Charlotteburg Rsvr Threshold Days by Year (USC00281582)

19 fixed thresholds counted per year at Charlotteburg Rsvr (USC00281582): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Charlotteburg Rsvr Thresholds

Charlotteburg Rsvr: days with a maximum temperature at or above 30 C (86 F) in 130 years, most in 1934 with 64.
Charlotteburg Rsvr: days with a maximum temperature at or below 0 C (32 F) in 130 years, most in 1970 with 53.
Charlotteburg Rsvr: nights with a minimum temperature at or below 0 C (32 F) in 128 years, most in 1895 with 174.
Charlotteburg Rsvr: nights with a minimum temperature at or below -10 C (14 F) in 128 years, most in 1904 with 60.
19 fixed thresholds have at least one qualifying day at Charlotteburg Rsvr.

Days at or above 30 C (86 F)

130 years with a qualifying day

Days per year at Charlotteburg Rsvr with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 64 in 1934.

Days at or above 30 C (86 F) per year at Charlotteburg Rsvr
Year	Days	Decade average
1894	26	26.5
1895	32	26.5
1896	26	26.5
1897	16	26.5
1898	33	26.5
1899	26	26.5
1900	50	21.8
1901	23	21.8
1902	8	21.8
1903	21	21.8
1904	10	21.8
1905	17	21.8
1906	17	21.8
1907	22	21.8
1908	28	21.8
1909	22	21.8
1910	29	23.9
1911	30	23.9
1912	31	23.9
1913	30	23.9
1914	31	23.9
1915	20	23.9
1916	23	23.9
1917	12	23.9
1918	19	23.9
1919	14	23.9
1920	2	24.2
1921	29	24.2
1922	14	24.2
1923	29	24.2
1924	19	24.2
1925	30	24.2
1926	14	24.2
1927	19	24.2
1928	32	24.2
1929	54	24.2
1930	45	50.6
1931	44	50.6
1932	56	50.6
1933	45	50.6
1934	64	50.6
1935	51	50.6
1936	57	50.6
1937	48	50.6
1938	37	50.6
1939	59	50.6
1940	34	35.7
1941	45	35.7
1942	32	35.7
1943	37	35.7
1944	58	35.7
1945	33	35.7
1946	16	35.7
1947	31	35.7
1948	29	35.7
1949	42	35.7
1950	15	25.2
1951	20	25.2
1952	28	25.2
1953	37	25.2
1954	16	25.2
1955	35	25.2
1956	17	25.2
1957	31	25.2
1958	14	25.2
1959	39	25.2
1960	9	20.2
1961	24	20.2
1962	15	20.2
1963	18	20.2
1964	28	20.2
1965	27	20.2
1966	41	20.2
1967	9	20.2
1968	17	20.2
1969	14	20.2
1970	22	15.9
1971	14	15.9
1972	10	15.9
1973	23	15.9
1974	11	15.9
1975	17	15.9
1976	15	15.9
1977	24	15.9
1978	12	15.9
1979	11	15.9
1980	11	22.9
1981	15	22.9
1982	14	22.9
1983	41	22.9
1984	19	22.9
1985	15	22.9
1986	16	22.9
1987	31	22.9
1988	42	22.9
1989	25	22.9
1990	25	33.5
1991	56	33.5
1992	14	33.5
1993	45	33.5
1994	30	33.5
1995	38	33.5
1996	20	33.5
1997	28	33.5
1998	31	33.5
1999	48	33.5
2000	17	30.1
2001	31	30.1
2002	53	30.1
2003	26	30.1
2004	23	30.1
2005	40	30.1
2006	22	30.1
2007	29	30.1
2010	42	30.6
2012	31	30.6
2013	18	30.6
2014	22	30.6
2015	33	30.6
2016	43	30.6
2017	23	30.6
2018	35	30.6
2019	28	30.6
2020	32	31.7
2021	29	31.7
2022	34	31.7
2023	19	31.7
2024	39	31.7
2025	42	31.7
2026	27	31.7

