Chestertown Threshold Days by Year (USC00181750)

18 fixed thresholds counted per year at Chestertown (USC00181750): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chestertown Thresholds

Chestertown: days with a maximum temperature at or above 30 C (86 F) in 88 years, most in 2002 with 98.
Chestertown: days with 10 mm (0.39 in) or more of precipitation in 88 years, most in 2003 with 58.
Chestertown: days with 25 mm (0.98 in) or more of precipitation in 88 years, most in 1971 with 21.
Chestertown: days with a maximum temperature at or above 90 F (32.2 C) in 87 years, most in 2002 with 67.
18 fixed thresholds have at least one qualifying day at Chestertown.

Days at or above 30 C (86 F)

88 years with a qualifying day

Days per year at Chestertown with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 98 in 2002.

Days at or above 30 C (86 F) per year at Chestertown
Year	Days	Decade average
1898	46	42
1899	38	42
1902	26	23.8
1903	18	23.8
1904	21	23.8
1905	16	23.8
1906	25	23.8
1907	18	23.8
1908	36	23.8
1909	30	23.8
1910	44	55.5
1911	65	55.5
1912	47	55.5
1913	66	55.5
1937	68	70.3
1938	63	70.3
1939	80	70.3
1940	43	60.6
1941	74	60.6
1942	62	60.6
1943	77	60.6
1944	67	60.6
1945	58	60.6
1946	50	60.6
1947	59	60.6
1948	50	60.6
1949	66	60.6
1950	51	68.6
1951	66	68.6
1952	69	68.6
1953	69	68.6
1954	73	68.6
1955	65	68.6
1956	61	68.6
1957	84	68.6
1958	54	68.6
1959	94	68.6
1960	52	58.5
1961	64	58.5
1962	62	58.5
1963	63	58.5
1964	66	58.5
1965	57	58.5
1966	72	58.5
1967	37	58.5
1968	57	58.5
1969	55	58.5
1970	60	51
1971	49	51
1972	34	51
1973	56	51
1974	45	51
1975	47	51
1976	61	51
1977	69	51
1978	52	51
1979	37	51
1980	70	60.4
1981	42	60.4
1982	46	60.4
1983	74	60.4
1984	50	60.4
1985	57	60.4
1986	71	60.4
1987	76	60.4
1988	69	60.4
1989	49	60.4
1990	62	68.2
1991	88	68.2
1992	44	68.2
1993	79	68.2
1994	69	68.2
1995	69	68.2
1996	56	68.2
1997	62	68.2
1998	85	68.2
1999	68	68.2
2000	56	66.4
2001	67	66.4
2002	98	66.4
2003	62	66.4
2004	77	66.4
2005	88	66.4
2006	72	66.4
2007	64	66.4
2008	50	66.4
2009	30	66.4
2010	69	69

