Vernal Threshold Days by Year (USC00429111)

16 fixed thresholds counted per year at Vernal (USC00429111): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Vernal Thresholds

Vernal: nights with a minimum temperature at or below 0 C (32 F) in 109 years, most in 1953 with 240.
Vernal: nights with a minimum temperature at or below -10 C (14 F) in 109 years, most in 1952 with 122.
Vernal: days with a maximum temperature at or above 30 C (86 F) in 108 years, most in 1936 with 92.
Vernal: days with a maximum temperature at or above 90 F (32.2 C) in 108 years, most in 1974 with 75.
16 fixed thresholds have at least one qualifying day at Vernal.

Days at or above 30 C (86 F)

108 years with a qualifying day

Days per year at Vernal with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 92 in 1936.

Days at or above 30 C (86 F) per year at Vernal
Year	Days	Decade average
1895	34	35.3
1896	47	35.3
1897	27	35.3
1899	33	35.3
1900	73	69.3
1901	81	69.3
1902	76	69.3
1906	47	69.3
1910	85	55.3
1911	60	55.3
1912	43	55.3
1915	66	55.3
1916	26	55.3
1917	52	55.3
1924	72	56.8
1925	46	56.8
1928	59	56.8
1929	50	56.8
1930	53	73.3
1931	83	73.3
1932	57	73.3
1933	81	73.3
1934	82	73.3
1935	81	73.3
1936	92	73.3
1937	72	73.3
1938	59	73.3
1940	77	56.7
1941	51	56.7
1942	35	56.7
1944	70	56.7
1945	56	56.7
1948	51	56.7
1950	45	63.1
1951	42	63.1
1952	55	63.1
1953	70	63.1
1954	67	63.1
1955	74	63.1
1956	77	63.1
1957	53	63.1
1958	74	63.1
1959	74	63.1
1960	70	59.2
1961	69	59.2
1962	65	59.2
1963	61	59.2
1964	55	59.2
1965	36	59.2
1966	55	59.2
1967	63	59.2
1968	47	59.2
1969	71	59.2
1970	77	73.9
1971	80	73.9
1972	80	73.9
1973	66	73.9
1974	91	73.9
1975	51	73.9
1976	67	73.9
1977	77	73.9
1978	70	73.9
1979	80	73.9
1980	69	64
1981	69	64
1982	57	64
1983	64	64
1984	67	64
1985	69	64
1986	53	64
1987	51	64
1988	74	64
1989	67	64
1990	67	58.6
1991	61	58.6
1992	42	58.6
1993	38	58.6
1994	78	58.6
1995	58	58.6
1996	82	58.6
1997	48	58.6
1998	56	58.6
1999	56	58.6
2000	81	59
2001	87	59
2002	90	59
2003	53	59
2004	40	59
2005	27	59
2006	52	59
2007	62	59
2009	39	59
2010	46	59.7
2011	45	59.7
2012	59	59.7
2013	56	59.7
2015	52	59.7
2016	61	59.7
2017	72	59.7
2018	77	59.7
2019	69	59.7
2020	83	74.1
2021	73	74.1
2022	78	74.1
2023	54	74.1
2024	75	74.1
2025	80	74.1
2026	76	74.1

