Hart 3 WSW Threshold Days by Year (USC00203632)

18 fixed thresholds counted per year at Hart 3 WSW (USC00203632): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hart 3 WSW Thresholds

Hart 3 WSW: days with a maximum temperature at or below 0 C (32 F) in 111 years, most in 2014 with 82.
Hart 3 WSW: nights with a minimum temperature at or below 0 C (32 F) in 111 years, most in 1926 with 181.
Hart 3 WSW: nights with a minimum temperature at or below -10 C (14 F) in 111 years, most in 1929 with 68.
Hart 3 WSW: days with a maximum temperature at or above 30 C (86 F) in 110 years, most in 1913 with 47.
18 fixed thresholds have at least one qualifying day at Hart 3 WSW.

Days at or above 30 C (86 F)

110 years with a qualifying day

Days per year at Hart 3 WSW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 47 in 1913.

Days at or above 30 C (86 F) per year at Hart 3 WSW
Year	Days	Decade average
1893	13	17.8
1894	3	17.8
1895	1	17.8
1897	39	17.8
1898	29	17.8
1899	22	17.8
1900	29	24.3
1901	34	24.3
1902	10	24.3
1913	47	26
1914	21	26
1915	5	26
1916	35	26
1917	10	26
1918	24	26
1919	40	26
1920	23	20.8
1921	45	20.8
1922	14	20.8
1923	26	20.8
1924	5	20.8
1925	22	20.8
1926	14	20.8
1927	13	20.8
1928	17	20.8
1929	29	20.8
1930	35	30.8
1931	43	30.8
1932	24	30.8
1933	28	30.8
1934	45	30.8
1935	19	30.8
1936	34	30.8
1937	39	30.8
1938	7	30.8
1939	34	30.8
1940	15	24.7
1941	27	24.7
1942	13	24.7
1943	24	24.7
1944	34	24.7
1945	17	24.7
1946	22	24.7
1947	37	24.7
1948	22	24.7
1949	36	24.7
1950	8	21.2
1951	12	21.2
1952	31	21.2
1953	35	21.2
1954	18	21.2
1955	39	21.2
1956	10	21.2
1957	13	21.2
1958	10	21.2
1959	36	21.2
1960	11	15.1
1961	14	15.1
1962	14	15.1
1963	19	15.1
1964	29	15.1
1965	7	15.1
1966	17	15.1
1967	6	15.1
1968	21	15.1
1969	13	15.1
1970	19	14.7
1971	10	14.7
1972	13	14.7
1973	20	14.7
1974	9	14.7
1975	18	14.7
1976	18	14.7
1977	19	14.7
1978	12	14.7
1979	9	14.7
1980	16	16.7
1981	9	16.7
1982	11	16.7
1983	32	16.7
1984	13	16.7
1985	11	16.7
1986	7	16.7
1987	20	16.7
1988	31	16.7
1990	4	7.1
1991	12	7.1
1993	5	7.1
1994	6	7.1
1996	4	7.1
1997	4	7.1
1999	15	7.1
2000	3	8
2003	8	8
2006	11	8
2008	12	8
2009	6	8
2010	17	16
2011	17	16
2012	35	16
2013	8	16
2014	7	16
2015	12	16
2016	21	16
2017	11	16
2022	7	19.6
2023	18	19.6
2024	21	19.6
2025	29	19.6
2026	23	19.6

For each year, a bar from the first to the last day at Hart 3 WSW meeting 30 C (86 F).

