Isakapally Threshold Days by Year (IN001160201)

5 fixed thresholds counted per year at Isakapally (IN001160201): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Isakapally Thresholds

Isakapally: days with 10 mm (0.39 in) or more of precipitation in 67 years, most in 1956 with 36.
Isakapally: days with 25 mm (0.98 in) or more of precipitation in 67 years, most in 1925 with 21.
Isakapally: days with 50 mm (1.97 in) or more of precipitation in 63 years, most in 1918 with 11.
Isakapally: days with 100 mm (3.94 in) or more of precipitation in 47 years, most in 1902 with 4.
5 fixed thresholds have at least one qualifying day at Isakapally.

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

67 years with a qualifying day

Days per year at Isakapally with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 36 in 1956.

Days with 10 mm (0.39 in) or more of precipitation per year at Isakapally
Year	Days	Decade average
1901	27	22.4
1902	32	22.4
1903	30	22.4
1904	17	22.4
1905	16	22.4
1906	28	22.4
1907	18	22.4
1908	15	22.4
1909	19	22.4
1910	26	23.5
1911	18	23.5
1912	25	23.5
1913	17	23.5
1914	21	23.5
1915	26	23.5
1916	28	23.5
1917	30	23.5
1918	22	23.5
1919	22	23.5
1920	23	21.3
1921	22	21.3
1922	20	21.3
1923	17	21.3
1924	19	21.3
1925	34	21.3
1926	15	21.3
1927	20	21.3
1928	15	21.3
1929	28	21.3
1930	28	24.4
1931	25	24.4
1932	20	24.4
1933	28	24.4
1934	17	24.4
1935	18	24.4
1936	34	24.4
1937	23	24.4
1938	21	24.4
1939	30	24.4
1940	26	24
1941	27	24
1942	23	24
1943	22	24
1944	31	24
1945	22	24
1946	32	24
1947	9	24
1948	25	24
1949	23	24
1950	19	22.2
1951	19	22.2
1952	18	22.2
1953	28	22.2
1954	22	22.2
1955	26	22.2
1956	36	22.2
1957	24	22.2
1958	20	22.2
1959	10	22.2
1961	4	20.9
1963	16	20.9
1964	29	20.9
1965	25	20.9
1967	20	20.9
1968	18	20.9
1969	34	20.9
1970	20	20

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

First to last qualifying date each year at Isakapally
Year	First date	Last date
1901	1901-02-15	1901-12-11
1902	1902-06-01	1902-12-26
1903	1903-01-06	1903-12-31
1904	1904-01-01	1904-12-21
1905	1905-05-16	1905-11-23
1906	1906-01-17	1906-12-28
1907	1907-07-08	1907-12-18
1908	1908-01-17	1908-11-03
1909	1909-01-01	1909-10-29
1910	1910-06-18	1910-11-20
1911	1911-06-03	1911-12-04
1912	1912-06-20	1912-11-24
1913	1913-02-01	1913-12-08
1914	1914-04-02	1914-11-06
1915	1915-01-17	1915-11-25
1916	1916-05-30	1916-11-25
1917	1917-02-02	1917-12-12
1918	1918-01-12	1918-11-27
1919	1919-01-05	1919-12-19
1920	1920-01-23	1920-11-25
1921	1921-04-15	1921-11-03
1922	1922-01-10	1922-11-30
1923	1923-02-27	1923-11-15
1924	1924-01-06	1924-11-27
1925	1925-05-09	1925-12-28
1926	1926-01-25	1926-11-08
1927	1927-06-12	1927-11-14
1928	1928-02-05	1928-11-20
1929	1929-02-02	1929-12-25
1930	1930-05-08	1930-12-28
1931	1931-06-21	1931-12-26
1932	1932-02-23	1932-11-26
1933	1933-07-13	1933-12-18
1934	1934-04-19	1934-12-06
1935	1935-07-02	1935-12-25
1936	1936-02-07	1936-12-20
1937	1937-02-17	1937-11-18
1938	1938-06-01	1938-12-07
1939	1939-04-14	1939-12-31
1940	1940-05-20	1940-12-17
1941	1941-06-21	1941-12-16
1942	1942-07-16	1942-12-22
1943	1943-01-09	1943-12-21
1944	1944-02-02	1944-11-30
1945	1945-07-01	1945-11-19
1946	1946-05-07	1946-12-15
1947	1947-08-07	1947-12-14
1948	1948-01-01	1948-12-02
1949	1949-05-22	1949-11-17
1950	1950-05-27	1950-11-13
1951	1951-06-02	1951-11-20
1952	1952-05-21	1952-12-10
1953	1953-01-24	1953-11-27
1954	1954-06-26	1954-12-14
1955	1955-05-04	1955-12-04
1956	1956-01-29	1956-12-28
1957	1957-06-03	1957-11-07
1958	1958-08-13	1958-12-12
1959	1959-04-17	1959-12-10
1961	1961-07-31	1961-08-22
1963	1963-04-23	1963-12-07
1964	1964-06-17	1964-12-30
1965	1965-01-02	1965-12-10
1967	1967-03-19	1967-12-14
1968	1968-04-27	1968-12-19
1969	1969-05-16	1969-12-18
1970	1970-03-08	1970-11-07

Every Fixed Threshold

Fixed thresholds at Isakapally
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	67	36	1956	20
25 mm (0.98 in): Days with 25 mm or more rain	67	21	1925	10
50 mm (1.97 in): Days with 50 mm or more rain	63	11	1918	2
100 mm (3.94 in): Days with 100 mm or more rain	47	4	1902	1
200 mm (7.87 in): Days with 200 mm or more rain	14	1	1905	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 Isakapally 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).

Isakapally Threshold Days by Year (IN001160201)

Key Facts for Isakapally Thresholds

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

Every Fixed Threshold

Download the Data

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