Plainfield Threshold Days by Year (USC00287079)

19 fixed thresholds counted per year at Plainfield (USC00287079): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Plainfield Thresholds

Plainfield: days with a maximum temperature at or above 30 C (86 F) in 112 years, most in 2002 with 76.
Plainfield: days with a maximum temperature at or above 90 F (32.2 C) in 112 years, most in 1999 with 49.
Plainfield: days with a maximum temperature at or below 0 C (32 F) in 112 years, most in 1904 with 52.
Plainfield: nights with a minimum temperature at or below 0 C (32 F) in 112 years, most in 1926 with 154.
19 fixed thresholds have at least one qualifying day at Plainfield.

Days at or above 30 C (86 F)

112 years with a qualifying day

Days per year at Plainfield with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 76 in 2002.

Days at or above 30 C (86 F) per year at Plainfield
Year	Days	Decade average
1893	50	45.1
1894	58	45.1
1895	52	45.1
1896	46	45.1
1897	22	45.1
1898	46	45.1
1899	42	45.1
1900	62	36.1
1901	45	36.1
1902	26	36.1
1903	30	36.1
1904	25	36.1
1905	28	36.1
1906	33	36.1
1907	25	36.1
1908	48	36.1
1909	39	36.1
1910	42	37.6
1911	47	37.6
1912	39	37.6
1913	47	37.6
1914	36	37.6
1915	27	37.6
1916	25	37.6
1920	26	34.9
1921	41	34.9
1922	35	34.9
1923	43	34.9
1924	33	34.9
1925	34	34.9
1926	28	34.9
1927	24	34.9
1928	38	34.9
1929	47	34.9
1930	50	50.1
1931	43	50.1
1932	56	50.1
1933	48	50.1
1934	56	50.1
1935	40	50.1
1936	46	50.1
1937	50	50.1
1938	52	50.1
1939	60	50.1
1940	34	49.1
1941	60	49.1
1942	40	49.1
1943	57	49.1
1944	63	49.1
1945	48	49.1
1946	36	49.1
1947	51	49.1
1948	43	49.1
1949	59	49.1
1950	44	47.9
1951	44	47.9
1952	48	47.9
1953	51	47.9
1954	38	47.9
1955	53	47.9
1956	35	47.9
1957	56	47.9
1958	40	47.9
1959	70	47.9
1960	35	47.1
1961	53	47.1
1962	44	47.1
1963	42	47.1
1964	52	47.1
1965	53	47.1
1966	56	47.1
1967	41	47.1
1968	45	47.1
1969	50	47.1
1970	52	50
1971	52	50
1972	42	50
1973	56	50
1974	50	50
1975	47	50
1976	55	50
1977	58	50
1978	49	50
1979	39	50
1980	74	53.6
1981	49	53.6
1982	40	53.6
1983	68	53.6
1984	49	53.6
1985	56	53.6
1986	51	53.6
1987	58	53.6
1988	58	53.6
1989	33	53.6
1990	44	54.6
1991	71	54.6
1992	39	54.6
1993	64	54.6
1994	52	54.6
1995	56	54.6
1996	41	54.6
1997	42	54.6
1998	67	54.6
1999	70	54.6
2000	45	58.1
2001	61	58.1
2002	76	58.1
2003	46	58.1
2004	48	58.1
2005	71	58.1
2006	60	58.1
2011	66	66