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

First to last qualifying date each year at Vernal
Year	First date	Last date
1895	1895-06-13	1895-09-17
1896	1896-05-28	1896-08-27
1897	1897-06-12	1897-08-25
1899	1899-06-11	1899-09-03
1900	1900-05-10	1900-09-12
1901	1901-05-18	1901-09-20
1902	1902-05-25	1902-09-14
1906	1906-06-09	1906-08-23
1910	1910-05-27	1910-09-11
1911	1911-06-11	1911-09-11
1912	1912-06-01	1912-08-28
1915	1915-05-12	1915-09-01
1916	1916-06-08	1916-08-01
1917	1917-06-15	1917-09-09
1924	1924-06-12	1924-09-08
1925	1925-05-23	1925-08-20
1928	1928-06-26	1928-09-06
1929	1929-06-20	1929-08-31
1930	1930-06-08	1930-08-28
1931	1931-05-26	1931-09-13
1932	1932-06-21	1932-09-08
1933	1933-05-25	1933-09-24
1934	1934-05-09	1934-09-03
1935	1935-06-09	1935-09-22
1936	1936-05-13	1936-09-21
1937	1937-05-17	1937-09-22
1938	1938-05-27	1938-09-24
1940	1940-05-31	1940-09-09
1941	1941-05-13	1941-08-27
1942	1942-06-09	1942-09-10
1944	1944-06-24	1944-09-14
1945	1945-06-23	1945-09-07
1948	1948-06-08	1948-09-19
1950	1950-06-21	1950-09-07
1951	1951-05-27	1951-09-01
1952	1952-06-08	1952-09-07
1953	1953-06-10	1953-09-15
1954	1954-05-08	1954-09-10
1955	1955-06-07	1955-09-14
1956	1956-05-18	1956-09-20
1957	1957-06-03	1957-09-08
1958	1958-05-21	1958-09-11
1959	1959-05-13	1959-09-12
1960	1960-05-12	1960-09-12
1961	1961-06-08	1961-08-29
1962	1962-06-10	1962-09-19
1963	1963-06-13	1963-09-12
1964	1964-05-19	1964-08-25
1965	1965-06-22	1965-08-28
1966	1966-06-14	1966-09-23
1967	1967-05-23	1967-09-07
1968	1968-06-03	1968-09-11
1969	1969-05-26	1969-09-08
1970	1970-05-17	1970-09-12
1971	1971-06-14	1971-09-13
1972	1972-05-16	1972-09-18
1973	1973-05-16	1973-09-07
1974	1974-05-08	1974-09-10
1975	1975-06-05	1975-09-07
1976	1976-05-14	1976-09-05
1977	1977-06-01	1977-09-09
1978	1978-05-14	1978-09-06
1979	1979-05-22	1979-10-07
1980	1980-06-09	1980-09-06
1981	1981-05-01	1981-09-19
1982	1982-06-13	1982-09-08
1983	1983-05-26	1983-09-18
1984	1984-05-13	1984-09-10
1985	1985-06-06	1985-09-02
1986	1986-05-31	1986-08-27
1987	1987-06-04	1987-09-03
1988	1988-06-04	1988-09-09
1989	1989-05-07	1989-09-07
1990	1990-05-23	1990-09-15
1991	1991-06-11	1991-09-05
1992	1992-06-10	1992-08-21
1993	1993-05-31	1993-09-11
1994	1994-05-30	1994-09-10
1995	1995-06-12	1995-09-16
1996	1996-05-12	1996-09-10
1997	1997-05-31	1997-08-31
1998	1998-06-02	1998-09-18
1999	1999-06-19	1999-08-30
2000	2000-05-04	2000-09-17
2001	2001-05-23	2001-09-30
2002	2002-05-18	2002-09-05
2003	2003-06-01	2003-09-05
2004	2004-06-04	2004-09-10
2005	2005-05-21	2005-08-30
2006	2006-06-03	2006-08-30
2007	2007-06-16	2007-09-05
2009	2009-06-24	2009-09-11
2010	2010-06-05	2010-09-20
2011	2011-06-24	2011-09-03
2012	2012-06-04	2012-09-11
2013	2013-05-15	2013-09-08
2015	2015-06-02	2015-09-25
2016	2016-06-06	2016-09-02
2017	2017-06-05	2017-09-13
2018	2018-05-26	2018-09-19
2019	2019-06-21	2019-09-07
2020	2020-05-29	2020-09-26
2021	2021-06-03	2021-09-11
2022	2022-05-17	2022-09-14
2023	2023-06-26	2023-09-10
2024	2024-06-06	2024-10-06
2025	2025-05-24	2025-09-11
2026	2026-05-12	2026-08-28

Every Fixed Threshold

Fixed thresholds at Vernal
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	108	92	1936	76
35 C (95 F): Days	89	39	2002	28
40 C (104 F): Days	2	1	2002	1
90 F (32.2 C): Days	108	75	1974	57
100 F (37.8 C): Days	23	12	2002	10
0 C (32 F): Ice days (max	108	92	2013	3
0 C (32 F): Frost days (min	109	240	1953	88
-10 C (14 F): Days with min	109	122	1952	13
-20 C (-4 F): Days with min	92	58	1932	10
-30 C (-22 F): Days with min	22	15	1937	1
20 C (68 F): Tropical nights (min	12	2	1984	4
10 mm (0.39 in): Days with 10 mm or more rain	103	13	1906	5
25 mm (0.98 in): Days with 25 mm or more rain	30	3	2016	1
50 mm (1.97 in): Days with 50 mm or more rain	1	1	2016	1
10 cm (3.9 in): Days with 10 cm or more snowfall	39	4	1936	1
25 cm (9.8 in): Days with 25 cm or more snowfall	5	1	1930	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 Vernal 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).

Vernal Threshold Days by Year (USC00429111)

Key Facts for Vernal Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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