Tirrengower Threshold Days by Year

4 fixed thresholds counted per year at Tirrengower (ASN00090089): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tirrengower Thresholds

Tirrengower: days with 10 mm (0.39 in) or more of precipitation in 58 years, most in 1952 with 50.
Tirrengower: days with 25 mm (0.98 in) or more of precipitation in 52 years, most in 1952 with 8.
Tirrengower: days with 50 mm (1.97 in) or more of precipitation in 9 years, most in 1889 with 2.
Tirrengower: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1937 with 1.
4 fixed thresholds have at least one qualifying day at Tirrengower.

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

58 years with a qualifying day

Days per year at Tirrengower with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 50 in 1952.

Days with 10 mm (0.39 in) or more of precipitation per year at Tirrengower
Year	Days	Decade average
1885	22	25
1886	28	25
1887	26	25
1888	22	25
1889	27	25
1890	23	21.6
1891	18	21.6
1893	23	21.6
1894	25	21.6
1895	19	21.6
1896	17	21.6
1897	20	21.6
1898	14	21.6
1899	35	21.6
1900	18	21
1901	19	21
1902	17	21
1903	22	21
1904	25	21
1905	19	21
1906	28	21
1907	16	21
1908	18	21
1909	28	21
1910	25	20
1912	15	20
1933	19	19.4
1934	19	19.4
1935	27	19.4
1936	18	19.4
1937	19	19.4
1938	10	19.4
1939	24	19.4
1940	13	20.1
1941	20	20.1
1942	24	20.1
1943	24	20.1
1944	12	20.1
1945	11	20.1
1946	23	20.1
1947	29	20.1
1948	23	20.1
1949	22	20.1
1950	21	26.8
1951	35	26.8
1952	50	26.8
1953	24	26.8
1954	15	26.8
1955	31	26.8
1956	27	26.8
1957	23	26.8
1958	20	26.8
1959	22	26.8
1960	33	24
1961	18	24
1962	16	24
1963	14	24
1964	39	24

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

First to last qualifying date each year at Tirrengower
Year	First date	Last date
1885	1885-01-06	1885-10-11
1886	1886-01-06	1886-12-18
1887	1887-01-14	1887-12-22
1888	1888-03-17	1888-12-21
1889	1889-01-02	1889-12-21
1890	1890-01-22	1890-12-23
1891	1891-01-05	1891-12-11
1893	1893-02-03	1893-12-25
1894	1894-01-25	1894-12-14
1895	1895-01-03	1895-12-01
1896	1896-01-17	1896-12-27
1897	1897-01-08	1897-11-02
1898	1898-02-28	1898-12-07
1899	1899-01-01	1899-12-03
1900	1900-01-21	1900-08-18
1901	1901-01-04	1901-11-14
1902	1902-01-01	1902-12-25
1903	1903-01-22	1903-11-29
1904	1904-01-03	1904-11-04
1905	1905-01-16	1905-12-03
1906	1906-02-28	1906-11-27
1907	1907-03-05	1907-12-29
1908	1908-03-09	1908-10-17
1909	1909-01-23	1909-12-04
1910	1910-02-05	1910-12-23
1912	1912-02-24	1912-12-10
1933	1933-02-24	1933-12-16
1934	1934-03-15	1934-12-30
1935	1935-01-05	1935-11-16
1936	1936-02-22	1936-12-13
1937	1937-01-01	1937-12-07
1938	1938-01-26	1938-12-11
1939	1939-02-16	1939-12-05
1940	1940-01-05	1940-12-20
1941	1941-01-25	1941-11-19
1942	1942-01-20	1942-12-19
1943	1943-01-16	1943-11-24
1944	1944-04-20	1944-12-21
1945	1945-02-22	1945-12-27
1946	1946-01-04	1946-12-29
1947	1947-02-04	1947-12-25
1948	1948-03-02	1948-11-08
1949	1949-01-16	1949-11-22
1950	1950-01-09	1950-12-20
1951	1951-02-18	1951-12-15
1952	1952-01-05	1952-12-11
1953	1953-04-04	1953-12-07
1954	1954-01-28	1954-12-12
1955	1955-01-28	1955-12-27
1956	1956-03-21	1956-12-27
1957	1957-02-07	1957-12-27
1958	1958-05-04	1958-11-28
1959	1959-01-25	1959-12-25
1960	1960-01-09	1960-11-21
1961	1961-03-01	1961-12-16
1962	1962-01-09	1962-11-11
1963	1963-01-14	1963-09-11
1964	1964-01-15	1964-12-23

Every Fixed Threshold

Fixed thresholds at Tirrengower
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	58	50	1952	39
25 mm (0.98 in): Days with 25 mm or more rain	52	8	1952	3
50 mm (1.97 in): Days with 50 mm or more rain	9	2	1889	2
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1937	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 Tirrengower 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).

Tirrengower Threshold Days by Year

Key Facts for Tirrengower Thresholds

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

Every Fixed Threshold

Download the Data

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