Ridgley Threshold Days by Year

4 fixed thresholds counted per year at Ridgley (ASN00091085): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ridgley Thresholds

Ridgley: days with 10 mm (0.39 in) or more of precipitation in 82 years, most in 1956 with 67.
Ridgley: days with 25 mm (0.98 in) or more of precipitation in 82 years, most in 1956 with 24.
Ridgley: days with 50 mm (1.97 in) or more of precipitation in 57 years, most in 1956 with 8.
Ridgley: days with 100 mm (3.94 in) or more of precipitation in 5 years, most in 1929 with 1.
4 fixed thresholds have at least one qualifying day at Ridgley.

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

82 years with a qualifying day

Days per year at Ridgley with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 67 in 1956.

Days with 10 mm (0.39 in) or more of precipitation per year at Ridgley
Year	Days	Decade average
1910	59	41.1
1911	38	41.1
1912	48	41.1
1913	32	41.1
1914	25	41.1
1915	48	41.1
1916	50	41.1
1917	50	41.1
1918	38	41.1
1919	23	41.1
1920	43	43.9
1921	30	43.9
1922	40	43.9
1923	62	43.9
1924	52	43.9
1925	28	43.9
1926	43	43.9
1927	39	43.9
1928	50	43.9
1929	52	43.9
1930	43	40.3
1931	45	40.3
1932	43	40.3
1933	29	40.3
1934	41	40.3
1935	35	40.3
1936	45	40.3
1937	35	40.3
1938	40	40.3
1939	47	40.3
1940	28	38.9
1941	34	38.9
1942	49	38.9
1943	34	38.9
1944	32	38.9
1945	33	38.9
1946	48	38.9
1947	56	38.9
1948	41	38.9
1949	34	38.9
1950	36	48.3
1951	44	48.3
1952	53	48.3
1953	50	48.3
1954	37	48.3
1955	62	48.3
1956	67	48.3
1957	34	48.3
1958	52	48.3
1962	42	40.3
1963	37	40.3
1964	56	40.3
1965	31	40.3
1966	34	40.3
1967	29	40.3
1968	54	40.3
1969	39	40.3
1970	48	49.9
1971	60	49.9
1972	30	49.9
1973	57	49.9
1974	58	49.9
1975	66	49.9
1976	44	49.9
1977	34	49.9
1978	52	49.9
1979	50	49.9
1980	44	38
1981	52	38
1982	29	38
1983	33	38
1984	47	38
1985	36	38
1986	34	38
1987	29	38
1990	35	36.1
1991	45	36.1
1993	29	36.1
1994	28	36.1
1995	39	36.1
1996	49	36.1
1997	28	36.1

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

First to last qualifying date each year at Ridgley
Year	First date	Last date
1910	1910-01-10	1910-12-22
1911	1911-02-05	1911-12-26
1912	1912-03-10	1912-12-23
1913	1913-01-03	1913-12-26
1914	1914-01-12	1914-12-27
1915	1915-01-07	1915-11-15
1916	1916-01-04	1916-12-21
1917	1917-01-09	1917-11-30
1918	1918-01-15	1918-12-03
1919	1919-02-19	1919-10-21
1920	1920-03-21	1920-12-16
1921	1921-01-02	1921-11-27
1922	1922-01-11	1922-12-28
1923	1923-01-05	1923-12-15
1924	1924-01-06	1924-11-26
1925	1925-01-13	1925-12-03
1926	1926-02-09	1926-12-17
1927	1927-01-06	1927-12-28
1928	1928-01-01	1928-12-15
1929	1929-01-17	1929-12-29
1930	1930-02-20	1930-12-26
1931	1931-02-14	1931-11-18
1932	1932-01-12	1932-12-07
1933	1933-01-26	1933-12-04
1934	1934-03-14	1934-12-31
1935	1935-02-11	1935-12-21
1936	1936-01-21	1936-12-04
1937	1937-01-01	1937-12-26
1938	1938-01-02	1938-12-11
1939	1939-02-17	1939-12-23
1940	1940-01-06	1940-12-28
1941	1941-01-21	1941-12-08
1942	1942-01-20	1942-12-24
1943	1943-01-12	1943-11-30
1944	1944-01-02	1944-12-21
1945	1945-01-15	1945-11-17
1946	1946-01-04	1946-12-29
1947	1947-01-29	1947-12-25
1948	1948-01-06	1948-12-28
1949	1949-02-22	1949-11-21
1950	1950-01-14	1950-12-08
1951	1951-01-07	1951-12-19
1952	1952-01-07	1952-12-26
1953	1953-01-05	1953-12-27
1954	1954-02-01	1954-12-12
1955	1955-01-29	1955-12-31
1956	1956-01-18	1956-12-29
1957	1957-01-23	1957-12-26
1958	1958-01-31	1958-12-25
1962	1962-01-17	1962-12-11
1963	1963-01-06	1963-12-07
1964	1964-02-07	1964-12-06
1965	1965-03-09	1965-12-08
1966	1966-02-14	1966-12-29
1967	1967-01-13	1967-12-31
1968	1968-01-21	1968-12-24
1969	1969-01-15	1969-12-13
1970	1970-01-03	1970-12-31
1971	1971-01-01	1971-12-31
1972	1972-01-09	1972-11-11
1973	1973-01-13	1973-12-31
1974	1974-01-04	1974-12-29
1975	1975-01-09	1975-12-30
1976	1976-01-09	1976-12-27
1977	1977-01-15	1977-12-26
1978	1978-01-07	1978-12-26
1979	1979-01-17	1979-11-15
1980	1980-02-21	1980-12-03
1981	1981-01-09	1981-12-03
1982	1982-01-01	1982-12-08
1983	1983-01-04	1983-11-09
1984	1984-01-02	1984-12-25
1985	1985-01-31	1985-12-22
1986	1986-01-13	1986-12-31
1987	1987-01-14	1987-12-10
1990	1990-02-01	1990-12-28
1991	1991-01-04	1991-11-26
1993	1993-01-17	1993-12-23
1994	1994-01-05	1994-12-20
1995	1995-01-21	1995-12-19
1996	1996-01-01	1996-12-07
1997	1997-01-16	1997-12-02

Every Fixed Threshold

Fixed thresholds at Ridgley
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	82	67	1956	28
25 mm (0.98 in): Days with 25 mm or more rain	82	24	1956	7
50 mm (1.97 in): Days with 50 mm or more rain	57	8	1956	2
100 mm (3.94 in): Days with 100 mm or more rain	5	1	1929	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1910.

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Data for Ridgley 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

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

Ridgley Threshold Days by Year

Key Facts for Ridgley Thresholds

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

Every Fixed Threshold

Download the Data

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