Union 8 S Threshold Days by Year (USC00388786)

16 fixed thresholds counted per year at Union 8 S (USC00388786): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Union 8 S Thresholds

Union 8 S: days with 10 mm (0.39 in) or more of precipitation in 70 years, most in 1971 with 55.
Union 8 S: days with 25 mm (0.98 in) or more of precipitation in 70 years, most in 1983 with 24.
Union 8 S: days with a maximum temperature at or above 30 C (86 F) in 69 years, most in 1954 with 128.
Union 8 S: days with a maximum temperature at or above 90 F (32.2 C) in 69 years, most in 1954 with 101.
16 fixed thresholds have at least one qualifying day at Union 8 S.

Days at or above 30 C (86 F)

69 years with a qualifying day

Days per year at Union 8 S with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 128 in 1954.

Days at or above 30 C (86 F) per year at Union 8 S
Year	Days	Decade average
1950	105	108.7
1951	115	108.7
1952	112	108.7
1953	116	108.7
1954	128	108.7
1955	108	108.7
1956	101	108.7
1957	99	108.7
1958	104	108.7
1959	99	108.7
1960	102	98.7
1961	86	98.7
1962	116	98.7
1963	100	98.7
1965	113	98.7
1966	88	98.7
1967	88	98.7
1968	99	98.7
1969	96	98.7
1970	118	102.4
1971	106	102.4
1972	98	102.4
1973	109	102.4
1974	104	102.4
1975	103	102.4
1976	88	102.4
1977	121	102.4
1978	110	102.4
1979	67	102.4
1980	118	95.1
1981	111	95.1
1982	82	95.1
1983	85	95.1
1984	83	95.1
1985	86	95.1
1986	114	95.1
1987	102	95.1
1988	87	95.1
1989	83	95.1
1990	98	85.5
1991	78	85.5
1992	68	85.5
1993	104	85.5
1994	66	85.5
1995	76	85.5
1996	81	85.5
1997	75	85.5
1998	109	85.5
1999	100	85.5
2000	109	86.7
2001	89	86.7
2002	106	86.7
2003	63	86.7
2004	73	86.7
2005	80	86.7
2013	71	102.4
2014	99	102.4
2015	106	102.4
2016	120	102.4
2017	97	102.4
2018	112	102.4
2019	112	102.4
2020	84	84.7
2021	77	84.7
2022	91	84.7
2023	72	84.7
2024	82	84.7
2025	76	84.7
2026	111	84.7

For each year, a bar from the first to the last day at Union 8 S meeting 30 C (86 F).

First to last qualifying date each year at Union 8 S
Year	First date	Last date
1950	1950-04-23	1950-11-02
1951	1951-05-01	1951-10-08
1952	1952-04-20	1952-10-03
1953	1953-04-24	1953-10-12
1954	1954-04-08	1954-10-28
1955	1955-04-19	1955-10-01
1956	1956-05-01	1956-10-02
1957	1957-04-21	1957-09-23
1958	1958-04-25	1958-11-17
1959	1959-04-09	1959-10-06
1960	1960-04-14	1960-10-04
1961	1961-04-24	1961-11-03
1962	1962-04-24	1962-10-18
1963	1963-03-19	1963-10-13
1965	1965-04-10	1965-10-17
1966	1966-05-10	1966-10-17
1967	1967-03-16	1967-10-07
1968	1968-03-21	1968-10-04
1969	1969-05-06	1969-10-15
1970	1970-04-20	1970-10-04
1971	1971-04-13	1971-10-06
1972	1972-04-14	1972-10-18
1973	1973-03-15	1973-10-14
1974	1974-03-08	1974-11-04
1975	1975-04-27	1975-10-13
1976	1976-03-04	1976-09-21
1977	1977-04-12	1977-10-03
1978	1978-04-03	1978-09-23
1979	1979-05-05	1979-09-20
1980	1980-04-23	1980-09-25
1981	1981-04-01	1981-10-07
1982	1982-05-13	1982-10-07
1983	1983-05-13	1983-10-05
1984	1984-04-27	1984-10-21
1985	1985-03-31	1985-10-16
1986	1986-04-01	1986-10-06
1987	1987-04-23	1987-09-19
1988	1988-04-06	1988-09-25
1989	1989-04-26	1989-09-16
1990	1990-04-26	1990-09-21
1991	1991-05-15	1991-09-20
1992	1992-04-25	1992-09-23
1993	1993-05-11	1993-09-27
1994	1994-04-15	1994-09-02
1995	1995-03-23	1995-09-11
1996	1996-04-23	1996-09-10
1997	1997-05-19	1997-09-21
1998	1998-03-31	1998-10-02
1999	1999-04-04	1999-09-15
2000	2000-05-03	2000-09-26
2001	2001-04-09	2001-09-24
2002	2002-03-17	2002-09-12
2003	2003-04-30	2003-09-21
2004	2004-04-19	2004-08-31
2005	2005-04-20	2005-09-30
2013	2013-04-11	2013-10-06
2014	2014-04-03	2014-10-12
2015	2015-04-09	2015-09-21
2016	2016-03-17	2016-10-31
2017	2017-03-22	2017-10-13
2018	2018-05-11	2018-10-09
2019	2019-05-18	2019-10-05
2020	2020-03-28	2020-09-15
2021	2021-04-08	2021-09-19
2022	2022-05-04	2022-09-23
2023	2023-03-25	2023-09-13
2024	2024-04-16	2024-10-08
2025	2025-04-05	2025-09-26
2026	2026-03-11	2026-10-03

Every Fixed Threshold

Fixed thresholds at Union 8 S
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	69	128	1954	111
35 C (95 F): Days	66	62	1954	13
40 C (104 F): Days	10	8	1952	1
90 F (32.2 C): Days	69	101	1954	59
100 F (37.8 C): Days	33	18	1980	2
0 C (32 F): Ice days (max	46	7	1989	1
0 C (32 F): Frost days (min	69	124	1969	52
-10 C (14 F): Days with min	60	29	1977	6
20 C (68 F): Tropical nights (min	68	80	2018	60
25 C (77 F): Days with min	2	1	1953	1
10 mm (0.39 in): Days with 10 mm or more rain	70	55	1971	18
25 mm (0.98 in): Days with 25 mm or more rain	70	24	1983	8
50 mm (1.97 in): Days with 50 mm or more rain	67	7	1983	1
100 mm (3.94 in): Days with 100 mm or more rain	17	2	1976	1
10 cm (3.9 in): Days with 10 cm or more snowfall	12	2	1993	1
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1971	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1950.

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Data for Union 8 S 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).

Union 8 S Threshold Days by Year (USC00388786)

Key Facts for Union 8 S Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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