Hewitt Threshold Days by Year (USC00414122)

5 fixed thresholds counted per year at Hewitt (USC00414122): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hewitt Thresholds

Hewitt: days with 10 mm (0.39 in) or more of precipitation in 113 years, most in 1882 with 44.
Hewitt: days with 25 mm (0.98 in) or more of precipitation in 113 years, most in 1888 with 19.
Hewitt: days with 50 mm (1.97 in) or more of precipitation in 101 years, most in 1957 with 9.
Hewitt: days with 100 mm (3.94 in) or more of precipitation in 30 years, most in 1885 with 2.
5 fixed thresholds have at least one qualifying day at Hewitt.

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

113 years with a qualifying day

Days per year at Hewitt with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 44 in 1882.

Days with 10 mm (0.39 in) or more of precipitation per year at Hewitt
Year	Days	Decade average
1880	30	29.6
1881	18	29.6
1882	44	29.6
1883	19	29.6
1884	29	29.6
1885	34	29.6
1886	26	29.6
1887	19	29.6
1888	43	29.6
1889	34	29.6
1890	31	28.5
1898	26	28.5
1901	14	26.2
1902	33	26.2
1903	28	26.2
1904	26	26.2
1905	37	26.2
1906	23	26.2
1907	30	26.2
1908	25	26.2
1909	20	26.2
1910	18	24.1
1911	24	24.1
1912	22	24.1
1913	28	24.1
1914	26	24.1
1915	22	24.1
1916	21	24.1
1917	16	24.1
1918	26	24.1
1919	38	24.1
1920	26	24.8
1921	23	24.8
1922	21	24.8
1923	30	24.8
1924	17	24.8
1925	21	24.8
1926	37	24.8
1927	29	24.8
1928	22	24.8
1929	22	24.8
1930	26	24.7
1931	22	24.7
1932	29	24.7
1933	19	24.7
1934	19	24.7
1935	34	24.7
1936	22	24.7
1937	26	24.7
1938	25	24.7
1939	25	24.7
1940	29	25.8
1941	29	25.8
1942	33	25.8
1943	22	25.8
1944	33	25.8
1945	26	25.8
1946	32	25.8
1947	18	25.8
1948	9	25.8
1949	27	25.8
1950	18	22.9
1951	21	22.9
1952	19	22.9
1953	26	22.9
1954	11	22.9
1955	25	22.9
1956	15	22.9
1957	39	22.9
1958	26	22.9
1959	29	22.9
1960	25	26.6
1961	36	26.6
1962	23	26.6
1964	25	26.6
1965	28	26.6
1966	23	26.6
1967	23	26.6
1968	34	26.6
1969	22	26.6
1970	28	26.3
1971	20	26.3
1972	25	26.3
1973	36	26.3
1974	26	26.3
1975	21	26.3
1976	29	26.3
1977	21	26.3
1978	20	26.3
1979	37	26.3
1980	22	26.9
1981	29	26.9
1982	24	26.9
1983	25	26.9
1984	34	26.9
1985	30	26.9
1986	30	26.9
1987	25	26.9
1988	19	26.9
1989	31	26.9
1990	29	29.2
1991	35	29.2
1992	33	29.2
1993	26	29.2
1994	28	29.2
1995	26	29.2
1996	32	29.2
1997	33	29.2
1998	31	29.2
1999	19	29.2
2000	35	31.3
2001	28	31.3
2002	31	31.3

