Greenfield Threshold Days by Year (USC00133438)

19 fixed thresholds counted per year at Greenfield (USC00133438): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Greenfield Thresholds

Greenfield: days with 10 mm (0.39 in) or more of precipitation in 111 years, most in 2015 with 46.
Greenfield: days with 25 mm (0.98 in) or more of precipitation in 111 years, most in 1902 with 16.
Greenfield: days with a maximum temperature at or above 30 C (86 F) in 105 years, most in 1894 with 96.
Greenfield: days with a maximum temperature at or below 0 C (32 F) in 105 years, most in 1978 with 74.
19 fixed thresholds have at least one qualifying day at Greenfield.

Days at or above 30 C (86 F)

105 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 96 in 1894.

Days at or above 30 C (86 F) per year at Greenfield
Year	Days	Decade average
1893	62	66
1894	96	66
1895	67	66
1896	48	66
1897	70	66
1898	64	66
1899	55	66
1900	69	46
1901	82	46
1902	14	46
1903	18	46
1904	25	46
1905	53	46
1906	61	46
1910	47	57.6
1911	75	57.6
1912	50	57.6
1913	72	57.6
1914	72	57.6
1915	18	57.6
1916	69	57.6
1921	85	85
1939	69	69
1940	50	45.2
1941	50	45.2
1942	38	45.2
1943	45	45.2
1944	42	45.2
1945	34	45.2
1946	43	45.2
1947	60	45.2
1948	48	45.2
1949	42	45.2
1950	12	41.9
1952	43	41.9
1953	59	41.9
1954	63	41.9
1957	47	41.9
1958	30	41.9
1959	39	41.9
1960	40	45.6
1961	31	45.6
1963	66	45.6
1964	51	45.6
1965	29	45.6
1966	44	45.6
1967	41	45.6
1968	60	45.6
1969	48	45.6
1970	57	55.4
1971	65	55.4
1972	44	55.4
1973	45	55.4
1974	49	55.4
1975	65	55.4
1976	54	55.4
1977	62	55.4
1978	57	55.4
1979	56	55.4
1980	78	52.4
1981	39	52.4
1982	33	52.4
1984	60	52.4
1985	48	52.4
1986	48	52.4
1987	58	52.4
1988	72	52.4
1989	36	52.4
1990	49	43.8
1991	55	43.8
1992	14	43.8
1993	25	43.8
1994	42	43.8
1995	51	43.8
1996	30	43.8
1997	63	43.8
1998	59	43.8
1999	50	43.8
2000	55	48.2
2001	61	48.2
2002	68	48.2
2003	52	48.2
2004	23	48.2
2005	65	48.2
2006	55	48.2
2007	61	48.2
2008	28	48.2
2009	14	48.2
2010	37	39.5
2011	41	39.5
2012	70	39.5
2013	43	39.5
2014	18	39.5
2015	24	39.5
2016	42	39.5
2017	44	39.5
2018	49	39.5
2019	27	39.5
2020	46	43.9
2021	46	43.9
2022	59	43.9
2023	33	43.9
2024	37	43.9
2025	40	43.9
2026	46	43.9

