Pokegama Dam Threshold Days by Year (USC00216612)

18 fixed thresholds counted per year at Pokegama Dam (USC00216612): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Pokegama Dam Thresholds

Pokegama Dam: days with 10 mm (0.39 in) or more of precipitation in 123 years, most in 1905 with 36.
Pokegama Dam: days with 25 mm (0.98 in) or more of precipitation in 121 years, most in 1899 with 12.
Pokegama Dam: nights with a minimum temperature at or below 0 C (32 F) in 107 years, most in 1917 with 235.
Pokegama Dam: nights with a minimum temperature at or below -10 C (14 F) in 107 years, most in 1893 with 133.
18 fixed thresholds have at least one qualifying day at Pokegama Dam.

Days at or above 30 C (86 F)

102 years with a qualifying day

Days per year at Pokegama Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 32 in 1902.

Days at or above 30 C (86 F) per year at Pokegama Dam
Year	Days	Decade average
1898	13	9.5
1899	6	9.5
1900	26	13.7
1901	20	13.7
1902	32	13.7
1903	2	13.7
1904	5	13.7
1905	5	13.7
1906	17	13.7
1907	6	13.7
1908	14	13.7
1909	10	13.7
1910	22	12.4
1911	15	12.4
1912	12	12.4
1913	10	12.4
1914	14	12.4
1915	1	12.4
1916	21	12.4
1917	15	12.4
1918	4	12.4
1919	10	12.4
1920	7	11.3
1921	23	11.3
1922	11	11.3
1923	14	11.3
1924	3	11.3
1925	17	11.3
1926	9	11.3
1927	5	11.3
1928	5	11.3
1929	19	11.3
1930	24	19.1
1931	30	19.1
1932	12	19.1
1933	21	19.1
1934	14	19.1
1935	18	19.1
1936	22	19.1
1937	17	19.1
1938	13	19.1
1939	20	19.1
1940	11	12.1
1941	15	12.1
1942	5	12.1
1943	19	12.1
1944	8	12.1
1945	10	12.1
1946	5	12.1
1947	17	12.1
1948	17	12.1
1949	14	12.1
1950	4	10.6
1951	5	10.6
1952	15	10.6
1953	13	10.6
1954	6	10.6
1955	22	10.6
1956	5	10.6
1957	9	10.6
1958	7	10.6
1959	20	10.6
1960	12	12.1
1961	22	12.1
1962	2	12.1
1963	13	12.1
1964	21	12.1
1965	6	12.1
1966	13	12.1
1967	8	12.1
1968	6	12.1
1969	18	12.1
1970	32	17.5
1971	12	17.5
1972	15	17.5
1973	14	17.5
1974	12	17.5
1975	21	17.5
1976	30	17.5
1977	17	17.5
1978	17	17.5
1979	5	17.5
1980	29	17
1981	8	17
1982	7	17
1983	31	17
1984	21	17
1985	2	17
1986	18	17
1987	20	17
2008	2	2
2012	15	7.8
2013	10	7.8
2015	6	7.8
2017	3	7.8
2018	9	7.8
2019	4	7.8
2020	14	16.6
2021	30	16.6
2024	7	16.6
2025	15	16.6
2026	17	16.6

For each year, a bar from the first to the last day at Pokegama Dam meeting 30 C (86 F).

