Herold (Pol) Threshold Days by Year (SF000287710)

5 fixed thresholds counted per year at Herold (Pol) (SF000287710): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Herold (Pol) Thresholds

Herold (Pol): days with 10 mm (0.39 in) or more of precipitation in 72 years, most in 1935 with 29.
Herold (Pol): days with 25 mm (0.98 in) or more of precipitation in 71 years, most in 1935 with 11.
Herold (Pol): days with 50 mm (1.97 in) or more of precipitation in 39 years, most in 1981 with 5.
Herold (Pol): days with 100 mm (3.94 in) or more of precipitation in 12 years, most in 1962 with 2.
5 fixed thresholds have at least one qualifying day at Herold (Pol).

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

72 years with a qualifying day

Days per year at Herold (Pol) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 29 in 1935.

Days with 10 mm (0.39 in) or more of precipitation per year at Herold (Pol)
Year	Days	Decade average
1926	9	11
1927	7	11
1928	14	11
1929	14	11
1930	15	15.8
1931	10	15.8
1932	17	15.8
1933	11	15.8
1934	16	15.8
1935	29	15.8
1936	15	15.8
1937	15	15.8
1938	14	15.8
1939	16	15.8
1940	17	9.1
1941	12	9.1
1942	10	9.1
1943	8	9.1
1944	9	9.1
1945	10	9.1
1946	5	9.1
1947	6	9.1
1948	7	9.1
1949	7	9.1
1950	12	14.8
1951	9	14.8
1952	10	14.8
1953	18	14.8
1954	20	14.8
1955	21	14.8
1956	17	14.8
1957	12	14.8
1958	14	14.8
1959	15	14.8
1960	15	14.5
1961	14	14.5
1962	10	14.5
1963	18	14.5
1964	14	14.5
1965	17	14.5
1966	9	14.5
1967	21	14.5
1968	17	14.5
1969	10	14.5
1970	10	16
1971	24	16
1972	17	16
1973	11	16
1974	16	16
1975	19	16
1976	19	16
1977	9	16
1978	20	16
1979	15	16
1980	11	12.6
1981	25	12.6
1982	15	12.6
1983	13	12.6
1984	10	12.6
1985	18	12.6
1986	11	12.6
1987	6	12.6
1988	8	12.6
1989	9	12.6
1990	11	12.4
1991	11	12.4
1992	15	12.4
1993	13	12.4
1994	11	12.4
1995	14	12.4
1996	13	12.4
1997	11	12.4

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

First to last qualifying date each year at Herold (Pol)
Year	First date	Last date
1926	1926-05-11	1926-11-27
1927	1927-05-12	1927-11-15
1928	1928-02-07	1928-12-21
1929	1929-03-15	1929-12-28
1930	1930-01-17	1930-12-31
1931	1931-03-19	1931-12-30
1932	1932-01-01	1932-11-07
1933	1933-02-22	1933-11-27
1934	1934-02-19	1934-11-20
1935	1935-01-03	1935-12-27
1936	1936-01-16	1936-12-03
1937	1937-02-18	1937-12-20
1938	1938-03-26	1938-11-16
1939	1939-01-01	1939-11-13
1940	1940-01-22	1940-10-16
1941	1941-01-06	1941-12-23
1942	1942-01-27	1942-12-02
1943	1943-01-23	1943-12-13
1944	1944-05-11	1944-09-11
1945	1945-05-11	1945-11-10
1946	1946-02-13	1946-10-14
1947	1947-03-21	1947-11-11
1948	1948-01-29	1948-12-20
1949	1949-04-27	1949-11-28
1950	1950-03-09	1950-12-30
1951	1951-01-04	1951-09-30
1952	1952-02-26	1952-09-27
1953	1953-02-17	1953-12-21
1954	1954-01-22	1954-11-20
1955	1955-02-02	1955-11-30
1956	1956-01-16	1956-12-19
1957	1957-02-21	1957-12-30
1958	1958-03-14	1958-12-22
1959	1959-01-11	1959-12-04
1960	1960-01-04	1960-12-17
1961	1961-02-10	1961-11-30
1962	1962-01-18	1962-10-08
1963	1963-01-04	1963-12-11
1964	1964-01-31	1964-12-27
1965	1965-02-17	1965-12-18
1966	1966-04-13	1966-11-21
1967	1967-03-17	1967-09-30
1968	1968-03-24	1968-12-22
1969	1969-02-24	1969-12-21
1970	1970-01-31	1970-12-06
1971	1971-01-09	1971-11-15
1972	1972-01-05	1972-11-02
1973	1973-02-18	1973-12-05
1974	1974-02-21	1974-11-25
1975	1975-01-29	1975-12-14
1976	1976-03-20	1976-12-31
1977	1977-02-11	1977-05-09
1978	1978-01-08	1978-12-08
1979	1979-02-28	1979-12-25
1980	1980-04-15	1980-12-01
1981	1981-01-22	1981-11-06
1982	1982-01-15	1982-10-30
1983	1983-03-17	1983-10-02
1984	1984-02-23	1984-12-23
1985	1985-01-13	1985-12-20
1986	1986-01-03	1986-10-30
1987	1987-04-14	1987-12-22
1988	1988-04-05	1988-12-19
1989	1989-01-31	1989-11-15
1990	1990-02-20	1990-11-05
1991	1991-01-26	1991-12-03
1992	1992-01-18	1992-11-12
1993	1993-01-10	1993-12-14
1994	1994-04-19	1994-12-24
1995	1995-03-19	1995-12-23
1996	1996-02-12	1996-12-28
1997	1997-02-25	1997-10-30

Every Fixed Threshold

Fixed thresholds at Herold (Pol)
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	72	29	1935	11
25 mm (0.98 in): Days with 25 mm or more rain	71	11	1935	1
50 mm (1.97 in): Days with 50 mm or more rain	39	5	1981	3
100 mm (3.94 in): Days with 100 mm or more rain	12	2	1962	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1996	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1926.

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Data for Herold (Pol) 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).

Herold (Pol) Threshold Days by Year (SF000287710)

Key Facts for Herold (Pol) Thresholds

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

Every Fixed Threshold

Download the Data

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