Glenariff Threshold Days by Year

5 fixed thresholds counted per year at Glenariff (ASN00048092): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Glenariff Thresholds

Glenariff: days with 10 mm (0.39 in) or more of precipitation in 59 years, most in 1890 with 26.
Glenariff: days with 25 mm (0.98 in) or more of precipitation in 57 years, most in 1887 with 9.
Glenariff: days with 50 mm (1.97 in) or more of precipitation in 27 years, most in 1890 with 3.
Glenariff: days with 100 mm (3.94 in) or more of precipitation in 6 years, most in 1882 with 1.
5 fixed thresholds have at least one qualifying day at Glenariff.

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

59 years with a qualifying day

Days per year at Glenariff with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1890.

Days with 10 mm (0.39 in) or more of precipitation per year at Glenariff
Year	Days	Decade average
1882	12	12.6
1883	5	12.6
1884	9	12.6
1885	17	12.6
1886	14	12.6
1887	20	12.6
1888	5	12.6
1889	19	12.6
1890	26	14.8
1891	18	14.8
1894	18	14.8
1895	13	14.8
1896	17	14.8
1897	10	14.8
1898	9	14.8
1899	7	14.8
1900	6	10.7
1901	4	10.7
1902	4	10.7
1903	15	10.7
1904	12	10.7
1905	12	10.7
1906	18	10.7
1907	13	10.7
1908	13	10.7
1909	10	10.7
1910	10	10.4
1911	17	10.4
1912	6	10.4
1913	10	10.4
1914	10	10.4
1915	4	10.4
1916	16	10.4
1917	17	10.4
1918	7	10.4
1919	7	10.4
1924	14	10.7
1925	17	10.7
1926	9	10.7
1927	13	10.7
1928	8	10.7
1929	3	10.7
1930	16	12.9
1931	19	12.9
1932	11	12.9
1933	12	12.9
1934	9	12.9
1935	6	12.9
1936	22	12.9
1937	5	12.9
1938	10	12.9
1939	19	12.9
1940	5	8.9
1941	8	8.9
1942	15	8.9
1943	9	8.9
1944	7	8.9
1945	11	8.9
1946	7	8.9

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

First to last qualifying date each year at Glenariff
Year	First date	Last date
1882	1882-02-04	1882-12-30
1883	1883-02-26	1883-10-15
1884	1884-04-26	1884-12-15
1885	1885-01-02	1885-12-23
1886	1886-05-18	1886-12-07
1887	1887-01-05	1887-12-29
1888	1888-02-11	1888-09-01
1889	1889-01-03	1889-12-20
1890	1890-01-12	1890-12-21
1891	1891-01-05	1891-12-03
1894	1894-01-25	1894-12-16
1895	1895-01-16	1895-12-11
1896	1896-01-09	1896-12-01
1897	1897-01-04	1897-10-10
1898	1898-01-15	1898-11-05
1899	1899-03-27	1899-12-05
1900	1900-03-07	1900-06-22
1901	1901-04-21	1901-08-25
1902	1902-10-03	1902-12-04
1903	1903-01-27	1903-12-26
1904	1904-01-02	1904-12-18
1905	1905-03-01	1905-12-30
1906	1906-01-29	1906-12-19
1907	1907-01-10	1907-12-28
1908	1908-01-25	1908-12-17
1909	1909-01-20	1909-12-28
1910	1910-01-29	1910-12-18
1911	1911-01-11	1911-12-05
1912	1912-06-10	1912-12-23
1913	1913-02-06	1913-12-18
1914	1914-02-24	1914-12-28
1915	1915-05-14	1915-12-10
1916	1916-02-22	1916-12-03
1917	1917-02-03	1917-12-12
1918	1918-01-30	1918-08-21
1919	1919-02-03	1919-12-01
1924	1924-02-05	1924-12-16
1925	1925-01-13	1925-12-13
1926	1926-03-22	1926-09-26
1927	1927-01-28	1927-12-19
1928	1928-01-19	1928-11-04
1929	1929-03-23	1929-09-28
1930	1930-01-23	1930-12-16
1931	1931-01-24	1931-12-08
1932	1932-02-07	1932-11-14
1933	1933-04-30	1933-12-22
1934	1934-02-21	1934-11-22
1935	1935-01-05	1935-11-29
1936	1936-01-06	1936-12-17
1937	1937-01-12	1937-08-16
1938	1938-01-17	1938-11-16
1939	1939-01-25	1939-11-14
1940	1940-04-14	1940-09-21
1941	1941-01-01	1941-10-14
1942	1942-01-05	1942-12-31
1943	1943-01-01	1943-11-19
1944	1944-02-07	1944-08-22
1945	1945-01-31	1945-09-30
1946	1946-01-18	1946-12-28

Every Fixed Threshold

Fixed thresholds at Glenariff
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	59	26	1890	7
25 mm (0.98 in): Days with 25 mm or more rain	57	9	1887	2
50 mm (1.97 in): Days with 50 mm or more rain	27	3	1890	2
100 mm (3.94 in): Days with 100 mm or more rain	6	1	1882	1
200 mm (7.87 in): Days with 200 mm or more rain	1	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 1882.

Download the Data

Data for Glenariff 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).

Glenariff Threshold Days by Year

Key Facts for Glenariff Thresholds

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

Every Fixed Threshold

Download the Data

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