 | 50 | 45.3 |
| 1964 | 65 | 45.3 |
| 1965 | 40 | 45.3 |
| 1966 | 40 | 45.3 |
| 1967 | 22 | 45.3 |
| 1969 | 55 | 45.3 |
| 1970 | 78 | 45 |
| 1971 | 46 | 45 |
| 1974 | 11 | 45 |
| 1975 | 35 | 45 |
| 1976 | 55 | 45 |
| 1994 | 10 | 10 |
| Year | First date | Last date |
|---|---|---|
| 1957 | 1957-04-29 | 1957-09-22 |
| 1958 | 1958-05-23 | 1958-09-26 |
| 1959 | 1959-05-04 | 1959-10-06 |
| 1963 | 1963-05-07 | 1963-09-21 |
| 1964 | 1964-05-18 | 1964-09-12 |
| 1965 | 1965-04-23 | 1965-10-15 |
| 1966 | 1966-06-08 | 1966-09-11 |
| 1967 | 1967-05-26 | 1967-09-19 |
| 1969 | 1969-05-21 | 1969-09-18 |
| 1970 | 1970-05-14 | 1970-09-17 |
| 1971 | 1971-05-17 | 1971-10-04 |
| 1974 | 1974-05-19 | 1974-07-21 |
| 1975 | 1975-05-23 | 1975-09-07 |
| 1976 | 1976-04-21 | 1976-09-16 |
| 1994 | 1994-04-22 | 1994-08-13 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 15 | 78 | 1970 | 10 |
| 35 C (95 F): Days | 4 | 4 | 1966 | 2 |
| 90 F (32.2 C): Days | 12 | 36 | 1957 | 3 |
| 0 C (32 F): Ice days (max | 11 | 7 | 1958 | 4 |
| 0 C (32 F): Frost days (min | 15 | 112 | 1963 | 92 |
| -10 C (14 F): Days with min | 15 | 26 | 1963 | 14 |
| -20 C (-4 F): Days with min | 5 | 2 | 1966 | 2 |
| 20 C (68 F): Tropical nights (min | 14 | 20 | 1969 | 3 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 16 | 71 | 1959 | 45 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 16 | 28 | 1964 | 21 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 16 | 9 | 1994 | 5 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 5 | 1 | 1957 | 1 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 1 | 1 | 1964 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 5 | 1 | 1958 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1957.
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).