Sulphur Platt Nat'l Pk Threshold Days by Year

20 fixed thresholds counted per year at Sulphur Platt Nat'l Pk (USC00348587): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sulphur Platt Nat'l Pk Thresholds

Sulphur Platt Nat'l Pk: days with a maximum temperature at or above 30 C (86 F) in 59 years, most in 1956 with 159.
Sulphur Platt Nat'l Pk: days with a maximum temperature at or above 35 C (95 F) in 59 years, most in 1956 with 93.
Sulphur Platt Nat'l Pk: days with a maximum temperature at or above 90 F (32.2 C) in 59 years, most in 1939 with 130.
Sulphur Platt Nat'l Pk: nights with a minimum temperature at or below 0 C (32 F) in 59 years, most in 1960 with 92.
20 fixed thresholds have at least one qualifying day at Sulphur Platt Nat'l Pk.

Days at or above 30 C (86 F)

59 years with a qualifying day

Days per year at Sulphur Platt Nat'l Pk with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 159 in 1956.

Days at or above 30 C (86 F) per year at Sulphur Platt Nat'l Pk
Year	Days	Decade average
1919	92	92
1920	110	123.1
1921	134	123.1
1922	126	123.1
1923	111	123.1
1924	128	123.1
1925	137	123.1
1926	115	123.1
1927	131	123.1
1928	122	123.1
1929	117	123.1
1930	111	125.6
1931	135	125.6
1932	120	125.6
1933	122	125.6
1934	128	125.6
1935	92	125.6
1936	125	125.6
1937	128	125.6
1938	143	125.6
1939	152	125.6
1940	112	114.6
1941	110	114.6
1942	108	114.6
1943	130	114.6
1944	116	114.6
1945	110	114.6
1946	107	114.6
1947	124	114.6
1948	121	114.6
1949	108	114.6
1950	88	126.3
1951	120	126.3
1952	138	126.3
1953	127	126.3
1954	137	126.3
1955	137	126.3
1956	159	126.3
1957	98	126.3
1958	126	126.3
1959	133	126.3
1960	117	113
1961	98	113
1962	122	113
1963	149	113
1964	108	113
1965	108	113
1966	110	113
1967	108	113
1968	96	113
1969	114	113
1970	111	114.1
1971	105	114.1
1972	134	114.1
1973	105	114.1
1974	108	114.1
1975	111	114.1
1976	112	114.1
1977	127	114.1

For each year, a bar from the first to the last day at Sulphur Platt Nat'l Pk meeting 30 C (86 F).

First to last qualifying date each year at Sulphur Platt Nat'l Pk
Year	First date	Last date
1919	1919-06-06	1919-10-30
1920	1920-04-16	1920-10-05
1921	1921-03-17	1921-11-04
1922	1922-04-11	1922-10-26
1923	1923-04-08	1923-10-01
1924	1924-04-09	1924-11-05
1925	1925-03-25	1925-10-06
1926	1926-05-17	1926-10-20
1927	1927-04-03	1927-10-27
1928	1928-03-12	1928-10-15
1929	1929-03-06	1929-10-18
1930	1930-04-04	1930-10-09
1931	1931-05-14	1931-10-11
1932	1932-03-20	1932-10-23
1933	1933-04-09	1933-09-30
1934	1934-04-10	1934-11-07
1935	1935-03-26	1935-10-16
1936	1936-03-29	1936-09-24
1937	1937-04-16	1937-10-30
1938	1938-03-04	1938-10-31
1939	1939-04-09	1939-11-08
1940	1940-03-31	1940-10-24
1941	1941-04-17	1941-10-21
1942	1942-04-04	1942-10-12
1943	1943-04-02	1943-09-26
1944	1944-05-13	1944-11-01
1945	1945-05-14	1945-11-06
1946	1946-03-30	1946-10-30
1947	1947-05-03	1947-10-23
1948	1948-04-07	1948-10-16
1949	1949-04-08	1949-10-08
1950	1950-04-03	1950-10-31
1951	1951-03-22	1951-12-30
1952	1952-03-31	1952-10-27
1953	1953-05-09	1953-10-12
1954	1954-03-10	1954-10-13
1955	1955-03-10	1955-12-24
1956	1956-02-24	1956-10-12
1957	1957-05-14	1957-10-04
1958	1958-04-04	1958-10-24
1959	1959-03-14	1959-10-10
1960	1960-03-31	1960-10-03
1961	1961-05-06	1961-10-12
1962	1962-02-13	1962-10-22
1963	1963-03-28	1963-10-27
1964	1964-04-12	1964-10-17
1965	1965-04-10	1965-10-11
1966	1966-03-22	1966-10-13
1967	1967-03-11	1967-10-05
1968	1968-04-17	1968-10-13
1969	1969-04-22	1969-10-11
1970	1970-04-27	1970-10-03
1971	1971-05-10	1971-09-29
1972	1972-03-22	1972-10-18
1973	1973-05-10	1973-10-02
1974	1974-03-18	1974-09-11
1975	1975-04-24	1975-10-12
1976	1976-03-01	1976-10-12
1977	1977-05-08	1977-10-31

Every Fixed Threshold

Fixed thresholds at Sulphur Platt Nat'l Pk
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	59	159	1956	127
35 C (95 F): Days	59	93	1956	63
40 C (104 F): Days	39	28	1954	3
45 C (113 F): Days	1	2	1936	2
90 F (32.2 C): Days	59	130	1939	110
100 F (37.8 C): Days	55	60	1956	12
110 F (43.3 C): Days	6	4	1954	1
0 C (32 F): Ice days (max	51	12	1949	4
0 C (32 F): Frost days (min	59	92	1960	73
-10 C (14 F): Days with min	58	18	1963	13
-20 C (-4 F): Days with min	8	2	1930	1
20 C (68 F): Tropical nights (min	59	106	1925	99
25 C (77 F): Days with min	51	26	1934	5
10 mm (0.39 in): Days with 10 mm or more rain	57	44	1945	23
25 mm (0.98 in): Days with 25 mm or more rain	57	25	1945	9
50 mm (1.97 in): Days with 50 mm or more rain	52	9	1946	1
100 mm (3.94 in): Days with 100 mm or more rain	18	2	1957	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1970	1
10 cm (3.9 in): Days with 10 cm or more snowfall	16	2	1942	1
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1942	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1919.

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Data for Sulphur Platt Nat'l Pk 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Sulphur Platt Nat'l Pk Threshold Days by Year

Key Facts for Sulphur Platt Nat'l Pk Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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