Greenfield Threshold Days by Year (USC00123527)

18 fixed thresholds counted per year at Greenfield (USC00123527): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Greenfield Thresholds

Greenfield: days with a maximum temperature at or above 30 C (86 F) in 116 years, most in 1936 with 98.
Greenfield: days with a maximum temperature at or below 0 C (32 F) in 116 years, most in 1978 with 62.
Greenfield: days with a maximum temperature at or above 90 F (32.2 C) in 115 years, most in 1936 with 69.
Greenfield: nights with a minimum temperature at or below 0 C (32 F) in 115 years, most in 1976 with 146.
18 fixed thresholds have at least one qualifying day at Greenfield.

Days at or above 30 C (86 F)

116 years with a qualifying day

Days per year at Greenfield with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 98 in 1936.

Days at or above 30 C (86 F) per year at Greenfield
Year	Days	Decade average
1904	27	37.6
1905	40	37.6
1906	57	37.6
1907	35	37.6
1909	29	37.6
1910	21	47.9
1911	56	47.9
1912	35	47.9
1913	68	47.9
1914	65	47.9
1915	22	47.9
1916	68	47.9
1917	35	47.9
1918	61	47.9
1920	41	52.7
1921	87	52.7
1922	83	52.7
1923	45	52.7
1924	37	52.7
1926	53	52.7
1927	33	52.7
1928	53	52.7
1929	42	52.7
1930	74	70.9
1931	64	70.9
1932	49	70.9
1933	81	70.9
1934	83	70.9
1935	57	70.9
1936	98	70.9
1938	61	70.9
1941	79	65.7
1942	57	65.7
1943	66	65.7
1944	88	65.7
1945	46	65.7
1946	64	65.7
1947	62	65.7
1948	63	65.7
1949	66	65.7
1950	30	56.3
1951	51	56.3
1952	73	56.3
1953	81	56.3
1954	82	56.3
1955	72	56.3
1956	37	56.3
1957	43	56.3
1958	25	56.3
1959	69	56.3
1960	37	47.5
1961	52	47.5
1962	50	47.5
1963	43	47.5
1964	56	47.5
1965	39	47.5
1966	54	47.5
1967	37	47.5
1968	52	47.5
1969	55	47.5
1970	60	50.4
1971	54	50.4
1972	53	50.4
1973	54	50.4
1974	35	50.4
1975	63	50.4
1976	37	50.4
1977	62	50.4
1978	51	50.4
1979	35	50.4
1980	62	55.8
1981	29	55.8
1982	43	55.8
1983	79	55.8
1984	48	55.8
1985	41	55.8
1986	65	55.8
1987	85	55.8
1988	70	55.8
1989	36	55.8
1990	25	38.6
1991	60	38.6
1992	14	38.6
1993	39	38.6
1994	35	38.6
1995	51	38.6
1996	33	38.6
1997	28	38.6
1998	45	38.6
1999	56	38.6
2000	19	35.9
2001	53	35.9
2002	57	35.9
2003	22	35.9
2004	17	35.9
2005	46	35.9
2006	30	35.9
2007	67	35.9
2008	30	35.9
2009	18	35.9
2010	68	49.1
2011	62	49.1
2012	66	49.1
2013	38	49.1
2014	23	49.1
2015	30	49.1
2016	55	49.1
2017	36	49.1
2018	61	49.1
2019	52	49.1
2020	39	46.3
2022	48	46.3
2023	35	46.3
2024	48	46.3
2025	59	46.3
2026	49	46.3

