Sonepur Threshold Days by Year (IN017020400)

5 fixed thresholds counted per year at Sonepur (IN017020400): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sonepur Thresholds

Sonepur: days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 1917 with 48.
Sonepur: days with 25 mm (0.98 in) or more of precipitation in 40 years, most in 1917 with 27.
Sonepur: days with 50 mm (1.97 in) or more of precipitation in 39 years, most in 1939 with 13.
Sonepur: days with 100 mm (3.94 in) or more of precipitation in 30 years, most in 1933 with 7.
5 fixed thresholds have at least one qualifying day at Sonepur.

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

40 years with a qualifying day

Days per year at Sonepur with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 48 in 1917.

Days with 10 mm (0.39 in) or more of precipitation per year at Sonepur
Year	Days	Decade average
1911	42	38.2
1912	37	38.2
1913	35	38.2
1914	30	38.2
1915	31	38.2
1916	34	38.2
1917	48	38.2
1918	43	38.2
1919	44	38.2
1920	33	36.2
1921	31	36.2
1922	40	36.2
1923	27	36.2
1924	37	36.2
1925	40	36.2
1926	35	36.2
1927	35	36.2
1928	39	36.2
1929	45	36.2
1930	43	37.5
1931	35	37.5
1932	41	37.5
1933	47	37.5
1934	27	37.5
1935	29	37.5
1936	45	37.5
1937	39	37.5
1938	30	37.5
1939	39	37.5
1940	37	33
1941	32	33
1942	37	33
1943	33	33
1944	39	33
1945	29	33
1946	24	33
1947	28	33
1948	38	33
1950	34	34
1967	39	39

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

First to last qualifying date each year at Sonepur
Year	First date	Last date
1911	1911-06-07	1911-11-27
1912	1912-02-05	1912-11-01
1913	1913-02-16	1913-10-15
1914	1914-02-17	1914-09-24
1915	1915-01-18	1915-10-22
1916	1916-06-12	1916-11-02
1917	1917-02-03	1917-10-30
1918	1918-01-20	1918-09-15
1919	1919-01-23	1919-11-11
1920	1920-03-22	1920-09-13
1921	1921-01-22	1921-10-03
1922	1922-01-04	1922-09-22
1923	1923-02-21	1923-11-03
1924	1924-01-06	1924-11-26
1925	1925-04-22	1925-12-22
1926	1926-01-05	1926-12-18
1927	1927-02-24	1927-11-03
1928	1928-04-09	1928-10-27
1929	1929-01-31	1929-10-20
1930	1930-04-03	1930-11-19
1931	1931-02-19	1931-11-06
1932	1932-02-19	1932-11-04
1933	1933-01-25	1933-12-25
1934	1934-06-23	1934-10-03
1935	1935-04-01	1935-09-23
1936	1936-02-08	1936-11-12
1937	1937-02-21	1937-09-28
1938	1938-01-16	1938-10-17
1939	1939-02-04	1939-10-25
1940	1940-03-11	1940-12-22
1941	1941-01-27	1941-11-19
1942	1942-01-03	1942-09-28
1943	1943-01-22	1943-09-26
1944	1944-01-14	1944-10-21
1945	1945-01-06	1945-09-30
1946	1946-06-11	1946-11-07
1947	1947-02-19	1947-12-16
1948	1948-02-12	1948-10-11
1950	1950-02-23	1950-11-04
1967	1967-01-18	1967-09-27

Every Fixed Threshold

Fixed thresholds at Sonepur
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	48	1917	39
25 mm (0.98 in): Days with 25 mm or more rain	40	27	1917	18
50 mm (1.97 in): Days with 50 mm or more rain	39	13	1939	6
100 mm (3.94 in): Days with 100 mm or more rain	30	7	1933	2
200 mm (7.87 in): Days with 200 mm or more rain	6	1	1915	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1911.

Download the Data

Data for Sonepur 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).

Sonepur Threshold Days by Year (IN017020400)

Key Facts for Sonepur Thresholds

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

Every Fixed Threshold

Download the Data

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