Hereford Threshold Days by Year (USC00414098)

18 fixed thresholds counted per year at Hereford (USC00414098): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hereford Thresholds

Hereford: days with 10 mm (0.39 in) or more of precipitation in 87 years, most in 2015 with 35.
Hereford: days with 25 mm (0.98 in) or more of precipitation in 85 years, most in 1941 with 13.
Hereford: days with a maximum temperature at or above 30 C (86 F) in 81 years, most in 1939 with 156.
Hereford: days with a maximum temperature at or above 35 C (95 F) in 81 years, most in 2011 with 79.
18 fixed thresholds have at least one qualifying day at Hereford.

Days at or above 30 C (86 F)

81 years with a qualifying day

Days per year at Hereford with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 156 in 1939.

Days at or above 30 C (86 F) per year at Hereford
Year	Days	Decade average
1909	105	105
1910	122	122
1911	122	122
1937	114	135
1939	156	135
1941	99	101
1945	115	101
1948	113	101
1949	77	101
1950	78	101.1
1951	97	101.1
1952	98	101.1
1953	114	101.1
1954	110	101.1
1955	97	101.1
1956	130	101.1
1957	82	101.1
1958	107	101.1
1959	98	101.1
1960	91	92
1961	86	92
1962	104	92
1963	106	92
1964	96	92
1965	94	92
1966	84	92
1967	83	92
1968	79	92
1969	97	92
1970	96	89.6
1971	78	89.6
1972	85	89.6
1973	87	89.6
1974	90	89.6
1975	76	89.6
1977	109	89.6
1978	90	89.6
1979	95	89.6
1980	109	91.4
1981	89	91.4
1982	90	91.4
1983	94	91.4
1984	90	91.4
1985	99	91.4
1986	81	91.4
1987	81	91.4
1988	82	91.4
1989	99	91.4
1990	101	101
1991	100	101
1992	78	101
1993	103	101
1994	107	101
1995	95	101
1996	104	101
1997	95	101
1998	134	101
1999	93	101
2000	124	106
2001	116	106
2002	119	106
2003	100	106
2004	93	106
2005	107	106
2006	109	106
2007	96	106
2008	94	106
2009	102	106
2010	115	116.1
2011	136	116.1
2012	125	116.1
2013	114	116.1
2014	98	116.1
2015	111	116.1
2016	113	116.1
2017	98	116.1
2018	130	116.1
2019	121	116.1
2020	135	125
2024	130	125
2026	110	125

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

First to last qualifying date each year at Hereford
Year	First date	Last date
1909	1909-04-16	1909-10-16
1910	1910-03-05	1910-10-04
1911	1911-03-11	1911-10-19
1937	1937-04-15	1937-10-06
1939	1939-04-01	1939-10-25
1941	1941-04-16	1941-10-13
1945	1945-05-09	1945-10-30
1948	1948-04-17	1948-10-16
1949	1949-05-03	1949-10-09
1950	1950-04-04	1950-10-30
1951	1951-04-25	1951-10-13
1952	1952-04-08	1952-10-28
1953	1953-04-22	1953-10-12
1954	1954-04-07	1954-10-13
1955	1955-04-16	1955-10-21
1956	1956-04-27	1956-10-09
1957	1957-06-07	1957-10-05
1958	1958-05-07	1958-10-09
1959	1959-04-06	1959-10-26
1960	1960-04-22	1960-10-10
1961	1961-04-19	1961-10-25
1962	1962-04-17	1962-10-15
1963	1963-03-29	1963-10-11
1964	1964-04-20	1964-10-17
1965	1965-04-21	1965-10-16
1966	1966-04-27	1966-09-30
1967	1967-03-30	1967-10-13
1968	1968-05-23	1968-10-15
1969	1969-05-03	1969-10-10
1970	1970-05-08	1970-10-07
1971	1971-03-28	1971-10-16
1972	1972-04-07	1972-10-18
1973	1973-05-11	1973-10-23
1974	1974-03-28	1974-09-28
1975	1975-05-26	1975-10-28
1977	1977-05-02	1977-10-01
1978	1978-03-23	1978-10-13
1979	1979-04-16	1979-10-27
1980	1980-04-20	1980-11-09
1981	1981-04-12	1981-10-01
1982	1982-04-12	1982-09-28
1983	1983-05-25	1983-10-07
1984	1984-05-07	1984-09-25
1985	1985-05-05	1985-10-08
1986	1986-04-08	1986-09-23
1987	1987-04-18	1987-10-09
1988	1988-05-07	1988-10-18
1989	1989-03-11	1989-10-16
1990	1990-04-17	1990-10-07
1991	1991-04-08	1991-10-18
1992	1992-04-11	1992-10-14
1993	1993-04-19	1993-10-06
1994	1994-04-18	1994-10-04
1995	1995-03-22	1995-10-19
1996	1996-04-11	1996-10-15
1997	1997-05-02	1997-10-05
1998	1998-03-26	1998-10-16
1999	1999-04-21	1999-10-16
2000	2000-04-06	2000-10-04
2001	2001-04-15	2001-10-09
2002	2002-04-02	2002-10-12
2003	2003-04-14	2003-10-30
2004	2004-03-20	2004-09-19
2005	2005-05-10	2005-10-19
2006	2006-04-11	2006-10-04
2007	2007-05-05	2007-10-21
2008	2008-04-16	2008-10-11
2009	2009-04-23	2009-10-20
2010	2010-03-31	2010-10-31
2011	2011-03-18	2011-10-17
2012	2012-03-25	2012-10-24
2013	2013-04-08	2013-10-04
2014	2014-04-10	2014-10-27
2015	2015-04-01	2015-10-16
2016	2016-04-11	2016-10-30
2017	2017-04-09	2017-10-14
2018	2018-03-24	2018-10-06
2019	2019-04-10	2019-09-28
2020	2020-03-27	2020-10-23
2024	2024-04-15	2024-10-28
2026	2026-03-20	2026-08-31

Every Fixed Threshold

Fixed thresholds at Hereford
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	81	156	1939	110
35 C (95 F): Days	81	79	2011	72
40 C (104 F): Days	28	9	2020	3
90 F (32.2 C): Days	81	116	1939	96
100 F (37.8 C): Days	66	31	2011	30
110 F (43.3 C): Days	1	1	1910	1
0 C (32 F): Ice days (max	80	24	1978	2
0 C (32 F): Frost days (min	80	151	1970	59
-10 C (14 F): Days with min	80	31	1966	9
-20 C (-4 F): Days with min	14	4	1911	2
20 C (68 F): Tropical nights (min	76	53	2011	36
25 C (77 F): Days with min	2	12	1911	1
10 mm (0.39 in): Days with 10 mm or more rain	87	35	2015	4
25 mm (0.98 in): Days with 25 mm or more rain	85	13	1941	6
50 mm (1.97 in): Days with 50 mm or more rain	54	3	1941	3
100 mm (3.94 in): Days with 100 mm or more rain	4	2	2008	2
10 cm (3.9 in): Days with 10 cm or more snowfall	41	4	1999	1
25 cm (9.8 in): Days with 25 cm or more snowfall	4	2	1956	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1909.

Download the Data

Data for Hereford 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).

Hereford Threshold Days by Year (USC00414098)

Key Facts for Hereford Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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