Halfway Threshold Days by Year (USC00353604)

18 fixed thresholds counted per year at Halfway (USC00353604): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Halfway Thresholds

Halfway: days with a maximum temperature at or above 30 C (86 F) in 84 years, most in 2003 with 93.
Halfway: days with a maximum temperature at or above 90 F (32.2 C) in 84 years, most in 2006 with 67.
Halfway: days with a maximum temperature at or below 0 C (32 F) in 84 years, most in 1985 with 80.
Halfway: nights with a minimum temperature at or below 0 C (32 F) in 84 years, most in 1964 with 211.
18 fixed thresholds have at least one qualifying day at Halfway.

Days at or above 30 C (86 F)

84 years with a qualifying day

Days per year at Halfway with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 93 in 2003.

Days at or above 30 C (86 F) per year at Halfway
Year	Days	Decade average
1937	67	61.3
1938	59	61.3
1939	58	61.3
1942	47	61.1
1944	68	61.1
1945	74	61.1
1946	51	61.1
1947	64	61.1
1948	51	61.1
1949	73	61.1
1950	52	59.9
1951	55	59.9
1953	56	59.9
1954	56	59.9
1955	65	59.9
1956	63	59.9
1957	67	59.9
1958	74	59.9
1959	51	59.9
1960	54	59.1
1961	73	59.1
1962	47	59.1
1963	62	59.1
1964	44	59.1
1965	41	59.1
1966	74	59.1
1967	86	59.1
1968	51	59.1
1969	59	59.1
1970	69	59.2
1971	56	59.2
1972	62	59.2
1973	69	59.2
1974	68	59.2
1975	53	59.2
1976	37	59.2
1977	68	59.2
1978	41	59.2
1979	69	59.2
1980	33	52.6
1981	64	52.6
1982	52	52.6
1983	40	52.6
1984	54	52.6
1985	47	52.6
1986	61	52.6
1987	71	52.6
1988	66	52.6
1989	38	52.6
1990	73	60.2
1991	66	60.2
1992	52	60.2
1993	20	60.2
1994	83	60.2
1995	52	60.2
1996	62	60.2
1997	60	60.2
1998	67	60.2
1999	67	60.2
2000	65	75.3
2001	78	75.3
2002	68	75.3
2003	93	75.3
2004	67	75.3
2005	69	75.3
2006	81	75.3
2007	80	75.3
2008	76	75.3
2009	76	75.3
2012	89	72.5
2013	88	72.5
2014	61	72.5
2015	73	72.5
2016	61	72.5
2017	85	72.5
2018	60	72.5
2019	63	72.5
2020	59	70
2021	78	70
2022	74	70
2023	56	70
2024	72	70
2025	81	70
2026	70	70

