Hancock Threshold Days by Year (USC00184030)

17 fixed thresholds counted per year at Hancock (USC00184030): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hancock Thresholds

Hancock: days with 10 mm (0.39 in) or more of precipitation in 48 years, most in 1952 with 43.
Hancock: days with 25 mm (0.98 in) or more of precipitation in 48 years, most in 1970 with 13.
Hancock: days with a maximum temperature at or above 30 C (86 F) in 47 years, most in 1991 with 81.
Hancock: days with a maximum temperature at or above 90 F (32.2 C) in 47 years, most in 1988 with 47.
17 fixed thresholds have at least one qualifying day at Hancock.

Days at or above 30 C (86 F)

47 years with a qualifying day

Days per year at Hancock with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 81 in 1991.

Days at or above 30 C (86 F) per year at Hancock
Year	Days	Decade average
1947	55	59
1949	63	59
1950	37	58.9
1951	64	58.9
1952	63	58.9
1953	74	58.9
1954	60	58.9
1955	58	58.9
1956	42	58.9
1957	66	58.9
1958	51	58.9
1959	74	58.9
1960	49	54.8
1961	62	54.8
1962	58	54.8
1963	54	54.8
1964	64	54.8
1965	69	54.8
1966	66	54.8
1967	26	54.8
1968	51	54.8
1969	49	54.8
1970	58	33.3
1971	31	33.3
1972	27	33.3
1973	40	33.3
1974	27	33.3
1975	28	33.3
1976	31	33.3
1977	44	33.3
1978	28	33.3
1979	19	33.3
1980	45	51.5
1981	27	51.5
1982	32	51.5
1983	76	51.5
1984	44	51.5
1985	40	51.5
1986	73	51.5
1987	73	51.5
1988	67	51.5
1989	38	51.5
1990	54	56.8
1991	81	56.8
1992	31	56.8
1993	62	56.8
1995	56	56.8

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

First to last qualifying date each year at Hancock
Year	First date	Last date
1947	1947-05-13	1947-10-24
1949	1949-03-28	1949-10-13
1950	1950-06-07	1950-11-02
1951	1951-05-03	1951-10-06
1952	1952-04-23	1952-09-15
1953	1953-05-11	1953-10-20
1954	1954-04-21	1954-10-14
1955	1955-05-05	1955-09-16
1956	1956-04-29	1956-09-24
1957	1957-04-22	1957-09-23
1958	1958-05-19	1958-09-27
1959	1959-04-09	1959-10-07
1960	1960-04-15	1960-09-10
1961	1961-05-26	1961-09-26
1962	1962-04-26	1962-10-13
1963	1963-04-03	1963-10-08
1964	1964-04-18	1964-09-18
1965	1965-05-03	1965-09-24
1966	1966-05-29	1966-09-04
1967	1967-05-28	1967-08-19
1968	1968-05-04	1968-09-05
1969	1969-04-28	1969-09-18
1970	1970-05-01	1970-09-27
1971	1971-04-14	1971-09-11
1972	1972-06-16	1972-09-27
1973	1973-04-23	1973-09-06
1974	1974-04-29	1974-09-13
1975	1975-05-21	1975-08-27
1976	1976-04-17	1976-09-10
1977	1977-03-31	1977-09-03
1978	1978-05-21	1978-09-22
1979	1979-05-09	1979-08-11
1980	1980-06-08	1980-09-23
1981	1981-04-28	1981-09-14
1982	1982-05-07	1982-09-12
1983	1983-04-28	1983-09-21
1984	1984-04-30	1984-09-03
1985	1985-04-18	1985-09-10
1986	1986-03-30	1986-10-03
1987	1987-05-10	1987-08-28
1988	1988-05-28	1988-08-29
1989	1989-03-29	1989-09-11
1990	1990-03-13	1990-10-10
1991	1991-04-08	1991-09-19
1992	1992-05-03	1992-09-11
1993	1993-05-02	1993-09-16
1995	1995-04-19	1995-09-14

Every Fixed Threshold

Fixed thresholds at Hancock
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	47	81	1991	56
35 C (95 F): Days	33	24	1988	2
40 C (104 F): Days	1	1	1954	1
90 F (32.2 C): Days	47	47	1988	20
100 F (37.8 C): Days	9	9	1988	1
0 C (32 F): Ice days (max	47	40	1977	19
0 C (32 F): Frost days (min	42	151	1962	133
-10 C (14 F): Days with min	42	40	1978	19
-20 C (-4 F): Days with min	24	6	1961	1
20 C (68 F): Tropical nights (min	42	24	1987	18
10 mm (0.39 in): Days with 10 mm or more rain	48	43	1952	51
25 mm (0.98 in): Days with 25 mm or more rain	48	13	1970	17
50 mm (1.97 in): Days with 50 mm or more rain	34	4	1974	1
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1952	1
10 cm (3.9 in): Days with 10 cm or more snowfall	41	6	1951	3
25 cm (9.8 in): Days with 25 cm or more snowfall	15	2	1966	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1983	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1947.

Download the Data

Data for Hancock 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).

Hancock Threshold Days by Year (USC00184030)

Key Facts for Hancock Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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