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

First to last qualifying date each year at Greenfield
Year	First date	Last date
1904	1904-05-25	1904-09-28
1905	1905-05-11	1905-09-29
1906	1906-05-15	1906-09-18
1907	1907-06-19	1907-09-20
1909	1909-06-07	1909-09-22
1910	1910-06-16	1910-08-31
1911	1911-05-17	1911-09-18
1912	1912-05-25	1912-09-10
1913	1913-05-30	1913-10-07
1914	1914-05-25	1914-09-21
1915	1915-04-25	1915-09-16
1916	1916-05-10	1916-10-08
1917	1917-05-19	1917-09-14
1918	1918-05-22	1918-08-24
1920	1920-05-23	1920-09-26
1921	1921-05-19	1921-09-29
1922	1922-05-09	1922-10-05
1923	1923-06-03	1923-09-28
1924	1924-06-13	1924-09-21
1926	1926-05-07	1926-10-03
1927	1927-05-21	1927-09-17
1928	1928-05-10	1928-10-12
1929	1929-05-29	1929-09-28
1930	1930-04-11	1930-09-23
1931	1931-06-12	1931-09-22
1932	1932-06-05	1932-09-19
1933	1933-05-20	1933-09-26
1934	1934-05-04	1934-09-26
1935	1935-06-13	1935-09-25
1936	1936-05-07	1936-09-23
1938	1938-05-03	1938-10-17
1941	1941-04-13	1941-09-30
1942	1942-04-30	1942-09-18
1943	1943-05-05	1943-09-03
1944	1944-05-15	1944-09-20
1945	1945-06-01	1945-09-23
1946	1946-04-22	1946-10-07
1947	1947-06-09	1947-10-22
1948	1948-04-25	1948-09-20
1949	1949-05-03	1949-10-09
1950	1950-05-25	1950-10-17
1951	1951-05-01	1951-10-05
1952	1952-05-04	1952-09-30
1953	1953-05-25	1953-10-03
1954	1954-04-25	1954-10-04
1955	1955-05-03	1955-09-21
1956	1956-05-11	1956-09-14
1957	1957-06-12	1957-09-03
1958	1958-06-06	1958-09-06
1959	1959-05-03	1959-10-05
1960	1960-04-24	1960-09-24
1961	1961-06-02	1961-09-25
1962	1962-05-01	1962-09-14
1963	1963-05-09	1963-10-07
1964	1964-05-19	1964-09-22
1965	1965-05-09	1965-09-20
1966	1966-05-28	1966-09-04
1967	1967-05-26	1967-10-05
1968	1968-06-07	1968-09-24
1969	1969-05-06	1969-09-08
1970	1970-04-30	1970-09-24
1971	1971-05-18	1971-10-04
1972	1972-05-22	1972-09-21
1973	1973-06-04	1973-09-30
1974	1974-05-22	1974-08-28
1975	1975-05-20	1975-10-14
1976	1976-06-08	1976-09-15
1977	1977-04-19	1977-09-06
1978	1978-05-28	1978-09-21
1979	1979-05-09	1979-09-13
1980	1980-04-23	1980-09-23
1981	1981-06-09	1981-09-14
1982	1982-05-12	1982-10-07
1983	1983-06-11	1983-10-03
1984	1984-05-20	1984-09-23
1985	1985-04-22	1985-10-13
1986	1986-04-26	1986-09-30
1987	1987-04-22	1987-09-28
1988	1988-04-06	1988-09-12
1989	1989-05-31	1989-09-10
1990	1990-06-09	1990-09-07
1991	1991-05-17	1991-09-17
1992	1992-06-17	1992-08-11
1993	1993-05-09	1993-08-31
1994	1994-05-23	1994-09-16
1995	1995-06-08	1995-09-07
1996	1996-05-19	1996-08-24
1997	1997-06-20	1997-09-03
1998	1998-05-15	1998-09-28
1999	1999-06-06	1999-09-29
2000	2000-06-02	2000-09-04
2001	2001-05-16	2001-09-14
2002	2002-04-20	2002-09-20
2003	2003-06-25	2003-08-29
2004	2004-05-22	2004-09-24
2005	2005-05-12	2005-10-05
2006	2006-05-29	2006-08-24
2007	2007-05-01	2007-10-09
2008	2008-06-06	2008-09-14
2009	2009-05-24	2009-08-18
2010	2010-05-24	2010-10-11
2011	2011-05-12	2011-09-14
2012	2012-05-03	2012-09-05
2013	2013-05-16	2013-09-12
2014	2014-05-27	2014-09-06
2015	2015-05-08	2015-09-09
2016	2016-05-28	2016-09-26
2017	2017-05-19	2017-09-27
2018	2018-05-14	2018-10-10
2019	2019-05-19	2019-10-03
2020	2020-05-26	2020-09-10
2022	2022-05-12	2022-09-22
2023	2023-05-30	2023-10-04
2024	2024-05-20	2024-09-22
2025	2025-05-16	2025-10-04
2026	2026-03-23	2026-10-14

Every Fixed Threshold

Fixed thresholds at Greenfield
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	116	98	1936	49
35 C (95 F): Days	71	38	1936	3
40 C (104 F): Days	4	9	1936	1
90 F (32.2 C): Days	115	69	1936	22
100 F (37.8 C): Days	20	16	1936	6
0 C (32 F): Ice days (max	116	62	1978	30
0 C (32 F): Frost days (min	115	146	1976	66
-10 C (14 F): Days with min	115	58	1963	20
-20 C (-4 F): Days with min	81	20	1977	6
-30 C (-22 F): Days with min	2	2	1985	2
20 C (68 F): Tropical nights (min	115	47	1936	39
25 C (77 F): Days with min	12	3	1936	1
10 mm (0.39 in): Days with 10 mm or more rain	110	51	1990	37
25 mm (0.98 in): Days with 25 mm or more rain	110	21	2018	14
50 mm (1.97 in): Days with 50 mm or more rain	90	5	1926	2
100 mm (3.94 in): Days with 100 mm or more rain	9	1	1932	1
10 cm (3.9 in): Days with 10 cm or more snowfall	48	6	1951	1
25 cm (9.8 in): Days with 25 cm or more snowfall	2	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 1904.

Download the Data

Data for Greenfield 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).

Greenfield Threshold Days by Year (USC00123527)

Key Facts for Greenfield Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related