Ploumanac'h Threshold Days by Year
8 fixed thresholds counted per year at Ploumanac'h (FRE00171627): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Ploumanac'h Thresholds
- Ploumanac'h: days with 10 mm (0.39 in) or more of precipitation in 79 years, most in 1999 with 36.
- Ploumanac'h: nights with a minimum temperature at or below 0 C (32 F) in 72 years, most in 1963 with 33.
- Ploumanac'h: days with 25 mm (0.98 in) or more of precipitation in 62 years, most in 1998 with 7.
- Ploumanac'h: days with a maximum temperature at or above 30 C (86 F) in 17 years, most in 2003 with 2.
- 8 fixed thresholds have at least one qualifying day at Ploumanac'h.
Days at or above 30 C (86 F)
17 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1949 | 1 | 1 |
| 1955 | 1 | 1 |
| 1964 | 1 | 1 |
| 1968 | 1 | 1 |
| 1984 | 1 | 1 |
| 1987 | 1 | 1 |
| 1991 | 1 | 1 |
| 1996 | 1 | 1 |
| 1998 | 1 | 1 |
| 2003 | 2 | 2 |
| 2011 | 2 | 1.3 |
| 2012 | 1 | 1.3 |
| 2016 | 1 | 1.3 |
| 2019 | 1 | 1.3 |
| 2022 | 2 | 1.3 |
| 2025 | 1 | 1.3 |
| 2026 | 1 | 1.3 |
| Year | First date | Last date |
|---|---|---|
| 1949 | 1949-09-04 | 1949-09-04 |
| 1955 | 1955-08-21 | 1955-08-21 |
| 1964 | 1964-08-25 | 1964-08-25 |
| 1968 | 1968-06-30 | 1968-06-30 |
| 1984 | 1984-07-29 | 1984-07-29 |
| 1987 | 1987-08-20 | 1987-08-20 |
| 1991 | 1991-08-21 | 1991-08-21 |
| 1996 | 1996-08-18 | 1996-08-18 |
| 1998 | 1998-06-19 | 1998-06-19 |
| 2003 | 2003-08-09 | 2003-09-17 |
| 2011 | 2011-09-30 | 2011-10-01 |
| 2012 | 2012-08-17 | 2012-08-17 |
| 2016 | 2016-08-23 | 2016-08-23 |
| 2019 | 2019-08-24 | 2019-08-24 |
| 2022 | 2022-07-17 | 2022-07-18 |
| 2025 | 2025-06-21 | 2025-06-21 |
| 2026 | 2026-06-23 | 2026-06-23 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 17 | 2 | 2003 | 1 |
| 90 F (32.2 C): Days | 1 | 1 | 2019 | 1 |
| 0 C (32 F): Ice days (max | 9 | 2 | 1956 | 1 |
| 0 C (32 F): Frost days (min | 72 | 33 | 1963 | 3 |
| -10 C (14 F): Days with min | 3 | 2 | 1948 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 79 | 36 | 1999 | 13 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 62 | 7 | 1998 | 3 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 3 | 1 | 1960 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.
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 (2026-10-14).