Ozark Threshold Days by Year (USC00035508)

19 fixed thresholds counted per year at Ozark (USC00035508): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ozark Thresholds

Ozark: nights with a minimum temperature at or below 0 C (32 F) in 86 years, most in 1989 with 103.
Ozark: nights with a minimum temperature at or above 20 C (68 F) in 86 years, most in 1896 with 110.
Ozark: days with a maximum temperature at or above 30 C (86 F) in 85 years, most in 1963 with 142.
Ozark: days with a maximum temperature at or above 35 C (95 F) in 85 years, most in 1954 with 89.
19 fixed thresholds have at least one qualifying day at Ozark.

Days at or above 30 C (86 F)

85 years with a qualifying day

Days per year at Ozark with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 142 in 1963.

Days at or above 30 C (86 F) per year at Ozark
Year	Days	Decade average
1894	107	116.7
1895	104	116.7
1896	126	116.7
1897	124	116.7
1898	119	116.7
1899	120	116.7
1901	125	108
1902	119	108
1903	96	108
1905	103	108
1906	94	108
1909	111	108
1910	110	110.5
1918	111	110.5
1921	122	107.9
1922	119	107.9
1923	87	107.9
1924	108	107.9
1925	125	107.9
1926	116	107.9
1928	92	107.9
1929	94	107.9
1930	108	115.7
1931	117	115.7
1932	113	115.7
1933	113	115.7
1934	120	115.7
1935	95	115.7
1936	124	115.7
1937	116	115.7
1938	124	115.7
1939	127	115.7
1940	92	107.7
1941	104	107.7
1942	110	107.7
1943	121	107.7
1944	111	107.7
1945	98	107.7
1946	115	107.7
1947	107	107.7
1948	112	107.7
1949	107	107.7
1950	79	112.6
1951	98	112.6
1952	130	112.6
1953	135	112.6
1954	129	112.6
1955	116	112.6
1956	132	112.6
1957	93	112.6
1958	111	112.6
1959	103	112.6
1960	113	105.6
1961	82	105.6
1962	118	105.6
1963	142	105.6
1964	99	105.6
1965	105	105.6
1966	94	105.6
1967	91	105.6
1968	101	105.6
1969	111	105.6
1970	113	100
1971	98	100
1972	115	100
1973	97	100
1974	76	100
1975	97	100
1976	83	100
1977	119	100
1978	118	100
1979	84	100
1980	125	101.4
1981	103	101.4
1982	101	101.4
1984	99	101.4
1985	90	101.4
1986	97	101.4
1987	106	101.4
1988	111	101.4
1989	81	101.4
1990	81	86.5
1991	105	86.5
1992	71	86.5
1993	89	86.5

