Alattur Threshold Days by Year (IN010070900)
4 fixed thresholds counted per year at Alattur (IN010070900): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Alattur Thresholds
- Alattur: days with 10 mm (0.39 in) or more of precipitation in 63 years, most in 1961 with 96.
- Alattur: days with 25 mm (0.98 in) or more of precipitation in 63 years, most in 1933 with 60.
- Alattur: days with 50 mm (1.97 in) or more of precipitation in 63 years, most in 1924 with 26.
- Alattur: days with 100 mm (3.94 in) or more of precipitation in 28 years, most in 1924 with 4.
- 4 fixed thresholds have at least one qualifying day at Alattur.
Days with 10 mm (0.39 in) or more of precipitation
63 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1907 | 69 | 65.3 |
| 1908 | 60 | 65.3 |
| 1909 | 67 | 65.3 |
| 1910 | 58 | 63 |
| 1911 | 53 | 63 |
| 1912 | 68 | 63 |
| 1913 | 49 | 63 |
| 1914 | 69 | 63 |
| 1915 | 69 | 63 |
| 1916 | 72 | 63 |
| 1917 | 62 | 63 |
| 1918 | 66 | 63 |
| 1919 | 64 | 63 |
| 1920 | 67 | 66.7 |
| 1921 | 65 | 66.7 |
| 1922 | 72 | 66.7 |
| 1923 | 73 | 66.7 |
| 1924 | 81 | 66.7 |
| 1925 | 56 | 66.7 |
| 1926 | 60 | 66.7 |
| 1927 | 63 | 66.7 |
| 1928 | 49 | 66.7 |
| 1929 | 81 | 66.7 |
| 1930 | 76 | 67.9 |
| 1931 | 66 | 67.9 |
| 1932 | 83 | 67.9 |
| 1933 | 87 | 67.9 |
| 1934 | 52 | 67.9 |
| 1935 | 53 | 67.9 |
| 1936 | 69 | 67.9 |
| 1937 | 67 | 67.9 |
| 1938 | 59 | 67.9 |
| 1939 | 67 | 67.9 |
| 1940 | 65 | 67.6 |
| 1941 | 49 | 67.6 |
| 1942 | 78 | 67.6 |
| 1943 | 92 | 67.6 |
| 1944 | 58 | 67.6 |
| 1945 | 48 | 67.6 |
| 1946 | 78 | 67.6 |
| 1947 | 64 | 67.6 |
| 1948 | 77 | 67.6 |
| 1949 | 67 | 67.6 |
| 1950 | 69 | 60 |
| 1951 | 53 | 60 |
| 1952 | 43 | 60 |
| 1953 | 58 | 60 |
| 1954 | 53 | 60 |
| 1955 | 52 | 60 |
| 1956 | 68 | 60 |
| 1957 | 54 | 60 |
| 1958 | 64 | 60 |
| 1959 | 86 | 60 |
| 1960 | 83 | 71.3 |
| 1961 | 96 | 71.3 |
| 1962 | 79 | 71.3 |
| 1963 | 69 | 71.3 |
| 1965 | 51 | 71.3 |
| 1966 | 66 | 71.3 |
| 1967 | 60 | 71.3 |
| 1968 | 76 | 71.3 |
| 1969 | 62 | 71.3 |
| 1970 | 68 | 68 |
| Year | First date | Last date |
|---|---|---|
| 1907 | 1907-01-10 | 1907-12-14 |
| 1908 | 1908-03-28 | 1908-11-02 |
| 1909 | 1909-01-01 | 1909-11-25 |
| 1910 | 1910-04-10 | 1910-11-24 |
| 1911 | 1911-05-15 | 1911-12-06 |
| 1912 | 1912-04-21 | 1912-11-22 |
| 1913 | 1913-03-06 | 1913-11-07 |
| 1914 | 1914-05-02 | 1914-12-12 |
| 1915 | 1915-01-19 | 1915-11-28 |
| 1916 | 1916-02-20 | 1916-11-15 |
| 1917 | 1917-03-25 | 1917-12-12 |
| 1918 | 1918-03-22 | 1918-11-28 |
| 1919 | 1919-01-26 | 1919-11-30 |
| 1920 | 1920-04-11 | 1920-11-24 |
| 1921 | 1921-01-24 | 1921-11-19 |
| 1922 | 1922-01-02 | 1922-11-12 |
| 1923 | 1923-03-21 | 1923-11-07 |
| 1924 | 1924-03-23 | 1924-11-28 |
| 1925 | 1925-03-15 | 1925-12-12 |
| 1926 | 1926-04-07 | 1926-11-04 |
| 1927 | 1927-04-29 | 1927-11-10 |
| 1928 | 1928-02-04 | 1928-11-21 |
| 1929 | 1929-02-10 | 1929-12-02 |
| 1930 | 1930-02-14 | 1930-12-29 |
| 1931 | 1931-05-23 | 1931-12-25 |
| 1932 | 1932-03-29 | 1932-11-28 |
| 1933 | 1933-03-28 | 1933-11-10 |
| 1934 | 1934-01-26 | 1934-11-02 |
| 1935 | 1935-04-02 | 1935-11-17 |
| 1936 | 1936-03-18 | 1936-11-14 |
| 1937 | 1937-03-07 | 1937-12-24 |
| 1938 | 1938-02-04 | 1938-11-19 |
| 1939 | 1939-03-19 | 1939-12-12 |
| 1940 | 1940-04-09 | 1940-11-26 |
| 1941 | 1941-05-26 | 1941-12-17 |
| 1942 | 1942-04-25 | 1942-12-21 |
| 1943 | 1943-01-03 | 1943-11-17 |
| 1944 | 1944-02-22 | 1944-11-11 |
| 1945 | 1945-04-21 | 1945-11-15 |
| 1946 | 1946-03-27 | 1946-12-09 |
| 1947 | 1947-03-31 | 1947-12-16 |
| 1948 | 1948-01-18 | 1948-11-24 |
| 1949 | 1949-04-02 | 1949-11-18 |
| 1950 | 1950-02-20 | 1950-11-14 |
| 1951 | 1951-04-11 | 1951-11-22 |
| 1952 | 1952-02-20 | 1952-12-01 |
| 1953 | 1953-02-22 | 1953-11-13 |
| 1954 | 1954-03-16 | 1954-12-13 |
| 1955 | 1955-04-13 | 1955-12-01 |
| 1956 | 1956-04-04 | 1956-11-23 |
| 1957 | 1957-03-09 | 1957-11-15 |
| 1958 | 1958-02-04 | 1958-11-25 |
| 1959 | 1959-04-05 | 1959-12-02 |
| 1960 | 1960-03-03 | 1960-12-04 |
| 1961 | 1961-02-16 | 1961-12-05 |
| 1962 | 1962-01-27 | 1962-12-06 |
| 1963 | 1963-02-25 | 1963-12-08 |
| 1965 | 1965-04-16 | 1965-12-09 |
| 1966 | 1966-03-14 | 1966-11-26 |
| 1967 | 1967-03-13 | 1967-11-05 |
| 1968 | 1968-02-22 | 1968-11-01 |
| 1969 | 1969-05-13 | 1969-12-15 |
| 1970 | 1970-04-08 | 1970-11-05 |
Every Fixed Threshold
| 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 | 63 | 96 | 1961 | 68 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 63 | 60 | 1933 | 28 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 63 | 26 | 1924 | 7 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 28 | 4 | 1924 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1907.
Download the Data
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 . Last revised (2025-12-31).