Forman 5 SSE Threshold Days by Year (USC00323117)

20 fixed thresholds counted per year at Forman 5 SSE (USC00323117): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Forman 5 SSE Thresholds

Forman 5 SSE: days with 10 mm (0.39 in) or more of precipitation in 105 years, most in 1942 with 30.
Forman 5 SSE: days with 25 mm (0.98 in) or more of precipitation in 105 years, most in 1916 with 12.
Forman 5 SSE: days with a maximum temperature at or above 30 C (86 F) in 97 years, most in 1988 with 71.
Forman 5 SSE: days with a maximum temperature at or below 0 C (32 F) in 96 years, most in 2013 with 115.
20 fixed thresholds have at least one qualifying day at Forman 5 SSE.

Days at or above 30 C (86 F)

97 years with a qualifying day

Days per year at Forman 5 SSE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 71 in 1988.

Days at or above 30 C (86 F) per year at Forman 5 SSE
Year	Days	Decade average
1893	50	38.8
1895	43	38.8
1898	35	38.8
1899	27	38.8
1901	39	29.8
1902	11	29.8
1903	15	29.8
1904	29	29.8
1905	25	29.8
1906	35	29.8
1908	34	29.8
1909	50	29.8
1910	53	39.1
1911	49	39.1
1912	29	39.1
1913	42	39.1
1914	40	39.1
1915	26	39.1
1916	44	39.1
1917	38	39.1
1918	31	39.1
1937	41	41
1938	33	41
1939	49	41
1940	42	35.1
1941	38	35.1
1942	15	35.1
1943	37	35.1
1944	19	35.1
1945	26	35.1
1946	29	35.1
1947	54	35.1
1948	48	35.1
1949	43	35.1
1950	27	40.1
1951	17	40.1
1953	46	40.1
1954	42	40.1
1955	56	40.1
1956	33	40.1
1957	33	40.1
1958	40	40.1
1959	67	40.1
1960	44	32.9
1961	44	32.9
1962	23	32.9
1963	38	32.9
1964	36	32.9
1965	12	32.9
1966	31	32.9
1967	32	32.9
1968	25	32.9
1969	44	32.9
1970	50	38.2
1971	33	38.2
1972	30	38.2
1973	37	38.2
1974	46	38.2
1975	37	38.2
1976	62	38.2
1977	30	38.2
1978	35	38.2
1979	22	38.2
1980	42	41.6
1981	24	41.6
1982	39	41.6
1983	56	41.6
1984	41	41.6
1985	28	41.6
1986	22	41.6
1987	46	41.6
1988	71	41.6
1989	47	41.6
1990	49	28.5
1991	39	28.5
1992	18	28.5
1993	9	28.5
1994	26	28.5
1995	31	28.5
1996	30	28.5
1997	30	28.5
1998	26	28.5
1999	27	28.5
2005	14	17.3
2006	33	17.3
2009	5	17.3
2010	20	23.4
2011	24	23.4
2012	45	23.4
2013	26	23.4
2014	7	23.4
2015	29	23.4
2016	23	23.4
2018	25	23.4
2019	12	23.4
2020	22	21.5
2026	21	21.5

For each year, a bar from the first to the last day at Forman 5 SSE meeting 30 C (86 F).

