Holbrook (Rsl) Threshold Days by Year

4 fixed thresholds counted per year at Holbrook (Rsl) (ASN00072022): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Holbrook (Rsl) Thresholds

Holbrook (Rsl): days with 10 mm (0.39 in) or more of precipitation in 102 years, most in 1917 with 48.
Holbrook (Rsl): days with 25 mm (0.98 in) or more of precipitation in 99 years, most in 1917 with 20.
Holbrook (Rsl): days with 50 mm (1.97 in) or more of precipitation in 44 years, most in 1917 with 6.
Holbrook (Rsl): days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1897 with 1.
4 fixed thresholds have at least one qualifying day at Holbrook (Rsl).

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

102 years with a qualifying day

Days per year at Holbrook (Rsl) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 48 in 1917.

Days with 10 mm (0.39 in) or more of precipitation per year at Holbrook (Rsl)
Year	Days	Decade average
1885	23	23.4
1886	19	23.4
1887	29	23.4
1888	15	23.4
1889	31	23.4
1890	26	25.5
1891	31	25.5
1892	23	25.5
1893	33	25.5
1894	38	25.5
1895	25	25.5
1896	22	25.5
1897	16	25.5
1898	20	25.5
1899	21	25.5
1900	25	22
1901	25	22
1902	12	22
1903	24	22
1904	21	22
1905	26	22
1906	29	22
1907	15	22
1909	21	22
1910	24	24.6
1911	24	24.6
1912	15	24.6
1913	20	24.6
1914	12	24.6
1915	29	24.6
1916	29	24.6
1917	48	24.6
1919	20	24.6
1920	25	21
1921	30	21
1922	13	21
1923	18	21
1924	29	21
1925	16	21
1926	22	21
1927	17	21
1928	24	21
1929	16	21
1931	31	24
1932	22	24
1933	25	24
1934	25	24
1935	22	24
1936	25	24
1937	18	24
1938	12	24
1939	36	24
1940	7	18.1
1941	16	18.1
1942	23	18.1
1943	23	18.1
1944	8	18.1
1945	13	18.1
1946	26	18.1
1947	29	18.1
1948	18	18.1
1950	23	22.1
1951	19	22.1
1952	32	22.1
1953	17	22.1
1954	19	22.1
1955	22	22.1
1956	35	22.1
1957	17	22.1
1958	20	22.1
1959	17	22.1
1960	22	18.5
1961	15	18.5
1962	18	18.5
1963	20	18.5
1964	20	18.5
1965	14	18.5
1966	23	18.5
1967	5	18.5
1968	22	18.5
1969	26	18.5
1970	32	22.4
1971	12	22.4
1972	15	22.4
1973	37	22.4
1976	16	22.4
1982	5	5
1996	18	18.3
1997	9	18.3
1998	18	18.3
1999	28	18.3
2000	28	18.7
2001	16	18.7
2002	14	18.7
2003	22	18.7
2004	24	18.7
2005	20	18.7
2006	11	18.7
2007	19	18.7
2008	19	18.7
2009	14	18.7
2010	32	32