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

First to last qualifying date each year at Chestertown
Year	First date	Last date
1898	1898-05-20	1898-09-18
1899	1899-05-29	1899-09-08
1902	1902-05-23	1902-08-11
1903	1903-05-20	1903-08-26
1904	1904-05-25	1904-09-03
1905	1905-06-05	1905-08-24
1906	1906-05-18	1906-09-11
1907	1907-06-22	1907-08-13
1908	1908-05-28	1908-08-17
1909	1909-05-15	1909-08-29
1910	1910-05-24	1910-09-27
1911	1911-05-11	1911-09-07
1912	1912-05-20	1912-09-12
1913	1913-05-03	1913-09-08
1937	1937-04-18	1937-09-05
1938	1938-04-20	1938-10-17
1939	1939-04-25	1939-10-10
1940	1940-05-13	1940-09-21
1941	1941-04-14	1941-10-07
1942	1942-04-06	1942-09-19
1943	1943-05-07	1943-09-23
1944	1944-05-16	1944-10-07
1945	1945-03-17	1945-09-29
1946	1946-05-25	1946-10-06
1947	1947-05-13	1947-10-23
1948	1948-03-21	1948-09-20
1949	1949-05-04	1949-10-11
1950	1950-05-06	1950-11-01
1951	1951-05-16	1951-10-06
1952	1952-04-23	1952-10-02
1953	1953-05-10	1953-09-30
1954	1954-05-02	1954-10-13
1955	1955-05-05	1955-09-20
1956	1956-05-13	1956-09-23
1957	1957-04-21	1957-09-22
1958	1958-05-31	1958-10-10
1959	1959-04-09	1959-10-08
1960	1960-04-15	1960-09-09
1961	1961-04-25	1961-09-25
1962	1962-04-26	1962-10-12
1963	1963-04-03	1963-09-20
1964	1964-04-18	1964-09-23
1965	1965-05-03	1965-09-23
1966	1966-05-06	1966-09-11
1967	1967-04-02	1967-10-05
1968	1968-06-06	1968-10-02
1969	1969-05-29	1969-09-17
1970	1970-05-09	1970-09-26
1971	1971-05-19	1971-09-11
1972	1972-07-02	1972-09-26
1973	1973-05-28	1973-09-06
1974	1974-04-29	1974-09-13
1975	1975-05-21	1975-08-30
1976	1976-04-16	1976-09-14
1977	1977-04-12	1977-09-19
1978	1978-05-20	1978-09-19
1979	1979-05-09	1979-09-06
1980	1980-05-06	1980-09-23
1981	1981-05-25	1981-09-14
1982	1982-05-17	1982-09-16
1983	1983-04-28	1983-09-20
1984	1984-05-19	1984-09-25
1985	1985-04-19	1985-09-21
1986	1986-05-06	1986-10-02
1987	1987-05-10	1987-09-16
1988	1988-05-23	1988-09-23
1989	1989-05-19	1989-09-21
1990	1990-03-14	1990-09-12
1991	1991-04-08	1991-10-04
1992	1992-05-02	1992-09-22
1993	1993-05-10	1993-09-15
1994	1994-04-25	1994-09-16
1995	1995-04-19	1995-10-06
1996	1996-04-22	1996-09-10
1997	1997-05-19	1997-10-10
1998	1998-03-29	1998-09-30
1999	1999-05-22	1999-09-09
2000	2000-05-05	2000-10-04
2001	2001-04-09	2001-09-13
2002	2002-04-16	2002-10-05
2003	2003-04-16	2003-09-27
2004	2004-04-18	2004-09-23
2005	2005-04-19	2005-09-22
2006	2006-05-28	2006-08-29
2007	2007-05-26	2007-10-09
2008	2008-06-07	2008-09-14
2009	2009-04-25	2009-08-26
2010	2010-05-26	2010-09-25

Every Fixed Threshold

Fixed thresholds at Chestertown
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	88	98	2002	69
35 C (95 F): Days	72	36	2002	8
40 C (104 F): Days	1	1	2002	1
90 F (32.2 C): Days	87	67	2002	33
100 F (37.8 C): Days	21	12	2002	2
0 C (32 F): Ice days (max	86	35	1904	16
0 C (32 F): Frost days (min	87	121	1940	85
-10 C (14 F): Days with min	83	27	1940	2
-20 C (-4 F): Days with min	8	4	1899	2
20 C (68 F): Tropical nights (min	87	66	2010	66
25 C (77 F): Days with min	28	4	1988	1
10 mm (0.39 in): Days with 10 mm or more rain	88	58	2003	39
25 mm (0.98 in): Days with 25 mm or more rain	88	21	1971	16
50 mm (1.97 in): Days with 50 mm or more rain	73	7	1973	3
100 mm (3.94 in): Days with 100 mm or more rain	12	1	1939	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1999	1
10 cm (3.9 in): Days with 10 cm or more snowfall	52	5	1996	5
25 cm (9.8 in): Days with 25 cm or more snowfall	12	2	1958	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 Chestertown 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).

Chestertown Threshold Days by Year (USC00181750)

Key Facts for Chestertown Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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