Mount Pleasant Threshold Days by Year

4 fixed thresholds counted per year at Mount Pleasant (ASN00023737): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mount Pleasant Thresholds

Mount Pleasant: days with 10 mm (0.39 in) or more of precipitation in 99 years, most in 1923 with 40.
Mount Pleasant: days with 25 mm (0.98 in) or more of precipitation in 93 years, most in 1917 with 9.
Mount Pleasant: days with 50 mm (1.97 in) or more of precipitation in 24 years, most in 1898 with 3.
Mount Pleasant: days with 100 mm (3.94 in) or more of precipitation in 3 years, most in 1941 with 1.
4 fixed thresholds have at least one qualifying day at Mount Pleasant.

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

99 years with a qualifying day

Days per year at Mount Pleasant with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 40 in 1923.

Days with 10 mm (0.39 in) or more of precipitation per year at Mount Pleasant
Year	Days	Decade average
1884	21	20.5
1885	19	20.5
1886	21	20.5
1887	24	20.5
1888	16	20.5
1889	22	20.5
1890	30	20.1
1891	15	20.1
1892	19	20.1
1893	27	20.1
1894	21	20.1
1895	16	20.1
1896	16	20.1
1897	17	20.1
1898	25	20.1
1899	15	20.1
1900	17	17.3
1901	16	17.3
1902	14	17.3
1903	23	17.3
1904	15	17.3
1905	19	17.3
1906	17	17.3
1907	13	17.3
1908	22	17.3
1910	20	20.1
1911	14	20.1
1912	20	20.1
1913	20	20.1
1914	11	20.1
1915	27	20.1
1916	21	20.1
1917	37	20.1
1918	15	20.1
1919	16	20.1
1920	26	23.5
1921	25	23.5
1922	27	23.5
1923	40	23.5
1924	17	23.5
1925	16	23.5
1926	24	23.5
1927	23	23.5
1928	20	23.5
1929	17	23.5
1930	20	18.4
1931	22	18.4
1932	21	18.4
1933	22	18.4
1934	11	18.4
1935	23	18.4
1936	12	18.4
1937	18	18.4
1938	15	18.4
1939	20	18.4
1940	14	17
1941	20	17
1942	23	17
1943	17	17
1944	12	17
1945	15	17
1946	18	17
1947	25	17
1948	15	17
1949	11	17
1950	13	17.8
1951	21	17.8
1952	22	17.8
1953	24	17.8
1954	12	17.8
1955	24	17.8
1956	28	17.8
1957	8	17.8
1958	20	17.8
1959	6	17.8
1960	19	16.1
1961	11	16.1
1962	18	16.1
1963	16	16.1
1964	20	16.1
1965	12	16.1
1966	19	16.1
1967	7	16.1
1968	25	16.1
1969	14	16.1
1970	14	16.8
1971	19	16.8
1972	12	16.8
1973	22	16.8
1989	14	14
1997	17	17
2000	19	15.7
2003	18	15.7
2005	20	15.7
2006	11	15.7
2007	15	15.7
2008	11	15.7
2024	10	11.5
2025	13	11.5

