Longvale Threshold Days by Year (SF000366050)

5 fixed thresholds counted per year at Longvale (SF000366050): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Longvale Thresholds

Longvale: days with 10 mm (0.39 in) or more of precipitation in 56 years, most in 1974 with 33.
Longvale: days with 25 mm (0.98 in) or more of precipitation in 55 years, most in 1974 with 12.
Longvale: days with 50 mm (1.97 in) or more of precipitation in 37 years, most in 1974 with 7.
Longvale: days with 100 mm (3.94 in) or more of precipitation in 5 years, most in 1952 with 1.
5 fixed thresholds have at least one qualifying day at Longvale.

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

56 years with a qualifying day

Days per year at Longvale with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 33 in 1974.

Days with 10 mm (0.39 in) or more of precipitation per year at Longvale
Year	Days	Decade average
1921	18	13.7
1922	19	13.7
1923	14	13.7
1924	11	13.7
1925	18	13.7
1926	6	13.7
1927	4	13.7
1928	18	13.7
1929	15	13.7
1930	15	18.1
1931	14	18.1
1932	19	18.1
1933	10	18.1
1934	24	18.1
1935	25	18.1
1936	18	18.1
1937	9	18.1
1938	20	18.1
1939	27	18.1
1940	18	15.4
1941	15	15.4
1942	16	15.4
1943	16	15.4
1944	18	15.4
1945	13	15.4
1946	13	15.4
1947	16	15.4
1948	19	15.4
1949	10	15.4
1950	17	16.6
1951	19	16.6
1952	17	16.6
1953	16	16.6
1954	18	16.6
1955	17	16.6
1956	17	16.6
1957	11	16.6
1958	13	16.6
1959	21	16.6
1960	11	14.3
1961	14	14.3
1962	11	14.3
1963	25	14.3
1964	14	14.3
1965	15	14.3
1966	9	14.3
1967	17	14.3
1968	16	14.3
1969	11	14.3
1970	13	20.1
1971	21	20.1
1972	14	20.1
1973	18	20.1
1974	33	20.1
1975	17	20.1
1976	25	20.1

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

First to last qualifying date each year at Longvale
Year	First date	Last date
1921	1921-02-02	1921-12-29
1922	1922-01-08	1922-12-20
1923	1923-01-28	1923-12-17
1924	1924-01-09	1924-12-18
1925	1925-01-21	1925-12-28
1926	1926-03-15	1926-11-13
1927	1927-05-12	1927-12-04
1928	1928-01-27	1928-12-21
1929	1929-06-03	1929-12-10
1930	1930-02-02	1930-11-13
1931	1931-01-01	1931-12-31
1932	1932-01-01	1932-12-19
1933	1933-02-22	1933-11-22
1934	1934-01-03	1934-11-19
1935	1935-01-03	1935-12-16
1936	1936-01-17	1936-12-05
1937	1937-03-05	1937-12-21
1938	1938-01-21	1938-12-10
1939	1939-01-21	1939-12-04
1940	1940-01-22	1940-11-11
1941	1941-02-01	1941-12-23
1942	1942-01-28	1942-12-12
1943	1943-01-13	1943-12-14
1944	1944-01-14	1944-11-28
1945	1945-02-01	1945-12-22
1946	1946-03-11	1946-11-20
1947	1947-03-06	1947-12-04
1948	1948-01-03	1948-12-21
1949	1949-02-06	1949-11-18
1950	1950-04-04	1950-12-08
1951	1951-01-04	1951-12-11
1952	1952-02-01	1952-11-06
1953	1953-01-12	1953-12-21
1954	1954-03-14	1954-11-21
1955	1955-01-13	1955-12-19
1956	1956-02-15	1956-12-20
1957	1957-02-12	1957-11-06
1958	1958-02-15	1958-10-16
1959	1959-01-02	1959-12-21
1960	1960-04-21	1960-10-12
1961	1961-01-15	1961-12-25
1962	1962-01-19	1962-11-20
1963	1963-01-04	1963-12-11
1964	1964-01-01	1964-12-07
1965	1965-03-20	1965-12-17
1966	1966-01-31	1966-11-04
1967	1967-02-25	1967-12-10
1968	1968-02-27	1968-09-02
1969	1969-01-21	1969-09-11
1970	1970-01-31	1970-12-05
1971	1971-01-23	1971-12-11
1972	1972-01-11	1972-11-03
1973	1973-02-17	1973-12-23
1974	1974-01-15	1974-11-08
1975	1975-01-25	1975-12-22
1976	1976-01-09	1976-12-31

Every Fixed Threshold

Fixed thresholds at Longvale
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	56	33	1974	25
25 mm (0.98 in): Days with 25 mm or more rain	55	12	1974	3
50 mm (1.97 in): Days with 50 mm or more rain	37	7	1974	1
100 mm (3.94 in): Days with 100 mm or more rain	5	1	1952	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1952	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1921.

Download the Data

Data for Longvale 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).

Longvale Threshold Days by Year (SF000366050)

Key Facts for Longvale Thresholds

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

Every Fixed Threshold

Download the Data

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