Boolcarrol Threshold Days by Year

4 fixed thresholds counted per year at Boolcarrol (ASN00053005): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Boolcarrol Thresholds

Boolcarrol: days with 10 mm (0.39 in) or more of precipitation in 88 years, most in 1950 with 31.
Boolcarrol: days with 25 mm (0.98 in) or more of precipitation in 88 years, most in 1950 with 15.
Boolcarrol: days with 50 mm (1.97 in) or more of precipitation in 59 years, most in 1961 with 5.
Boolcarrol: days with 100 mm (3.94 in) or more of precipitation in 9 years, most in 1882 with 1.
4 fixed thresholds have at least one qualifying day at Boolcarrol.

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

88 years with a qualifying day

Days per year at Boolcarrol with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 31 in 1950.

Days with 10 mm (0.39 in) or more of precipitation per year at Boolcarrol
Year	Days	Decade average
1879	22	22
1880	13	16.2
1881	18	16.2
1882	18	16.2
1883	8	16.2
1884	15	16.2
1885	11	16.2
1886	21	16.2
1887	21	16.2
1888	8	16.2
1889	29	16.2
1890	29	17.7
1891	20	17.7
1892	19	17.7
1893	16	17.7
1894	26	17.7
1895	14	17.7
1896	15	17.7
1897	18	17.7
1898	8	17.7
1899	12	17.7
1900	11	16.7
1901	11	16.7
1902	8	16.7
1903	24	16.7
1904	18	16.7
1905	17	16.7
1906	20	16.7
1907	17	16.7
1908	20	16.7
1909	21	16.7
1910	17	16.4
1911	20	16.4
1912	14	16.4
1913	17	16.4
1914	21	16.4
1915	18	16.4
1916	21	16.4
1917	16	16.4
1918	10	16.4
1919	10	16.4
1920	19	17.4
1921	26	17.4
1922	14	17.4
1923	11	17.4
1924	26	17.4
1925	12	17.4
1926	18	17.4
1927	12	17.4
1928	19	17.4
1934	23	16.5
1935	13	16.5
1936	17	16.5
1937	14	16.5
1938	17	16.5
1939	15	16.5
1940	7	14.4
1941	13	14.4
1942	20	14.4
1943	11	14.4
1944	10	14.4
1945	13	14.4
1946	13	14.4
1947	22	14.4
1948	16	14.4
1949	19	14.4
1950	31	20.7
1951	14	20.7
1952	18	20.7
1953	18	20.7
1954	21	20.7
1955	24	20.7
1956	30	20.7
1957	9	20.7
1958	18	20.7
1959	24	20.7
1960	15	18.6
1961	22	18.6
1962	22	18.6
1963	30	18.6
1964	18	18.6
1965	14	18.6
1966	14	18.6
1967	15	18.6
1968	17	18.6
1969	19	18.6
1970	17	20.5
1971	24	20.5

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

First to last qualifying date each year at Boolcarrol
Year	First date	Last date
1879	1879-02-01	1879-12-29
1880	1880-01-08	1880-10-21
1881	1881-01-11	1881-11-15
1882	1882-01-30	1882-12-30
1883	1883-01-02	1883-11-27
1884	1884-02-01	1884-12-10
1885	1885-01-02	1885-12-24
1886	1886-01-14	1886-12-08
1887	1887-01-19	1887-12-25
1888	1888-01-30	1888-05-12
1889	1889-01-21	1889-12-17
1890	1890-01-11	1890-12-23
1891	1891-01-10	1891-11-30
1892	1892-01-11	1892-12-30
1893	1893-01-17	1893-11-21
1894	1894-01-09	1894-12-15
1895	1895-01-16	1895-12-20
1896	1896-02-09	1896-12-02
1897	1897-01-03	1897-12-25
1898	1898-01-15	1898-12-23
1899	1899-01-19	1899-12-27
1900	1900-01-08	1900-09-21
1901	1901-02-17	1901-11-23
1902	1902-03-20	1902-12-18
1903	1903-01-26	1903-12-26
1904	1904-01-03	1904-12-18
1905	1905-01-16	1905-10-15
1906	1906-01-01	1906-11-14
1907	1907-01-04	1907-12-28
1908	1908-02-02	1908-12-12
1909	1909-01-20	1909-12-25
1910	1910-01-12	1910-12-11
1911	1911-01-01	1911-12-05
1912	1912-01-06	1912-12-23
1913	1913-01-06	1913-12-18
1914	1914-01-10	1914-12-31
1915	1915-02-08	1915-12-15
1916	1916-02-21	1916-12-13
1917	1917-01-19	1917-12-13
1918	1918-01-15	1918-10-30
1919	1919-01-08	1919-12-29
1920	1920-01-20	1920-12-31
1921	1921-01-28	1921-12-27
1922	1922-01-13	1922-12-18
1923	1923-01-07	1923-12-27
1924	1924-01-23	1924-12-12
1925	1925-02-09	1925-12-31
1926	1926-01-03	1926-12-27
1927	1927-01-07	1927-12-10
1928	1928-01-19	1928-10-12
1934	1934-01-06	1934-12-19
1935	1935-01-04	1935-12-01
1936	1936-01-09	1936-12-15
1937	1937-01-02	1937-12-04
1938	1938-01-24	1938-12-22
1939	1939-01-25	1939-08-03
1940	1940-03-18	1940-12-31
1941	1941-01-04	1941-12-25
1942	1942-02-02	1942-12-28
1943	1943-01-01	1943-11-19
1944	1944-01-12	1944-08-23
1945	1945-02-25	1945-10-01
1946	1946-01-19	1946-12-13
1947	1947-02-01	1947-12-15
1948	1948-01-02	1948-12-31
1949	1949-01-09	1949-11-22
1950	1950-01-18	1950-11-25
1951	1951-01-16	1951-11-27
1952	1952-02-19	1952-12-31
1953	1953-01-21	1953-11-27
1954	1954-01-01	1954-12-25
1955	1955-01-12	1955-12-17
1956	1956-01-20	1956-12-14
1957	1957-02-09	1957-12-31
1958	1958-01-20	1958-12-28
1959	1959-01-02	1959-12-25
1960	1960-01-21	1960-12-15
1961	1961-01-03	1961-12-19
1962	1962-01-01	1962-12-30
1963	1963-01-10	1963-12-08
1964	1964-01-13	1964-10-31
1965	1965-01-05	1965-12-15
1966	1966-01-07	1966-12-29
1967	1967-01-01	1967-12-29
1968	1968-01-06	1968-12-24
1969	1969-01-02	1969-11-16
1970	1970-01-10	1970-12-27
1971	1971-01-14	1971-11-28

Every Fixed Threshold

Fixed thresholds at Boolcarrol
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	88	31	1950	24
25 mm (0.98 in): Days with 25 mm or more rain	88	15	1950	10
50 mm (1.97 in): Days with 50 mm or more rain	59	5	1961	1
100 mm (3.94 in): Days with 100 mm or more rain	9	1	1882	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1879.

Download the Data

Data for Boolcarrol 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).

Boolcarrol Threshold Days by Year

Key Facts for Boolcarrol Thresholds

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

Every Fixed Threshold

Download the Data

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