Grimsby Threshold Days by Year (CA006133047)

17 fixed thresholds counted per year at Grimsby (CA006133047): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Grimsby Thresholds

Grimsby: days with a maximum temperature at or above 30 C (86 F) in 54 years, most in 1949 with 40.
Grimsby: days with a maximum temperature at or below 0 C (32 F) in 54 years, most in 1978 with 75.
Grimsby: nights with a minimum temperature at or below 0 C (32 F) in 54 years, most in 1925 with 159.
Grimsby: nights with a minimum temperature at or below -10 C (14 F) in 54 years, most in 1912 with 57.
17 fixed thresholds have at least one qualifying day at Grimsby.

Days at or above 30 C (86 F)

54 years with a qualifying day

Days per year at Grimsby with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 40 in 1949.

Days at or above 30 C (86 F) per year at Grimsby
Year	Days	Decade average
1910	25	26
1911	35	26
1912	19	26
1913	33	26
1914	29	26
1915	15	26
1916	36	26
1917	16	26
1922	16	14.6
1923	15	14.6
1924	11	14.6
1925	19	14.6
1927	12	14.6
1938	26	28
1939	30	28
1945	23	30.2
1946	26	30.2
1947	31	30.2
1948	31	30.2
1949	40	30.2
1950	17	23.6
1951	14	23.6
1952	34	23.6
1953	30	23.6
1954	21	23.6
1955	37	23.6
1956	14	23.6
1957	18	23.6
1958	13	23.6
1959	38	23.6
1960	14	19.1
1961	15	19.1
1962	20	19.1
1963	17	19.1
1964	27	19.1
1965	16	19.1
1966	25	19.1
1967	11	19.1
1968	19	19.1
1969	27	19.1
1970	19	16.7
1971	17	16.7
1972	9	16.7
1973	20	16.7
1974	14	16.7
1975	21	16.7
1976	13	16.7
1977	19	16.7
1978	19	16.7
1979	16	16.7
1980	20	17
1981	11	17
1982	7	17
1983	30	17

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

First to last qualifying date each year at Grimsby
Year	First date	Last date
1910	1910-06-19	1910-08-26
1911	1911-05-19	1911-09-02
1912	1912-05-24	1912-09-10
1913	1913-05-03	1913-09-07
1914	1914-05-25	1914-09-22
1915	1915-04-25	1915-09-16
1916	1916-07-02	1916-10-08
1917	1917-07-20	1917-08-20
1922	1922-06-07	1922-09-10
1923	1923-06-01	1923-09-27
1924	1924-07-12	1924-08-31
1925	1925-06-01	1925-09-20
1927	1927-05-22	1927-09-15
1938	1938-06-20	1938-08-29
1939	1939-05-06	1939-09-16
1945	1945-06-14	1945-09-10
1946	1946-06-24	1946-10-07
1947	1947-06-10	1947-09-12
1948	1948-06-04	1948-09-18
1949	1949-05-04	1949-08-27
1950	1950-06-07	1950-08-28
1951	1951-05-16	1951-10-05
1952	1952-06-06	1952-09-13
1953	1953-05-09	1953-09-04
1954	1954-06-10	1954-09-07
1955	1955-05-04	1955-09-19
1956	1956-06-12	1956-08-31
1957	1957-06-15	1957-08-11
1958	1958-06-30	1958-09-15
1959	1959-05-20	1959-09-28
1960	1960-06-04	1960-09-08
1961	1961-06-10	1961-09-13
1962	1962-04-27	1962-09-13
1963	1963-06-06	1963-07-28
1964	1964-05-19	1964-09-10
1965	1965-05-26	1965-09-22
1966	1966-06-06	1966-09-02
1967	1967-06-06	1967-08-17
1968	1968-06-06	1968-08-24
1969	1969-05-28	1969-09-13
1970	1970-05-01	1970-09-24
1971	1971-05-18	1971-09-08
1972	1972-07-11	1972-09-17
1973	1973-06-11	1973-09-05
1974	1974-06-09	1974-08-22
1975	1975-05-21	1975-08-25
1976	1976-04-18	1976-08-22
1977	1977-05-17	1977-09-01
1978	1978-06-18	1978-09-06
1979	1979-05-08	1979-09-01
1980	1980-05-05	1980-08-27
1981	1981-06-15	1981-07-13
1982	1982-07-15	1982-08-16
1983	1983-06-12	1983-09-10

Every Fixed Threshold

Fixed thresholds at Grimsby
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	54	40	1949	30
35 C (95 F): Days	27	15	1916	1
40 C (104 F): Days	1	1	1911	1
90 F (32.2 C): Days	52	26	1916	4
100 F (37.8 C): Days	4	3	1911	1
0 C (32 F): Ice days (max	54	75	1978	46
0 C (32 F): Frost days (min	54	159	1925	109
-10 C (14 F): Days with min	54	57	1912	21
-20 C (-4 F): Days with min	27	9	1917	2
20 C (68 F): Tropical nights (min	54	41	1959	26
25 C (77 F): Days with min	9	3	1955	1
10 mm (0.39 in): Days with 10 mm or more rain	53	38	1954	31
25 mm (0.98 in): Days with 25 mm or more rain	53	11	1913	3
50 mm (1.97 in): Days with 50 mm or more rain	25	3	1968	2
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1950	1
10 cm (3.9 in): Days with 10 cm or more snowfall	49	10	1960	1
25 cm (9.8 in): Days with 25 cm or more snowfall	14	2	1911	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1910.

Download the Data

Data for Grimsby 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).

Grimsby Threshold Days by Year (CA006133047)

Key Facts for Grimsby Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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