Brocken Threshold Days by Year

9 fixed thresholds counted per year at Brocken (GME00114621): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Brocken Thresholds

Brocken: days with a maximum temperature at or below 0 C (32 F) in 124 years, most in 1922 with 147.
Brocken: nights with a minimum temperature at or below 0 C (32 F) in 124 years, most in 1902 with 217.
Brocken: nights with a minimum temperature at or below -10 C (14 F) in 123 years, most in 1940 with 61.
Brocken: days with 10 mm (0.39 in) or more of precipitation in 122 years, most in 2007 with 92.
9 fixed thresholds have at least one qualifying day at Brocken.

Nights at or below 0 C (32 F)

124 years with a qualifying day

Days per year at Brocken with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 217 in 1902.

Nights at or below 0 C (32 F) per year at Brocken
Year	Days	Decade average
1896	198	188
1897	191	188
1898	177	188
1899	186	188
1900	195	191.6
1901	184	191.6
1902	217	191.6
1903	182	191.6
1904	197	191.6
1905	215	191.6
1906	173	191.6
1907	180	191.6
1908	184	191.6
1909	189	191.6
1910	180	190.6
1911	180	190.6
1912	204	190.6
1913	173	190.6
1914	184	190.6
1915	207	190.6
1916	186	190.6
1919	211	190.6
1920	167	186.7
1921	180	186.7
1922	213	186.7
1923	194	186.7
1924	176	186.7
1925	185	186.7
1926	180	186.7
1927	201	186.7
1928	192	186.7
1929	179	186.7
1930	174	178.7
1931	186	178.7
1932	190	178.7
1933	179	178.7
1934	166	178.7
1935	180	178.7
1936	183	178.7
1937	169	178.7
1938	174	178.7
1939	186	178.7
1940	181	171.4
1943	174	171.4
1944	185	171.4
1948	158	171.4
1949	159	171.4
1950	175	171.5
1951	176	171.5
1952	192	171.5
1953	141	171.5
1954	177	171.5
1955	179	171.5
1956	182	171.5
1957	173	171.5
1958	172	171.5
1959	148	171.5
1960	172	170.3
1961	147	170.3
1962	189	170.3
1963	165	170.3
1964	181	170.3
1965	180	170.3
1966	162	170.3
1967	170	170.3
1968	164	170.3
1969	173	170.3
1970	173	175.8
1971	168	175.8
1972	179	175.8
1973	190	175.8
1974	190	175.8
1975	179	175.8
1976	175	175.8
1977	166	175.8
1978	152	175.8
1979	186	175.8
1980	194	167.1
1981	172	167.1
1982	161	167.1
1983	164	167.1
1984	168	167.1
1985	173	167.1
1986	168	167.1
1987	169	167.1
1988	168	167.1
1989	134	167.1
1990	156	163.5
1991	176	163.5
1992	168	163.5
1993	154	163.5
1994	161	163.5
1995	172	163.5
1996	157	163.5
1997	169	163.5
1998	163	163.5
1999	159	163.5
2000	143	156
2001	162	156
2002	161	156
2003	155	156
2004	158	156
2005	162	156
2006	146	156
2007	159	156
2008	164	156
2009	150	156
2010	185	158.1
2011	141	158.1
2012	168	158.1
2013	167	158.1
2014	132	158.1
2015	148	158.1
2016	172	158.1
2017	165	158.1
2018	151	158.1
2019	152	158.1
2020	145	131.6
2021	162	131.6
2022	135	131.6
2023	148	131.6
2024	118	131.6
2025	120	131.6
2026	93	131.6

For each year, a bar from the first to the last day at Brocken meeting 0 C (32 F).

