Storrs Threshold Days by Year (USC00068138)

17 fixed thresholds counted per year at Storrs (USC00068138): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Storrs Thresholds

Storrs: days with 10 mm (0.39 in) or more of precipitation in 123 years, most in 1983 with 58.
Storrs: days with 25 mm (0.98 in) or more of precipitation in 123 years, most in 1983 with 23.
Storrs: days with a maximum temperature at or above 30 C (86 F) in 122 years, most in 1944 with 31.
Storrs: days with a maximum temperature at or below 0 C (32 F) in 122 years, most in 1904 with 67.
17 fixed thresholds have at least one qualifying day at Storrs.

Days at or above 30 C (86 F)

122 years with a qualifying day

Days per year at Storrs with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 31 in 1944.

Days at or above 30 C (86 F) per year at Storrs
Year	Days	Decade average
1889	3	3
1890	5	12.6
1891	5	12.6
1892	17	12.6
1893	17	12.6
1894	19	12.6
1895	11	12.6
1896	18	12.6
1897	7	12.6
1898	17	12.6
1899	10	12.6
1900	17	10.8
1901	17	10.8
1902	3	10.8
1903	8	10.8
1904	4	10.8
1905	7	10.8
1906	8	10.8
1907	10	10.8
1908	15	10.8
1909	19	10.8
1910	10	15
1911	18	15
1912	12	15
1914	13	15
1915	12	15
1916	16	15
1917	9	15
1918	18	15
1919	27	15
1922	5	8.5
1923	10	8.5
1924	12	8.5
1925	10	8.5
1926	6	8.5
1927	4	8.5
1928	8	8.5
1929	13	8.5
1930	16	15.7
1931	20	15.7
1932	2	15.7
1933	19	15.7
1934	14	15.7
1935	11	15.7
1936	15	15.7
1937	29	15.7
1938	15	15.7
1939	16	15.7
1940	10	16.2
1941	22	16.2
1942	9	16.2
1943	21	16.2
1944	31	16.2
1945	15	16.2
1946	7	16.2
1947	11	16.2
1948	13	16.2
1949	23	16.2
1950	7	11
1951	3	11
1952	13	11
1953	21	11
1954	2	11
1955	17	11
1956	9	11
1957	16	11
1958	3	11
1959	19	11
1960	3	10.9
1961	11	10.9
1962	3	10.9
1963	19	10.9
1964	15	10.9
1965	13	10.9
1966	14	10.9
1967	6	10.9
1968	15	10.9
1969	10	10.9
1970	16	9.8
1971	7	9.8
1974	7	9.8
1975	9	9.8
1976	8	9.8
1977	12	9.8
1978	9	9.8
1979	10	9.8
1980	18	12.7
1981	8	12.7
1983	28	12.7
1984	9	12.7
1985	2	12.7
1986	3	12.7
1987	19	12.7
1988	20	12.7
1989	7	12.7
1991	11	8.4
1992	2	8.4
1993	12	8.4
1994	9	8.4
1997	8	8.4
2005	23	11
2006	8	11
2007	10	11
2008	8	11
2009	6	11
2010	17	12.9
2011	7	12.9
2012	11	12.9
2013	14	12.9
2014	1	12.9
2015	12	12.9
2016	20	12.9
2017	11	12.9
2018	23	12.9
2019	13	12.9
2020	23	16.6
2021	17	16.6
2022	16	16.6
2023	12	16.6
2024	13	16.6
2025	23	16.6
2026	12	16.6

