Greenfield Ctr Threshold Days by Year (USC00303452)

17 fixed thresholds counted per year at Greenfield Ctr (USC00303452): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Greenfield Ctr Thresholds

Greenfield Ctr: days with a maximum temperature at or above 30 C (86 F) in 50 years, most in 1949 with 36.
Greenfield Ctr: days with a maximum temperature at or below 0 C (32 F) in 50 years, most in 1947 with 78.
Greenfield Ctr: nights with a minimum temperature at or below 0 C (32 F) in 50 years, most in 1924 with 177.
Greenfield Ctr: nights with a minimum temperature at or below -10 C (14 F) in 50 years, most in 1917 with 75.
17 fixed thresholds have at least one qualifying day at Greenfield Ctr.

Days at or above 30 C (86 F)

50 years with a qualifying day

Days per year at Greenfield Ctr with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 36 in 1949.

Days at or above 30 C (86 F) per year at Greenfield Ctr
Year	Days	Decade average
1905	14	18.6
1906	17	18.6
1907	17	18.6
1908	23	18.6
1909	22	18.6
1910	16	18.5
1911	29	18.5
1912	17	18.5
1913	21	18.5
1914	16	18.5
1915	6	18.5
1916	21	18.5
1917	14	18.5
1918	27	18.5
1919	18	18.5
1920	13	13.7
1921	24	13.7
1922	14	13.7
1923	23	13.7
1924	7	13.7
1925	10	13.7
1926	8	13.7
1927	4	13.7
1928	14	13.7
1929	20	13.7
1930	26	20.5
1931	20	20.5
1932	8	20.5
1933	27	20.5
1934	23	20.5
1935	14	20.5
1936	25	20.5
1937	23	20.5
1938	19	20.5
1939	20	20.5
1940	11	18.9
1941	30	18.9
1942	6	18.9
1943	19	18.9
1944	29	18.9
1945	14	18.9
1946	15	18.9
1947	17	18.9
1948	12	18.9
1949	36	18.9
1950	5	15
1951	3	15
1952	27	15
1953	27	15
1954	13	15

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

First to last qualifying date each year at Greenfield Ctr
Year	First date	Last date
1905	1905-06-15	1905-09-30
1906	1906-05-16	1906-09-19
1907	1907-05-14	1907-08-20
1908	1908-06-08	1908-08-14
1909	1909-06-21	1909-08-28
1910	1910-06-15	1910-07-27
1911	1911-05-11	1911-09-02
1912	1912-06-24	1912-09-13
1913	1913-05-02	1913-09-02
1914	1914-05-26	1914-09-23
1915	1915-04-26	1915-09-16
1916	1916-07-07	1916-08-23
1917	1917-07-20	1917-08-20
1918	1918-06-01	1918-08-25
1919	1919-06-02	1919-09-08
1920	1920-06-01	1920-09-26
1921	1921-05-21	1921-09-10
1922	1922-06-07	1922-08-18
1923	1923-06-02	1923-09-01
1924	1924-07-06	1924-08-31
1925	1925-06-03	1925-08-25
1926	1926-07-09	1926-08-03
1927	1927-06-10	1927-07-14
1928	1928-07-08	1928-10-12
1929	1929-05-28	1929-09-07
1930	1930-05-02	1930-09-12
1931	1931-05-28	1931-09-14
1932	1932-05-16	1932-09-01
1933	1933-06-08	1933-08-26
1934	1934-05-22	1934-09-26
1935	1935-07-05	1935-08-19
1936	1936-05-08	1936-08-19
1937	1937-05-31	1937-09-03
1938	1938-06-07	1938-08-17
1939	1939-06-09	1939-10-10
1940	1940-06-04	1940-08-10
1941	1941-04-20	1941-09-16
1942	1942-07-13	1942-09-16
1943	1943-06-04	1943-08-23
1944	1944-05-04	1944-08-17
1945	1945-06-14	1945-09-08
1946	1946-06-24	1946-09-20
1947	1947-06-11	1947-08-31
1948	1948-06-29	1948-09-13
1949	1949-05-05	1949-08-27
1950	1950-06-08	1950-07-17
1951	1951-07-16	1951-08-14
1952	1952-06-15	1952-09-13
1953	1953-05-11	1953-09-05
1954	1954-06-14	1954-08-25

Every Fixed Threshold

Fixed thresholds at Greenfield Ctr
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	50	36	1949	13
35 C (95 F): Days	18	7	1911	5
90 F (32.2 C): Days	47	16	1933	1
100 F (37.8 C): Days	2	2	1911	1
0 C (32 F): Ice days (max	50	78	1947	44
0 C (32 F): Frost days (min	50	177	1924	148
-10 C (14 F): Days with min	50	75	1917	41
-20 C (-4 F): Days with min	48	22	1912	9
-30 C (-22 F): Days with min	19	4	1914	3
20 C (68 F): Tropical nights (min	46	10	1917	1
25 C (77 F): Days with min	2	2	1926	2
10 mm (0.39 in): Days with 10 mm or more rain	48	50	1907	42
25 mm (0.98 in): Days with 25 mm or more rain	48	14	1936	13
50 mm (1.97 in): Days with 50 mm or more rain	31	5	1935	3
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1921	1
10 cm (3.9 in): Days with 10 cm or more snowfall	5	12	1950	9
25 cm (9.8 in): Days with 25 cm or more snowfall	1	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 1905.

Download the Data

Data for Greenfield Ctr 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).

Greenfield Ctr Threshold Days by Year (USC00303452)

Key Facts for Greenfield Ctr Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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