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

First to last qualifying date each year at Charlotteburg Rsvr
Year	First date	Last date
1894	1894-06-11	1894-09-10
1895	1895-05-10	1895-09-26
1896	1896-04-16	1896-09-11
1897	1897-06-25	1897-10-16
1898	1898-06-12	1898-09-18
1899	1899-05-01	1899-08-22
1900	1900-05-13	1900-09-26
1901	1901-06-12	1901-07-31
1902	1902-04-22	1902-07-14
1903	1903-04-30	1903-09-14
1904	1904-06-06	1904-07-31
1905	1905-06-18	1905-08-24
1906	1906-05-18	1906-09-19
1907	1907-06-15	1907-08-20
1908	1908-06-21	1908-10-17
1909	1909-06-21	1909-08-25
1910	1910-06-20	1910-09-07
1911	1911-05-11	1911-08-23
1912	1912-05-21	1912-09-11
1913	1913-05-03	1913-09-04
1914	1914-05-22	1914-09-24
1915	1915-04-25	1915-09-17
1916	1916-07-07	1916-09-08
1917	1917-07-02	1917-08-24
1918	1918-05-06	1918-08-24
1919	1919-05-29	1919-09-08
1920	1920-07-13	1920-08-08
1921	1921-05-22	1921-09-03
1922	1922-06-07	1922-10-02
1923	1923-04-21	1923-09-01
1924	1924-06-22	1924-09-03
1925	1925-05-23	1925-09-11
1926	1926-07-03	1926-09-25
1927	1927-04-20	1927-09-16
1928	1928-05-04	1928-10-12
1929	1929-04-07	1929-09-10
1930	1930-05-05	1930-09-26
1931	1931-05-09	1931-09-23
1932	1932-05-16	1932-09-21
1933	1933-05-27	1933-09-27
1934	1934-05-06	1934-09-26
1935	1935-04-27	1935-09-13
1936	1936-04-30	1936-09-12
1937	1937-05-24	1937-09-10
1938	1938-04-28	1938-08-27
1939	1939-04-25	1939-10-10
1940	1940-05-14	1940-08-15
1941	1941-04-20	1941-10-06
1942	1942-04-30	1942-09-18
1943	1943-05-08	1943-09-16
1944	1944-05-04	1944-09-04
1945	1945-06-09	1945-09-09
1946	1946-06-08	1946-10-06
1947	1947-05-29	1947-09-14
1948	1948-05-10	1948-09-18
1949	1949-05-05	1949-10-10
1950	1950-06-07	1950-08-31
1951	1951-05-16	1951-09-01
1952	1952-06-16	1952-09-14
1953	1953-05-12	1953-09-06
1954	1954-06-22	1954-10-13
1955	1955-05-30	1955-08-23
1956	1956-05-14	1956-08-29
1957	1957-06-13	1957-09-14
1958	1958-07-02	1958-09-17
1959	1959-05-13	1959-10-07
1960	1960-07-10	1960-09-02
1961	1961-06-13	1961-09-25
1962	1962-04-28	1962-09-02
1963	1963-06-26	1963-10-08
1964	1964-05-24	1964-09-24
1965	1965-05-11	1965-09-23
1966	1966-06-06	1966-09-03
1967	1967-06-11	1967-09-20
1968	1968-06-07	1968-08-26
1969	1969-05-30	1969-09-02
1970	1970-05-11	1970-09-26
1971	1971-06-08	1971-09-10
1972	1972-07-13	1972-08-26
1973	1973-06-11	1973-09-06
1974	1974-05-18	1974-08-21
1975	1975-05-21	1975-08-26
1976	1976-04-18	1976-08-24
1977	1977-05-18	1977-09-03
1978	1978-06-20	1978-08-30
1979	1979-05-10	1979-08-06
1980	1980-06-28	1980-09-03
1981	1981-06-17	1981-08-12
1982	1982-07-09	1982-08-06
1983	1983-06-13	1983-09-21
1984	1984-06-08	1984-08-17
1985	1985-04-22	1985-09-08
1986	1986-05-19	1986-08-10
1987	1987-05-19	1987-08-19
1988	1988-05-30	1988-08-16
1989	1989-05-20	1989-09-12
1990	1990-04-27	1990-09-03
1991	1991-05-14	1991-09-18
1992	1992-05-22	1992-08-28
1993	1993-05-10	1993-09-16
1994	1994-04-28	1994-08-14
1995	1995-06-08	1995-09-07
1996	1996-05-20	1996-09-04
1997	1997-06-11	1997-08-18
1998	1998-04-01	1998-09-28
1999	1999-05-30	1999-08-29
2000	2000-05-07	2000-09-10
2001	2001-05-02	2001-09-08
2002	2002-04-17	2002-10-03
2003	2003-06-24	2003-08-23
2004	2004-05-12	2004-09-05
2005	2005-06-06	2005-09-14
2006	2006-05-30	2006-08-04
2007	2007-05-27	2007-10-09
2010	2010-04-09	2010-09-25
2012	2012-04-17	2012-09-08
2013	2013-05-31	2013-09-12
2014	2014-05-13	2014-09-07
2015	2015-05-09	2015-09-10
2016	2016-05-26	2016-09-24
2017	2017-04-12	2017-09-28
2018	2018-05-03	2018-09-07
2019	2019-06-27	2019-10-03
2020	2020-06-10	2020-08-28
2021	2021-05-24	2021-08-31
2022	2022-05-22	2022-09-05
2023	2023-04-14	2023-09-09
2024	2024-04-30	2024-08-29
2025	2025-06-05	2025-10-06
2026	2026-04-15	2026-08-14

Every Fixed Threshold

Fixed thresholds at Charlotteburg Rsvr
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	130	64	1934	27
35 C (95 F): Days	54	15	1999	3
40 C (104 F): Days	1	1	1936	1
90 F (32.2 C): Days	125	33	1934	9
100 F (37.8 C): Days	6	4	1936	1
0 C (32 F): Ice days (max	130	53	1970	28
0 C (32 F): Frost days (min	128	174	1895	86
-10 C (14 F): Days with min	128	60	1904	23
-20 C (-4 F): Days with min	84	11	1904	2
-30 C (-22 F): Days with min	5	2	1984	2
20 C (68 F): Tropical nights (min	119	28	2025	12
25 C (77 F): Days with min	6	1	1894	1
10 mm (0.39 in): Days with 10 mm or more rain	104	55	1972	17
25 mm (0.98 in): Days with 25 mm or more rain	104	31	1983	10
50 mm (1.97 in): Days with 50 mm or more rain	96	8	1952	3
100 mm (3.94 in): Days with 100 mm or more rain	20	3	1955	2
10 cm (3.9 in): Days with 10 cm or more snowfall	91	8	1945	3
25 cm (9.8 in): Days with 25 cm or more snowfall	32	3	1947	2
50 cm (19.7 in): Days with 50 cm or more snowfall	2	1	1926	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1894.

Download the Data

Data for Charlotteburg Rsvr 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Charlotteburg Rsvr Threshold Days by Year (USC00281582)

Key Facts for Charlotteburg Rsvr Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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