Fort Sill Threshold Days by Year (USC00343300)

16 fixed thresholds counted per year at Fort Sill (USC00343300): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Fort Sill Thresholds

Fort Sill: days with a maximum temperature at or above 30 C (86 F) in 29 years, most in 1879 with 136.
Fort Sill: days with a maximum temperature at or above 35 C (95 F) in 29 years, most in 1896 with 86.
Fort Sill: days with a maximum temperature at or above 90 F (32.2 C) in 29 years, most in 1896 with 112.
Fort Sill: days with a maximum temperature at or below 0 C (32 F) in 29 years, most in 1905 with 20.
16 fixed thresholds have at least one qualifying day at Fort Sill.

Days at or above 30 C (86 F)

29 years with a qualifying day

Days per year at Fort Sill with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 136 in 1879.

Days at or above 30 C (86 F) per year at Fort Sill
Year	Days	Decade average
1874	124	117.5
1875	103	117.5
1876	123	117.5
1877	96	117.5
1878	123	117.5
1879	136	117.5
1880	104	102.1
1881	128	102.1
1882	91	102.1
1885	91	102.1
1886	120	102.1
1887	108	102.1
1888	87	102.1
1889	88	102.1
1890	103	111.3
1891	97	111.3
1893	117	111.3
1894	105	111.3
1895	115	111.3
1896	133	111.3
1897	109	111.3
1900	106	113.3
1901	128	113.3
1902	120	113.3
1903	97	113.3
1904	121	113.3
1905	112	113.3
1906	99	113.3
1907	123	113.3

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

First to last qualifying date each year at Fort Sill
Year	First date	Last date
1874	1874-04-26	1874-10-26
1875	1875-03-23	1875-11-02
1876	1876-04-04	1876-11-05
1877	1877-03-26	1877-10-12
1878	1878-04-05	1878-10-15
1879	1879-03-06	1879-10-13
1880	1880-03-25	1880-09-25
1881	1881-04-05	1881-10-08
1882	1882-03-17	1882-09-19
1885	1885-04-15	1885-10-17
1886	1886-03-24	1886-09-22
1887	1887-03-29	1887-10-06
1888	1888-03-31	1888-10-17
1889	1889-04-05	1889-10-11
1890	1890-03-24	1890-11-06
1891	1891-03-02	1891-11-05
1893	1893-03-21	1893-10-11
1894	1894-03-10	1894-10-25
1895	1895-03-27	1895-10-16
1896	1896-03-28	1896-10-05
1897	1897-05-26	1897-10-14
1900	1900-03-11	1900-10-06
1901	1901-04-24	1901-11-01
1902	1902-03-10	1902-10-09
1903	1903-04-11	1903-10-19
1904	1904-02-25	1904-10-16
1905	1905-04-08	1905-11-01
1906	1906-04-11	1906-10-04
1907	1907-03-04	1907-09-30

Every Fixed Threshold

Fixed thresholds at Fort Sill
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	29	136	1879	123
35 C (95 F): Days	29	86	1896	48
40 C (104 F): Days	16	22	1874	1
90 F (32.2 C): Days	29	112	1896	94
100 F (37.8 C): Days	26	49	1896	5
110 F (43.3 C): Days	1	3	1874	3
0 C (32 F): Ice days (max	29	20	1905	3
0 C (32 F): Frost days (min	27	115	1876	85
-10 C (14 F): Days with min	27	21	1886	12
-20 C (-4 F): Days with min	8	3	1875	3
20 C (68 F): Tropical nights (min	27	108	1881	45
25 C (77 F): Days with min	10	30	1881	2
10 mm (0.39 in): Days with 10 mm or more rain	24	37	1877	21
25 mm (0.98 in): Days with 25 mm or more rain	24	19	1902	7
50 mm (1.97 in): Days with 50 mm or more rain	21	7	1902	1
100 mm (3.94 in): Days with 100 mm or more rain	5	1	1875	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1874.

Download the Data

Data for Fort Sill 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).

Fort Sill Threshold Days by Year (USC00343300)

Key Facts for Fort Sill Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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