Haverhill Threshold Days by Year (USC00193505)

18 fixed thresholds counted per year at Haverhill (USC00193505): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Haverhill Thresholds

Haverhill: days with a maximum temperature at or above 30 C (86 F) in 119 years, most in 1959 with 60.
Haverhill: days with a maximum temperature at or above 90 F (32.2 C) in 119 years, most in 1955 with 41.
Haverhill: days with a maximum temperature at or below 0 C (32 F) in 119 years, most in 1904 with 65.
Haverhill: nights with a minimum temperature at or below 0 C (32 F) in 117 years, most in 1986 with 163.
18 fixed thresholds have at least one qualifying day at Haverhill.

Days at or above 30 C (86 F)

119 years with a qualifying day

Days per year at Haverhill with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 60 in 1959.

Days at or above 30 C (86 F) per year at Haverhill
Year	Days	Decade average
1900	47	26.3
1901	35	26.3
1902	17	26.3
1903	20	26.3
1904	16	26.3
1905	20	26.3
1906	25	26.3
1907	26	26.3
1908	35	26.3
1909	22	26.3
1910	28	29.8
1911	32	29.8
1912	21	29.8
1913	47	29.8
1914	29	29.8
1915	31	29.8
1916	24	29.8
1917	29	29.8
1918	28	29.8
1919	29	29.8
1920	26	27.1
1921	35	27.1
1922	30	27.1
1923	27	27.1
1925	26	27.1
1926	16	27.1
1927	17	27.1
1928	28	27.1
1929	39	27.1
1930	38	35.5
1931	36	35.5
1932	40	35.5
1933	38	35.5
1934	40	35.5
1935	32	35.5
1936	30	35.5
1937	42	35.5
1938	39	35.5
1939	20	35.5
1940	20	39.4
1941	50	39.4
1942	39	39.4
1943	41	39.4
1944	47	39.4
1950	36	36.5
1951	23	36.5
1952	44	36.5
1953	22	36.5
1954	6	36.5
1955	56	36.5
1956	42	36.5
1957	44	36.5
1958	32	36.5
1959	60	36.5
1960	36	38.9
1961	45	38.9
1962	30	38.9
1963	43	38.9
1964	27	38.9
1965	47	38.9
1966	49	38.9
1967	35	38.9
1968	38	38.9
1969	39	38.9
1970	44	39.2
1971	43	39.2
1972	23	39.2
1973	47	39.2
1974	35	39.2
1975	45	39.2
1976	46	39.2
1977	38	39.2
1978	36	39.2
1979	35	39.2
1980	37	26.7
1981	21	26.7
1982	14	26.7
1983	47	26.7
1984	32	26.7
1985	15	26.7
1986	12	26.7
1987	24	26.7
1988	42	26.7
1989	23	26.7
1990	31	31.7
1991	41	31.7
1992	18	31.7
1993	32	31.7
1994	28	31.7
1995	42	31.7
1996	19	31.7
1997	29	31.7
1998	31	31.7
1999	46	31.7
2000	17	25
2001	37	25
2002	41	25
2003	23	25
2004	22	25
2005	27	25
2008	18	25
2009	15	25
2010	41	31.5
2011	27	31.5
2012	36	31.5
2013	25	31.5
2014	23	31.5
2015	33	31.5
2016	39	31.5
2017	26	31.5
2018	38	31.5
2019	27	31.5
2020	40	34
2021	31	34
2022	41	34
2023	23	34
2024	38	34
2025	32	34
2026	33	34

