Hatch Threshold Days by Year (USC00293855)

18 fixed thresholds counted per year at Hatch (USC00293855): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hatch Thresholds

Hatch: days with 10 mm (0.39 in) or more of precipitation in 73 years, most in 1991 with 19.
Hatch: days with a maximum temperature at or above 30 C (86 F) in 68 years, most in 1989 with 161.
Hatch: days with a maximum temperature at or above 35 C (95 F) in 68 years, most in 1896 with 90.
Hatch: days with a maximum temperature at or above 90 F (32.2 C) in 68 years, most in 1943 with 134.
18 fixed thresholds have at least one qualifying day at Hatch.

Days at or above 30 C (86 F)

68 years with a qualifying day

Days per year at Hatch with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 161 in 1989.

Days at or above 30 C (86 F) per year at Hatch
Year	Days	Decade average
1895	142	130
1896	147	130
1897	113	130
1898	118	130
1906	120	121.8
1907	112	121.8
1908	125	121.8
1909	130	121.8
1910	158	131
1911	136	131
1912	118	131
1913	129	131
1915	118	131
1916	127	131
1936	148	143.8
1937	155	143.8
1938	141	143.8
1939	131	143.8
1940	124	137.4
1941	127	137.4
1942	127	137.4
1943	159	137.4
1944	125	137.4
1945	147	137.4
1946	154	137.4
1948	141	137.4
1949	133	137.4
1950	135	134.3
1951	142	134.3
1952	139	134.3
1953	137	134.3
1954	150	134.3
1955	133	134.3
1956	143	134.3
1957	117	134.3
1958	116	134.3
1959	131	134.3
1960	140	126.2
1961	127	126.2
1963	153	126.2
1964	101	126.2
1965	131	126.2
1966	135	126.2
1967	123	126.2
1968	117	126.2
1969	109	126.2
1970	126	134.6
1971	133	134.6
1972	144	134.6
1973	138	134.6
1974	128	134.6
1975	125	134.6
1976	126	134.6
1977	139	134.6
1978	143	134.6
1979	144	134.6
1980	128	131.5
1981	118	131.5
1982	129	131.5
1983	126	131.5
1984	134	131.5
1985	132	131.5
1986	124	131.5
1989	161	131.5
1990	112	137.8
1991	159	137.8
1993	151	137.8
1999	129	137.8

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

First to last qualifying date each year at Hatch
Year	First date	Last date
1895	1895-03-25	1895-09-26
1896	1896-03-21	1896-09-26
1897	1897-04-20	1897-09-10
1898	1898-04-26	1898-10-15
1906	1906-04-23	1906-10-18
1907	1907-03-18	1907-09-28
1908	1908-03-13	1908-10-01
1909	1909-04-03	1909-10-22
1910	1910-03-04	1910-10-15
1911	1911-04-21	1911-10-15
1912	1912-04-24	1912-09-24
1913	1913-03-31	1913-10-25
1915	1915-04-04	1915-10-21
1916	1916-03-19	1916-10-03
1936	1936-04-04	1936-10-18
1937	1937-04-15	1937-10-31
1938	1938-04-13	1938-10-16
1939	1939-04-23	1939-10-12
1940	1940-04-20	1940-10-10
1941	1941-05-06	1941-10-14
1942	1942-05-05	1942-10-10
1943	1943-03-29	1943-10-19
1944	1944-05-08	1944-10-15
1945	1945-04-18	1945-10-30
1946	1946-03-30	1946-10-22
1948	1948-04-10	1948-10-17
1949	1949-04-14	1949-10-03
1950	1950-04-04	1950-11-16
1951	1951-04-11	1951-10-16
1952	1952-04-08	1952-10-18
1953	1953-04-22	1953-10-17
1954	1954-04-04	1954-10-22
1955	1955-04-30	1955-10-21
1956	1956-05-01	1956-10-12
1957	1957-05-03	1957-10-04
1958	1958-04-22	1958-09-22
1959	1959-04-03	1959-10-26
1960	1960-03-08	1960-10-09
1961	1961-04-05	1961-10-14
1963	1963-03-29	1963-10-16
1964	1964-04-17	1964-10-12
1965	1965-04-21	1965-10-12
1966	1966-04-03	1966-10-13
1967	1967-03-29	1967-10-06
1968	1968-05-03	1968-10-28
1969	1969-03-31	1969-10-09
1970	1970-05-05	1970-09-25
1971	1971-04-10	1971-10-14
1972	1972-03-07	1972-10-17
1973	1973-04-28	1973-10-24
1974	1974-03-17	1974-10-04
1975	1975-05-11	1975-10-20
1976	1976-04-25	1976-09-24
1977	1977-04-08	1977-10-18
1978	1978-04-24	1978-10-18
1979	1979-04-22	1979-10-27
1980	1980-04-10	1980-10-05
1981	1981-04-25	1981-10-10
1982	1982-05-17	1982-10-07
1983	1983-05-22	1983-10-09
1984	1984-04-17	1984-09-24
1985	1985-04-15	1985-10-06
1986	1986-04-07	1986-09-22
1989	1989-03-09	1989-10-15
1990	1990-04-13	1990-10-14
1991	1991-04-06	1991-11-09
1993	1993-04-22	1993-10-16
1999	1999-04-27	1999-10-10

Every Fixed Threshold

Fixed thresholds at Hatch
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	68	161	1989	129
35 C (95 F): Days	68	90	1896	36
40 C (104 F): Days	41	22	1896	1
45 C (113 F): Days	1	3	1896	3
90 F (32.2 C): Days	68	134	1943	82
100 F (37.8 C): Days	68	55	1896	8
110 F (43.3 C): Days	3	6	1896	2
0 C (32 F): Ice days (max	18	3	1913	1
0 C (32 F): Frost days (min	67	144	1975	113
-10 C (14 F): Days with min	58	24	1956	4
-20 C (-4 F): Days with min	4	2	1913	2
20 C (68 F): Tropical nights (min	63	26	1910	6
25 C (77 F): Days with min	3	3	1942	1
10 mm (0.39 in): Days with 10 mm or more rain	73	19	1991	8
25 mm (0.98 in): Days with 25 mm or more rain	50	4	1938	2
50 mm (1.97 in): Days with 50 mm or more rain	8	1	1898	1
10 cm (3.9 in): Days with 10 cm or more snowfall	16	2	1948	2
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1973	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1895.

Download the Data

Data for Hatch 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).

Hatch Threshold Days by Year (USC00293855)

Key Facts for Hatch Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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