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

First to last qualifying date each year at Holbrook (Rsl)
Year	First date	Last date
1885	1885-01-15	1885-12-25
1886	1886-01-27	1886-12-05
1887	1887-02-17	1887-12-31
1888	1888-01-04	1888-12-31
1889	1889-01-01	1889-12-20
1890	1890-02-09	1890-12-30
1891	1891-01-03	1891-11-22
1892	1892-01-13	1892-10-17
1893	1893-04-02	1893-12-31
1894	1894-01-06	1894-12-16
1895	1895-01-05	1895-12-11
1896	1896-01-14	1896-11-19
1897	1897-01-09	1897-12-19
1898	1898-02-12	1898-12-24
1899	1899-01-18	1899-11-20
1900	1900-01-07	1900-11-19
1901	1901-03-14	1901-11-15
1902	1902-01-01	1902-12-20
1903	1903-01-07	1903-12-28
1904	1904-01-02	1904-12-18
1905	1905-04-04	1905-12-30
1906	1906-03-10	1906-12-17
1907	1907-01-27	1907-12-27
1909	1909-01-19	1909-10-09
1910	1910-01-11	1910-12-01
1911	1911-01-13	1911-12-26
1912	1912-01-06	1912-12-25
1913	1913-01-03	1913-12-31
1914	1914-01-28	1914-12-28
1915	1915-04-19	1915-12-15
1916	1916-01-29	1916-12-27
1917	1917-01-02	1917-12-12
1919	1919-02-18	1919-12-29
1920	1920-01-09	1920-12-28
1921	1921-01-03	1921-12-23
1922	1922-01-13	1922-12-31
1923	1923-05-10	1923-12-27
1924	1924-01-03	1924-12-15
1925	1925-01-13	1925-11-20
1926	1926-03-22	1926-12-18
1927	1927-01-06	1927-12-15
1928	1928-01-19	1928-10-15
1929	1929-02-15	1929-12-28
1931	1931-01-02	1931-11-17
1932	1932-02-06	1932-12-02
1933	1933-01-23	1933-12-15
1934	1934-01-06	1934-12-28
1935	1935-01-14	1935-12-26
1936	1936-01-04	1936-12-21
1937	1937-01-19	1937-12-29
1938	1938-01-03	1938-11-28
1939	1939-02-17	1939-11-21
1940	1940-02-17	1940-12-30
1941	1941-01-03	1941-10-06
1942	1942-02-14	1942-11-23
1943	1943-01-23	1943-12-11
1944	1944-01-24	1944-12-13
1945	1945-01-31	1945-12-18
1946	1946-01-19	1946-12-28
1947	1947-02-19	1947-12-22
1948	1948-01-02	1948-12-30
1950	1950-01-19	1950-12-22
1951	1951-02-20	1951-11-27
1952	1952-03-20	1952-12-11
1953	1953-01-06	1953-11-07
1954	1954-01-19	1954-12-11
1955	1955-01-27	1955-10-30
1956	1956-01-03	1956-12-14
1957	1957-02-08	1957-12-31
1958	1958-01-30	1958-12-16
1959	1959-02-16	1959-11-28
1960	1960-01-05	1960-12-05
1961	1961-01-03	1961-12-18
1962	1962-01-11	1962-11-21
1963	1963-01-03	1963-12-12
1964	1964-01-09	1964-12-23
1965	1965-04-13	1965-12-03
1966	1966-01-30	1966-12-15
1967	1967-01-20	1967-08-21
1968	1968-02-13	1968-12-27
1969	1969-01-15	1969-12-12
1970	1970-01-02	1970-12-05
1971	1971-01-15	1971-11-29
1972	1972-01-05	1972-11-25
1973	1973-01-13	1973-12-22
1976	1976-01-07	1976-12-16
1982	1982-01-26	1982-12-09
1996	1996-01-02	1996-12-26
1997	1997-05-07	1997-12-14
1998	1998-02-07	1998-12-14
1999	1999-01-09	1999-12-28
2000	2000-01-27	2000-11-29
2001	2001-01-25	2001-11-07
2002	2002-01-22	2002-09-17
2003	2003-01-01	2003-12-22
2004	2004-01-17	2004-12-14
2005	2005-01-20	2005-12-03
2006	2006-01-17	2006-11-13
2007	2007-01-19	2007-12-22
2008	2008-01-19	2008-12-18
2009	2009-04-25	2009-12-25
2010	2010-02-05	2010-12-20

Every Fixed Threshold

Fixed thresholds at Holbrook (Rsl)
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	102	48	1917	32
25 mm (0.98 in): Days with 25 mm or more rain	99	20	1917	8
50 mm (1.97 in): Days with 50 mm or more rain	44	6	1917	2
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1897	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1885.

Download the Data

Data for Holbrook (Rsl) 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Holbrook (Rsl) Threshold Days by Year

Key Facts for Holbrook (Rsl) Thresholds

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

Every Fixed Threshold

Download the Data

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