Heidenrod-Mappershain Threshold Days by Year (GME00123550)
11 fixed thresholds counted per year at Heidenrod-Mappershain (GME00123550): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Heidenrod-Mappershain Thresholds
- Heidenrod-Mappershain: days with a maximum temperature at or below 0 C (32 F) in 39 years, most in 1963 with 70.
- Heidenrod-Mappershain: nights with a minimum temperature at or below 0 C (32 F) in 39 years, most in 1955 with 131.
- Heidenrod-Mappershain: days with 10 mm (0.39 in) or more of precipitation in 39 years, most in 1981 with 39.
- Heidenrod-Mappershain: days with 25 mm (0.98 in) or more of precipitation in 35 years, most in 1981 with 8.
- 11 fixed thresholds have at least one qualifying day at Heidenrod-Mappershain.
Days at or above 30 C (86 F)
16 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1952 | 8 | 5 |
| 1957 | 4 | 5 |
| 1959 | 3 | 5 |
| 1963 | 2 | 3 |
| 1964 | 6 | 3 |
| 1966 | 1 | 3 |
| 1971 | 2 | 3.6 |
| 1972 | 1 | 3.6 |
| 1973 | 1 | 3.6 |
| 1974 | 2 | 3.6 |
| 1976 | 12 | 3.6 |
| 1983 | 4 | 1.8 |
| 1984 | 1 | 1.8 |
| 1986 | 1 | 1.8 |
| 1987 | 1 | 1.8 |
| 1990 | 6 | 6 |
| Year | First date | Last date |
|---|---|---|
| 1952 | 1952-06-30 | 1952-08-12 |
| 1957 | 1957-07-04 | 1957-07-07 |
| 1959 | 1959-07-09 | 1959-07-11 |
| 1963 | 1963-08-02 | 1963-08-03 |
| 1964 | 1964-07-15 | 1964-08-28 |
| 1966 | 1966-08-13 | 1966-08-13 |
| 1971 | 1971-07-27 | 1971-08-19 |
| 1972 | 1972-07-20 | 1972-07-20 |
| 1973 | 1973-09-05 | 1973-09-05 |
| 1974 | 1974-08-15 | 1974-08-16 |
| 1976 | 1976-06-27 | 1976-07-17 |
| 1983 | 1983-07-11 | 1983-07-31 |
| 1984 | 1984-07-11 | 1984-07-11 |
| 1986 | 1986-08-03 | 1986-08-03 |
| 1987 | 1987-06-30 | 1987-06-30 |
| 1990 | 1990-07-28 | 1990-08-12 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 16 | 12 | 1976 | 6 |
| 90 F (32.2 C): Days | 4 | 2 | 1952 | 2 |
| 0 C (32 F): Ice days (max | 39 | 70 | 1963 | 19 |
| 0 C (32 F): Frost days (min | 39 | 131 | 1955 | 68 |
| -10 C (14 F): Days with min | 33 | 33 | 1963 | 1 |
| -20 C (-4 F): Days with min | 2 | 4 | 1956 | 1 |
| 20 C (68 F): Tropical nights (min | 8 | 2 | 1952 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 39 | 39 | 1981 | 23 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 35 | 8 | 1981 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 10 | 3 | 1981 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1975 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1952.
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).