Chaplin Threshold Days by Year (CA004021520)

17 fixed thresholds counted per year at Chaplin (CA004021520): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chaplin Thresholds

Chaplin: days with a maximum temperature at or below 0 C (32 F) in 84 years, most in 1935 with 134.
Chaplin: days with a maximum temperature at or above 30 C (86 F) in 83 years, most in 1894 with 61.
Chaplin: nights with a minimum temperature at or below 0 C (32 F) in 83 years, most in 1907 with 237.
Chaplin: nights with a minimum temperature at or below -10 C (14 F) in 83 years, most in 1907 with 144.
17 fixed thresholds have at least one qualifying day at Chaplin.

Days at or above 30 C (86 F)

83 years with a qualifying day

Days per year at Chaplin with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 61 in 1894.

Days at or above 30 C (86 F) per year at Chaplin
Year	Days	Decade average
1893	31	25.1
1894	61	25.1
1895	26	25.1
1896	11	25.1
1897	20	25.1
1898	16	25.1
1899	11	25.1
1900	10	13.1
1901	21	13.1
1902	15	13.1
1906	16	13.1
1907	3	13.1
1908	17	13.1
1909	10	13.1
1910	23	14.1
1911	6	14.1
1912	7	14.1
1913	11	14.1
1914	25	14.1
1915	5	14.1
1916	1	14.1
1917	16	14.1
1918	20	14.1
1919	27	14.1
1920	22	16.1
1921	22	16.1
1922	23	16.1
1923	11	16.1
1924	8	16.1
1925	19	16.1
1926	16	16.1
1927	6	16.1
1928	7	16.1
1929	27	16.1
1930	22	24.6
1931	27	24.6
1932	16	24.6
1933	29	24.6
1934	26	24.6
1935	12	24.6
1936	34	24.6
1937	37	24.6
1938	22	24.6
1939	21	24.6
1940	21	19
1941	22	19
1942	7	19
1943	11	19
1944	10	19
1945	27	19
1946	23	19
1947	23	19
1948	20	19
1949	26	19
1950	17	14
1951	13	14
1952	16	14
1953	8	14
1954	9	14
1955	15	14
1956	11	14
1957	12	14
1958	22	14
1959	17	14
1960	20	17.8
1961	37	17.8
1962	4	17.8
1963	8	17.8
1964	20	17.8
1965	15	17.8
1966	17	17.8
1967	21	17.8
1973	23	17.1
1974	18	17.1
1975	13	17.1
1976	12	17.1
1977	12	17.1
1978	20	17.1
1979	22	17.1
1980	16	15.5
1981	20	15.5
1982	7	15.5
1983	19	15.5

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

First to last qualifying date each year at Chaplin
Year	First date	Last date
1893	1893-06-06	1893-09-08
1894	1894-05-27	1894-08-30
1895	1895-06-23	1895-09-01
1896	1896-06-29	1896-08-29
1897	1897-05-04	1897-08-24
1898	1898-06-17	1898-08-20
1899	1899-07-10	1899-07-21
1900	1900-05-11	1900-08-02
1901	1901-05-17	1901-08-19
1902	1902-05-27	1902-08-15
1906	1906-07-06	1906-09-06
1907	1907-08-03	1907-08-14
1908	1908-04-20	1908-09-13
1909	1909-06-17	1909-09-28
1910	1910-04-25	1910-10-09
1911	1911-05-05	1911-08-19
1912	1912-06-22	1912-06-28
1913	1913-04-15	1913-09-05
1914	1914-06-01	1914-08-14
1915	1915-08-07	1915-08-30
1916	1916-07-12	1916-07-12
1917	1917-05-15	1917-08-21
1918	1918-06-08	1918-08-26
1919	1919-05-24	1919-08-31
1920	1920-06-30	1920-09-08
1921	1921-06-14	1921-08-31
1922	1922-05-25	1922-09-27
1923	1923-05-26	1923-09-02
1924	1924-07-03	1924-07-26
1925	1925-05-18	1925-08-31
1926	1926-06-26	1926-07-31
1927	1927-06-26	1927-09-06
1928	1928-05-06	1928-08-10
1929	1929-06-09	1929-08-31
1930	1930-06-10	1930-08-25
1931	1931-05-13	1931-09-06
1932	1932-06-15	1932-08-19
1933	1933-05-30	1933-08-20
1934	1934-05-15	1934-08-28
1935	1935-06-28	1935-08-23
1936	1936-05-26	1936-08-30
1937	1937-06-14	1937-08-26
1938	1938-05-27	1938-09-24
1939	1939-04-29	1939-08-28
1940	1940-07-03	1940-09-04
1941	1941-05-23	1941-08-10
1942	1942-05-23	1942-08-19
1943	1943-07-03	1943-08-29
1944	1944-06-30	1944-09-07
1945	1945-06-21	1945-09-02
1946	1946-05-26	1946-09-15
1947	1947-07-02	1947-08-08
1948	1948-05-18	1948-09-22
1949	1949-04-28	1949-08-22
1950	1950-05-27	1950-09-06
1951	1951-05-22	1951-08-05
1952	1952-04-26	1952-09-26
1953	1953-07-13	1953-08-21
1954	1954-05-19	1954-08-30
1955	1955-06-29	1955-09-02
1956	1956-06-01	1956-08-24
1957	1957-07-09	1957-09-07
1958	1958-05-12	1958-09-12
1959	1959-06-03	1959-08-08
1960	1960-05-12	1960-09-04
1961	1961-05-29	1961-08-31
1962	1962-06-25	1962-08-17
1963	1963-07-05	1963-09-09
1964	1964-05-20	1964-08-18
1965	1965-06-10	1965-08-12
1966	1966-05-26	1966-09-11
1967	1967-06-26	1967-09-06
1973	1973-06-13	1973-08-21
1974	1974-06-17	1974-08-06
1975	1975-06-24	1975-07-29
1976	1976-07-04	1976-09-17
1977	1977-05-10	1977-08-24
1978	1978-05-15	1978-09-04
1979	1979-06-12	1979-09-16
1980	1980-04-20	1980-09-06
1981	1981-06-30	1981-09-19
1982	1982-06-22	1982-09-09
1983	1983-07-06	1983-09-01

Every Fixed Threshold

Fixed thresholds at Chaplin
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	83	61	1894	19
35 C (95 F): Days	54	15	1894	7
40 C (104 F): Days	8	2	1893	1
90 F (32.2 C): Days	79	45	1894	9
100 F (37.8 C): Days	26	5	1937	2
0 C (32 F): Ice days (max	84	134	1935	103
0 C (32 F): Frost days (min	83	237	1907	199
-10 C (14 F): Days with min	83	144	1907	88
-20 C (-4 F): Days with min	83	85	1897	30
-30 C (-22 F): Days with min	82	40	1917	10
-40 C (-40 F): Days with min	26	10	1893	1
20 C (68 F): Tropical nights (min	31	6	1898	1
10 mm (0.39 in): Days with 10 mm or more rain	69	22	1916	7
25 mm (0.98 in): Days with 25 mm or more rain	58	5	1954	2
50 mm (1.97 in): Days with 50 mm or more rain	9	2	1974	2
10 cm (3.9 in): Days with 10 cm or more snowfall	55	8	1907	1
25 cm (9.8 in): Days with 25 cm or more snowfall	8	1	1884	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 Chaplin 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).

Chaplin Threshold Days by Year (CA004021520)

Key Facts for Chaplin Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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