Dunn Ctr 1E Threshold Days by Year

19 fixed thresholds counted per year at Dunn Ctr 1E (USC00322365): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Dunn Ctr 1E Thresholds

Dunn Ctr 1E: days with a maximum temperature at or above 30 C (86 F) in 91 years, most in 1936 with 69.
Dunn Ctr 1E: days with a maximum temperature at or above 90 F (32.2 C) in 91 years, most in 1988 with 57.
Dunn Ctr 1E: days with a maximum temperature at or below 0 C (32 F) in 91 years, most in 1978 with 112.
Dunn Ctr 1E: nights with a minimum temperature at or below 0 C (32 F) in 91 years, most in 1950 with 222.
19 fixed thresholds have at least one qualifying day at Dunn Ctr 1E.

Days at or above 30 C (86 F)

91 years with a qualifying day

Days per year at Dunn Ctr 1E with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 69 in 1936.

Days at or above 30 C (86 F) per year at Dunn Ctr 1E
Year	Days	Decade average
1920	37	26.8
1921	40	26.8
1922	28	26.8
1924	13	26.8
1925	33	26.8
1926	20	26.8
1927	16	26.8
1928	14	26.8
1929	40	26.8
1930	39	41
1931	43	41
1932	29	41
1933	42	41
1934	49	41
1935	26	41
1936	69	41
1937	41	41
1938	33	41
1939	39	41
1940	47	32.7
1941	38	32.7
1942	27	32.7
1943	30	32.7
1944	15	32.7
1945	19	32.7
1946	35	32.7
1947	19	32.7
1949	64	32.7
1950	26	32
1952	39	32
1953	23	32
1954	28	32
1955	44	32
1956	27	32
1957	27	32
1958	35	32
1959	39	32
1960	34	30.1
1961	55	30.1
1962	15	30.1
1963	35	30.1
1964	30	30.1
1965	11	30.1
1966	32	30.1
1967	36	30.1
1968	21	30.1
1969	32	30.1
1970	36	28.8
1971	30	28.8
1972	27	28.8
1973	32	28.8
1974	31	28.8
1975	26	28.8
1976	39	28.8
1977	20	28.8
1978	29	28.8
1979	18	28.8
1980	36	35.9
1981	30	35.9
1982	27	35.9
1983	20	35.9
1984	38	35.9
1985	28	35.9
1986	26	35.9
1988	68	35.9
1989	50	35.9
1990	60	39.2
1991	46	39.2
1992	32	39.2
1993	9	39.2
1994	49	39.2
1995	31	39.2
1996	36	39.2
1997	43	39.2
1998	47	39.2
2010	33	37.1
2011	37	37.1
2012	46	37.1
2013	25	37.1
2015	34	37.1
2016	34	37.1
2017	49	37.1
2018	48	37.1
2019	28	37.1
2020	43	50.4
2021	65	50.4
2022	54	50.4
2023	52	50.4
2024	45	50.4
2025	38	50.4
2026	56	50.4

For each year, a bar from the first to the last day at Dunn Ctr 1E meeting 30 C (86 F).

