Atoka Dam Threshold Days by Year (USC00340394)

16 fixed thresholds counted per year at Atoka Dam (USC00340394): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Atoka Dam Thresholds

Atoka Dam: days with 10 mm (0.39 in) or more of precipitation in 24 years, most in 1968 with 50.
Atoka Dam: days with 25 mm (0.98 in) or more of precipitation in 24 years, most in 1968 with 21.
Atoka Dam: days with 50 mm (1.97 in) or more of precipitation in 23 years, most in 1964 with 7.
Atoka Dam: days with a maximum temperature at or above 30 C (86 F) in 18 years, most in 1963 with 137.
16 fixed thresholds have at least one qualifying day at Atoka Dam.

Days at or above 30 C (86 F)

18 years with a qualifying day

Days per year at Atoka Dam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 137 in 1963.

Days at or above 30 C (86 F) per year at Atoka Dam
Year	Days	Decade average
1963	137	101.9
1964	102	101.9
1965	104	101.9
1966	88	101.9
1967	89	101.9
1968	86	101.9
1969	107	101.9
1970	100	103.7
1971	88	103.7
1972	123	103.7
1983	91	105.6
1984	104	105.6
1985	112	105.6
1986	110	105.6
1987	110	105.6
1988	121	105.6
1989	91	105.6
1990	106	106

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

First to last qualifying date each year at Atoka Dam
Year	First date	Last date
1963	1963-03-29	1963-10-23
1964	1964-04-03	1964-10-18
1965	1965-04-11	1965-10-11
1966	1966-04-01	1966-10-14
1967	1967-03-12	1967-10-07
1968	1968-05-15	1968-10-31
1969	1969-04-10	1969-10-12
1970	1970-05-20	1970-09-26
1971	1971-05-26	1971-10-01
1972	1972-04-12	1972-10-18
1983	1983-05-26	1983-10-06
1984	1984-04-25	1984-10-09
1985	1985-03-29	1985-10-14
1986	1986-04-08	1986-10-03
1987	1987-04-18	1987-11-05
1988	1988-04-05	1988-10-18
1989	1989-03-15	1989-10-16
1990	1990-04-30	1990-10-07

Every Fixed Threshold

Fixed thresholds at Atoka Dam
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	18	137	1963	106
35 C (95 F): Days	18	64	1963	55
40 C (104 F): Days	9	8	1986	7
90 F (32.2 C): Days	18	106	1963	85
100 F (37.8 C): Days	17	28	1985	22
110 F (43.3 C): Days	2	1	1984	1
0 C (32 F): Ice days (max	18	16	1963	2
0 C (32 F): Frost days (min	14	81	1963	42
-10 C (14 F): Days with min	13	18	1963	5
20 C (68 F): Tropical nights (min	14	93	1963	82
25 C (77 F): Days with min	12	8	1969	8
10 mm (0.39 in): Days with 10 mm or more rain	24	50	1968	48
25 mm (0.98 in): Days with 25 mm or more rain	24	21	1968	17
50 mm (1.97 in): Days with 50 mm or more rain	23	7	1964	5
100 mm (3.94 in): Days with 100 mm or more rain	6	1	1966	1
10 cm (3.9 in): Days with 10 cm or more snowfall	3	0	n/a	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1963.

Download the Data

Data for Atoka Dam 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).

Atoka Dam Threshold Days by Year (USC00340394)

Key Facts for Atoka Dam Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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