Meruoca Threshold Days by Year (BR027699040)

4 fixed thresholds counted per year at Meruoca (BR027699040): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Meruoca Thresholds

Meruoca: days with 10 mm (0.39 in) or more of precipitation in 52 years, most in 1924 with 92.
Meruoca: days with 25 mm (0.98 in) or more of precipitation in 52 years, most in 1924 with 40.
Meruoca: days with 50 mm (1.97 in) or more of precipitation in 47 years, most in 1934 with 17.
Meruoca: days with 100 mm (3.94 in) or more of precipitation in 12 years, most in 1922 with 1.
4 fixed thresholds have at least one qualifying day at Meruoca.

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

52 years with a qualifying day

Days per year at Meruoca with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 92 in 1924.

Days with 10 mm (0.39 in) or more of precipitation per year at Meruoca
Year	Days	Decade average
1912	11	45.7
1913	67	45.7
1914	46	45.7
1915	19	45.7
1917	86	45.7
1918	78	45.7
1919	13	45.7
1920	52	63.6
1921	73	63.6
1922	55	63.6
1923	61	63.6
1924	92	63.6
1925	65	63.6
1926	69	63.6
1927	54	63.6
1928	42	63.6
1929	73	63.6
1930	62	53.3
1931	48	53.3
1932	33	53.3
1933	56	53.3
1934	79	53.3
1935	70	53.3
1936	36	53.3
1939	42	53.3
1940	60	45.9
1941	30	45.9
1942	31	45.9
1943	40	45.9
1944	42	45.9
1945	56	45.9
1946	54	45.9
1949	54	45.9
1951	31	41
1952	51	41
1956	41	41
1968	52	48
1969	44	48
1970	23	52
1971	66	52
1972	39	52
1973	82	52
1974	81	52
1975	61	52
1976	57	52
1977	39	52
1978	38	52
1979	34	52
1980	36	34.8
1981	32	34.8
1982	47	34.8
1983	24	34.8

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

First to last qualifying date each year at Meruoca
Year	First date	Last date
1912	1912-05-01	1912-12-13
1913	1913-01-05	1913-12-09
1914	1914-01-15	1914-08-15
1915	1915-01-24	1915-12-18
1917	1917-01-02	1917-12-18
1918	1918-01-03	1918-12-31
1919	1919-01-03	1919-12-26
1920	1920-01-01	1920-12-30
1921	1921-01-04	1921-12-15
1922	1922-01-12	1922-11-30
1923	1923-01-02	1923-07-09
1924	1924-01-11	1924-12-30
1925	1925-01-06	1925-12-31
1926	1926-01-03	1926-12-20
1927	1927-01-13	1927-12-07
1928	1928-01-07	1928-12-30
1929	1929-01-10	1929-12-30
1930	1930-01-10	1930-12-31
1931	1931-01-02	1931-12-25
1932	1932-01-27	1932-09-12
1933	1933-01-13	1933-12-30
1934	1934-01-02	1934-12-23
1935	1935-01-19	1935-10-03
1936	1936-01-01	1936-06-15
1939	1939-01-07	1939-11-03
1940	1940-01-04	1940-12-29
1941	1941-02-11	1941-07-01
1942	1942-01-14	1942-12-22
1943	1943-01-26	1943-12-22
1944	1944-01-21	1944-12-30
1945	1945-01-02	1945-06-19
1946	1946-01-02	1946-12-18
1949	1949-02-04	1949-11-30
1951	1951-01-10	1951-12-30
1952	1952-01-05	1952-12-16
1956	1956-01-22	1956-12-28
1968	1968-01-09	1968-12-28
1969	1969-01-21	1969-10-20
1970	1970-03-02	1970-11-09
1971	1971-01-11	1971-08-10
1972	1972-01-21	1972-12-22
1973	1973-01-01	1973-12-28
1974	1974-01-13	1974-12-27
1975	1975-01-07	1975-12-21
1976	1976-01-01	1976-11-15
1977	1977-01-02	1977-07-26
1978	1978-01-14	1978-12-05
1979	1979-01-14	1979-12-14
1980	1980-01-04	1980-12-09
1981	1981-01-11	1981-12-21
1982	1982-01-06	1982-12-17
1983	1983-01-28	1983-12-28

Every Fixed Threshold

Fixed thresholds at Meruoca
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	52	92	1924	24
25 mm (0.98 in): Days with 25 mm or more rain	52	40	1924	6
50 mm (1.97 in): Days with 50 mm or more rain	47	17	1934	7
100 mm (3.94 in): Days with 100 mm or more rain	12	1	1922	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1912.

Download the Data

Data for Meruoca 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).

Meruoca Threshold Days by Year (BR027699040)

Key Facts for Meruoca Thresholds

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

Every Fixed Threshold

Download the Data

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