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

First to last qualifying date each year at Storrs
Year	First date	Last date
1889	1889-06-29	1889-07-08
1890	1890-07-01	1890-07-31
1891	1891-06-15	1891-08-12
1892	1892-06-13	1892-08-18
1893	1893-06-05	1893-08-26
1894	1894-06-11	1894-09-10
1895	1895-05-10	1895-09-23
1896	1896-05-09	1896-09-11
1897	1897-07-05	1897-10-16
1898	1898-06-12	1898-09-04
1899	1899-06-05	1899-08-21
1900	1900-05-14	1900-09-06
1901	1901-06-26	1901-09-07
1902	1902-05-23	1902-08-22
1903	1903-05-18	1903-09-14
1904	1904-06-25	1904-07-19
1905	1905-07-09	1905-08-22
1906	1906-05-18	1906-09-19
1907	1907-06-18	1907-08-12
1908	1908-06-08	1908-10-18
1909	1909-06-22	1909-08-26
1910	1910-06-21	1910-07-26
1911	1911-05-22	1911-08-23
1912	1912-06-02	1912-08-13
1914	1914-05-26	1914-09-24
1915	1915-04-25	1915-09-17
1916	1916-07-07	1916-08-22
1917	1917-06-14	1917-08-02
1918	1918-05-06	1918-08-23
1919	1919-05-29	1919-10-29
1922	1922-06-09	1922-08-17
1923	1923-06-05	1923-08-05
1924	1924-07-07	1924-09-01
1925	1925-06-01	1925-08-18
1926	1926-07-09	1926-08-29
1927	1927-07-13	1927-10-02
1928	1928-07-08	1928-08-30
1929	1929-05-28	1929-09-04
1930	1930-05-06	1930-08-07
1931	1931-05-06	1931-09-22
1932	1932-09-02	1932-09-03
1933	1933-05-27	1933-08-03
1934	1934-06-21	1934-08-11
1935	1935-06-29	1935-08-22
1936	1936-05-08	1936-09-08
1937	1937-05-31	1937-09-04
1938	1938-04-28	1938-08-16
1939	1939-05-07	1939-09-16
1940	1940-06-04	1940-08-10
1941	1941-04-15	1941-09-17
1942	1942-06-13	1942-09-17
1943	1943-06-03	1943-09-07
1944	1944-05-05	1944-09-02
1945	1945-06-14	1945-09-08
1946	1946-06-08	1946-07-30
1947	1947-06-11	1947-08-26
1948	1948-06-24	1948-09-13
1949	1949-05-05	1949-08-28
1950	1950-06-08	1950-07-31
1951	1951-07-16	1951-07-31
1952	1952-06-26	1952-08-27
1953	1953-05-11	1953-09-04
1954	1954-07-14	1954-07-31
1955	1955-07-02	1955-08-21
1956	1956-05-31	1956-08-18
1957	1957-06-15	1957-09-13
1958	1958-07-01	1958-07-16
1959	1959-05-12	1959-08-28
1960	1960-07-12	1960-08-29
1961	1961-06-13	1961-09-12
1962	1962-04-27	1962-07-08
1963	1963-05-09	1963-07-29
1964	1964-05-23	1964-07-28
1965	1965-05-10	1965-08-14
1966	1966-06-05	1966-09-02
1967	1967-06-10	1967-07-10
1968	1968-06-06	1968-08-26
1969	1969-05-30	1969-09-03
1970	1970-05-11	1970-09-24
1971	1971-06-08	1971-08-11
1974	1974-05-18	1974-07-15
1975	1975-05-21	1975-08-06
1976	1976-04-18	1976-08-23
1977	1977-05-18	1977-09-03
1978	1978-05-21	1978-08-21
1979	1979-05-10	1979-08-06
1980	1980-05-24	1980-09-23
1981	1981-06-17	1981-07-22
1983	1983-06-13	1983-09-21
1984	1984-06-08	1984-08-08
1985	1985-08-15	1985-08-16
1986	1986-05-31	1986-07-08
1987	1987-05-30	1987-08-19
1988	1988-06-14	1988-08-16
1989	1989-07-08	1989-09-11
1991	1991-06-30	1991-09-17
1992	1992-05-23	1992-05-24
1993	1993-05-12	1993-09-04
1994	1994-06-19	1994-07-22
1997	1997-06-11	1997-08-17
2005	2005-06-06	2005-09-14
2006	2006-06-19	2006-08-04
2007	2007-05-26	2007-08-09
2008	2008-06-08	2008-07-21
2009	2009-04-29	2009-08-22
2010	2010-04-08	2010-09-03
2011	2011-06-09	2011-07-24
2012	2012-05-30	2012-08-05
2013	2013-05-31	2013-07-21
2014	2014-09-03	2014-09-03
2015	2015-07-21	2015-09-09
2016	2016-05-27	2016-09-10
2017	2017-05-18	2017-09-26
2018	2018-05-04	2018-09-17
2019	2019-06-29	2019-08-20
2020	2020-06-22	2020-08-25
2021	2021-06-07	2021-08-28
2022	2022-05-22	2022-08-21
2023	2023-04-14	2023-09-08
2024	2024-06-20	2024-08-04
2025	2025-06-06	2025-08-18
2026	2026-05-20	2026-08-10

Every Fixed Threshold

Fixed thresholds at Storrs
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	122	31	1944	12
35 C (95 F): Days	26	6	1911	1
90 F (32.2 C): Days	100	14	1944	6
100 F (37.8 C): Days	1	1	1919	1
0 C (32 F): Ice days (max	122	67	1904	30
0 C (32 F): Frost days (min	121	168	1926	84
-10 C (14 F): Days with min	121	65	1904	21
-20 C (-4 F): Days with min	82	9	1907	2
20 C (68 F): Tropical nights (min	116	32	1989	13
25 C (77 F): Days with min	5	2	1989	1
10 mm (0.39 in): Days with 10 mm or more rain	123	58	1983	33
25 mm (0.98 in): Days with 25 mm or more rain	123	23	1983	10
50 mm (1.97 in): Days with 50 mm or more rain	109	7	1937	1
100 mm (3.94 in): Days with 100 mm or more rain	21	1	1895	1
10 cm (3.9 in): Days with 10 cm or more snowfall	77	8	1956	3
25 cm (9.8 in): Days with 25 cm or more snowfall	24	2	1945	2
50 cm (19.7 in): Days with 50 cm or more snowfall	2	1	1927	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1889.

Download the Data

Data for Storrs 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).

Storrs Threshold Days by Year (USC00068138)

Key Facts for Storrs Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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