Roetgen Threshold Days by Year (GME00127870)
11 fixed thresholds counted per year at Roetgen (GME00127870): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Roetgen Thresholds
- Roetgen: days with a maximum temperature at or below 0 C (32 F) in 43 years, most in 1963 with 59.
- Roetgen: nights with a minimum temperature at or below 0 C (32 F) in 43 years, most in 1955 with 118.
- Roetgen: days with 10 mm (0.39 in) or more of precipitation in 43 years, most in 1966 with 56.
- Roetgen: days with 25 mm (0.98 in) or more of precipitation in 42 years, most in 1965 with 16.
- 11 fixed thresholds have at least one qualifying day at Roetgen.
Days at or above 30 C (86 F)
18 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1949 | 2 | 2 |
| 1952 | 3 | 3 |
| 1957 | 4 | 3 |
| 1959 | 2 | 3 |
| 1961 | 1 | 1.3 |
| 1964 | 2 | 1.3 |
| 1966 | 1 | 1.3 |
| 1968 | 1 | 1.3 |
| 1972 | 1 | 3.3 |
| 1974 | 1 | 3.3 |
| 1976 | 8 | 3.3 |
| 1982 | 1 | 1.2 |
| 1983 | 2 | 1.2 |
| 1984 | 1 | 1.2 |
| 1986 | 1 | 1.2 |
| 1989 | 1 | 1.2 |
| 1990 | 2 | 1.5 |
| 1991 | 1 | 1.5 |
| Year | First date | Last date |
|---|---|---|
| 1949 | 1949-07-13 | 1949-09-05 |
| 1952 | 1952-07-01 | 1952-07-06 |
| 1957 | 1957-06-30 | 1957-07-06 |
| 1959 | 1959-07-09 | 1959-07-11 |
| 1961 | 1961-08-30 | 1961-08-30 |
| 1964 | 1964-07-18 | 1964-08-27 |
| 1966 | 1966-08-13 | 1966-08-13 |
| 1968 | 1968-07-02 | 1968-07-02 |
| 1972 | 1972-07-20 | 1972-07-20 |
| 1974 | 1974-08-16 | 1974-08-16 |
| 1976 | 1976-06-25 | 1976-07-16 |
| 1982 | 1982-07-09 | 1982-07-09 |
| 1983 | 1983-07-17 | 1983-07-31 |
| 1984 | 1984-07-09 | 1984-07-09 |
| 1986 | 1986-08-03 | 1986-08-03 |
| 1989 | 1989-07-22 | 1989-07-22 |
| 1990 | 1990-08-03 | 1990-08-04 |
| 1991 | 1991-07-11 | 1991-07-11 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 18 | 8 | 1976 | 1 |
| 90 F (32.2 C): Days | 2 | 2 | 1957 | 1 |
| 0 C (32 F): Ice days (max | 43 | 59 | 1963 | 23 |
| 0 C (32 F): Frost days (min | 43 | 118 | 1955 | 85 |
| -10 C (14 F): Days with min | 33 | 31 | 1963 | 7 |
| -20 C (-4 F): Days with min | 3 | 2 | 1956 | 1 |
| 20 C (68 F): Tropical nights (min | 8 | 3 | 1957 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 43 | 56 | 1966 | 23 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 42 | 16 | 1965 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 19 | 6 | 1960 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 2 | 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2025-12-31).