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

First to last qualifying date each year at Halfway
Year	First date	Last date
1937	1937-05-24	1937-09-18
1938	1938-06-05	1938-09-23
1939	1939-05-15	1939-09-24
1942	1942-06-29	1942-10-09
1944	1944-05-05	1944-09-24
1945	1945-05-03	1945-10-07
1946	1946-04-24	1946-09-14
1947	1947-05-02	1947-09-25
1948	1948-05-25	1948-09-14
1949	1949-05-09	1949-09-29
1950	1950-06-28	1950-09-05
1951	1951-06-15	1951-09-20
1953	1953-07-02	1953-09-21
1954	1954-05-15	1954-09-27
1955	1955-06-07	1955-09-13
1956	1956-05-17	1956-09-26
1957	1957-05-30	1957-09-30
1958	1958-05-18	1958-09-11
1959	1959-05-13	1959-09-12
1960	1960-06-02	1960-09-27
1961	1961-05-25	1961-08-30
1962	1962-06-18	1962-09-26
1963	1963-05-21	1963-09-30
1964	1964-06-24	1964-08-25
1965	1965-06-08	1965-09-01
1966	1966-05-03	1966-09-23
1967	1967-05-21	1967-09-28
1968	1968-06-16	1968-09-11
1969	1969-06-02	1969-09-11
1970	1970-06-02	1970-09-02
1971	1971-06-21	1971-09-12
1972	1972-05-28	1972-09-04
1973	1973-05-14	1973-09-13
1974	1974-06-11	1974-09-25
1975	1975-06-01	1975-09-23
1976	1976-05-27	1976-09-19
1977	1977-04-23	1977-09-13
1978	1978-06-04	1978-09-26
1979	1979-05-26	1979-10-08
1980	1980-04-26	1980-09-09
1981	1981-06-22	1981-09-18
1982	1982-06-11	1982-09-09
1983	1983-05-24	1983-08-31
1984	1984-05-29	1984-09-18
1985	1985-05-23	1985-08-29
1986	1986-05-26	1986-09-06
1987	1987-04-27	1987-10-02
1988	1988-05-12	1988-10-08
1989	1989-06-12	1989-09-15
1990	1990-06-21	1990-09-28
1991	1991-06-10	1991-10-01
1992	1992-05-05	1992-09-30
1993	1993-05-11	1993-09-10
1994	1994-05-08	1994-09-28
1995	1995-05-29	1995-09-18
1996	1996-06-03	1996-10-09
1997	1997-05-12	1997-10-01
1998	1998-06-29	1998-09-17
1999	1999-05-23	1999-09-23
2000	2000-05-21	2000-09-17
2001	2001-05-12	2001-10-01
2002	2002-05-29	2002-09-15
2003	2003-05-23	2003-10-06
2004	2004-06-03	2004-09-28
2005	2005-05-28	2005-09-08
2006	2006-05-14	2006-09-29
2007	2007-05-16	2007-09-13
2008	2008-05-16	2008-10-01
2009	2009-05-17	2009-09-26
2012	2012-04-23	2012-09-19
2013	2013-05-08	2013-09-15
2014	2014-06-02	2014-09-24
2015	2015-05-31	2015-09-25
2016	2016-04-08	2016-09-29
2017	2017-05-23	2017-09-13
2018	2018-04-27	2018-09-07
2019	2019-05-12	2019-09-15
2020	2020-05-28	2020-09-11
2021	2021-05-06	2021-09-09
2022	2022-06-22	2022-09-28
2023	2023-04-30	2023-09-17
2024	2024-06-06	2024-09-25
2025	2025-05-25	2025-09-24
2026	2026-05-12	2026-10-05

Every Fixed Threshold

Fixed thresholds at Halfway
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	84	93	2003	70
35 C (95 F): Days	83	37	2007	25
40 C (104 F): Days	21	4	1942	1
90 F (32.2 C): Days	84	67	2006	52
100 F (37.8 C): Days	57	13	2003	6
110 F (43.3 C): Days	1	1	1990	1
0 C (32 F): Ice days (max	84	80	1985	6
0 C (32 F): Frost days (min	84	211	1964	84
-10 C (14 F): Days with min	84	98	1985	2
-20 C (-4 F): Days with min	71	33	1949	1
-30 C (-22 F): Days with min	17	11	1949	1
20 C (68 F): Tropical nights (min	10	4	1938	1
10 mm (0.39 in): Days with 10 mm or more rain	83	27	1951	9
25 mm (0.98 in): Days with 25 mm or more rain	70	7	1973	1
50 mm (1.97 in): Days with 50 mm or more rain	7	1	1937	1
10 cm (3.9 in): Days with 10 cm or more snowfall	77	16	1939	5
25 cm (9.8 in): Days with 25 cm or more snowfall	38	3	1975	1
50 cm (19.7 in): Days with 50 cm or more snowfall	2	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 1937.

Download the Data

Data for Halfway 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).

Halfway Threshold Days by Year (USC00353604)

Key Facts for Halfway Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related