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

First to last qualifying date each year at Plainfield
Year	First date	Last date
1893	1893-05-21	1893-08-27
1894	1894-05-02	1894-09-16
1895	1895-05-09	1895-09-26
1896	1896-04-15	1896-09-19
1897	1897-06-24	1897-10-16
1898	1898-05-20	1898-09-18
1899	1899-05-02	1899-09-08
1900	1900-05-13	1900-10-06
1901	1901-06-06	1901-09-15
1902	1902-04-22	1902-09-01
1903	1903-04-29	1903-09-15
1904	1904-05-24	1904-09-12
1905	1905-06-06	1905-09-30
1906	1906-05-13	1906-09-21
1907	1907-05-14	1907-09-21
1908	1908-05-13	1908-10-17
1909	1909-05-15	1909-09-14
1910	1910-06-19	1910-10-05
1911	1911-05-11	1911-09-25
1912	1912-05-21	1912-09-11
1913	1913-05-02	1913-09-08
1914	1914-05-20	1914-09-24
1915	1915-04-25	1915-09-17
1916	1916-07-02	1916-10-09
1920	1920-06-02	1920-09-24
1921	1921-03-21	1921-09-30
1922	1922-04-10	1922-10-06
1923	1923-04-21	1923-09-25
1924	1924-06-18	1924-09-02
1925	1925-05-23	1925-09-13
1926	1926-06-15	1926-10-05
1927	1927-04-20	1927-10-02
1928	1928-05-04	1928-10-12
1929	1929-04-07	1929-09-10
1930	1930-05-02	1930-09-26
1931	1931-05-28	1931-10-06
1932	1932-05-16	1932-09-13
1933	1933-05-20	1933-09-27
1934	1934-05-05	1934-09-10
1935	1935-04-27	1935-08-26
1936	1936-05-08	1936-09-12
1937	1937-05-22	1937-09-04
1938	1938-04-15	1938-10-17
1939	1939-04-25	1939-10-10
1940	1940-05-14	1940-09-21
1941	1941-04-14	1941-10-06
1942	1942-04-26	1942-09-17
1943	1943-05-07	1943-09-07
1944	1944-05-04	1944-10-07
1945	1945-03-17	1945-09-29
1946	1946-05-31	1946-10-06
1947	1947-05-13	1947-10-23
1948	1948-05-10	1948-09-19
1949	1949-05-04	1949-10-11
1950	1950-06-06	1950-11-01
1951	1951-05-15	1951-09-21
1952	1952-06-09	1952-09-13
1953	1953-05-10	1953-09-30
1954	1954-06-01	1954-10-13
1955	1955-05-05	1955-08-30
1956	1956-05-13	1956-10-15
1957	1957-04-21	1957-09-22
1958	1958-06-01	1958-09-26
1959	1959-05-12	1959-10-06
1960	1960-04-15	1960-09-09
1961	1961-06-02	1961-09-24
1962	1962-04-27	1962-10-12
1963	1963-05-05	1963-09-19
1964	1964-05-08	1964-09-23
1965	1965-05-04	1965-09-23
1966	1966-06-04	1966-09-02
1967	1967-06-02	1967-10-05
1968	1968-06-06	1968-09-25
1969	1969-04-27	1969-09-17
1970	1970-05-09	1970-09-26
1971	1971-06-04	1971-09-15
1972	1972-04-19	1972-09-26
1973	1973-06-04	1973-09-05
1974	1974-04-29	1974-09-13
1975	1975-05-20	1975-10-14
1976	1976-04-17	1976-09-14
1977	1977-04-12	1977-09-19
1978	1978-05-20	1978-09-07
1979	1979-05-08	1979-10-22
1980	1980-05-05	1980-09-23
1981	1981-05-24	1981-09-14
1982	1982-05-16	1982-09-12
1983	1983-04-28	1983-09-20
1984	1984-05-26	1984-09-25
1985	1985-04-19	1985-09-21
1986	1986-05-06	1986-09-30
1987	1987-05-10	1987-09-10
1988	1988-05-23	1988-08-28
1989	1989-05-20	1989-09-11
1990	1990-04-27	1990-10-06
1991	1991-04-07	1991-09-17
1992	1992-05-21	1992-09-18
1993	1993-05-09	1993-09-15
1994	1994-04-27	1994-09-17
1995	1995-05-23	1995-09-14
1996	1996-04-23	1996-09-10
1997	1997-06-10	1997-10-06
1998	1998-03-30	1998-09-27
1999	1999-05-12	1999-09-09
2000	2000-05-05	2000-09-09
2001	2001-04-22	2001-09-13
2002	2002-04-16	2002-10-02
2003	2003-04-16	2003-09-14
2004	2004-04-19	2004-09-13
2005	2005-04-20	2005-09-23
2006	2006-05-04	2006-08-24
2011	2011-05-26	2011-09-04

Every Fixed Threshold

Fixed thresholds at Plainfield
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	112	76	2002	66
35 C (95 F): Days	100	24	1999	9
40 C (104 F): Days	8	5	1949	1
90 F (32.2 C): Days	112	49	1999	31
100 F (37.8 C): Days	41	10	1949	2
0 C (32 F): Ice days (max	112	52	1904	15
0 C (32 F): Frost days (min	112	154	1926	92
-10 C (14 F): Days with min	112	41	1904	12
-20 C (-4 F): Days with min	30	5	1899	1
20 C (68 F): Tropical nights (min	112	54	2011	54
25 C (77 F): Days with min	13	4	1999	3
10 mm (0.39 in): Days with 10 mm or more rain	112	58	1983	36
25 mm (0.98 in): Days with 25 mm or more rain	112	23	1975	14
50 mm (1.97 in): Days with 50 mm or more rain	101	7	1975	3
100 mm (3.94 in): Days with 100 mm or more rain	26	2	1905	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1999	1
10 cm (3.9 in): Days with 10 cm or more snowfall	93	8	1978	1
25 cm (9.8 in): Days with 25 cm or more snowfall	35	2	1902	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1947	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 Plainfield 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).

Plainfield Threshold Days by Year (USC00287079)

Key Facts for Plainfield Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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