Saint Johns Threshold Days by Year (USC00027435)

17 fixed thresholds counted per year at Saint Johns (USC00027435): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Saint Johns Thresholds

Saint Johns: days with 10 mm (0.39 in) or more of precipitation in 106 years, most in 1986 with 19.
Saint Johns: days with a maximum temperature at or above 30 C (86 F) in 103 years, most in 2024 with 119.
Saint Johns: days with a maximum temperature at or above 90 F (32.2 C) in 103 years, most in 2024 with 84.
Saint Johns: days with a maximum temperature at or above 35 C (95 F) in 100 years, most in 2020 with 44.
17 fixed thresholds have at least one qualifying day at Saint Johns.

Days at or above 30 C (86 F)

103 years with a qualifying day

Days per year at Saint Johns with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 119 in 2024.

Days at or above 30 C (86 F) per year at Saint Johns
Year	Days	Decade average
1911	81	62.5
1913	60	62.5
1915	56	62.5
1916	53	62.5
1920	82	77.7
1921	97	77.7
1922	96	77.7
1923	88	77.7
1925	69	77.7
1926	72	77.7
1927	63	77.7
1928	80	77.7
1929	52	77.7
1930	75	86.7
1931	82	86.7
1932	76	86.7
1933	67	86.7
1934	105	86.7
1935	101	86.7
1936	87	86.7
1937	101	86.7
1938	86	86.7
1939	87	86.7
1940	89	91.4
1941	70	91.4
1942	104	91.4
1943	110	91.4
1944	103	91.4
1945	98	91.4
1946	104	91.4
1947	63	91.4
1948	97	91.4
1949	76	91.4
1950	77	88.2
1951	92	88.2
1952	90	88.2
1953	105	88.2
1954	82	88.2
1955	82	88.2
1956	101	88.2
1957	73	88.2
1959	92	88.2
1960	100	87.1
1961	82	87.1
1962	99	87.1
1963	78	87.1
1964	94	87.1
1965	62	87.1
1966	92	87.1
1967	73	87.1
1968	77	87.1
1969	114	87.1
1970	94	77.7
1971	92	77.7
1972	77	77.7
1973	83	77.7
1974	101	77.7
1975	76	77.7
1976	79	77.7
1977	54	77.7
1978	65	77.7
1979	56	77.7
1980	56	68.4
1981	78	68.4
1982	63	68.4
1983	93	68.4
1984	60	68.4
1985	76	68.4
1986	63	68.4
1987	55	68.4
1988	63	68.4
1989	77	68.4
1990	74	76.9
1991	71	76.9
1992	58	76.9
1993	79	76.9
1994	91	76.9
1995	78	76.9
1996	87	76.9
1997	68	76.9
1998	86	76.9
2000	96	85.6
2001	94	85.6
2002	93	85.6
2003	100	85.6
2004	71	85.6
2005	75	85.6
2007	88	85.6
2008	75	85.6
2009	78	85.6
2010	83	90.2
2011	88	90.2
2016	82	90.2
2017	91	90.2
2018	110	90.2
2019	87	90.2
2020	117	106.7
2021	105	106.7
2022	96	106.7
2023	98	106.7
2024	119	106.7
2025	105	106.7
2026	107	106.7