First to last qualifying date each year at Brocken
Year	First date	Last date
1896	1896-01-01	1896-12-31
1897	1897-01-01	1897-12-31
1898	1898-01-01	1898-12-31
1899	1899-01-01	1899-12-31
1900	1900-01-01	1900-12-31
1901	1901-01-01	1901-12-30
1902	1902-01-02	1902-12-31
1903	1903-01-01	1903-12-31
1904	1904-01-01	1904-12-31
1905	1905-01-01	1905-12-31
1906	1906-01-01	1906-12-31
1907	1907-01-01	1907-12-31
1908	1908-01-01	1908-12-31
1909	1909-01-01	1909-12-31
1910	1910-01-01	1910-12-31
1911	1911-01-01	1911-12-31
1912	1912-01-01	1912-12-31
1913	1913-01-01	1913-12-31
1914	1914-01-01	1914-12-31
1915	1915-01-01	1915-12-31
1916	1916-01-01	1916-12-31
1919	1919-01-01	1919-12-31
1920	1920-01-01	1920-12-31
1921	1921-01-03	1921-12-31
1922	1922-01-01	1922-12-31
1923	1923-01-01	1923-12-31
1924	1924-01-01	1924-12-31
1925	1925-01-01	1925-12-31
1926	1926-01-01	1926-12-31
1927	1927-01-01	1927-12-31
1928	1928-01-01	1928-12-31
1929	1929-01-01	1929-12-31
1930	1930-01-01	1930-12-31
1931	1931-01-01	1931-12-31
1932	1932-01-01	1932-12-31
1933	1933-01-01	1933-12-31
1934	1934-01-01	1934-12-31
1935	1935-01-01	1935-12-31
1936	1936-01-01	1936-12-31
1937	1937-01-01	1937-12-31
1938	1938-01-01	1938-12-31
1939	1939-01-01	1939-12-31
1940	1940-01-01	1940-12-31
1943	1943-01-01	1943-12-31
1944	1944-01-01	1944-12-31
1948	1948-01-01	1948-12-31
1949	1949-01-01	1949-12-31
1950	1950-01-01	1950-12-31
1951	1951-01-01	1951-12-31
1952	1952-01-01	1952-12-31
1953	1953-01-01	1953-12-31
1954	1954-01-01	1954-12-31
1955	1955-01-01	1955-12-31
1956	1956-01-01	1956-12-31
1957	1957-01-01	1957-12-31
1958	1958-01-01	1958-12-31
1959	1959-01-01	1959-12-31
1960	1960-01-02	1960-12-31
1961	1961-01-01	1961-12-31
1962	1962-01-01	1962-12-31
1963	1963-01-01	1963-12-31
1964	1964-01-01	1964-12-31
1965	1965-01-01	1965-12-31
1966	1966-01-01	1966-12-31
1967	1967-01-01	1967-12-31
1968	1968-01-01	1968-12-31
1969	1969-01-01	1969-12-31
1970	1970-01-01	1970-12-31
1971	1971-01-01	1971-12-31
1972	1972-01-01	1972-12-31
1973	1973-01-01	1973-12-31
1974	1974-01-01	1974-12-31
1975	1975-01-01	1975-12-31
1976	1976-01-01	1976-12-31
1977	1977-01-01	1977-12-31
1978	1978-01-01	1978-12-31
1979	1979-01-01	1979-12-31
1980	1980-01-01	1980-12-31
1981	1981-01-01	1981-12-31
1982	1982-01-01	1982-12-31
1983	1983-01-01	1983-12-31
1984	1984-01-01	1984-12-31
1985	1985-01-01	1985-12-31
1986	1986-01-01	1986-12-31
1987	1987-01-01	1987-12-27
1988	1988-01-01	1988-12-31
1989	1989-01-01	1989-12-31
1990	1990-01-01	1990-12-31
1991	1991-01-01	1991-12-31
1992	1992-01-01	1992-12-31
1993	1993-01-01	1993-12-31
1994	1994-01-01	1994-12-31
1995	1995-01-01	1995-12-31
1996	1996-01-01	1996-12-31
1997	1997-01-01	1997-12-31
1998	1998-01-02	1998-12-31
1999	1999-01-02	1999-12-31
2000	2000-01-01	2000-12-31
2001	2001-01-01	2001-12-31
2002	2002-01-01	2002-12-31
2003	2003-01-01	2003-12-31
2004	2004-01-01	2004-12-31
2005	2005-01-01	2005-12-31
2006	2006-01-01	2006-12-31
2007	2007-01-01	2007-12-31
2008	2008-01-01	2008-12-31
2009	2009-01-01	2009-12-31
2010	2010-01-01	2010-12-31
2011	2011-01-01	2011-12-31
2012	2012-01-02	2012-12-31
2013	2013-01-01	2013-12-31
2014	2014-01-01	2014-12-31
2015	2015-01-01	2015-12-31
2016	2016-01-01	2016-12-31
2017	2017-01-01	2017-12-30
2018	2018-01-01	2018-12-31
2019	2019-01-01	2019-12-31
2020	2020-01-01	2020-12-31
2021	2021-01-01	2021-12-29
2022	2022-01-03	2022-12-30
2023	2023-01-03	2023-12-31
2024	2024-01-01	2024-12-31
2025	2025-01-01	2025-12-31
2026	2026-01-01	2026-05-16

Every Fixed Threshold

Fixed thresholds at Brocken
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
0 C (32 F): Ice days (max	124	147	1922	37
0 C (32 F): Frost days (min	124	217	1902	93
-10 C (14 F): Days with min	123	61	1940	5
-20 C (-4 F): Days with min	23	9	1940	1
20 C (68 F): Tropical nights (min	9	1	1959	1
10 mm (0.39 in): Days with 10 mm or more rain	122	92	2007	23
25 mm (0.98 in): Days with 25 mm or more rain	122	26	1994	2
50 mm (1.97 in): Days with 50 mm or more rain	76	7	1900	1
100 mm (3.94 in): Days with 100 mm or more rain	8	2	2002	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1896.

Download the Data

Data for Brocken 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Brocken Threshold Days by Year

Key Facts for Brocken Thresholds

Nights at or below 0 C (32 F)

Every Fixed Threshold

Download the Data

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