Bonn-Friesdorf Threshold Days by Year (GME00130966)
12 fixed thresholds counted per year at Bonn-Friesdorf (GME00130966): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Bonn-Friesdorf Thresholds
- Bonn-Friesdorf: days with 10 mm (0.39 in) or more of precipitation in 55 years, most in 1950 with 21.
- Bonn-Friesdorf: nights with a minimum temperature at or below 0 C (32 F) in 51 years, most in 1963 with 92.
- Bonn-Friesdorf: days with a maximum temperature at or below 0 C (32 F) in 48 years, most in 1963 with 44.
- Bonn-Friesdorf: days with a maximum temperature at or above 30 C (86 F) in 47 years, most in 1947 with 38.
- 12 fixed thresholds have at least one qualifying day at Bonn-Friesdorf.
Days at or above 30 C (86 F)
47 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1933 | 7 | 8.3 |
| 1934 | 4 | 8.3 |
| 1935 | 14 | 8.3 |
| 1936 | 5 | 8.3 |
| 1937 | 9 | 8.3 |
| 1938 | 12 | 8.3 |
| 1939 | 7 | 8.3 |
| 1941 | 12 | 16.4 |
| 1942 | 10 | 16.4 |
| 1947 | 38 | 16.4 |
| 1948 | 14 | 16.4 |
| 1949 | 8 | 16.4 |
| 1950 | 8 | 6.5 |
| 1951 | 3 | 6.5 |
| 1952 | 10 | 6.5 |
| 1953 | 6 | 6.5 |
| 1954 | 3 | 6.5 |
| 1955 | 2 | 6.5 |
| 1957 | 9 | 6.5 |
| 1959 | 11 | 6.5 |
| 1960 | 1 | 6.1 |
| 1961 | 7 | 6.1 |
| 1962 | 2 | 6.1 |
| 1963 | 5 | 6.1 |
| 1964 | 15 | 6.1 |
| 1966 | 6 | 6.1 |
| 1967 | 6 | 6.1 |
| 1968 | 4 | 6.1 |
| 1969 | 9 | 6.1 |
| 1970 | 1 | 6.6 |
| 1971 | 6 | 6.6 |
| 1972 | 5 | 6.6 |
| 1973 | 12 | 6.6 |
| 1974 | 3 | 6.6 |
| 1975 | 12 | 6.6 |
| 1976 | 19 | 6.6 |
| 1977 | 2 | 6.6 |
| 1978 | 2 | 6.6 |
| 1979 | 4 | 6.6 |
| 1980 | 3 | 7.4 |
| 1981 | 4 | 7.4 |
| 1982 | 11 | 7.4 |
| 1983 | 18 | 7.4 |
| 1984 | 6 | 7.4 |
| 1985 | 2 | 7.4 |
| 1986 | 8 | 7.4 |
| 1998 | 10 | 10 |
| Year | First date | Last date |
|---|---|---|
| 1933 | 1933-07-21 | 1933-08-09 |
| 1934 | 1934-06-18 | 1934-09-08 |
| 1935 | 1935-06-25 | 1935-09-01 |
| 1936 | 1936-06-18 | 1936-09-03 |
| 1937 | 1937-05-26 | 1937-08-08 |
| 1938 | 1938-05-14 | 1938-08-06 |
| 1939 | 1939-06-04 | 1939-07-30 |
| 1941 | 1941-06-21 | 1941-07-14 |
| 1942 | 1942-06-05 | 1942-09-12 |
| 1947 | 1947-06-01 | 1947-09-20 |
| 1948 | 1948-06-08 | 1948-08-01 |
| 1949 | 1949-07-12 | 1949-09-05 |
| 1950 | 1950-06-05 | 1950-08-23 |
| 1951 | 1951-07-11 | 1951-08-30 |
| 1952 | 1952-06-29 | 1952-08-12 |
| 1953 | 1953-05-19 | 1953-09-02 |
| 1954 | 1954-06-20 | 1954-08-04 |
| 1955 | 1955-07-17 | 1955-07-18 |
| 1957 | 1957-06-18 | 1957-07-07 |
| 1959 | 1959-06-21 | 1959-09-12 |
| 1960 | 1960-06-23 | 1960-06-23 |
| 1961 | 1961-06-26 | 1961-09-17 |
| 1962 | 1962-07-10 | 1962-09-03 |
| 1963 | 1963-07-22 | 1963-08-03 |
| 1964 | 1964-06-12 | 1964-09-14 |
| 1966 | 1966-06-10 | 1966-08-13 |
| 1967 | 1967-06-25 | 1967-08-01 |
| 1968 | 1968-04-21 | 1968-07-10 |
| 1969 | 1969-05-13 | 1969-08-09 |
| 1970 | 1970-06-27 | 1970-06-27 |
| 1971 | 1971-07-09 | 1971-08-19 |
| 1972 | 1972-07-17 | 1972-07-21 |
| 1973 | 1973-06-26 | 1973-09-06 |
| 1974 | 1974-08-14 | 1974-08-16 |
| 1975 | 1975-07-08 | 1975-08-21 |
| 1976 | 1976-05-09 | 1976-07-16 |
| 1977 | 1977-06-13 | 1977-07-12 |
| 1978 | 1978-07-29 | 1978-07-30 |
| 1979 | 1979-05-30 | 1979-08-14 |
| 1980 | 1980-07-26 | 1980-08-03 |
| 1981 | 1981-06-02 | 1981-08-06 |
| 1982 | 1982-06-02 | 1982-09-05 |
| 1983 | 1983-06-04 | 1983-08-26 |
| 1984 | 1984-07-09 | 1984-08-23 |
| 1985 | 1985-07-14 | 1985-08-14 |
| 1986 | 1986-06-16 | 1986-08-03 |
| 1998 | 1998-05-11 | 1998-08-12 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 47 | 38 | 1947 | 10 |
| 35 C (95 F): Days | 11 | 5 | 1947 | 2 |
| 90 F (32.2 C): Days | 30 | 28 | 1947 | 5 |
| 100 F (37.8 C): Days | 1 | 1 | 1947 | 1 |
| 0 C (32 F): Ice days (max | 48 | 44 | 1963 | 3 |
| 0 C (32 F): Frost days (min | 51 | 92 | 1963 | 42 |
| -10 C (14 F): Days with min | 35 | 26 | 1940 | 10 |
| -20 C (-4 F): Days with min | 2 | 1 | 1942 | 1 |
| 20 C (68 F): Tropical nights (min | 15 | 2 | 1947 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 55 | 21 | 1950 | 17 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 47 | 6 | 1984 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 6 | 2 | 1936 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1933.
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).