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

First to last qualifying date each year at Ozark
Year	First date	Last date
1894	1894-04-16	1894-10-24
1895	1895-03-27	1895-10-16
1896	1896-04-10	1896-10-05
1897	1897-05-19	1897-10-18
1898	1898-04-15	1898-10-08
1899	1899-04-19	1899-10-22
1901	1901-04-27	1901-10-26
1902	1902-04-20	1902-10-25
1903	1903-04-02	1903-10-03
1905	1905-04-08	1905-10-07
1906	1906-04-10	1906-11-10
1909	1909-04-16	1909-11-04
1910	1910-03-06	1910-10-18
1918	1918-05-07	1918-10-08
1921	1921-03-17	1921-10-08
1922	1922-04-05	1922-10-05
1923	1923-04-23	1923-09-30
1924	1924-04-08	1924-10-19
1925	1925-03-06	1925-10-06
1926	1926-05-17	1926-10-19
1928	1928-05-03	1928-10-17
1929	1929-03-25	1929-09-30
1930	1930-04-11	1930-10-11
1931	1931-05-16	1931-10-25
1932	1932-04-21	1932-09-28
1933	1933-03-14	1933-10-01
1934	1934-04-11	1934-10-20
1935	1935-04-18	1935-10-16
1936	1936-04-12	1936-09-21
1937	1937-04-17	1937-11-01
1938	1938-04-18	1938-10-17
1939	1939-03-23	1939-10-26
1940	1940-04-01	1940-10-19
1941	1941-04-12	1941-10-21
1942	1942-05-13	1942-10-13
1943	1943-04-10	1943-10-02
1944	1944-05-12	1944-10-06
1945	1945-05-06	1945-09-27
1946	1946-03-29	1946-10-09
1947	1947-05-13	1947-10-17
1948	1948-04-07	1948-10-03
1949	1949-04-24	1949-09-29
1950	1950-04-23	1950-10-31
1951	1951-04-14	1951-10-04
1952	1952-04-29	1952-10-14
1953	1953-04-22	1953-10-22
1954	1954-04-05	1954-10-11
1955	1955-04-15	1955-11-13
1956	1956-05-05	1956-10-18
1957	1957-05-10	1957-09-20
1958	1958-05-13	1958-10-09
1959	1959-04-30	1959-10-02
1960	1960-04-06	1960-10-06
1961	1961-05-12	1961-10-12
1962	1962-02-12	1962-10-11
1963	1963-03-28	1963-10-27
1964	1964-04-02	1964-09-19
1965	1965-04-20	1965-10-10
1966	1966-03-31	1966-10-14
1967	1967-03-11	1967-10-06
1968	1968-04-17	1968-10-30
1969	1969-04-09	1969-10-11
1970	1970-04-28	1970-10-02
1971	1971-05-26	1971-10-03
1972	1972-04-12	1972-10-16
1973	1973-05-10	1973-10-03
1974	1974-03-07	1974-08-31
1975	1975-05-18	1975-10-21
1976	1976-06-02	1976-10-03
1977	1977-05-07	1977-10-01
1978	1978-05-19	1978-11-04
1979	1979-05-08	1979-10-21
1980	1980-04-21	1980-10-11
1981	1981-04-13	1981-10-06
1982	1982-04-13	1982-10-05
1984	1984-04-25	1984-09-25
1985	1985-05-26	1985-09-23
1986	1986-05-14	1986-10-04
1987	1987-04-18	1987-09-26
1988	1988-04-05	1988-10-18
1989	1989-04-04	1989-10-17
1990	1990-04-30	1990-10-07
1991	1991-05-13	1991-10-19
1992	1992-04-10	1992-10-14
1993	1993-05-31	1993-10-02

Every Fixed Threshold

Fixed thresholds at Ozark
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	85	142	1963	89
35 C (95 F): Days	85	89	1954	37
40 C (104 F): Days	39	40	1936	5
45 C (113 F): Days	4	2	1936	2
90 F (32.2 C): Days	85	113	1953	64
100 F (37.8 C): Days	71	69	1936	11
110 F (43.3 C): Days	8	8	1934	3
120 F (48.9 C): Days	1	1	1936	1
0 C (32 F): Ice days (max	76	18	1929	1
0 C (32 F): Frost days (min	86	103	1989	93
-10 C (14 F): Days with min	84	21	1985	6
-20 C (-4 F): Days with min	10	4	1930	2
20 C (68 F): Tropical nights (min	86	110	1896	59
25 C (77 F): Days with min	55	24	1896	4
10 mm (0.39 in): Days with 10 mm or more rain	84	53	1935	45
25 mm (0.98 in): Days with 25 mm or more rain	84	23	1984	20
50 mm (1.97 in): Days with 50 mm or more rain	80	9	1945	1
100 mm (3.94 in): Days with 100 mm or more rain	21	2	1935	1
10 cm (3.9 in): Days with 10 cm or more snowfall	15	3	1960	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 Ozark 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).

Ozark Threshold Days by Year (USC00035508)

Key Facts for Ozark Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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