Patan Threshold Days by Year (IN012220500)

5 fixed thresholds counted per year at Patan (IN012220500): 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 68 years, most in 1959 with 67.
Patan: days with 25 mm (0.98 in) or more of precipitation in 68 years, most in 1946 with 41.
Patan: days with 50 mm (1.97 in) or more of precipitation in 68 years, most in 1944 with 21.
Patan: days with 100 mm (3.94 in) or more of precipitation in 45 years, most in 1944 with 9.
5 fixed thresholds have at least one qualifying day at Patan.

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

68 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 67 in 1959.

Days with 10 mm (0.39 in) or more of precipitation per year at Patan
Year	Days	Decade average
1901	57	43.1
1902	41	43.1
1903	42	43.1
1904	32	43.1
1905	31	43.1
1906	31	43.1
1907	51	43.1
1908	59	43.1
1909	44	43.1
1910	43	44.3
1911	33	44.3
1912	43	44.3
1913	45	44.3
1914	54	44.3
1915	42	44.3
1916	53	44.3
1917	60	44.3
1918	23	44.3
1919	47	44.3
1920	52	45.9
1921	39	45.9
1922	40	45.9
1923	52	45.9
1924	42	45.9
1925	39	45.9
1926	45	45.9
1927	57	45.9
1928	52	45.9
1929	41	45.9
1930	54	51.5
1931	63	51.5
1932	66	51.5
1933	54	51.5
1934	47	51.5
1935	31	51.5
1936	50	51.5
1937	56	51.5
1938	53	51.5
1939	41	51.5
1940	45	44.8
1941	39	44.8
1942	47	44.8
1943	40	44.8
1944	49	44.8
1945	48	44.8
1946	63	44.8
1947	41	44.8
1948	39	44.8
1949	37	44.8
1950	50	48.7
1951	38	48.7
1952	41	48.7
1953	45	48.7
1954	38	48.7
1955	55	48.7
1956	51	48.7
1957	54	48.7
1958	48	48.7
1959	67	48.7
1960	49	46.6
1961	58	46.6
1962	43	46.6
1963	36	46.6
1964	56	46.6
1965	44	46.6
1966	45	46.6
1969	42	46.6
1970	55	55

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
1901	1901-01-13	1901-10-23
1902	1902-05-04	1902-12-19
1903	1903-05-25	1903-11-03
1904	1904-04-02	1904-10-17
1905	1905-05-21	1905-11-26
1906	1906-06-07	1906-12-30
1907	1907-04-22	1907-11-28
1908	1908-04-17	1908-09-23
1909	1909-06-03	1909-10-09
1910	1910-05-16	1910-11-08
1911	1911-05-24	1911-12-09
1912	1912-04-18	1912-11-23
1913	1913-05-25	1913-10-14
1914	1914-06-13	1914-12-15
1915	1915-04-22	1915-11-07
1916	1916-05-27	1916-11-10
1917	1917-02-03	1917-11-22
1918	1918-05-09	1918-11-27
1919	1919-05-28	1919-11-19
1920	1920-04-29	1920-10-06
1921	1921-06-20	1921-10-11
1922	1922-04-17	1922-11-12
1923	1923-06-13	1923-10-19
1924	1924-06-07	1924-11-23
1925	1925-05-05	1925-10-09
1926	1926-05-03	1926-09-30
1927	1927-05-31	1927-11-11
1928	1928-04-05	1928-11-13
1929	1929-04-07	1929-10-05
1930	1930-05-09	1930-11-05
1931	1931-04-14	1931-12-15
1932	1932-04-24	1932-11-07
1933	1933-05-12	1933-12-19
1934	1934-06-11	1934-11-02
1935	1935-06-18	1935-10-29
1936	1936-05-17	1936-11-19
1937	1937-04-19	1937-10-05
1938	1938-03-28	1938-11-09
1939	1939-06-07	1939-11-03
1940	1940-04-25	1940-10-22
1941	1941-01-08	1941-10-05
1942	1942-05-18	1942-12-22
1943	1943-05-20	1943-11-03
1944	1944-05-18	1944-11-03
1945	1945-04-19	1945-10-16
1946	1946-04-21	1946-12-10
1947	1947-03-29	1947-10-02
1948	1948-03-06	1948-11-23
1949	1949-05-09	1949-11-19
1950	1950-05-08	1950-10-15
1951	1951-05-07	1951-11-24
1952	1952-04-18	1952-10-19
1953	1953-04-04	1953-10-28
1954	1954-03-16	1954-10-20
1955	1955-04-23	1955-11-26
1956	1956-05-01	1956-11-23
1957	1957-05-23	1957-11-15
1958	1958-04-15	1958-10-09
1959	1959-04-19	1959-11-15
1960	1960-05-01	1960-11-07
1961	1961-05-03	1961-10-11
1962	1962-05-19	1962-12-06
1963	1963-06-10	1963-10-24
1964	1964-04-28	1964-09-30
1965	1965-06-21	1965-12-11
1966	1966-05-02	1966-11-13
1969	1969-06-05	1969-11-14
1970	1970-05-25	1970-09-22

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	68	67	1959	55
25 mm (0.98 in): Days with 25 mm or more rain	68	41	1946	24
50 mm (1.97 in): Days with 50 mm or more rain	68	21	1944	7
100 mm (3.94 in): Days with 100 mm or more rain	45	9	1944	7
200 mm (7.87 in): Days with 200 mm or more rain	3	1	1921	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1901.

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 (IN012220500)

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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