First to last qualifying date each year at Pokegama Dam
Year	First date	Last date
1898	1898-06-17	1898-09-21
1899	1899-07-13	1899-08-28
1900	1900-05-13	1900-09-05
1901	1901-05-17	1901-09-04
1902	1902-05-18	1902-08-01
1903	1903-07-21	1903-07-22
1904	1904-06-18	1904-08-14
1905	1905-06-13	1905-08-10
1906	1906-06-16	1906-09-10
1907	1907-06-16	1907-08-31
1908	1908-07-09	1908-09-22
1909	1909-06-19	1909-08-27
1910	1910-06-14	1910-08-20
1911	1911-05-17	1911-08-20
1912	1912-06-24	1912-09-09
1913	1913-05-27	1913-09-06
1914	1914-07-04	1914-08-08
1915	1915-08-14	1915-08-14
1916	1916-07-05	1916-09-03
1917	1917-06-17	1917-08-22
1918	1918-05-05	1918-08-04
1919	1919-05-28	1919-07-26
1920	1920-06-08	1920-09-25
1921	1921-05-21	1921-09-01
1922	1922-06-06	1922-09-04
1923	1923-06-01	1923-07-22
1924	1924-08-26	1924-08-29
1925	1925-05-19	1925-08-28
1926	1926-05-05	1926-08-27
1927	1927-06-28	1927-09-14
1928	1928-07-24	1928-08-14
1929	1929-06-16	1929-09-03
1930	1930-06-21	1930-08-31
1931	1931-05-15	1931-09-12
1932	1932-05-13	1932-08-30
1933	1933-06-01	1933-09-05
1934	1934-05-27	1934-08-18
1935	1935-07-03	1935-09-24
1936	1936-06-24	1936-09-22
1937	1937-05-29	1937-09-02
1938	1938-06-20	1938-08-28
1939	1939-05-30	1939-09-14
1940	1940-06-17	1940-08-13
1941	1941-06-18	1941-08-03
1942	1942-07-12	1942-08-30
1943	1943-06-18	1943-07-29
1944	1944-06-25	1944-08-10
1945	1945-06-22	1945-09-05
1946	1946-07-13	1946-08-03
1947	1947-07-15	1947-09-08
1948	1948-06-02	1948-09-16
1949	1949-05-03	1949-08-22
1950	1950-06-22	1950-08-16
1951	1951-07-24	1951-08-01
1952	1952-04-27	1952-09-11
1953	1953-06-12	1953-09-02
1954	1954-06-29	1954-08-25
1955	1955-05-21	1955-08-19
1956	1956-06-10	1956-06-14
1957	1957-07-07	1957-08-09
1958	1958-07-23	1958-08-12
1959	1959-05-01	1959-08-24
1960	1960-07-12	1960-09-06
1961	1961-05-31	1961-09-03
1962	1962-06-28	1962-08-27
1963	1963-06-25	1963-10-05
1964	1964-05-21	1964-08-06
1965	1965-07-22	1965-08-14
1966	1966-06-28	1966-08-27
1967	1967-07-10	1967-08-16
1968	1968-06-06	1968-08-06
1969	1969-05-27	1969-08-30
1970	1970-06-06	1970-09-06
1971	1971-06-06	1971-09-04
1972	1972-05-17	1972-08-30
1973	1973-06-09	1973-08-30
1974	1974-07-02	1974-07-19
1975	1975-05-20	1975-08-24
1976	1976-06-06	1976-09-12
1977	1977-04-10	1977-07-20
1978	1978-05-25	1978-09-07
1979	1979-06-15	1979-07-21
1980	1980-04-21	1980-07-30
1981	1981-07-05	1981-07-14
1982	1982-07-05	1982-08-06
1983	1983-06-25	1983-09-03
1984	1984-07-12	1984-09-20
1985	1985-07-07	1985-07-08
1986	1986-05-27	1986-07-23
1987	1987-05-16	1987-08-15
2008	2008-06-27	2008-08-18
2012	2012-05-19	2012-09-04
2013	2013-05-15	2013-08-29
2015	2015-07-26	2015-10-11
2017	2017-07-06	2017-07-18
2018	2018-05-26	2018-08-14
2019	2019-06-09	2019-07-18
2020	2020-06-17	2020-07-25
2021	2021-06-04	2021-09-20
2024	2024-07-21	2024-09-17
2025	2025-05-12	2025-09-30
2026	2026-05-26	2026-07-31

Every Fixed Threshold

Fixed thresholds at Pokegama Dam
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	102	32	1902	17
35 C (95 F): Days	23	8	1936	1
90 F (32.2 C): Days	85	17	1902	3
100 F (37.8 C): Days	4	4	1936	4
0 C (32 F): Ice days (max	102	126	1955	47
0 C (32 F): Frost days (min	107	235	1917	108
-10 C (14 F): Days with min	107	133	1893	50
-20 C (-4 F): Days with min	107	88	1893	23
-30 C (-22 F): Days with min	105	39	1893	4
-40 C (-40 F): Days with min	49	19	1904	2
20 C (68 F): Tropical nights (min	72	11	1983	5
25 C (77 F): Days with min	4	1	1901	1
10 mm (0.39 in): Days with 10 mm or more rain	123	36	1905	12
25 mm (0.98 in): Days with 25 mm or more rain	121	12	1899	2
50 mm (1.97 in): Days with 50 mm or more rain	73	3	1901	1
100 mm (3.94 in): Days with 100 mm or more rain	7	1	1901	1
10 cm (3.9 in): Days with 10 cm or more snowfall	68	8	1950	2
25 cm (9.8 in): Days with 25 cm or more snowfall	10	2	1965	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1898.

Download the Data

Data for Pokegama Dam 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Pokegama Dam Threshold Days by Year (USC00216612)

Key Facts for Pokegama Dam Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related