Bochum-1 Threshold Days by Year (SF007211970)

5 fixed thresholds counted per year at Bochum-1 (SF007211970): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bochum-1 Thresholds

Bochum-1: days with 10 mm (0.39 in) or more of precipitation in 57 years, most in 1925 with 23.
Bochum-1: days with 25 mm (0.98 in) or more of precipitation in 56 years, most in 1940 with 10.
Bochum-1: days with 50 mm (1.97 in) or more of precipitation in 38 years, most in 1940 with 5.
Bochum-1: days with 100 mm (3.94 in) or more of precipitation in 7 years, most in 1930 with 2.
5 fixed thresholds have at least one qualifying day at Bochum-1.

Days with 10 mm (0.39 in) or more of precipitation

57 years with a qualifying day

Days per year at Bochum-1 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 23 in 1925.

Days with 10 mm (0.39 in) or more of precipitation per year at Bochum-1
Year	Days	Decade average
1920	20	15.1
1921	16	15.1
1922	9	15.1
1923	19	15.1
1924	22	15.1
1925	23	15.1
1926	7	15.1
1927	14	15.1
1928	10	15.1
1929	11	15.1
1930	13	15.1
1931	15	15.1
1932	18	15.1
1933	19	15.1
1934	10	15.1
1935	9	15.1
1936	17	15.1
1937	15	15.1
1938	12	15.1
1939	23	15.1
1940	20	14.5
1941	16	14.5
1942	11	14.5
1943	19	14.5
1944	11	14.5
1945	6	14.5
1946	18	14.5
1947	16	14.5
1948	15	14.5
1949	13	14.5
1950	18	14.4
1951	20	14.4
1952	10	14.4
1953	13	14.4
1954	13	14.4
1955	22	14.4
1956	14	14.4
1957	14	14.4
1958	10	14.4
1959	10	14.4
1960	18	12.6
1961	13	12.6
1962	13	12.6
1963	13	12.6
1964	12	12.6
1965	8	12.6
1966	9	12.6
1967	14	12.6
1968	10	12.6
1969	16	12.6
1970	11	15.4
1971	19	15.4
1972	17	15.4
1973	16	15.4
1974	15	15.4
1975	15	15.4
1976	15	15.4

For each year, a bar from the first to the last day at Bochum-1 meeting 10 mm (0.39 in).

First to last qualifying date each year at Bochum-1
Year	First date	Last date
1920	1920-01-02	1920-11-28
1921	1921-02-06	1921-12-27
1922	1922-01-31	1922-12-30
1923	1923-01-01	1923-12-29
1924	1924-01-19	1924-12-20
1925	1925-01-10	1925-12-07
1926	1926-01-31	1926-12-21
1927	1927-01-30	1927-12-03
1928	1928-01-14	1928-12-04
1929	1929-01-19	1929-12-20
1930	1930-01-09	1930-12-11
1931	1931-01-17	1931-12-03
1932	1932-01-13	1932-12-27
1933	1933-01-16	1933-12-16
1934	1934-01-03	1934-12-29
1935	1935-01-19	1935-12-19
1936	1936-01-11	1936-12-30
1937	1937-01-04	1937-12-20
1938	1938-02-08	1938-12-31
1939	1939-01-01	1939-12-30
1940	1940-02-06	1940-12-30
1941	1941-01-01	1941-12-20
1942	1942-01-05	1942-12-04
1943	1943-01-01	1943-12-25
1944	1944-01-07	1944-12-27
1945	1945-02-03	1945-12-21
1946	1946-01-04	1946-12-08
1947	1947-01-02	1947-12-29
1948	1948-01-01	1948-12-18
1949	1949-01-23	1949-12-31
1950	1950-01-09	1950-12-22
1951	1951-01-13	1951-12-08
1952	1952-02-02	1952-12-31
1953	1953-02-01	1953-12-20
1954	1954-01-01	1954-12-26
1955	1955-01-01	1955-12-28
1956	1956-02-14	1956-12-20
1957	1957-01-09	1957-12-13
1958	1958-01-04	1958-12-22
1959	1959-01-02	1959-12-06
1960	1960-01-19	1960-12-20
1961	1961-01-09	1961-12-05
1962	1962-01-09	1962-12-24
1963	1963-03-05	1963-12-12
1964	1964-01-14	1964-12-28
1965	1965-01-07	1965-12-29
1966	1966-01-07	1966-12-18
1967	1967-01-19	1967-11-17
1968	1968-02-15	1968-12-27
1969	1969-01-14	1969-12-09
1970	1970-02-06	1970-12-30
1971	1971-01-12	1971-12-31
1972	1972-01-02	1972-12-11
1973	1973-01-03	1973-12-19
1974	1974-01-05	1974-12-23
1975	1975-01-24	1975-12-31
1976	1976-01-30	1976-12-23

Every Fixed Threshold

Fixed thresholds at Bochum-1
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	57	23	1925	15
25 mm (0.98 in): Days with 25 mm or more rain	56	10	1940	4
50 mm (1.97 in): Days with 50 mm or more rain	38	5	1940	1
100 mm (3.94 in): Days with 100 mm or more rain	7	2	1930	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1941	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1920.

Download the Data

Data for Bochum-1 threshold days by year: CSV or JSON. Field meanings are on the data page.

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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Bochum-1 Threshold Days by Year (SF007211970)

Key Facts for Bochum-1 Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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