Harapanahalli Threshold Days by Year (IN009031600)

4 fixed thresholds counted per year at Harapanahalli (IN009031600): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Harapanahalli Thresholds

Harapanahalli: days with 10 mm (0.39 in) or more of precipitation in 70 years, most in 1932 with 33.
Harapanahalli: days with 25 mm (0.98 in) or more of precipitation in 70 years, most in 1903 with 15.
Harapanahalli: days with 50 mm (1.97 in) or more of precipitation in 58 years, most in 1964 with 6.
Harapanahalli: days with 100 mm (3.94 in) or more of precipitation in 6 years, most in 1913 with 1.
4 fixed thresholds have at least one qualifying day at Harapanahalli.

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

70 years with a qualifying day

Days per year at Harapanahalli with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 33 in 1932.

Days with 10 mm (0.39 in) or more of precipitation per year at Harapanahalli
Year	Days	Decade average
1901	18	16.4
1902	23	16.4
1903	23	16.4
1904	15	16.4
1905	10	16.4
1906	14	16.4
1907	15	16.4
1908	14	16.4
1909	16	16.4
1910	26	19.5
1911	14	19.5
1912	25	19.5
1913	22	19.5
1914	15	19.5
1915	22	19.5
1916	22	19.5
1917	21	19.5
1918	10	19.5
1919	18	19.5
1920	17	16.8
1921	22	16.8
1922	8	16.8
1923	11	16.8
1924	16	16.8
1925	15	16.8
1926	19	16.8
1927	17	16.8
1928	26	16.8
1929	17	16.8
1930	13	18.7
1931	16	18.7
1932	33	18.7
1933	30	18.7
1934	14	18.7
1935	17	18.7
1936	24	18.7
1937	9	18.7
1938	13	18.7
1939	18	18.7
1940	27	18.7
1941	10	18.7
1942	16	18.7
1943	16	18.7
1944	27	18.7
1945	13	18.7
1946	26	18.7
1947	23	18.7
1948	18	18.7
1949	11	18.7
1950	19	22.3
1951	24	22.3
1952	21	22.3
1953	26	22.3
1954	14	22.3
1955	26	22.3
1956	31	22.3
1957	24	22.3
1958	25	22.3
1959	13	22.3
1960	22	22.5
1961	30	22.5
1962	29	22.5
1963	26	22.5
1964	23	22.5
1965	16	22.5
1966	24	22.5
1967	18	22.5
1968	16	22.5
1969	21	22.5
1970	26	26

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

First to last qualifying date each year at Harapanahalli
Year	First date	Last date
1901	1901-02-20	1901-10-07
1902	1902-05-02	1902-12-13
1903	1903-04-26	1903-12-01
1904	1904-05-24	1904-10-20
1905	1905-05-03	1905-10-19
1906	1906-05-07	1906-12-29
1907	1907-04-26	1907-12-20
1908	1908-05-04	1908-09-27
1909	1909-04-29	1909-10-11
1910	1910-05-04	1910-10-26
1911	1911-05-06	1911-10-14
1912	1912-05-28	1912-11-23
1913	1913-04-21	1913-10-14
1914	1914-05-04	1914-12-13
1915	1915-04-29	1915-12-27
1916	1916-05-05	1916-11-24
1917	1917-02-02	1917-11-21
1918	1918-04-22	1918-11-30
1919	1919-05-06	1919-11-15
1920	1920-03-24	1920-10-30
1921	1921-03-10	1921-11-06
1922	1922-04-24	1922-11-25
1923	1923-05-18	1923-09-16
1924	1924-01-05	1924-11-03
1925	1925-04-21	1925-12-11
1926	1926-05-12	1926-10-11
1927	1927-05-20	1927-11-14
1928	1928-02-03	1928-10-26
1929	1929-02-07	1929-11-15
1930	1930-05-25	1930-10-27
1931	1931-05-27	1931-11-13
1932	1932-05-03	1932-11-07
1933	1933-04-12	1933-12-24
1934	1934-04-10	1934-11-01
1935	1935-06-08	1935-11-01
1936	1936-03-21	1936-11-14
1937	1937-04-17	1937-10-09
1938	1938-03-25	1938-09-30
1939	1939-04-16	1939-11-19
1940	1940-04-22	1940-10-17
1941	1941-05-10	1941-12-04
1942	1942-05-06	1942-12-22
1943	1943-01-05	1943-11-02
1944	1944-02-22	1944-11-17
1945	1945-04-13	1945-11-12
1946	1946-04-06	1946-11-17
1947	1947-05-19	1947-10-18
1948	1948-03-08	1948-11-20
1949	1949-05-10	1949-11-18
1950	1950-05-12	1950-11-02
1951	1951-04-12	1951-10-29
1952	1952-02-08	1952-12-10
1953	1953-04-17	1953-10-30
1954	1954-04-05	1954-10-19
1955	1955-04-22	1955-10-27
1956	1956-04-06	1956-11-06
1957	1957-04-01	1957-11-13
1958	1958-04-13	1958-11-22
1959	1959-05-26	1959-11-08
1960	1960-03-15	1960-10-27
1961	1961-04-02	1961-10-27
1962	1962-04-14	1962-12-07
1963	1963-03-28	1963-10-24
1964	1964-04-27	1964-11-13
1965	1965-04-06	1965-12-10
1966	1966-04-11	1966-11-30
1967	1967-04-03	1967-10-07
1968	1968-05-02	1968-11-07
1969	1969-04-10	1969-10-28
1970	1970-04-06	1970-10-22

Every Fixed Threshold

Fixed thresholds at Harapanahalli
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	70	33	1932	26
25 mm (0.98 in): Days with 25 mm or more rain	70	15	1903	15
50 mm (1.97 in): Days with 50 mm or more rain	58	6	1964	4
100 mm (3.94 in): Days with 100 mm or more rain	6	1	1913	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 Harapanahalli 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).

Harapanahalli Threshold Days by Year (IN009031600)

Key Facts for Harapanahalli Thresholds

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

Every Fixed Threshold

Download the Data

Related