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

First to last qualifying date each year at Mount Pleasant
Year	First date	Last date
1884	1884-03-28	1884-12-15
1885	1885-02-28	1885-12-23
1886	1886-01-06	1886-11-25
1887	1887-04-10	1887-11-29
1888	1888-05-03	1888-09-24
1889	1889-04-02	1889-11-15
1890	1890-01-22	1890-11-14
1891	1891-03-29	1891-12-13
1892	1892-01-23	1892-12-11
1893	1893-04-01	1893-11-20
1894	1894-03-17	1894-12-27
1895	1895-01-04	1895-10-13
1896	1896-01-18	1896-12-28
1897	1897-02-16	1897-09-29
1898	1898-02-26	1898-11-25
1899	1899-01-19	1899-11-07
1900	1900-03-15	1900-11-17
1901	1901-04-03	1901-12-31
1902	1902-03-26	1902-12-17
1903	1903-02-15	1903-11-29
1904	1904-01-03	1904-11-02
1905	1905-01-03	1905-10-28
1906	1906-03-27	1906-10-03
1907	1907-02-06	1907-11-23
1908	1908-03-05	1908-12-12
1910	1910-03-05	1910-12-23
1911	1911-02-04	1911-12-05
1912	1912-03-09	1912-11-18
1913	1913-02-14	1913-12-23
1914	1914-01-26	1914-12-15
1915	1915-01-20	1915-11-15
1916	1916-01-04	1916-11-25
1917	1917-02-14	1917-12-18
1918	1918-05-10	1918-10-12
1919	1919-02-16	1919-12-27
1920	1920-01-16	1920-12-27
1921	1921-01-02	1921-12-03
1922	1922-01-05	1922-12-26
1923	1923-05-08	1923-12-14
1924	1924-03-05	1924-11-07
1925	1925-01-13	1925-11-20
1926	1926-02-25	1926-11-04
1927	1927-01-05	1927-12-02
1928	1928-01-27	1928-10-15
1929	1929-05-07	1929-12-28
1930	1930-02-21	1930-10-24
1931	1931-03-13	1931-09-14
1932	1932-02-05	1932-10-12
1933	1933-01-20	1933-11-29
1934	1934-01-06	1934-11-08
1935	1935-03-21	1935-11-11
1936	1936-01-07	1936-10-29
1937	1937-01-19	1937-12-11
1938	1938-02-20	1938-11-27
1939	1939-01-16	1939-11-04
1940	1940-01-05	1940-12-19
1941	1941-01-24	1941-11-19
1942	1942-01-20	1942-12-05
1943	1943-02-17	1943-12-17
1944	1944-04-02	1944-11-07
1945	1945-01-31	1945-12-17
1946	1946-01-17	1946-12-27
1947	1947-02-09	1947-12-25
1948	1948-04-11	1948-12-25
1949	1949-02-20	1949-10-15
1950	1950-02-01	1950-10-05
1951	1951-02-20	1951-11-09
1952	1952-01-24	1952-11-27
1953	1953-02-05	1953-11-04
1954	1954-01-26	1954-12-24
1955	1955-02-08	1955-12-03
1956	1956-03-31	1956-11-16
1957	1957-04-10	1957-11-07
1958	1958-03-06	1958-10-18
1959	1959-02-16	1959-10-29
1960	1960-02-02	1960-11-12
1961	1961-02-08	1961-12-14
1962	1962-02-20	1962-12-29
1963	1963-04-26	1963-09-16
1964	1964-02-06	1964-12-22
1965	1965-05-08	1965-11-25
1966	1966-01-12	1966-12-01
1967	1967-05-19	1967-10-03
1968	1968-01-20	1968-12-03
1969	1969-02-09	1969-12-02
1970	1970-04-10	1970-12-11
1971	1971-02-20	1971-12-10
1972	1972-01-10	1972-12-27
1973	1973-02-05	1973-12-31
1989	1989-05-08	1989-08-31
1997	1997-01-15	1997-12-18
2000	2000-02-22	2000-11-11
2003	2003-02-20	2003-10-31
2005	2005-01-04	2005-12-16
2006	2006-01-02	2006-12-22
2007	2007-01-19	2007-12-22
2008	2008-04-03	2008-12-15
2024	2024-06-14	2024-11-27
2025	2025-04-22	2025-12-01

Every Fixed Threshold

Fixed thresholds at Mount Pleasant
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	99	40	1923	13
25 mm (0.98 in): Days with 25 mm or more rain	93	9	1917	4
50 mm (1.97 in): Days with 50 mm or more rain	24	3	1898	2
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1941	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1884.

Download the Data

Data for Mount Pleasant 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Mount Pleasant Threshold Days by Year

Key Facts for Mount Pleasant Thresholds

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

Every Fixed Threshold

Download the Data

Related