Lake Raleigh Threshold Days by Year

6 fixed thresholds counted per year at Lake Raleigh (USC00314780): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lake Raleigh Thresholds

Lake Raleigh: days with 10 mm (0.39 in) or more of precipitation in 43 years, most in 1928 with 51.
Lake Raleigh: days with 25 mm (0.98 in) or more of precipitation in 43 years, most in 1936 with 22.
Lake Raleigh: days with 50 mm (1.97 in) or more of precipitation in 39 years, most in 1936 with 8.
Lake Raleigh: days with 100 mm (3.94 in) or more of precipitation in 11 years, most in 1929 with 1.
6 fixed thresholds have at least one qualifying day at Lake Raleigh.

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

43 years with a qualifying day

Days per year at Lake Raleigh with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 51 in 1928.

Days with 10 mm (0.39 in) or more of precipitation per year at Lake Raleigh
Year	Days	Decade average
1927	38	43.3
1928	51	43.3
1929	41	43.3
1936	47	42.3
1937	38	42.3
1938	39	42.3
1939	45	42.3
1940	32	38.4
1941	29	38.4
1942	44	38.4
1943	31	38.4
1944	35	38.4
1945	46	38.4
1946	40	38.4
1947	40	38.4
1948	41	38.4
1949	46	38.4
1950	35	39.2
1951	30	39.2
1952	40	39.2
1953	29	39.2
1954	36	39.2
1956	44	39.2
1957	44	39.2
1958	47	39.2
1959	48	39.2
1960	42	38.1
1961	35	38.1
1962	44	38.1
1963	38	38.1
1964	36	38.1
1965	35	38.1
1966	41	38.1
1967	39	38.1
1968	33	38.1
1969	38	38.1
1970	31	38
1971	35	38
1972	44	38
1973	34	38
1974	42	38
1975	43	38
1976	37	38

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

First to last qualifying date each year at Lake Raleigh
Year	First date	Last date
1927	1927-01-11	1927-12-16
1928	1928-02-08	1928-12-21
1929	1929-01-06	1929-12-23
1936	1936-01-03	1936-12-20
1937	1937-01-02	1937-12-24
1938	1938-01-07	1938-12-30
1939	1939-01-25	1939-12-27
1940	1940-01-12	1940-12-26
1941	1941-01-04	1941-12-24
1942	1942-01-04	1942-12-30
1943	1943-01-09	1943-12-29
1944	1944-01-03	1944-12-30
1945	1945-01-07	1945-12-31
1946	1946-01-17	1946-12-22
1947	1947-01-04	1947-12-16
1948	1948-01-14	1948-12-30
1949	1949-01-06	1949-12-14
1950	1950-01-18	1950-12-08
1951	1951-01-08	1951-12-21
1952	1952-01-10	1952-12-31
1953	1953-01-10	1953-12-14
1954	1954-01-12	1954-12-14
1956	1956-01-24	1956-12-24
1957	1957-01-30	1957-12-29
1958	1958-01-08	1958-12-29
1959	1959-01-02	1959-12-19
1960	1960-01-03	1960-12-12
1961	1961-01-01	1961-12-18
1962	1962-01-02	1962-12-30
1963	1963-01-14	1963-12-24
1964	1964-01-01	1964-12-27
1965	1965-02-07	1965-11-22
1966	1966-01-06	1966-12-29
1967	1967-02-07	1967-12-29
1968	1968-01-06	1968-12-23
1969	1969-01-20	1969-12-26
1970	1970-01-07	1970-12-21
1971	1971-01-05	1971-11-25
1972	1972-01-11	1972-12-22
1973	1973-01-04	1973-12-31
1974	1974-01-02	1974-12-28
1975	1975-01-04	1975-12-31
1976	1976-01-08	1976-12-26

Every Fixed Threshold

Fixed thresholds at Lake Raleigh
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	43	51	1928	37
25 mm (0.98 in): Days with 25 mm or more rain	43	22	1936	10
50 mm (1.97 in): Days with 50 mm or more rain	39	8	1936	2
100 mm (3.94 in): Days with 100 mm or more rain	11	1	1929	1
10 cm (3.9 in): Days with 10 cm or more snowfall	4	2	1940	1
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1927	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1927.

Download the Data

Data for Lake Raleigh 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

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

Lake Raleigh Threshold Days by Year

Key Facts for Lake Raleigh Thresholds

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

Every Fixed Threshold

Download the Data

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