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

First to last qualifying date each year at Saint Johns
Year	First date	Last date
1911	1911-05-04	1911-09-24
1913	1913-05-22	1913-09-19
1915	1915-05-12	1915-09-11
1916	1916-05-09	1916-09-07
1920	1920-05-18	1920-10-04
1921	1921-05-27	1921-10-17
1922	1922-05-23	1922-10-02
1923	1923-05-04	1923-10-03
1925	1925-04-15	1925-10-03
1926	1926-05-22	1926-09-24
1927	1927-05-01	1927-09-15
1928	1928-05-07	1928-10-07
1929	1929-05-10	1929-09-20
1930	1930-05-20	1930-09-19
1931	1931-05-24	1931-10-08
1932	1932-06-11	1932-10-10
1933	1933-06-08	1933-09-30
1934	1934-05-07	1934-10-08
1935	1935-05-27	1935-09-21
1936	1936-05-03	1936-09-16
1937	1937-04-15	1937-10-07
1938	1938-04-23	1938-09-28
1939	1939-05-18	1939-09-23
1940	1940-05-02	1940-09-10
1941	1941-05-08	1941-09-11
1942	1942-05-21	1942-09-28
1943	1943-04-04	1943-09-21
1944	1944-05-06	1944-10-07
1945	1945-04-30	1945-09-17
1946	1946-04-12	1946-09-27
1947	1947-05-02	1947-10-04
1948	1948-04-16	1948-09-24
1949	1949-04-24	1949-09-28
1950	1950-05-31	1950-10-29
1951	1951-05-05	1951-09-27
1952	1952-05-03	1952-10-02
1953	1953-05-22	1953-10-02
1954	1954-05-07	1954-10-01
1955	1955-05-29	1955-09-28
1956	1956-05-03	1956-09-27
1957	1957-05-27	1957-10-01
1959	1959-05-12	1959-09-19
1960	1960-05-11	1960-09-28
1961	1961-05-19	1961-09-28
1962	1962-04-14	1962-09-21
1963	1963-05-06	1963-10-02
1964	1964-05-13	1964-10-05
1965	1965-04-20	1965-10-09
1966	1966-05-20	1966-09-25
1967	1967-05-16	1967-10-01
1968	1968-05-27	1968-09-12
1969	1969-04-21	1969-10-01
1970	1970-05-16	1970-09-18
1971	1971-05-02	1971-09-16
1972	1972-05-24	1972-10-02
1973	1973-05-11	1973-09-22
1974	1974-05-08	1974-10-02
1975	1975-05-10	1975-10-06
1976	1976-05-12	1976-09-21
1977	1977-05-30	1977-09-08
1978	1978-05-13	1978-09-04
1979	1979-07-02	1979-10-06
1980	1980-05-21	1980-10-01
1981	1981-06-03	1981-09-27
1982	1982-05-31	1982-10-23
1983	1983-05-25	1983-09-28
1984	1984-05-10	1984-09-16
1985	1985-05-25	1985-09-14
1986	1986-05-03	1986-09-06
1987	1987-06-02	1987-10-07
1988	1988-05-14	1988-09-17
1989	1989-04-19	1989-09-30
1990	1990-05-22	1990-09-14
1991	1991-05-20	1991-09-03
1992	1992-04-27	1992-09-18
1993	1993-05-26	1993-09-25
1994	1994-05-28	1994-09-13
1995	1995-06-01	1995-10-12
1996	1996-04-27	1996-09-01
1997	1997-05-05	1997-09-11
1998	1998-05-28	1998-10-13
2000	2000-04-27	2000-09-18
2001	2001-05-09	2001-09-30
2002	2002-05-14	2002-09-06
2003	2003-05-17	2003-10-01
2004	2004-06-01	2004-09-16
2005	2005-05-20	2005-09-27
2007	2007-05-12	2007-09-15
2008	2008-05-19	2008-09-08
2009	2009-05-07	2009-09-29
2010	2010-05-26	2010-10-01
2011	2011-05-27	2011-09-29
2016	2016-05-13	2016-09-22
2017	2017-05-05	2017-10-04
2018	2018-05-06	2018-09-29
2019	2019-05-31	2019-09-18
2020	2020-04-26	2020-10-07
2021	2021-05-06	2021-09-18
2022	2022-04-18	2022-09-19
2023	2023-05-22	2023-10-22
2024	2024-05-27	2024-10-27
2025	2025-04-11	2025-10-03
2026	2026-03-20	2026-09-14

Every Fixed Threshold

Fixed thresholds at Saint Johns
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	103	119	2024	107
35 C (95 F): Days	100	44	2020	38
40 C (104 F): Days	2	2	1923	2
90 F (32.2 C): Days	103	84	2024	82
100 F (37.8 C): Days	50	13	2021	6
0 C (32 F): Ice days (max	81	19	1949	1
0 C (32 F): Frost days (min	99	201	1933	58
-10 C (14 F): Days with min	99	68	1945	4
-20 C (-4 F): Days with min	44	16	1937	1
-30 C (-22 F): Days with min	3	3	1971	2
20 C (68 F): Tropical nights (min	38	8	2023	17
25 C (77 F): Days with min	1	1	2017	1
10 mm (0.39 in): Days with 10 mm or more rain	106	19	1986	8
25 mm (0.98 in): Days with 25 mm or more rain	66	5	1984	3
50 mm (1.97 in): Days with 50 mm or more rain	6	1	1913	1
10 cm (3.9 in): Days with 10 cm or more snowfall	71	8	1975	1
25 cm (9.8 in): Days with 25 cm or more snowfall	6	1	1921	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1911.

Download the Data

Data for Saint Johns 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Saint Johns Threshold Days by Year (USC00027435)

Key Facts for Saint Johns Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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