Mannheim City Threshold Days by Year (GMM00010729)
8 fixed thresholds counted per year at Mannheim City (GMM00010729): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Mannheim City Thresholds
- Mannheim City: days with a maximum temperature at or above 30 C (86 F) in 21 years, most in 1949 with 26.
- Mannheim City: days with a maximum temperature at or below 0 C (32 F) in 19 years, most in 1985 with 34.
- Mannheim City: days with a maximum temperature at or above 90 F (32.2 C) in 17 years, most in 1952 with 15.
- Mannheim City: days with a maximum temperature at or above 35 C (95 F) in 10 years, most in 1952 with 7.
- 8 fixed thresholds have at least one qualifying day at Mannheim City.
Days at or above 30 C (86 F)
21 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1949 | 26 | 26 |
| 1950 | 19 | 14.2 |
| 1951 | 11 | 14.2 |
| 1952 | 20 | 14.2 |
| 1953 | 14 | 14.2 |
| 1954 | 7 | 14.2 |
| 1973 | 22 | 12.3 |
| 1974 | 8 | 12.3 |
| 1975 | 14 | 12.3 |
| 1976 | 26 | 12.3 |
| 1977 | 4 | 12.3 |
| 1978 | 4 | 12.3 |
| 1979 | 8 | 12.3 |
| 1984 | 8 | 8.4 |
| 1985 | 7 | 8.4 |
| 1986 | 12 | 8.4 |
| 1987 | 6 | 8.4 |
| 1988 | 9 | 8.4 |
| 1990 | 19 | 22.3 |
| 1991 | 24 | 22.3 |
| 1992 | 24 | 22.3 |
| Year | First date | Last date |
|---|---|---|
| 1949 | 1949-04-18 | 1949-09-06 |
| 1950 | 1950-06-04 | 1950-08-26 |
| 1951 | 1951-07-08 | 1951-09-13 |
| 1952 | 1952-06-29 | 1952-08-30 |
| 1953 | 1953-05-16 | 1953-09-02 |
| 1954 | 1954-06-19 | 1954-09-01 |
| 1973 | 1973-06-26 | 1973-09-09 |
| 1974 | 1974-07-30 | 1974-08-17 |
| 1975 | 1975-06-12 | 1975-08-21 |
| 1976 | 1976-05-09 | 1976-08-26 |
| 1977 | 1977-06-10 | 1977-07-12 |
| 1978 | 1978-07-28 | 1978-08-22 |
| 1979 | 1979-05-30 | 1979-09-02 |
| 1984 | 1984-07-09 | 1984-08-23 |
| 1985 | 1985-07-14 | 1985-09-19 |
| 1986 | 1986-06-16 | 1986-08-11 |
| 1987 | 1987-06-29 | 1987-08-22 |
| 1988 | 1988-07-23 | 1988-08-18 |
| 1990 | 1990-06-26 | 1990-08-29 |
| 1991 | 1991-07-02 | 1991-09-04 |
| 1992 | 1992-06-30 | 1992-08-29 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 21 | 26 | 1949 | 24 |
| 35 C (95 F): Days | 10 | 7 | 1952 | 2 |
| 90 F (32.2 C): Days | 17 | 15 | 1952 | 11 |
| 100 F (37.8 C): Days | 1 | 2 | 1952 | 2 |
| 0 C (32 F): Ice days (max | 19 | 34 | 1985 | 6 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 9 | 15 | 1992 | 15 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 7 | 3 | 1976 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 1 | 1 | 1978 | 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).