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
1893	1893-06-03	1893-10-15
1894	1894-04-28	1894-09-28
1895	1895-03-29	1895-09-21
1896	1896-04-15	1896-08-21
1897	1897-05-07	1897-10-15
1898	1898-04-16	1898-10-04
1899	1899-05-26	1899-10-21
1900	1900-04-27	1900-10-04
1901	1901-04-27	1901-10-22
1902	1902-04-21	1902-08-04
1903	1903-06-29	1903-08-24
1904	1904-05-24	1904-09-28
1905	1905-06-01	1905-09-26
1906	1906-04-24	1906-09-16
1910	1910-04-28	1910-08-24
1911	1911-05-09	1911-09-17
1912	1912-05-22	1912-09-09
1913	1913-04-30	1913-09-08
1914	1914-05-10	1914-09-06
1915	1915-04-28	1915-09-13
1916	1916-04-12	1916-10-04
1921	1921-05-20	1921-09-23
1939	1939-05-16	1939-10-07
1940	1940-05-05	1940-10-25
1941	1941-05-14	1941-09-20
1942	1942-05-28	1942-09-16
1943	1943-05-29	1943-08-31
1944	1944-05-14	1944-09-17
1945	1945-05-20	1945-09-23
1946	1946-06-06	1946-09-26
1947	1947-06-09	1947-10-21
1948	1948-04-18	1948-09-20
1949	1949-04-25	1949-10-07
1950	1950-04-22	1950-08-16
1952	1952-05-02	1952-09-30
1953	1953-05-25	1953-10-14
1954	1954-06-11	1954-10-03
1957	1957-06-05	1957-08-31
1958	1958-05-21	1958-09-24
1959	1959-06-08	1959-09-08
1960	1960-04-22	1960-09-07
1961	1961-06-19	1961-09-09
1963	1963-05-08	1963-10-10
1964	1964-04-16	1964-09-09
1965	1965-04-30	1965-09-09
1966	1966-05-05	1966-08-30
1967	1967-04-16	1967-09-08
1968	1968-05-02	1968-09-02
1969	1969-05-28	1969-10-04
1970	1970-04-28	1970-09-21
1971	1971-06-03	1971-10-01
1972	1972-04-06	1972-09-19
1973	1973-06-07	1973-09-22
1974	1974-06-14	1974-09-27
1975	1975-05-18	1975-10-13
1976	1976-05-20	1976-10-03
1977	1977-05-18	1977-09-07
1978	1978-06-10	1978-09-18
1979	1979-05-17	1979-09-11
1980	1980-04-21	1980-09-21
1981	1981-04-25	1981-09-30
1982	1982-06-24	1982-08-22
1984	1984-05-17	1984-09-24
1985	1985-04-18	1985-09-19
1986	1986-03-29	1986-09-21
1987	1987-04-26	1987-09-05
1988	1988-05-14	1988-09-18
1989	1989-04-24	1989-09-01
1990	1990-06-11	1990-10-06
1991	1991-04-06	1991-09-14
1992	1992-04-30	1992-08-10
1993	1993-06-17	1993-09-13
1994	1994-04-18	1994-10-01
1995	1995-06-07	1995-09-13
1996	1996-04-12	1996-09-04
1997	1997-05-18	1997-10-07
1998	1998-05-18	1998-10-01
1999	1999-06-04	1999-09-08
2000	2000-05-11	2000-09-19
2001	2001-05-14	2001-09-06
2002	2002-04-15	2002-10-01
2003	2003-04-14	2003-10-20
2004	2004-04-16	2004-09-14
2005	2005-06-06	2005-10-04
2006	2006-04-13	2006-10-04
2007	2007-04-29	2007-09-21
2008	2008-05-25	2008-09-01
2009	2009-06-18	2009-08-14
2010	2010-05-25	2010-10-09
2011	2011-05-10	2011-09-13
2012	2012-04-03	2012-09-12
2013	2013-05-15	2013-09-19
2014	2014-05-08	2014-09-06
2015	2015-06-10	2015-09-07
2016	2016-05-31	2016-09-24
2017	2017-05-16	2017-09-25
2018	2018-05-24	2018-10-04
2019	2019-05-17	2019-10-01
2020	2020-06-02	2020-10-10
2021	2021-04-27	2021-09-29
2022	2022-05-10	2022-09-21
2023	2023-06-15	2023-10-03
2024	2024-04-15	2024-10-12
2025	2025-06-03	2025-10-05
2026	2026-05-16	2026-10-13

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	105	96	1894	46
35 C (95 F): Days	83	38	1913	2
40 C (104 F): Days	6	6	1913	1
90 F (32.2 C): Days	104	68	1921	15
100 F (37.8 C): Days	27	17	1913	1
0 C (32 F): Ice days (max	105	74	1978	22
0 C (32 F): Frost days (min	105	173	2022	52
-10 C (14 F): Days with min	105	84	1893	25
-20 C (-4 F): Days with min	104	27	1963	6
-30 C (-22 F): Days with min	20	4	1899	2
20 C (68 F): Tropical nights (min	105	40	1913	22
25 C (77 F): Days with min	22	4	1901	1
10 mm (0.39 in): Days with 10 mm or more rain	111	46	2015	22
25 mm (0.98 in): Days with 25 mm or more rain	111	16	1902	11
50 mm (1.97 in): Days with 50 mm or more rain	93	8	2014	3
100 mm (3.94 in): Days with 100 mm or more rain	16	2	1933	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1992	1
10 cm (3.9 in): Days with 10 cm or more snowfall	81	6	1999	1
25 cm (9.8 in): Days with 25 cm or more snowfall	7	1	1948	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1893.

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 (USC00133438)

Key Facts for Greenfield Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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