Merlin Station Threshold Days by Year (ASN00030034)

4 fixed thresholds counted per year at Merlin Station (ASN00030034): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Merlin Station Thresholds

Merlin Station: days with 10 mm (0.39 in) or more of precipitation in 75 years, most in 1950 with 36.
Merlin Station: days with 25 mm (0.98 in) or more of precipitation in 74 years, most in 1974 with 20.
Merlin Station: days with 50 mm (1.97 in) or more of precipitation in 56 years, most in 1974 with 8.
Merlin Station: days with 100 mm (3.94 in) or more of precipitation in 16 years, most in 1954 with 2.
4 fixed thresholds have at least one qualifying day at Merlin Station.

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

75 years with a qualifying day

Days per year at Merlin Station with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 36 in 1950.

Days with 10 mm (0.39 in) or more of precipitation per year at Merlin Station
Year	Days	Decade average
1913	22	16.4
1914	11	16.4
1915	6	16.4
1916	21	16.4
1917	25	16.4
1918	22	16.4
1919	8	16.4
1932	5	12.5
1933	20	12.5
1934	12	12.5
1935	5	12.5
1936	23	12.5
1937	11	12.5
1938	12	12.5
1939	12	12.5
1940	17	13.8
1941	18	13.8
1942	18	13.8
1943	14	13.8
1944	21	13.8
1945	7	13.8
1946	11	13.8
1947	16	13.8
1948	8	13.8
1949	8	13.8
1950	36	17.4
1951	12	17.4
1952	7	17.4
1953	10	17.4
1954	22	17.4
1961	11	13
1962	17	13
1963	22	13
1964	13	13
1965	7	13
1966	11	13
1967	17	13
1968	15	13
1969	4	13
1970	8	17.2
1971	21	17.2
1972	14	17.2
1973	20	17.2
1974	29	17.2
1975	22	17.2
1976	16	17.2
1977	20	17.2
1978	13	17.2
1979	9	17.2
1980	14	15.4
1981	22	15.4
1982	12	15.4
1983	15	15.4
1984	24	15.4
1985	17	15.4
1986	8	15.4
1987	13	15.4
1988	8	15.4
1989	21	15.4
1990	12	13.9
1991	26	13.9
1992	12	13.9
1993	6	13.9
1994	9	13.9
1995	15	13.9
1996	12	13.9
1997	16	13.9
1998	16	13.9
1999	15	13.9
2000	23	14
2001	12	14
2002	9	14
2004	12	14
2022	20	26
2025	32	26

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

First to last qualifying date each year at Merlin Station
Year	First date	Last date
1913	1913-01-03	1913-12-20
1914	1914-01-13	1914-12-25
1915	1915-09-23	1915-12-29
1916	1916-01-27	1916-12-31
1917	1917-01-01	1917-12-12
1918	1918-01-02	1918-12-05
1919	1919-01-14	1919-12-06
1932	1932-01-14	1932-12-24
1933	1933-01-08	1933-12-07
1934	1934-01-07	1934-12-13
1935	1935-01-04	1935-10-21
1936	1936-01-06	1936-12-31
1937	1937-01-02	1937-12-14
1938	1938-01-10	1938-11-12
1939	1939-01-22	1939-12-24
1940	1940-01-18	1940-11-14
1941	1941-01-04	1941-11-06
1942	1942-01-18	1942-12-29
1943	1943-01-15	1943-12-20
1944	1944-01-20	1944-12-19
1945	1945-02-26	1945-11-19
1946	1946-01-10	1946-12-30
1947	1947-01-06	1947-12-21
1948	1948-02-02	1948-12-31
1949	1949-01-27	1949-12-19
1950	1950-01-02	1950-12-29
1951	1951-01-01	1951-12-29
1952	1952-01-10	1952-11-27
1953	1953-01-07	1953-11-28
1954	1954-01-01	1954-12-15
1961	1961-01-02	1961-12-12
1962	1962-02-07	1962-12-29
1963	1963-01-10	1963-12-31
1964	1964-01-02	1964-12-30
1965	1965-03-06	1965-12-14
1966	1966-01-04	1966-11-08
1967	1967-01-01	1967-12-31
1968	1968-01-04	1968-12-21
1969	1969-02-15	1969-12-24
1970	1970-01-28	1970-12-22
1971	1971-01-25	1971-12-27
1972	1972-01-06	1972-12-09
1973	1973-01-13	1973-12-22
1974	1974-01-01	1974-12-28
1975	1975-01-03	1975-12-30
1976	1976-01-12	1976-12-22
1977	1977-01-06	1977-12-23
1978	1978-01-29	1978-12-25
1979	1979-02-05	1979-12-27
1980	1980-01-05	1980-12-29
1981	1981-01-04	1981-11-25
1982	1982-01-06	1982-12-22
1983	1983-01-02	1983-12-07
1984	1984-01-03	1984-12-21
1985	1985-01-24	1985-12-31
1986	1986-02-03	1986-12-07
1987	1987-01-01	1987-11-21
1988	1988-01-26	1988-12-12
1989	1989-01-03	1989-12-16
1990	1990-03-02	1990-12-28
1991	1991-01-02	1991-11-16
1992	1992-01-28	1992-12-19
1993	1993-02-17	1993-12-23
1994	1994-01-23	1994-12-29
1995	1995-01-05	1995-12-30
1996	1996-01-02	1996-12-12
1997	1997-01-30	1997-12-23
1998	1998-01-11	1998-11-29
1999	1999-01-03	1999-12-19
2000	2000-02-16	2000-12-29
2001	2001-02-04	2001-12-14
2002	2002-01-10	2002-02-28
2004	2004-01-10	2004-12-27
2022	2022-01-26	2022-12-25
2025	2025-01-01	2025-12-31

Every Fixed Threshold

Fixed thresholds at Merlin Station
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	75	36	1950	32
25 mm (0.98 in): Days with 25 mm or more rain	74	20	1974	12
50 mm (1.97 in): Days with 50 mm or more rain	56	8	1974	7
100 mm (3.94 in): Days with 100 mm or more rain	16	2	1954	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1913.

Download the Data

Data for Merlin Station 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).

Merlin Station Threshold Days by Year (ASN00030034)

Key Facts for Merlin Station Thresholds

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

Every Fixed Threshold

Download the Data

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