First to last qualifying date each year at Dunn Ctr 1E
Year	First date	Last date
1920	1920-06-07	1920-10-06
1921	1921-06-09	1921-09-03
1922	1922-06-04	1922-10-03
1924	1924-07-10	1924-09-30
1925	1925-05-19	1925-09-16
1926	1926-04-29	1926-08-30
1927	1927-06-25	1927-09-13
1928	1928-05-06	1928-09-18
1929	1929-05-13	1929-09-14
1930	1930-07-01	1930-09-04
1931	1931-05-14	1931-09-07
1932	1932-05-13	1932-09-08
1933	1933-05-31	1933-09-18
1934	1934-04-28	1934-10-11
1935	1935-06-29	1935-09-22
1936	1936-05-12	1936-09-22
1937	1937-05-27	1937-10-03
1938	1938-06-13	1938-09-27
1939	1939-04-30	1939-09-21
1940	1940-05-11	1940-09-18
1941	1941-05-18	1941-09-18
1942	1942-04-22	1942-10-10
1943	1943-06-19	1943-10-10
1944	1944-05-13	1944-08-28
1945	1945-06-21	1945-09-05
1946	1946-06-09	1946-09-16
1947	1947-07-04	1947-09-07
1949	1949-04-20	1949-10-06
1950	1950-06-07	1950-09-07
1952	1952-04-27	1952-09-28
1953	1953-06-13	1953-10-02
1954	1954-05-21	1954-09-01
1955	1955-05-03	1955-10-10
1956	1956-06-06	1956-09-27
1957	1957-07-02	1957-10-03
1958	1958-05-12	1958-09-13
1959	1959-06-06	1959-09-14
1960	1960-05-13	1960-09-21
1961	1961-05-31	1961-09-19
1962	1962-04-25	1962-09-03
1963	1963-05-31	1963-10-05
1964	1964-05-21	1964-09-18
1965	1965-07-22	1965-08-24
1966	1966-05-22	1966-09-21
1967	1967-05-25	1967-10-01
1968	1968-05-01	1968-09-15
1969	1969-05-27	1969-09-14
1970	1970-06-06	1970-10-06
1971	1971-07-03	1971-09-12
1972	1972-05-17	1972-09-20
1973	1973-06-14	1973-09-01
1974	1974-06-20	1974-08-25
1975	1975-06-25	1975-09-17
1976	1976-06-03	1976-09-18
1977	1977-05-10	1977-08-09
1978	1978-06-10	1978-09-11
1979	1979-05-17	1979-09-17
1980	1980-04-21	1980-09-08
1981	1981-06-27	1981-09-13
1982	1982-06-23	1982-09-11
1983	1983-06-11	1983-09-26
1984	1984-05-17	1984-09-20
1985	1985-05-04	1985-08-22
1986	1986-05-04	1986-08-30
1988	1988-04-30	1988-10-13
1989	1989-06-06	1989-10-01
1990	1990-04-21	1990-09-25
1991	1991-06-11	1991-09-07
1992	1992-05-06	1992-10-01
1993	1993-05-13	1993-08-22
1994	1994-05-17	1994-09-28
1995	1995-06-13	1995-09-03
1996	1996-06-08	1996-09-05
1997	1997-05-31	1997-10-03
1998	1998-05-17	1998-09-17
2010	2010-06-17	2010-10-08
2011	2011-06-03	2011-10-07
2012	2012-04-25	2012-09-29
2013	2013-05-14	2013-09-08
2015	2015-05-31	2015-09-27
2016	2016-04-22	2016-09-02
2017	2017-05-08	2017-09-14
2018	2018-05-17	2018-09-09
2019	2019-06-04	2019-09-17
2020	2020-05-22	2020-09-25
2021	2021-06-04	2021-10-07
2022	2022-06-17	2022-09-20
2023	2023-05-25	2023-09-19
2024	2024-06-16	2024-10-10
2025	2025-05-05	2025-10-04
2026	2026-05-26	2026-09-11

Every Fixed Threshold

Fixed thresholds at Dunn Ctr 1E
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	91	69	1936	56
35 C (95 F): Days	89	36	1988	19
40 C (104 F): Days	19	7	1936	6
90 F (32.2 C): Days	91	57	1988	40
100 F (37.8 C): Days	60	17	1988	10
110 F (43.3 C): Days	3	2	1936	1
0 C (32 F): Ice days (max	91	112	1978	37
0 C (32 F): Frost days (min	91	222	1950	118
-10 C (14 F): Days with min	91	133	1950	36
-20 C (-4 F): Days with min	91	70	1949	19
-30 C (-22 F): Days with min	85	25	1936	4
-40 C (-40 F): Days with min	8	2	1929	2
20 C (68 F): Tropical nights (min	48	12	1936	1
25 C (77 F): Days with min	1	1	1988	1
10 mm (0.39 in): Days with 10 mm or more rain	76	23	1986	8
25 mm (0.98 in): Days with 25 mm or more rain	71	7	2013	2
50 mm (1.97 in): Days with 50 mm or more rain	26	3	2016	3
10 cm (3.9 in): Days with 10 cm or more snowfall	44	8	1967	1
25 cm (9.8 in): Days with 25 cm or more snowfall	7	1	1949	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1920.

Download the Data

Data for Dunn Ctr 1E 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Dunn Ctr 1E Threshold Days by Year

Key Facts for Dunn Ctr 1E Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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