First to last qualifying date each year at Forman 5 SSE
Year	First date	Last date
1893	1893-05-18	1893-09-20
1895	1895-05-09	1895-09-19
1898	1898-06-02	1898-09-27
1899	1899-05-11	1899-09-01
1901	1901-05-01	1901-09-04
1902	1902-05-29	1902-08-17
1903	1903-05-16	1903-08-31
1904	1904-06-03	1904-09-26
1905	1905-06-03	1905-09-29
1906	1906-04-30	1906-09-10
1908	1908-04-21	1908-09-24
1909	1909-05-04	1909-10-07
1910	1910-04-10	1910-10-17
1911	1911-05-08	1911-09-16
1912	1912-04-04	1912-10-04
1913	1913-04-15	1913-09-09
1914	1914-07-03	1914-10-17
1915	1915-04-14	1915-09-06
1916	1916-05-06	1916-09-05
1917	1917-05-16	1917-09-23
1918	1918-05-04	1918-08-28
1937	1937-05-28	1937-10-03
1938	1938-06-05	1938-09-25
1939	1939-05-05	1939-09-18
1940	1940-05-31	1940-09-19
1941	1941-06-17	1941-09-21
1942	1942-07-09	1942-09-10
1943	1943-05-28	1943-08-31
1944	1944-06-01	1944-08-12
1945	1945-06-22	1945-09-07
1946	1946-06-06	1946-09-15
1947	1947-06-26	1947-10-21
1948	1948-05-19	1948-09-18
1949	1949-05-03	1949-09-25
1950	1950-05-22	1950-09-09
1951	1951-07-14	1951-08-07
1953	1953-05-29	1953-10-02
1954	1954-06-13	1954-09-26
1955	1955-05-02	1955-10-10
1956	1956-06-03	1956-10-12
1957	1957-06-20	1957-08-31
1958	1958-04-16	1958-10-15
1959	1959-04-30	1959-09-14
1960	1960-05-31	1960-10-08
1961	1961-06-04	1961-10-06
1962	1962-04-24	1962-10-14
1963	1963-05-30	1963-10-05
1964	1964-05-20	1964-09-02
1965	1965-05-13	1965-08-13
1966	1966-05-21	1966-08-31
1967	1967-05-22	1967-09-07
1968	1968-04-30	1968-09-14
1969	1969-05-14	1969-09-14
1970	1970-05-17	1970-10-05
1971	1971-06-16	1971-09-13
1972	1972-05-17	1972-09-20
1973	1973-06-02	1973-08-31
1974	1974-06-04	1974-09-27
1975	1975-05-19	1975-10-08
1976	1976-06-03	1976-10-01
1977	1977-04-10	1977-09-09
1978	1978-05-26	1978-09-12
1979	1979-05-29	1979-09-27
1980	1980-04-21	1980-10-01
1981	1981-07-02	1981-09-13
1982	1982-05-04	1982-09-11
1983	1983-06-11	1983-09-28
1984	1984-05-17	1984-09-22
1985	1985-04-19	1985-09-01
1986	1986-05-31	1986-08-20
1987	1987-04-29	1987-09-27
1988	1988-05-19	1988-09-18
1989	1989-06-07	1989-10-01
1990	1990-04-22	1990-10-06
1991	1991-05-13	1991-10-17
1992	1992-05-01	1992-10-02
1993	1993-06-12	1993-10-07
1994	1994-05-19	1994-09-11
1995	1995-06-14	1995-09-05
1996	1996-06-10	1996-09-10
1997	1997-05-18	1997-09-08
1998	1998-06-25	1998-09-19
1999	1999-05-30	1999-09-01
2005	2005-06-20	2005-09-11
2006	2006-05-28	2006-10-02
2009	2009-04-24	2009-08-15
2010	2010-05-29	2010-08-31
2011	2011-06-07	2011-10-06
2012	2012-05-15	2012-09-16
2013	2013-05-14	2013-09-20
2014	2014-05-31	2014-09-26
2015	2015-06-10	2015-10-12
2016	2016-05-06	2016-09-12
2018	2018-05-17	2018-09-17
2019	2019-05-31	2019-09-17
2020	2020-06-02	2020-08-24
2026	2026-05-28	2026-09-04

Every Fixed Threshold

Fixed thresholds at Forman 5 SSE
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	97	71	1988	21
35 C (95 F): Days	84	30	1988	2
40 C (104 F): Days	12	7	1988	2
90 F (32.2 C): Days	95	51	1988	10
100 F (37.8 C): Days	43	12	1988	3
110 F (43.3 C): Days	1	1	1917	1
0 C (32 F): Ice days (max	96	115	2013	85
0 C (32 F): Frost days (min	93	201	1979	182
-10 C (14 F): Days with min	93	121	1955	75
-20 C (-4 F): Days with min	93	64	1978	16
-30 C (-22 F): Days with min	88	22	1895	1
-40 C (-40 F): Days with min	6	2	1893	1
20 C (68 F): Tropical nights (min	88	20	1916	6
25 C (77 F): Days with min	13	2	1947	1
10 mm (0.39 in): Days with 10 mm or more rain	105	30	1942	5
25 mm (0.98 in): Days with 25 mm or more rain	105	12	1916	1
50 mm (1.97 in): Days with 50 mm or more rain	43	5	1998	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1939	1
10 cm (3.9 in): Days with 10 cm or more snowfall	42	10	2019	4
25 cm (9.8 in): Days with 25 cm or more snowfall	3	1	1982	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.

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Data for Forman 5 SSE 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).

Forman 5 SSE Threshold Days by Year (USC00323117)

Key Facts for Forman 5 SSE Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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