Patan Threshold Days by Year (IN011180900)

5 fixed thresholds counted per year at Patan (IN011180900): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Patan Thresholds

Patan: days with 10 mm (0.39 in) or more of precipitation in 55 years, most in 1931 with 50.
Patan: days with 25 mm (0.98 in) or more of precipitation in 55 years, most in 1961 with 28.
Patan: days with 50 mm (1.97 in) or more of precipitation in 55 years, most in 1919 with 11.
Patan: days with 100 mm (3.94 in) or more of precipitation in 30 years, most in 1935 with 3.
5 fixed thresholds have at least one qualifying day at Patan.

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

55 years with a qualifying day

Days per year at Patan with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 50 in 1931.

Days with 10 mm (0.39 in) or more of precipitation per year at Patan
Year	Days	Decade average
1914	31	37
1915	33	37
1916	40	37
1917	48	37
1918	28	37
1919	42	37
1920	22	32.5
1921	27	32.5
1922	34	32.5
1923	44	32.5
1924	32	32.5
1925	36	32.5
1926	37	32.5
1927	30	32.5
1928	29	32.5
1929	34	32.5
1930	35	37
1931	50	37
1932	36	37
1933	40	37
1934	39	37
1935	32	37
1936	37	37
1937	33	37
1938	39	37
1939	29	37
1940	28	34.2
1941	19	34.2
1942	40	34.2
1943	34	34.2
1944	47	34.2
1945	37	34.2
1946	31	34.2
1947	37	34.2
1948	35	34.2
1949	34	34.2
1950	25	30.6
1951	27	30.6
1952	27	30.6
1953	28	30.6
1954	31	30.6
1955	39	30.6
1957	25	30.6
1958	36	30.6
1959	37	30.6
1960	38	31.3
1961	49	31.3
1962	24	31.3
1963	35	31.3
1964	31	31.3
1965	20	31.3
1966	28	31.3
1967	34	31.3
1968	26	31.3
1969	28	31.3

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

First to last qualifying date each year at Patan
Year	First date	Last date
1914	1914-03-02	1914-09-17
1915	1915-02-02	1915-10-05
1916	1916-02-14	1916-11-25
1917	1917-02-03	1917-10-29
1918	1918-06-03	1918-11-30
1919	1919-01-17	1919-10-05
1920	1920-06-11	1920-09-11
1921	1921-01-21	1921-09-13
1922	1922-01-08	1922-11-13
1923	1923-06-15	1923-12-04
1924	1924-01-28	1924-12-12
1925	1925-06-01	1925-11-10
1926	1926-04-04	1926-10-07
1927	1927-02-10	1927-11-14
1928	1928-02-02	1928-12-07
1929	1929-04-14	1929-12-24
1930	1930-04-02	1930-10-30
1931	1931-01-29	1931-11-04
1932	1932-06-23	1932-10-17
1933	1933-02-21	1933-10-22
1934	1934-06-07	1934-11-06
1935	1935-01-18	1935-09-20
1936	1936-02-07	1936-11-15
1937	1937-02-18	1937-10-06
1938	1938-02-07	1938-10-12
1939	1939-01-29	1939-10-05
1940	1940-06-19	1940-12-20
1941	1941-01-17	1941-09-10
1942	1942-01-28	1942-12-24
1943	1943-01-08	1943-10-20
1944	1944-01-09	1944-12-18
1945	1945-01-17	1945-10-21
1946	1946-04-14	1946-11-20
1947	1947-01-28	1947-10-04
1948	1948-01-04	1948-11-24
1949	1949-02-05	1949-10-30
1950	1950-02-23	1950-12-27
1951	1951-02-06	1951-10-16
1952	1952-02-05	1952-09-22
1953	1953-07-01	1953-09-10
1954	1954-01-09	1954-09-23
1955	1955-01-22	1955-10-13
1957	1957-01-17	1957-09-14
1958	1958-03-14	1958-10-23
1959	1959-01-20	1959-10-11
1960	1960-01-02	1960-10-11
1961	1961-01-27	1961-11-07
1962	1962-02-18	1962-12-05
1963	1963-02-26	1963-09-15
1964	1964-06-24	1964-09-25
1965	1965-06-15	1965-10-20
1966	1966-06-12	1966-11-30
1967	1967-03-17	1967-12-22
1968	1968-01-09	1968-09-17
1969	1969-06-07	1969-09-22

Every Fixed Threshold

Fixed thresholds at Patan
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	55	50	1931	28
25 mm (0.98 in): Days with 25 mm or more rain	55	28	1961	13
50 mm (1.97 in): Days with 50 mm or more rain	55	11	1919	3
100 mm (3.94 in): Days with 100 mm or more rain	30	3	1935	2
200 mm (7.87 in): Days with 200 mm or more rain	4	1	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 1914.

Download the Data

Data for Patan 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).

Patan Threshold Days by Year (IN011180900)

Key Facts for Patan Thresholds

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

Every Fixed Threshold

Download the Data

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