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

First to last qualifying date each year at Haverhill
Year	First date	Last date
1900	1900-05-15	1900-09-12
1901	1901-05-22	1901-09-08
1902	1902-05-23	1902-09-05
1903	1903-05-17	1903-09-15
1904	1904-05-24	1904-08-01
1905	1905-06-16	1905-08-24
1906	1906-05-19	1906-09-19
1907	1907-06-18	1907-08-21
1908	1908-05-26	1908-09-11
1909	1909-06-03	1909-08-26
1910	1910-05-24	1910-08-15
1911	1911-05-12	1911-08-17
1912	1912-05-27	1912-08-26
1913	1913-05-05	1913-09-08
1914	1914-04-19	1914-09-24
1915	1915-04-26	1915-09-19
1916	1916-06-28	1916-09-14
1917	1917-06-14	1917-08-25
1918	1918-05-06	1918-08-24
1919	1919-05-29	1919-09-09
1920	1920-05-28	1920-09-27
1921	1921-05-21	1921-09-03
1922	1922-05-29	1922-10-05
1923	1923-04-21	1923-08-12
1925	1925-06-01	1925-09-12
1926	1926-06-24	1926-09-25
1927	1927-04-20	1927-10-01
1928	1928-06-14	1928-10-12
1929	1929-05-28	1929-09-04
1930	1930-05-02	1930-09-17
1931	1931-05-20	1931-09-23
1932	1932-05-16	1932-09-13
1933	1933-05-20	1933-08-28
1934	1934-05-05	1934-08-20
1935	1935-04-27	1935-08-26
1936	1936-05-08	1936-09-09
1937	1937-05-04	1937-09-04
1938	1938-04-20	1938-08-21
1939	1939-05-28	1939-10-10
1940	1940-06-03	1940-08-18
1941	1941-04-15	1941-10-04
1942	1942-05-01	1942-09-17
1943	1943-05-17	1943-08-24
1944	1944-05-27	1944-09-03
1950	1950-06-06	1950-10-01
1951	1951-05-15	1951-09-12
1952	1952-06-04	1952-09-13
1953	1953-05-11	1953-09-05
1954	1954-06-20	1954-10-01
1955	1955-05-22	1955-09-19
1956	1956-05-31	1956-10-16
1957	1957-04-21	1957-09-20
1958	1958-06-01	1958-09-26
1959	1959-05-11	1959-09-24
1960	1960-06-13	1960-09-09
1961	1961-05-14	1961-09-26
1962	1962-04-27	1962-09-10
1963	1963-05-09	1963-10-27
1964	1964-05-07	1964-09-11
1965	1965-05-09	1965-09-23
1966	1966-05-23	1966-09-02
1967	1967-06-02	1967-09-17
1968	1968-06-06	1968-10-02
1969	1969-05-17	1969-09-16
1970	1970-05-10	1970-09-25
1971	1971-06-07	1971-10-02
1972	1972-05-28	1972-08-31
1973	1973-04-22	1973-09-04
1974	1974-04-29	1974-09-13
1975	1975-05-19	1975-08-22
1976	1976-04-16	1976-09-14
1977	1977-04-22	1977-09-03
1978	1978-05-20	1978-09-21
1979	1979-05-09	1979-10-22
1980	1980-05-22	1980-09-22
1981	1981-05-25	1981-08-11
1982	1982-07-07	1982-08-16
1983	1983-06-12	1983-09-20
1984	1984-05-23	1984-08-16
1985	1985-05-11	1985-09-20
1986	1986-05-19	1986-07-28
1987	1987-05-30	1987-08-19
1988	1988-05-28	1988-08-28
1989	1989-05-20	1989-09-11
1990	1990-04-27	1990-08-29
1991	1991-04-08	1991-09-17
1992	1992-05-21	1992-09-18
1993	1993-05-11	1993-09-15
1994	1994-04-27	1994-08-28
1995	1995-05-24	1995-10-13
1996	1996-05-20	1996-09-06
1997	1997-06-10	1997-09-04
1998	1998-03-28	1998-09-27
1999	1999-05-30	1999-09-09
2000	2000-05-06	2000-09-01
2001	2001-05-01	2001-09-10
2002	2002-04-17	2002-09-10
2003	2003-06-24	2003-08-27
2004	2004-04-19	2004-08-30
2005	2005-06-04	2005-09-14
2008	2008-06-07	2008-09-05
2009	2009-04-26	2009-08-24
2010	2010-04-08	2010-09-26
2011	2011-05-28	2011-08-20
2012	2012-04-17	2012-09-08
2013	2013-05-31	2013-09-13
2014	2014-06-18	2014-09-29
2015	2015-05-11	2015-09-19
2016	2016-05-26	2016-09-15
2017	2017-04-12	2017-09-28
2018	2018-05-03	2018-09-17
2019	2019-05-27	2019-09-24
2020	2020-05-28	2020-09-09
2021	2021-05-23	2021-09-16
2022	2022-05-15	2022-09-05
2023	2023-04-14	2023-09-08
2024	2024-05-22	2024-09-18
2025	2025-06-06	2025-10-07
2026	2026-05-20	2026-09-11

Every Fixed Threshold

Fixed thresholds at Haverhill
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	119	60	1959	33
35 C (95 F): Days	87	16	1944	3
40 C (104 F): Days	2	1	1911	1
90 F (32.2 C): Days	119	41	1955	11
100 F (37.8 C): Days	20	6	1911	1
0 C (32 F): Ice days (max	119	65	1904	18
0 C (32 F): Frost days (min	117	163	1986	71
-10 C (14 F): Days with min	117	57	1904	26
-20 C (-4 F): Days with min	72	13	2015	4
20 C (68 F): Tropical nights (min	117	30	1973	8
25 C (77 F): Days with min	11	5	1911	1
10 mm (0.39 in): Days with 10 mm or more rain	98	54	1983	21
25 mm (0.98 in): Days with 25 mm or more rain	97	20	1983	6
50 mm (1.97 in): Days with 50 mm or more rain	78	7	2023	1
100 mm (3.94 in): Days with 100 mm or more rain	13	2	1954	1
10 cm (3.9 in): Days with 10 cm or more snowfall	73	12	1956	2
25 cm (9.8 in): Days with 25 cm or more snowfall	38	5	1969	1
50 cm (19.7 in): Days with 50 cm or more snowfall	2	1	1978	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1900.

Download the Data

Data for Haverhill 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).

Haverhill Threshold Days by Year (USC00193505)

Key Facts for Haverhill Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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