Saint Johns Threshold Days by Year (USC00207280)

18 fixed thresholds counted per year at Saint Johns (USC00207280): 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 81 years, most in 1991 with 38.
Saint Johns: days with 25 mm (0.98 in) or more of precipitation in 81 years, most in 1994 with 15.
Saint Johns: days with a maximum temperature at or above 30 C (86 F) in 77 years, most in 1895 with 65.
Saint Johns: days with a maximum temperature at or below 0 C (32 F) in 77 years, most in 1960 with 78.
18 fixed thresholds have at least one qualifying day at Saint Johns.

Days at or above 30 C (86 F)

77 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 65 in 1895.

Days at or above 30 C (86 F) per year at Saint Johns
Year	Days	Decade average
1895	65	43.2
1896	35	43.2
1897	40	43.2
1898	39	43.2
1899	37	43.2
1900	30	25.4
1901	43	25.4
1902	18	25.4
1903	15	25.4
1905	21	25.4
1940	33	40.3
1943	33	40.3
1944	48	40.3
1945	28	40.3
1946	52	40.3
1947	44	40.3
1948	37	40.3
1949	47	40.3
1950	13	31.1
1951	19	31.1
1952	48	31.1
1953	44	31.1
1954	39	31.1
1955	53	31.1
1956	18	31.1
1957	21	31.1
1958	22	31.1
1959	34	31.1
1960	19	30.9
1961	31	30.9
1962	32	30.9
1963	41	30.9
1964	45	30.9
1965	32	30.9
1966	41	30.9
1967	10	30.9
1968	32	30.9
1969	26	30.9
1970	35	33.9
1971	45	33.9
1972	25	33.9
1973	30	33.9
1974	25	33.9
1975	36	33.9
1976	32	33.9
1977	37	33.9
1978	39	33.9
1979	35	33.9
1980	34	37
1981	20	37
1983	57	37
1986	18	37
1987	50	37
1988	53	37
1989	27	37
1990	21	26.4
1991	36	26.4
1993	20	26.4
1994	19	26.4
1995	36	26.4
1996	14	26.4
1997	16	26.4
1998	41	26.4
1999	35	26.4
2000	8	24
2001	32	24
2002	50	24
2003	20	24
2004	13	24
2005	30	24
2006	18	24
2007	41	24
2008	21	24
2009	7	24
2010	50	51
2011	49	51
2012	54	51

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
1895	1895-05-04	1895-09-22
1896	1896-05-08	1896-09-10
1897	1897-06-13	1897-10-01
1898	1898-06-04	1898-10-03
1899	1899-04-29	1899-09-16
1900	1900-06-24	1900-10-04
1901	1901-06-05	1901-09-07
1902	1902-05-19	1902-08-31
1903	1903-05-17	1903-07-28
1905	1905-05-04	1905-09-29
1940	1940-05-13	1940-09-20
1943	1943-06-03	1943-09-01
1944	1944-05-26	1944-09-03
1945	1945-06-14	1945-09-08
1946	1946-06-16	1946-10-06
1947	1947-06-10	1947-10-15
1948	1948-06-02	1948-09-19
1949	1949-05-04	1949-09-04
1950	1950-06-23	1950-08-24
1951	1951-05-20	1951-10-04
1952	1952-05-05	1952-09-13
1953	1953-06-19	1953-10-03
1954	1954-06-11	1954-09-07
1955	1955-06-04	1955-09-19
1956	1956-06-10	1956-08-31
1957	1957-06-16	1957-08-14
1958	1958-05-18	1958-08-30
1959	1959-06-08	1959-09-09
1960	1960-04-24	1960-09-09
1961	1961-06-10	1961-09-12
1962	1962-05-15	1962-09-13
1963	1963-06-02	1963-10-23
1964	1964-05-22	1964-09-11
1965	1965-05-08	1965-09-20
1966	1966-06-04	1966-09-04
1967	1967-06-12	1967-07-24
1968	1968-06-06	1968-09-05
1969	1969-05-29	1969-09-01
1970	1970-06-10	1970-09-22
1971	1971-05-19	1971-10-02
1972	1972-05-21	1972-08-23
1973	1973-06-10	1973-09-05
1974	1974-06-21	1974-08-27
1975	1975-05-19	1975-10-13
1976	1976-06-08	1976-09-09
1977	1977-05-16	1977-09-01
1978	1978-05-25	1978-09-21
1979	1979-05-08	1979-09-13
1980	1980-05-22	1980-08-30
1981	1981-06-15	1981-08-14
1983	1983-06-11	1983-09-11
1986	1986-04-27	1986-08-17
1987	1987-05-21	1987-08-16
1988	1988-05-09	1988-08-18
1989	1989-06-08	1989-08-06
1990	1990-04-25	1990-09-08
1991	1991-05-13	1991-09-16
1993	1993-05-11	1993-08-31
1994	1994-05-23	1994-09-16
1995	1995-06-17	1995-09-07
1996	1996-05-19	1996-08-23
1997	1997-06-22	1997-07-28
1998	1998-05-15	1998-09-29
1999	1999-05-18	1999-09-28
2000	2000-05-06	2000-09-02
2001	2001-06-14	2001-09-08
2002	2002-04-17	2002-10-02
2003	2003-06-24	2003-09-18
2004	2004-04-19	2004-09-24
2005	2005-06-06	2005-09-22
2006	2006-05-29	2006-08-03
2007	2007-05-24	2007-10-09
2008	2008-06-07	2008-09-03
2009	2009-06-24	2009-08-17
2010	2010-05-24	2010-09-24
2011	2011-05-14	2011-09-13
2012	2012-03-22	2012-09-13

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	77	65	1895	54
35 C (95 F): Days	41	17	1988	12
90 F (32.2 C): Days	75	43	1988	28
100 F (37.8 C): Days	8	3	1947	1
0 C (32 F): Ice days (max	77	78	1960	22
0 C (32 F): Frost days (min	75	171	1972	129
-10 C (14 F): Days with min	75	64	1895	7
-20 C (-4 F): Days with min	63	13	1948	4
-30 C (-22 F): Days with min	1	1	1899	1
20 C (68 F): Tropical nights (min	75	26	2010	16
25 C (77 F): Days with min	8	3	1895	1
10 mm (0.39 in): Days with 10 mm or more rain	81	38	1991	25
25 mm (0.98 in): Days with 25 mm or more rain	81	15	1994	5
50 mm (1.97 in): Days with 50 mm or more rain	44	3	1976	2
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1975	1
10 cm (3.9 in): Days with 10 cm or more snowfall	61	10	2000	4
25 cm (9.8 in): Days with 25 cm or more snowfall	11	2	1999	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1967	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1895.

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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Saint Johns Threshold Days by Year (USC00207280)

Key Facts for Saint Johns Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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