Sonahatu Threshold Days by Year (IN004121000)

4 fixed thresholds counted per year at Sonahatu (IN004121000): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sonahatu Thresholds

Sonahatu: days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 1924 with 59.
Sonahatu: days with 25 mm (0.98 in) or more of precipitation in 40 years, most in 1923 with 36.
Sonahatu: days with 50 mm (1.97 in) or more of precipitation in 36 years, most in 1923 with 12.
Sonahatu: days with 100 mm (3.94 in) or more of precipitation in 19 years, most in 1923 with 2.
4 fixed thresholds have at least one qualifying day at Sonahatu.

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

40 years with a qualifying day

Days per year at Sonahatu with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 59 in 1924.

Days with 10 mm (0.39 in) or more of precipitation per year at Sonahatu
Year	Days	Decade average
1919	33	33
1920	25	43.9
1922	36	43.9
1923	51	43.9
1924	59	43.9
1925	41	43.9
1926	52	43.9
1927	48	43.9
1928	33	43.9
1929	50	43.9
1930	40	39.5
1931	41	39.5
1932	42	39.5
1933	48	39.5
1934	28	39.5
1935	35	39.5
1936	41	39.5
1937	45	39.5
1938	39	39.5
1939	36	39.5
1940	34	41
1941	38	41
1942	43	41
1943	42	41
1947	37	41
1948	47	41
1949	46	41
1950	31	37.8
1951	34	37.8
1952	34	37.8
1959	52	37.8
1960	43	32.9
1961	35	32.9
1962	31	32.9
1963	36	32.9
1965	35	32.9
1966	29	32.9
1967	29	32.9
1969	25	32.9
1970	36	36

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

First to last qualifying date each year at Sonahatu
Year	First date	Last date
1919	1919-01-28	1919-09-17
1920	1920-03-05	1920-08-19
1922	1922-04-09	1922-10-03
1923	1923-02-13	1923-09-29
1924	1924-01-22	1924-11-20
1925	1925-02-11	1925-10-15
1926	1926-01-09	1926-12-18
1927	1927-01-13	1927-10-06
1928	1928-01-29	1928-10-09
1929	1929-01-19	1929-12-25
1930	1930-06-14	1930-11-19
1931	1931-02-11	1931-10-13
1932	1932-02-20	1932-11-05
1933	1933-01-21	1933-10-03
1934	1934-02-18	1934-12-28
1935	1935-01-03	1935-09-18
1936	1936-01-31	1936-10-29
1937	1937-02-13	1937-10-03
1938	1938-01-09	1938-09-19
1939	1939-02-24	1939-10-24
1940	1940-02-10	1940-12-22
1941	1941-01-19	1941-11-18
1942	1942-02-19	1942-10-08
1943	1943-01-11	1943-10-19
1947	1947-01-29	1947-10-08
1948	1948-01-05	1948-11-08
1949	1949-03-05	1949-10-16
1950	1950-04-12	1950-10-13
1951	1951-03-26	1951-10-03
1952	1952-03-03	1952-09-17
1959	1959-01-30	1959-10-22
1960	1960-01-05	1960-10-13
1961	1961-02-07	1961-10-31
1962	1962-02-08	1962-12-09
1963	1963-05-10	1963-10-25
1965	1965-03-30	1965-10-20
1966	1966-01-04	1966-12-01
1967	1967-03-24	1967-08-31
1969	1969-01-14	1969-11-13
1970	1970-01-26	1970-09-29

Every Fixed Threshold

Fixed thresholds at Sonahatu
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	40	59	1924	36
25 mm (0.98 in): Days with 25 mm or more rain	40	36	1923	14
50 mm (1.97 in): Days with 50 mm or more rain	36	12	1923	8
100 mm (3.94 in): Days with 100 mm or more rain	19	2	1923	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1919.

Download the Data

Data for Sonahatu 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).

Sonahatu Threshold Days by Year (IN004121000)

Key Facts for Sonahatu Thresholds

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

Every Fixed Threshold

Download the Data

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