Aach Threshold Days by Year (GME00123346)
12 fixed thresholds counted per year at Aach (GME00123346): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Aach Thresholds
- Aach: days with 10 mm (0.39 in) or more of precipitation in 72 years, most in 1939 with 37.
- Aach: days with 25 mm (0.98 in) or more of precipitation in 65 years, most in 1940 with 8.
- Aach: days with a maximum temperature at or below 0 C (32 F) in 47 years, most in 1940 with 58.
- Aach: nights with a minimum temperature at or below 0 C (32 F) in 47 years, most in 1962 with 153.
- 12 fixed thresholds have at least one qualifying day at Aach.
Days at or above 30 C (86 F)
43 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1937 | 7 | 6 |
| 1938 | 5 | 6 |
| 1941 | 10 | 17.1 |
| 1942 | 9 | 17.1 |
| 1943 | 16 | 17.1 |
| 1944 | 16 | 17.1 |
| 1947 | 38 | 17.1 |
| 1948 | 10 | 17.1 |
| 1949 | 21 | 17.1 |
| 1950 | 18 | 8.8 |
| 1951 | 8 | 8.8 |
| 1952 | 22 | 8.8 |
| 1953 | 10 | 8.8 |
| 1954 | 4 | 8.8 |
| 1955 | 1 | 8.8 |
| 1957 | 9 | 8.8 |
| 1958 | 5 | 8.8 |
| 1959 | 2 | 8.8 |
| 1961 | 7 | 7.2 |
| 1962 | 9 | 7.2 |
| 1963 | 6 | 7.2 |
| 1964 | 16 | 7.2 |
| 1965 | 6 | 7.2 |
| 1966 | 4 | 7.2 |
| 1967 | 9 | 7.2 |
| 1968 | 5 | 7.2 |
| 1969 | 3 | 7.2 |
| 1970 | 3 | 4.9 |
| 1971 | 12 | 4.9 |
| 1972 | 2 | 4.9 |
| 1973 | 2 | 4.9 |
| 1974 | 5 | 4.9 |
| 1975 | 4 | 4.9 |
| 1976 | 12 | 4.9 |
| 1977 | 2 | 4.9 |
| 1978 | 2 | 4.9 |
| 1979 | 5 | 4.9 |
| 1980 | 4 | 7.7 |
| 1981 | 5 | 7.7 |
| 1982 | 6 | 7.7 |
| 1983 | 14 | 7.7 |
| 1984 | 6 | 7.7 |
| 1985 | 11 | 7.7 |
| Year | First date | Last date |
|---|---|---|
| 1937 | 1937-06-10 | 1937-08-12 |
| 1938 | 1938-06-25 | 1938-08-06 |
| 1941 | 1941-06-19 | 1941-07-26 |
| 1942 | 1942-06-07 | 1942-09-12 |
| 1943 | 1943-07-18 | 1943-09-13 |
| 1944 | 1944-05-30 | 1944-08-27 |
| 1947 | 1947-06-02 | 1947-09-20 |
| 1948 | 1948-06-09 | 1948-08-01 |
| 1949 | 1949-07-05 | 1949-09-06 |
| 1950 | 1950-05-21 | 1950-08-24 |
| 1951 | 1951-06-15 | 1951-08-30 |
| 1952 | 1952-06-29 | 1952-08-29 |
| 1953 | 1953-05-18 | 1953-09-02 |
| 1954 | 1954-06-20 | 1954-08-06 |
| 1955 | 1955-07-18 | 1955-07-18 |
| 1957 | 1957-06-29 | 1957-07-08 |
| 1958 | 1958-07-13 | 1958-08-11 |
| 1959 | 1959-07-09 | 1959-07-10 |
| 1961 | 1961-06-25 | 1961-08-29 |
| 1962 | 1962-06-23 | 1962-09-03 |
| 1963 | 1963-06-22 | 1963-08-03 |
| 1964 | 1964-06-12 | 1964-08-28 |
| 1965 | 1965-06-25 | 1965-08-07 |
| 1966 | 1966-06-11 | 1966-08-13 |
| 1967 | 1967-06-23 | 1967-08-01 |
| 1968 | 1968-06-30 | 1968-07-09 |
| 1969 | 1969-05-14 | 1969-07-24 |
| 1970 | 1970-07-28 | 1970-08-06 |
| 1971 | 1971-07-09 | 1971-08-19 |
| 1972 | 1972-07-09 | 1972-08-13 |
| 1973 | 1973-06-27 | 1973-08-06 |
| 1974 | 1974-08-03 | 1974-08-17 |
| 1975 | 1975-07-14 | 1975-08-09 |
| 1976 | 1976-06-29 | 1976-07-18 |
| 1977 | 1977-06-10 | 1977-06-13 |
| 1978 | 1978-07-29 | 1978-07-30 |
| 1979 | 1979-05-30 | 1979-08-15 |
| 1980 | 1980-06-14 | 1980-08-03 |
| 1981 | 1981-06-15 | 1981-08-06 |
| 1982 | 1982-06-02 | 1982-07-16 |
| 1983 | 1983-06-08 | 1983-08-01 |
| 1984 | 1984-07-09 | 1984-08-03 |
| 1985 | 1985-07-14 | 1985-08-24 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 43 | 38 | 1947 | 11 |
| 35 C (95 F): Days | 7 | 11 | 1947 | 4 |
| 90 F (32.2 C): Days | 26 | 21 | 1947 | 4 |
| 100 F (37.8 C): Days | 1 | 1 | 1943 | 1 |
| 0 C (32 F): Ice days (max | 47 | 58 | 1940 | 43 |
| 0 C (32 F): Frost days (min | 47 | 153 | 1962 | 132 |
| -10 C (14 F): Days with min | 44 | 45 | 1963 | 27 |
| -20 C (-4 F): Days with min | 10 | 4 | 1942 | 4 |
| 20 C (68 F): Tropical nights (min | 3 | 1 | 1944 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 72 | 37 | 1939 | 19 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 65 | 8 | 1940 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 10 | 1 | 1920 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1937.
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).