Iserlohn-Westig Threshold Days by Year (GME00124210)
11 fixed thresholds counted per year at Iserlohn-Westig (GME00124210): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Iserlohn-Westig Thresholds
- Iserlohn-Westig: days with 10 mm (0.39 in) or more of precipitation in 45 years, most in 1974 with 46.
- Iserlohn-Westig: days with 25 mm (0.98 in) or more of precipitation in 43 years, most in 1966 with 8.
- Iserlohn-Westig: nights with a minimum temperature at or below 0 C (32 F) in 38 years, most in 1940 with 111.
- Iserlohn-Westig: days with a maximum temperature at or below 0 C (32 F) in 36 years, most in 1963 with 52.
- 11 fixed thresholds have at least one qualifying day at Iserlohn-Westig.
Days at or above 30 C (86 F)
29 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1938 | 4 | 2.5 |
| 1939 | 1 | 2.5 |
| 1941 | 9 | 8.4 |
| 1942 | 3 | 8.4 |
| 1943 | 8 | 8.4 |
| 1944 | 6 | 8.4 |
| 1947 | 24 | 8.4 |
| 1948 | 5 | 8.4 |
| 1949 | 4 | 8.4 |
| 1950 | 1 | 4.4 |
| 1952 | 7 | 4.4 |
| 1953 | 2 | 4.4 |
| 1957 | 8 | 4.4 |
| 1959 | 4 | 4.4 |
| 1961 | 3 | 3.1 |
| 1963 | 2 | 3.1 |
| 1964 | 7 | 3.1 |
| 1966 | 1 | 3.1 |
| 1967 | 2 | 3.1 |
| 1968 | 2 | 3.1 |
| 1969 | 5 | 3.1 |
| 1970 | 1 | 3.9 |
| 1971 | 2 | 3.9 |
| 1972 | 3 | 3.9 |
| 1973 | 6 | 3.9 |
| 1974 | 1 | 3.9 |
| 1975 | 7 | 3.9 |
| 1976 | 10 | 3.9 |
| 1977 | 1 | 3.9 |
| Year | First date | Last date |
|---|---|---|
| 1938 | 1938-06-08 | 1938-08-05 |
| 1939 | 1939-06-07 | 1939-06-07 |
| 1941 | 1941-06-23 | 1941-07-13 |
| 1942 | 1942-08-27 | 1942-08-29 |
| 1943 | 1943-07-27 | 1943-08-21 |
| 1944 | 1944-05-29 | 1944-08-24 |
| 1947 | 1947-06-01 | 1947-09-19 |
| 1948 | 1948-06-11 | 1948-07-30 |
| 1949 | 1949-07-13 | 1949-09-06 |
| 1950 | 1950-06-07 | 1950-06-07 |
| 1952 | 1952-07-01 | 1952-08-12 |
| 1953 | 1953-08-13 | 1953-08-15 |
| 1957 | 1957-06-18 | 1957-07-07 |
| 1959 | 1959-07-08 | 1959-07-11 |
| 1961 | 1961-07-01 | 1961-09-01 |
| 1963 | 1963-08-02 | 1963-08-03 |
| 1964 | 1964-06-13 | 1964-08-28 |
| 1966 | 1966-08-13 | 1966-08-13 |
| 1967 | 1967-07-13 | 1967-07-18 |
| 1968 | 1968-07-01 | 1968-07-02 |
| 1969 | 1969-05-13 | 1969-07-29 |
| 1970 | 1970-06-27 | 1970-06-27 |
| 1971 | 1971-08-03 | 1971-08-19 |
| 1972 | 1972-07-19 | 1972-07-21 |
| 1973 | 1973-06-27 | 1973-09-05 |
| 1974 | 1974-08-16 | 1974-08-16 |
| 1975 | 1975-07-14 | 1975-08-10 |
| 1976 | 1976-06-25 | 1976-07-16 |
| 1977 | 1977-06-13 | 1977-06-13 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 29 | 24 | 1947 | 1 |
| 35 C (95 F): Days | 2 | 1 | 1944 | 1 |
| 90 F (32.2 C): Days | 12 | 7 | 1947 | 3 |
| 0 C (32 F): Ice days (max | 36 | 52 | 1963 | 7 |
| 0 C (32 F): Frost days (min | 38 | 111 | 1940 | 50 |
| -10 C (14 F): Days with min | 34 | 43 | 1940 | 5 |
| -20 C (-4 F): Days with min | 4 | 6 | 1940 | 1 |
| 20 C (68 F): Tropical nights (min | 12 | 5 | 1947 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 45 | 46 | 1974 | 34 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 43 | 8 | 1966 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 6 | 1 | 1935 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1938.
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).