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

First to last qualifying date each year at Hewitt
Year	First date	Last date
1880	1880-01-02	1880-12-18
1881	1881-02-06	1881-12-19
1882	1882-01-05	1882-12-31
1883	1883-02-12	1883-12-13
1884	1884-01-14	1884-12-28
1885	1885-01-04	1885-12-29
1886	1886-01-02	1886-11-11
1887	1887-02-13	1887-12-24
1888	1888-01-12	1888-12-30
1889	1889-01-14	1889-11-26
1890	1890-01-01	1890-11-16
1898	1898-01-18	1898-12-18
1901	1901-02-07	1901-12-08
1902	1902-03-11	1902-12-02
1903	1903-01-01	1903-10-31
1904	1904-02-05	1904-10-26
1905	1905-02-07	1905-12-30
1906	1906-01-21	1906-12-16
1907	1907-01-03	1907-12-21
1908	1908-02-08	1908-12-28
1909	1909-02-14	1909-12-24
1910	1910-01-13	1910-12-29
1911	1911-02-19	1911-12-19
1912	1912-02-13	1912-12-23
1913	1913-01-22	1913-12-13
1914	1914-02-12	1914-12-28
1915	1915-01-10	1915-12-06
1916	1916-01-21	1916-11-22
1917	1917-04-01	1917-11-28
1918	1918-01-11	1918-12-23
1919	1919-01-15	1919-11-28
1920	1920-01-05	1920-12-21
1921	1921-01-12	1921-12-07
1922	1922-01-10	1922-11-17
1923	1923-01-31	1923-12-18
1924	1924-01-23	1924-11-20
1925	1925-01-10	1925-11-06
1926	1926-01-01	1926-12-25
1927	1927-01-13	1927-12-28
1928	1928-02-12	1928-12-16
1929	1929-01-04	1929-11-09
1930	1930-02-01	1930-12-04
1931	1931-01-04	1931-12-19
1932	1932-01-03	1932-12-29
1933	1933-01-07	1933-12-30
1934	1934-01-03	1934-11-29
1935	1935-01-07	1935-12-06
1936	1936-04-21	1936-12-27
1937	1937-01-11	1937-12-29
1938	1938-01-23	1938-12-25
1939	1939-01-08	1939-12-22
1940	1940-01-06	1940-12-26
1941	1941-01-13	1941-12-11
1942	1942-02-16	1942-12-21
1943	1943-01-06	1943-12-24
1944	1944-01-01	1944-12-31
1945	1945-01-17	1945-12-02
1946	1946-01-14	1946-12-11
1947	1947-01-08	1947-12-15
1948	1948-02-27	1948-12-17
1949	1949-01-26	1949-12-14
1950	1950-02-09	1950-12-21
1951	1951-01-13	1951-11-26
1952	1952-02-25	1952-12-30
1953	1953-01-16	1953-12-19
1954	1954-04-09	1954-11-14
1955	1955-01-18	1955-12-01
1956	1956-01-17	1956-12-19
1957	1957-01-04	1957-11-24
1958	1958-01-12	1958-12-30
1959	1959-02-12	1959-12-31
1960	1960-01-05	1960-12-31
1961	1961-01-06	1961-12-16
1962	1962-02-15	1962-12-20
1964	1964-01-16	1964-12-10
1965	1965-01-22	1965-12-19
1966	1966-01-21	1966-09-28
1967	1967-03-20	1967-12-31
1968	1968-01-09	1968-12-01
1969	1969-02-14	1969-12-06
1970	1970-01-05	1970-12-30
1971	1971-02-26	1971-12-10
1972	1972-01-01	1972-12-15
1973	1973-01-02	1973-12-19
1974	1974-01-19	1974-12-11
1975	1975-01-12	1975-12-25
1976	1976-02-18	1976-12-11
1977	1977-01-31	1977-11-08
1978	1978-01-12	1978-12-31
1979	1979-01-05	1979-12-29
1980	1980-01-22	1980-12-09
1981	1981-01-20	1981-12-14
1982	1982-01-13	1982-12-27
1983	1983-02-05	1983-12-16
1984	1984-01-10	1984-12-31
1985	1985-02-23	1985-12-11
1986	1986-02-04	1986-12-23
1987	1987-01-18	1987-12-26
1988	1988-01-06	1988-12-11
1989	1989-01-20	1989-10-30
1990	1990-01-19	1990-12-27
1991	1991-01-03	1991-12-27
1992	1992-01-02	1992-12-15
1993	1993-01-04	1993-12-22
1994	1994-02-10	1994-12-29
1995	1995-01-13	1995-12-18
1996	1996-01-01	1996-12-16
1997	1997-01-07	1997-12-24
1998	1998-01-06	1998-12-19
1999	1999-01-22	1999-12-12
2000	2000-01-07	2000-12-27
2001	2001-01-11	2001-12-16
2002	2002-02-05	2002-12-31

Every Fixed Threshold

Fixed thresholds at Hewitt
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	113	44	1882	31
25 mm (0.98 in): Days with 25 mm or more rain	113	19	1888	17
50 mm (1.97 in): Days with 50 mm or more rain	101	9	1957	2
100 mm (3.94 in): Days with 100 mm or more rain	30	2	1885	1
10 cm (3.9 in): Days with 10 cm or more snowfall	10	1	1898	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1880.

Download the Data

Data for Hewitt 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).

Hewitt Threshold Days by Year (USC00414122)

Key Facts for Hewitt Thresholds

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

Every Fixed Threshold

Download the Data

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