Sepao Threshold Days by Year (IN019051501)

4 fixed thresholds counted per year at Sepao (IN019051501): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sepao Thresholds

Sepao: days with 10 mm (0.39 in) or more of precipitation in 63 years, most in 1917 with 36.
Sepao: days with 25 mm (0.98 in) or more of precipitation in 63 years, most in 1942 with 19.
Sepao: days with 50 mm (1.97 in) or more of precipitation in 56 years, most in 1958 with 9.
Sepao: days with 100 mm (3.94 in) or more of precipitation in 24 years, most in 1935 with 3.
4 fixed thresholds have at least one qualifying day at Sepao.

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

63 years with a qualifying day

Days per year at Sepao with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 36 in 1917.

Days with 10 mm (0.39 in) or more of precipitation per year at Sepao
Year	Days	Decade average
1903	21	18.3
1904	18	18.3
1905	7	18.3
1906	21	18.3
1907	12	18.3
1908	26	18.3
1909	23	18.3
1910	24	20.5
1911	18	20.5
1912	19	20.5
1913	14	20.5
1914	18	20.5
1915	14	20.5
1916	26	20.5
1917	36	20.5
1918	14	20.5
1919	22	20.5
1920	13	18.7
1921	16	18.7
1922	20	18.7
1923	22	18.7
1924	27	18.7
1929	14	18.7
1930	15	18.9
1931	17	18.9
1932	14	18.9
1933	26	18.9
1934	26	18.9
1935	22	18.9
1936	20	18.9
1937	16	18.9
1938	19	18.9
1939	14	18.9
1940	16	20.4
1941	9	20.4
1942	32	20.4
1943	20	20.4
1944	21	20.4
1945	20	20.4
1946	18	20.4
1947	21	20.4
1948	21	20.4
1949	26	20.4
1950	26	20.9
1951	14	20.9
1952	24	20.9
1953	13	20.9
1954	19	20.9
1955	28	20.9
1956	17	20.9
1957	21	20.9
1958	30	20.9
1959	17	20.9
1960	18	18
1961	28	18
1962	22	18
1963	18	18
1964	21	18
1965	13	18
1966	9	18
1968	17	18
1969	16	18
1970	26	26

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

First to last qualifying date each year at Sepao
Year	First date	Last date
1903	1903-07-09	1903-10-09
1904	1904-07-06	1904-12-18
1905	1905-02-17	1905-09-28
1906	1906-06-24	1906-09-14
1907	1907-02-17	1907-08-26
1908	1908-01-11	1908-09-02
1909	1909-04-21	1909-12-14
1910	1910-01-16	1910-10-03
1911	1911-01-02	1911-11-19
1912	1912-01-10	1912-09-26
1913	1913-02-16	1913-09-05
1914	1914-05-09	1914-10-17
1915	1915-01-18	1915-08-31
1916	1916-02-17	1916-10-06
1917	1917-02-04	1917-10-25
1918	1918-01-22	1918-09-04
1919	1919-01-19	1919-09-02
1920	1920-02-04	1920-08-09
1921	1921-01-21	1921-09-22
1922	1922-06-03	1922-12-13
1923	1923-06-22	1923-12-03
1924	1924-01-04	1924-12-10
1929	1929-06-14	1929-08-23
1930	1930-01-14	1930-10-31
1931	1931-07-04	1931-10-16
1932	1932-03-26	1932-09-25
1933	1933-05-05	1933-10-20
1934	1934-01-11	1934-12-27
1935	1935-01-25	1935-09-17
1936	1936-06-22	1936-12-04
1937	1937-02-22	1937-12-31
1938	1938-06-14	1938-08-29
1939	1939-06-26	1939-09-18
1940	1940-01-19	1940-12-11
1941	1941-06-07	1941-09-10
1942	1942-01-15	1942-09-20
1943	1943-04-09	1943-09-12
1944	1944-02-19	1944-09-18
1945	1945-05-21	1945-09-11
1946	1946-05-31	1946-10-08
1947	1947-06-07	1947-10-05
1948	1948-07-06	1948-09-08
1949	1949-06-28	1949-09-30
1950	1950-03-06	1950-09-20
1951	1951-03-25	1951-11-25
1952	1952-06-21	1952-09-13
1953	1953-01-11	1953-08-30
1954	1954-01-09	1954-09-28
1955	1955-02-22	1955-09-24
1956	1956-07-02	1956-10-11
1957	1957-06-07	1957-09-15
1958	1958-07-09	1958-10-04
1959	1959-07-07	1959-11-06
1960	1960-04-19	1960-10-05
1961	1961-01-02	1961-11-15
1962	1962-01-26	1962-09-21
1963	1963-06-06	1963-09-16
1964	1964-07-07	1964-09-25
1965	1965-07-08	1965-10-23
1966	1966-06-18	1966-08-11
1968	1968-07-06	1968-10-09
1969	1969-05-12	1969-09-23
1970	1970-02-19	1970-09-14

Every Fixed Threshold

Fixed thresholds at Sepao
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	63	36	1917	26
25 mm (0.98 in): Days with 25 mm or more rain	63	19	1942	7
50 mm (1.97 in): Days with 50 mm or more rain	56	9	1958	1
100 mm (3.94 in): Days with 100 mm or more rain	24	3	1935	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1903.

Download the Data

Data for Sepao 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).

Sepao Threshold Days by Year (IN019051501)

Key Facts for Sepao Thresholds

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

Every Fixed Threshold

Download the Data

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