Okmulgee Wtr Wks Threshold Days by Year (USC00346670)

19 fixed thresholds counted per year at Okmulgee Wtr Wks (USC00346670): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Okmulgee Wtr Wks Thresholds

Okmulgee Wtr Wks: days with 10 mm (0.39 in) or more of precipitation in 80 years, most in 1959 with 42.
Okmulgee Wtr Wks: days with 25 mm (0.98 in) or more of precipitation in 80 years, most in 1945 with 21.
Okmulgee Wtr Wks: nights with a minimum temperature at or below 0 C (32 F) in 73 years, most in 1996 with 104.
Okmulgee Wtr Wks: nights with a minimum temperature at or above 20 C (68 F) in 73 years, most in 2001 with 92.
19 fixed thresholds have at least one qualifying day at Okmulgee Wtr Wks.

Days at or above 30 C (86 F)

70 years with a qualifying day

Days per year at Okmulgee Wtr Wks with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 138 in 1956.

Days at or above 30 C (86 F) per year at Okmulgee Wtr Wks
Year	Days	Decade average
1912	107	105.3
1915	94	105.3
1916	135	105.3
1917	85	105.3
1921	133	108.7
1922	103	108.7
1923	92	108.7
1924	96	108.7
1925	125	108.7
1926	104	108.7
1927	112	108.7
1928	114	108.7
1929	99	108.7
1930	110	120.3
1931	134	120.3
1932	125	120.3
1933	121	120.3
1934	118	120.3
1935	96	120.3
1936	132	120.3
1937	98	120.3
1938	132	120.3
1939	137	120.3
1940	91	96.4
1941	100	96.4
1942	92	96.4
1943	100	96.4
1944	93	96.4
1945	89	96.4
1946	96	96.4
1947	107	96.4
1948	104	96.4
1949	92	96.4
1950	70	105.8
1951	95	105.8
1952	120	105.8
1953	125	105.8
1955	111	105.8
1956	138	105.8
1957	98	105.8
1958	110	105.8
1959	85	105.8
1960	106	122
1962	126	122
1963	134	122
1970	127	115.7
1971	108	115.7
1972	135	115.7
1973	109	115.7
1974	96	115.7
1975	111	115.7
1976	97	115.7
1977	134	115.7
1978	133	115.7
1979	107	115.7
1980	126	104.2
1981	109	104.2
1982	103	104.2
1987	99	104.2
1988	106	104.2
1989	82	104.2
1991	97	85.7
1992	61	85.7
1993	79	85.7
1994	90	85.7
1995	82	85.7
1996	78	85.7
1998	113	85.7
2000	97	100
2001	103	100

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

First to last qualifying date each year at Okmulgee Wtr Wks
Year	First date	Last date
1912	1912-03-19	1912-10-21
1915	1915-04-15	1915-11-06
1916	1916-03-05	1916-11-02
1917	1917-03-27	1917-10-04
1921	1921-03-17	1921-11-05
1922	1922-05-26	1922-10-28
1923	1923-05-11	1923-09-28
1924	1924-04-15	1924-10-29
1925	1925-03-25	1925-10-06
1926	1926-04-23	1926-10-18
1927	1927-04-03	1927-10-28
1928	1928-03-25	1928-09-30
1929	1929-03-23	1929-09-29
1930	1930-04-09	1930-10-11
1931	1931-05-15	1931-10-26
1932	1932-04-20	1932-10-18
1933	1933-04-09	1933-09-30
1934	1934-04-10	1934-10-21
1935	1935-05-12	1935-10-16
1936	1936-03-29	1936-10-19
1937	1937-04-17	1937-10-06
1938	1938-04-30	1938-10-17
1939	1939-04-25	1939-10-25
1940	1940-03-31	1940-10-19
1941	1941-05-06	1941-10-13
1942	1942-05-27	1942-09-23
1943	1943-04-04	1943-09-25
1944	1944-05-14	1944-10-07
1945	1945-05-14	1945-11-06
1946	1946-03-31	1946-10-08
1947	1947-05-04	1947-10-17
1948	1948-04-07	1948-10-15
1949	1949-04-08	1949-10-07
1950	1950-04-03	1950-10-31
1951	1951-05-21	1951-10-18
1952	1952-03-31	1952-10-14
1953	1953-05-21	1953-10-18
1955	1955-03-10	1955-10-22
1956	1956-03-05	1956-10-18
1957	1957-05-14	1957-09-26
1958	1958-04-23	1958-10-19
1959	1959-04-05	1959-09-28
1960	1960-03-31	1960-10-13
1962	1962-02-12	1962-10-22
1963	1963-03-28	1963-10-27
1970	1970-04-26	1970-10-03
1971	1971-04-12	1971-10-02
1972	1972-04-06	1972-10-18
1973	1973-05-09	1973-10-09
1974	1974-03-06	1974-10-18
1975	1975-04-24	1975-10-21
1976	1976-05-30	1976-10-13
1977	1977-04-12	1977-10-28
1978	1978-04-07	1978-10-22
1979	1979-04-25	1979-10-21
1980	1980-04-07	1980-11-06
1981	1981-04-12	1981-10-06
1982	1982-04-15	1982-10-08
1987	1987-04-17	1987-09-25
1988	1988-04-04	1988-10-17
1989	1989-04-22	1989-10-15
1991	1991-03-06	1991-10-19
1992	1992-04-10	1992-10-15
1993	1993-06-03	1993-09-23
1994	1994-03-19	1994-10-07
1995	1995-03-23	1995-10-17
1996	1996-02-22	1996-09-12
1998	1998-05-13	1998-10-04
2000	2000-04-18	2000-10-04
2001	2001-04-04	2001-10-24

Every Fixed Threshold

Fixed thresholds at Okmulgee Wtr Wks
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	70	138	1956	103
35 C (95 F): Days	69	93	1936	48
40 C (104 F): Days	39	40	1936	1
45 C (113 F): Days	2	3	1936	1
90 F (32.2 C): Days	70	113	1936	78
100 F (37.8 C): Days	57	62	1936	21
110 F (43.3 C): Days	3	6	1936	4
0 C (32 F): Ice days (max	67	20	1978	3
0 C (32 F): Frost days (min	73	104	1996	54
-10 C (14 F): Days with min	72	22	1963	4
-20 C (-4 F): Days with min	15	3	1930	2
20 C (68 F): Tropical nights (min	73	92	2001	92
25 C (77 F): Days with min	58	18	1924	12
10 mm (0.39 in): Days with 10 mm or more rain	80	42	1959	39
25 mm (0.98 in): Days with 25 mm or more rain	80	21	1945	18
50 mm (1.97 in): Days with 50 mm or more rain	72	7	1923	4
100 mm (3.94 in): Days with 100 mm or more rain	22	3	1948	1
10 cm (3.9 in): Days with 10 cm or more snowfall	18	4	1958	1
25 cm (9.8 in): Days with 25 cm or more snowfall	3	1	1937	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1912.

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Data for Okmulgee Wtr Wks 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).

Okmulgee Wtr Wks Threshold Days by Year (USC00346670)

Key Facts for Okmulgee Wtr Wks Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

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