Colchester 2 W Threshold Days by Year (USC00061499)

18 fixed thresholds counted per year at Colchester 2 W (USC00061499): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Colchester 2 W Thresholds

Colchester 2 W: nights with a minimum temperature at or below 0 C (32 F) in 69 years, most in 1911 with 165.
Colchester 2 W: nights with a minimum temperature at or below -10 C (14 F) in 69 years, most in 1940 with 49.
Colchester 2 W: nights with a minimum temperature at or above 20 C (68 F) in 69 years, most in 1901 with 18.
Colchester 2 W: days with 10 mm (0.39 in) or more of precipitation in 69 years, most in 1972 with 53.
18 fixed thresholds have at least one qualifying day at Colchester 2 W.

Days at or above 30 C (86 F)

68 years with a qualifying day

Days per year at Colchester 2 W with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 42 in 1944.

Days at or above 30 C (86 F) per year at Colchester 2 W
Year	Days	Decade average
1893	16	15
1894	21	15
1895	12	15
1896	23	15
1897	8	15
1898	18	15
1899	7	15
1900	25	15.9
1901	23	15.9
1903	12	15.9
1905	6	15.9
1906	7	15.9
1907	6	15.9
1908	28	15.9
1909	20	15.9
1910	22	20.6
1911	30	20.6
1912	16	20.6
1913	26	20.6
1914	24	20.6
1915	17	20.6
1916	17	20.6
1917	9	20.6
1918	23	20.6
1919	22	20.6
1920	7	16.8
1921	25	16.8
1922	18	16.8
1923	15	16.8
1924	19	16.8
1925	21	16.8
1926	11	16.8
1927	8	16.8
1928	23	16.8
1929	21	16.8
1930	31	16.9
1932	6	16.9
1933	12	16.9
1934	13	16.9
1935	16	16.9
1936	18	16.9
1937	26	16.9
1939	13	16.9
1940	8	27.3
1942	27	27.3
1943	37	27.3
1944	42	27.3
1945	24	27.3
1946	19	27.3
1947	34	27.3
1951	21	21
1952	30	21
1953	29	21
1954	11	21
1957	25	21
1958	5	21
1959	26	21
1960	6	14.2
1961	20	14.2
1962	7	14.2
1963	19	14.2
1964	13	14.2
1965	17	14.2
1966	20	14.2
1967	10	14.2
1968	16	14.2
1971	13	14
1972	15	14

For each year, a bar from the first to the last day at Colchester 2 W meeting 30 C (86 F).

First to last qualifying date each year at Colchester 2 W
Year	First date	Last date
1893	1893-05-11	1893-08-25
1894	1894-06-11	1894-09-10
1895	1895-05-10	1895-09-23
1896	1896-04-16	1896-09-11
1897	1897-07-06	1897-10-16
1898	1898-06-13	1898-09-05
1899	1899-06-06	1899-08-05
1900	1900-05-14	1900-09-12
1901	1901-06-26	1901-09-15
1903	1903-05-18	1903-09-14
1905	1905-07-10	1905-08-22
1906	1906-05-18	1906-09-19
1907	1907-05-14	1907-09-16
1908	1908-05-24	1908-10-18
1909	1909-06-21	1909-08-26
1910	1910-06-20	1910-07-29
1911	1911-05-22	1911-08-23
1912	1912-06-02	1912-07-16
1913	1913-05-03	1913-08-18
1914	1914-05-26	1914-09-23
1915	1915-04-25	1915-09-17
1916	1916-07-07	1916-09-08
1917	1917-07-02	1917-08-02
1918	1918-05-06	1918-08-23
1919	1919-05-29	1919-09-08
1920	1920-06-11	1920-09-25
1921	1921-05-21	1921-09-03
1922	1922-05-30	1922-10-02
1923	1923-05-26	1923-08-05
1924	1924-06-22	1924-09-01
1925	1925-06-01	1925-08-31
1926	1926-06-30	1926-08-29
1927	1927-04-20	1927-10-02
1928	1928-07-03	1928-08-30
1929	1929-05-29	1929-09-04
1930	1930-05-05	1930-09-26
1932	1932-06-15	1932-09-02
1933	1933-06-08	1933-08-02
1934	1934-06-10	1934-07-26
1935	1935-06-13	1935-08-18
1936	1936-05-08	1936-08-17
1937	1937-05-31	1937-09-04
1939	1939-05-07	1939-08-22
1940	1940-06-04	1940-07-30
1942	1942-05-30	1942-09-17
1943	1943-06-03	1943-09-09
1944	1944-05-05	1944-09-07
1945	1945-06-14	1945-09-09
1946	1946-05-26	1946-10-07
1947	1947-05-13	1947-10-16
1951	1951-05-16	1951-09-13
1952	1952-06-11	1952-09-14
1953	1953-05-12	1953-09-05
1954	1954-06-20	1954-10-14
1957	1957-04-28	1957-09-20
1958	1958-07-01	1958-09-26
1959	1959-05-12	1959-09-09
1960	1960-07-12	1960-09-08
1961	1961-06-13	1961-09-12
1962	1962-06-01	1962-08-08
1963	1963-05-09	1963-08-23
1964	1964-05-23	1964-08-30
1965	1965-05-10	1965-09-22
1966	1966-06-05	1966-09-02
1967	1967-06-02	1967-07-27
1968	1968-06-06	1968-08-25
1971	1971-06-07	1971-09-09
1972	1972-07-02	1972-08-25

Every Fixed Threshold

Fixed thresholds at Colchester 2 W
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	68	42	1944	15
35 C (95 F): Days	25	7	1944	2
90 F (32.2 C): Days	62	24	1944	5
100 F (37.8 C): Days	2	1	1919	1
0 C (32 F): Ice days (max	68	51	1916	30
0 C (32 F): Frost days (min	69	165	1911	149
-10 C (14 F): Days with min	69	49	1940	29
-20 C (-4 F): Days with min	47	13	1968	1
-30 C (-22 F): Days with min	1	1	1943	1
20 C (68 F): Tropical nights (min	69	18	1901	12
25 C (77 F): Days with min	4	1	1914	1
10 mm (0.39 in): Days with 10 mm or more rain	69	53	1972	53
25 mm (0.98 in): Days with 25 mm or more rain	69	30	1972	30
50 mm (1.97 in): Days with 50 mm or more rain	61	9	1901	4
100 mm (3.94 in): Days with 100 mm or more rain	9	1	1895	1
10 cm (3.9 in): Days with 10 cm or more snowfall	24	10	1967	3
25 cm (9.8 in): Days with 25 cm or more snowfall	9	2	1934	2
50 cm (19.7 in): Days with 50 cm or more snowfall	2	1	1958	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.

Download the Data

Data for Colchester 2 W 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).

Colchester 2 W Threshold Days by Year (USC00061499)

Key Facts for Colchester 2 W Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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