First to last qualifying date each year at Hart 3 WSW
Year	First date	Last date
1893	1893-06-15	1893-08-24
1894	1894-06-24	1894-07-11
1895	1895-05-31	1895-05-31
1897	1897-06-14	1897-10-15
1898	1898-06-03	1898-09-04
1899	1899-06-04	1899-09-07
1900	1900-06-23	1900-09-11
1901	1901-04-30	1901-09-06
1902	1902-05-19	1902-08-30
1913	1913-06-14	1913-09-08
1914	1914-06-08	1914-09-20
1915	1915-04-25	1915-09-04
1916	1916-05-26	1916-08-24
1917	1917-07-21	1917-08-01
1918	1918-06-16	1918-08-27
1919	1919-05-29	1919-09-09
1920	1920-06-10	1920-09-26
1921	1921-05-20	1921-09-01
1922	1922-06-16	1922-09-08
1923	1923-05-29	1923-08-14
1924	1924-06-19	1924-09-21
1925	1925-06-01	1925-09-04
1926	1926-05-07	1926-08-28
1927	1927-06-29	1927-09-15
1928	1928-07-05	1928-08-17
1929	1929-05-31	1929-09-04
1930	1930-05-10	1930-09-23
1931	1931-05-29	1931-09-12
1932	1932-06-16	1932-08-31
1933	1933-06-06	1933-09-09
1934	1934-05-30	1934-08-18
1935	1935-07-05	1935-09-18
1936	1936-05-09	1936-09-23
1937	1937-06-24	1937-09-23
1938	1938-05-31	1938-08-09
1939	1939-05-31	1939-09-16
1940	1940-06-06	1940-08-16
1941	1941-06-20	1941-08-30
1942	1942-06-10	1942-09-01
1943	1943-06-20	1943-08-25
1944	1944-05-30	1944-09-04
1945	1945-06-24	1945-09-08
1946	1946-06-27	1946-09-19
1947	1947-06-10	1947-09-20
1948	1948-06-02	1948-09-20
1949	1949-06-01	1949-09-04
1950	1950-07-10	1950-08-16
1951	1951-05-20	1951-10-05
1952	1952-06-06	1952-09-14
1953	1953-05-30	1953-09-04
1954	1954-06-11	1954-09-07
1955	1955-07-02	1955-09-18
1956	1956-06-10	1956-08-05
1957	1957-06-16	1957-09-01
1958	1958-07-03	1958-08-30
1959	1959-05-03	1959-09-09
1960	1960-07-12	1960-09-08
1961	1961-06-12	1961-09-10
1962	1962-05-16	1962-08-30
1963	1963-06-03	1963-08-03
1964	1964-06-09	1964-08-04
1965	1965-07-22	1965-08-15
1966	1966-06-22	1966-09-01
1967	1967-06-12	1967-07-11
1968	1968-06-07	1968-08-24
1969	1969-05-31	1969-08-30
1970	1970-06-17	1970-08-15
1971	1971-06-06	1971-09-08
1972	1972-05-19	1972-08-30
1973	1973-06-10	1973-09-04
1974	1974-07-07	1974-08-27
1975	1975-06-20	1975-08-04
1976	1976-06-07	1976-09-08
1977	1977-05-16	1977-08-28
1978	1978-05-29	1978-09-12
1979	1979-07-11	1979-08-08
1980	1980-06-24	1980-08-20
1981	1981-07-07	1981-07-26
1982	1982-05-15	1982-08-08
1983	1983-06-14	1983-10-02
1984	1984-07-14	1984-08-30
1985	1985-05-27	1985-09-08
1986	1986-07-06	1986-07-25
1987	1987-06-14	1987-08-03
1988	1988-05-31	1988-08-17
1990	1990-07-04	1990-08-27
1991	1991-06-14	1991-08-29
1993	1993-05-09	1993-08-25
1994	1994-06-14	1994-07-06
1996	1996-08-05	1996-09-05
1997	1997-06-24	1997-07-27
1999	1999-06-10	1999-09-05
2000	2000-08-30	2000-09-02
2003	2003-06-25	2003-09-18
2006	2006-05-27	2006-08-04
2008	2008-06-27	2008-09-03
2009	2009-06-23	2009-08-17
2010	2010-05-24	2010-08-31
2011	2011-06-07	2011-09-02
2012	2012-05-21	2012-09-06
2013	2013-07-15	2013-09-11
2014	2014-06-01	2014-08-11
2015	2015-07-13	2015-09-07
2016	2016-06-01	2016-09-07
2017	2017-06-15	2017-09-27
2022	2022-05-13	2022-08-06
2023	2023-05-31	2023-09-06
2024	2024-06-18	2024-09-22
2025	2025-05-16	2025-09-16
2026	2026-05-28	2026-09-04

Every Fixed Threshold

Fixed thresholds at Hart 3 WSW
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	110	47	1913	23
35 C (95 F): Days	36	10	1936	1
40 C (104 F): Days	1	1	1936	1
90 F (32.2 C): Days	95	27	1913	9
100 F (37.8 C): Days	5	6	1936	2
0 C (32 F): Ice days (max	111	82	2014	45
0 C (32 F): Frost days (min	111	181	1926	95
-10 C (14 F): Days with min	111	68	1929	27
-20 C (-4 F): Days with min	85	16	1978	5
-30 C (-22 F): Days with min	5	4	1899	1
20 C (68 F): Tropical nights (min	106	20	1913	13
25 C (77 F): Days with min	15	4	1919	1
10 mm (0.39 in): Days with 10 mm or more rain	105	44	2019	24
25 mm (0.98 in): Days with 25 mm or more rain	105	11	1902	7
50 mm (1.97 in): Days with 50 mm or more rain	63	4	1934	3
100 mm (3.94 in): Days with 100 mm or more rain	8	1	1926	1
10 cm (3.9 in): Days with 10 cm or more snowfall	76	18	2008	1
25 cm (9.8 in): Days with 25 cm or more snowfall	21	2	1965	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1893.

Download the Data

Data for Hart 3 WSW 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).

Hart 3 WSW Threshold Days by Year (USC00203632)

Key Facts for Hart 3 WSW Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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