Longlea Threshold Days by Year (ASN00081001)

4 fixed thresholds counted per year at Longlea (ASN00081001): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Longlea Thresholds

Longlea: days with 10 mm (0.39 in) or more of precipitation in 52 years, most in 1906 with 23.
Longlea: days with 25 mm (0.98 in) or more of precipitation in 47 years, most in 1903 with 8.
Longlea: days with 50 mm (1.97 in) or more of precipitation in 18 years, most in 1920 with 3.
Longlea: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1939 with 1.
4 fixed thresholds have at least one qualifying day at Longlea.

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

52 years with a qualifying day

Days per year at Longlea with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 23 in 1906.

Days with 10 mm (0.39 in) or more of precipitation per year at Longlea
Year	Days	Decade average
1902	6	16.4
1903	20	16.4
1904	19	16.4
1905	17	16.4
1906	23	16.4
1907	13	16.4
1908	13	16.4
1909	20	16.4
1910	21	16.5
1911	16	16.5
1912	15	16.5
1913	15	16.5
1914	9	16.5
1915	19	16.5
1916	18	16.5
1917	21	16.5
1918	21	16.5
1919	10	16.5
1920	14	13.7
1921	22	13.7
1922	10	13.7
1923	11	13.7
1924	22	13.7
1925	11	13.7
1926	11	13.7
1927	7	13.7
1928	19	13.7
1929	10	13.7
1930	20	15.9
1931	20	15.9
1932	19	15.9
1933	20	15.9
1934	16	15.9
1935	14	15.9
1936	13	15.9
1937	9	15.9
1938	5	15.9
1939	23	15.9
1940	5	12.1
1941	12	12.1
1942	19	12.1
1943	7	12.1
1944	8	12.1
1945	9	12.1
1946	10	12.1
1947	20	12.1
1948	14	12.1
1949	17	12.1
1950	18	17.5
1951	18	17.5
1952	20	17.5
1953	14	17.5

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

First to last qualifying date each year at Longlea
Year	First date	Last date
1902	1902-03-25	1902-12-18
1903	1903-03-04	1903-12-29
1904	1904-01-03	1904-12-15
1905	1905-02-12	1905-12-31
1906	1906-02-28	1906-12-18
1907	1907-01-26	1907-12-28
1908	1908-01-10	1908-11-23
1909	1909-01-04	1909-12-01
1910	1910-01-22	1910-12-10
1911	1911-01-18	1911-09-28
1912	1912-06-10	1912-12-04
1913	1913-02-15	1913-12-23
1914	1914-01-25	1914-12-25
1915	1915-01-31	1915-10-23
1916	1916-01-28	1916-12-09
1917	1917-02-21	1917-11-14
1918	1918-01-13	1918-09-02
1919	1919-02-18	1919-12-28
1920	1920-05-11	1920-11-15
1921	1921-01-02	1921-11-05
1922	1922-02-20	1922-12-30
1923	1923-05-08	1923-09-21
1924	1924-01-04	1924-12-26
1925	1925-01-13	1925-11-19
1926	1926-01-08	1926-12-22
1927	1927-05-11	1927-09-01
1928	1928-01-18	1928-10-15
1929	1929-01-31	1929-12-02
1930	1930-02-20	1930-12-24
1931	1931-03-02	1931-11-17
1932	1932-02-10	1932-12-16
1933	1933-01-22	1933-12-01
1934	1934-01-07	1934-12-01
1935	1935-01-05	1935-10-23
1936	1936-01-09	1936-12-18
1937	1937-01-25	1937-10-16
1938	1938-02-05	1938-07-25
1939	1939-01-16	1939-11-16
1940	1940-04-25	1940-12-20
1941	1941-01-04	1941-11-05
1942	1942-01-20	1942-11-22
1943	1943-01-03	1943-11-18
1944	1944-01-23	1944-12-21
1945	1945-05-04	1945-10-27
1946	1946-01-18	1946-11-19
1947	1947-02-08	1947-12-23
1948	1948-02-16	1948-12-26
1949	1949-02-21	1949-11-22
1950	1950-02-01	1950-12-20
1951	1951-01-07	1951-08-20
1952	1952-01-05	1952-11-27
1953	1953-01-15	1953-11-05

Every Fixed Threshold

Fixed thresholds at Longlea
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	52	23	1906	14
25 mm (0.98 in): Days with 25 mm or more rain	47	8	1903	3
50 mm (1.97 in): Days with 50 mm or more rain	18	3	1920	3
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1939	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1902.

Download the Data

Data for Longlea 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).

Longlea Threshold Days by Year (ASN00081001)

Key Facts for Longlea Thresholds

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

Every Fixed Threshold

Download the Data

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