St Augustine Threshold Days by Year (USC00087812)

13 fixed thresholds counted per year at St Augustine (USC00087812): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for St Augustine Thresholds

St Augustine: days with a maximum temperature at or above 30 C (86 F) in 70 years, most in 1911 with 166.
St Augustine: days with a maximum temperature at or above 90 F (32.2 C) in 70 years, most in 1911 with 127.
St Augustine: nights with a minimum temperature at or above 20 C (68 F) in 69 years, most in 1902 with 167.
St Augustine: days with 10 mm (0.39 in) or more of precipitation in 68 years, most in 1947 with 52.
13 fixed thresholds have at least one qualifying day at St Augustine.

Days at or above 30 C (86 F)

70 years with a qualifying day

Days per year at St Augustine with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 166 in 1911.

Days at or above 30 C (86 F) per year at St Augustine
Year	Days	Decade average
1893	78	69.7
1894	60	69.7
1895	71	69.7
1901	103	123.3
1902	90	123.3
1903	112	123.3
1904	140	123.3
1905	147	123.3
1906	128	123.3
1907	134	123.3
1908	132	123.3
1909	124	123.3
1910	102	123.3
1911	166	123.3
1912	138	123.3
1913	132	123.3
1914	125	123.3
1915	151	123.3
1916	104	123.3
1917	110	123.3
1918	90	123.3
1919	115	123.3
1920	107	113.5
1921	122	113.5
1922	109	113.5
1923	94	113.5
1924	99	113.5
1925	129	113.5
1927	129	113.5
1929	119	113.5
1931	104	124.1
1932	88	124.1
1933	95	124.1
1934	129	124.1
1935	131	124.1
1936	154	124.1
1937	135	124.1
1938	139	124.1
1939	142	124.1
1940	119	123.2
1941	138	123.2
1942	129	123.2
1943	125	123.2
1944	137	123.2
1945	133	123.2
1946	106	123.2
1947	109	123.2
1948	113	123.2
1950	131	136.5
1951	140	136.5
1952	138	136.5
1953	136	136.5
1954	142	136.5
1955	154	136.5
1956	132	136.5
1957	127	136.5
1958	123	136.5
1959	142	136.5
1960	129	117.2
1961	127	117.2
1962	149	117.2
1963	133	117.2
1964	73	117.2
1965	118	117.2
1966	94	117.2
1967	124	117.2
1968	118	117.2
1969	107	117.2
1970	124	132
1971	140	132

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

First to last qualifying date each year at St Augustine
Year	First date	Last date
1893	1893-05-14	1893-10-04
1894	1894-04-09	1894-09-30
1895	1895-05-26	1895-10-08
1901	1901-04-04	1901-10-01
1902	1902-05-03	1902-10-18
1903	1903-04-20	1903-11-17
1904	1904-04-02	1904-10-22
1905	1905-04-27	1905-10-20
1906	1906-04-12	1906-11-10
1907	1907-03-14	1907-10-08
1908	1908-03-16	1908-09-28
1909	1909-03-14	1909-10-19
1910	1910-05-04	1910-10-22
1911	1911-03-02	1911-12-24
1912	1912-02-26	1912-12-08
1913	1913-02-27	1913-10-24
1914	1914-04-02	1914-10-13
1915	1915-04-17	1915-11-13
1916	1916-03-02	1916-10-20
1917	1917-02-18	1917-10-01
1918	1918-04-03	1918-11-16
1919	1919-04-24	1919-11-01
1920	1920-03-28	1920-10-05
1921	1921-03-16	1921-10-20
1922	1922-04-06	1922-12-10
1923	1923-03-11	1923-10-19
1924	1924-03-29	1924-09-16
1925	1925-01-10	1925-11-08
1927	1927-04-01	1927-12-01
1929	1929-03-15	1929-10-01
1931	1931-05-07	1931-10-28
1932	1932-02-08	1932-11-07
1933	1933-05-05	1933-10-20
1934	1934-04-07	1934-10-31
1935	1935-02-14	1935-10-02
1936	1936-03-25	1936-10-24
1937	1937-03-20	1937-10-09
1938	1938-03-06	1938-11-19
1939	1939-02-11	1939-10-28
1940	1940-04-02	1940-10-30
1941	1941-04-21	1941-11-01
1942	1942-03-21	1942-10-23
1943	1943-04-09	1943-10-22
1944	1944-03-19	1944-10-08
1945	1945-03-06	1945-10-07
1946	1946-04-03	1946-10-12
1947	1947-04-30	1947-09-21
1948	1948-04-01	1948-11-29
1950	1950-04-26	1950-10-23
1951	1951-03-19	1951-10-08
1952	1952-03-21	1952-10-15
1953	1953-02-21	1953-10-24
1954	1954-03-25	1954-10-27
1955	1955-03-12	1955-11-15
1956	1956-02-19	1956-10-03
1957	1957-01-29	1957-11-23
1958	1958-04-06	1958-10-10
1959	1959-02-11	1959-10-24
1960	1960-03-30	1960-10-16
1961	1961-02-28	1961-11-01
1962	1962-01-27	1962-10-21
1963	1963-03-12	1963-10-28
1964	1964-03-03	1964-10-04
1965	1965-02-12	1965-10-10
1966	1966-04-13	1966-10-19
1967	1967-03-06	1967-11-25
1968	1968-04-10	1968-10-19
1969	1969-04-06	1969-10-21
1970	1970-03-31	1970-10-25
1971	1971-03-01	1971-10-23

Every Fixed Threshold

Fixed thresholds at St Augustine
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	70	166	1911	140
35 C (95 F): Days	66	37	1911	3
40 C (104 F): Days	1	1	1914	1
90 F (32.2 C): Days	70	127	1911	60
100 F (37.8 C): Days	14	5	1911	1
0 C (32 F): Frost days (min	67	22	1960	14
20 C (68 F): Tropical nights (min	69	167	1902	118
25 C (77 F): Days with min	54	16	1902	2
10 mm (0.39 in): Days with 10 mm or more rain	68	52	1947	44
25 mm (0.98 in): Days with 25 mm or more rain	68	25	1953	23
50 mm (1.97 in): Days with 50 mm or more rain	62	12	1953	8
100 mm (3.94 in): Days with 100 mm or more rain	29	2	1920	4
200 mm (7.87 in): Days with 200 mm or more rain	4	2	1920	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1893.

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Data for St Augustine 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).

St Augustine Threshold Days by Year (USC00087812)

Key Facts for St Augustine Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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