Busby Threshold Days by Year (USC00241297)

18 fixed thresholds counted per year at Busby (USC00241297): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Busby Thresholds

Busby: days with 10 mm (0.39 in) or more of precipitation in 103 years, most in 1912 with 17.
Busby: nights with a minimum temperature at or below 0 C (32 F) in 102 years, most in 1912 with 216.
Busby: nights with a minimum temperature at or below -10 C (14 F) in 102 years, most in 1978 with 110.
Busby: nights with a minimum temperature at or below -20 C (-4 F) in 102 years, most in 1916 with 62.
18 fixed thresholds have at least one qualifying day at Busby.

Days at or above 30 C (86 F)

101 years with a qualifying day

Days per year at Busby with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 89 in 1936.

Days at or above 30 C (86 F) per year at Busby
Year	Days	Decade average
1908	50	50
1910	60	47.2
1911	49	47.2
1912	23	47.2
1913	47	47.2
1914	48	47.2
1915	19	47.2
1916	48	47.2
1917	51	47.2
1918	43	47.2
1919	84	47.2
1922	60	47.9
1923	51	47.9
1925	50	47.9
1926	49	47.9
1927	22	47.9
1928	31	47.9
1929	72	47.9
1930	63	67.9
1931	62	67.9
1932	61	67.9
1933	73	67.9
1934	74	67.9
1935	61	67.9
1936	89	67.9
1937	73	67.9
1938	65	67.9
1939	58	67.9
1940	78	58
1941	59	58
1942	38	58
1943	54	58
1949	61	58
1950	36	54.8
1951	39	54.8
1952	72	54.8
1953	65	54.8
1954	57	54.8
1955	54	54.8
1956	60	54.8
1957	46	54.8
1958	52	54.8
1959	67	54.8
1962	35	49.4
1963	65	49.4
1967	57	49.4
1968	36	49.4
1969	54	49.4
1971	61	48.1
1974	44	48.1
1975	45	48.1
1976	55	48.1
1977	36	48.1
1978	43	48.1
1979	53	48.1
1980	61	57.2
1981	58	57.2
1982	48	57.2
1983	60	57.2
1984	64	57.2
1985	51	57.2
1986	45	57.2
1987	43	57.2
1988	81	57.2
1989	61	57.2
1990	68	53.3
1991	55	53.3
1993	17	53.3
1994	65	53.3
1995	46	53.3
1996	58	53.3
1997	49	53.3
1998	67	53.3
1999	55	53.3
2000	66	61.5
2001	82	61.5
2002	60	61.5
2003	71	61.5
2004	53	61.5
2005	56	61.5
2006	68	61.5
2007	65	61.5
2008	46	61.5
2009	48	61.5
2010	38	55.7
2011	66	55.7
2012	79	55.7
2013	48	55.7
2014	48	55.7
2015	65	55.7
2016	64	55.7
2017	70	55.7
2018	40	55.7
2019	39	55.7
2020	71	57.9
2021	82	57.9
2022	73	57.9
2023	21	57.9
2024	40	57.9
2025	59	57.9
2026	59	57.9

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

First to last qualifying date each year at Busby
Year	First date	Last date
1908	1908-04-20	1908-09-21
1910	1910-06-11	1910-10-10
1911	1911-05-05	1911-09-15
1912	1912-06-21	1912-09-07
1913	1913-05-27	1913-09-13
1914	1914-06-01	1914-09-26
1915	1915-07-22	1915-09-01
1916	1916-06-27	1916-09-09
1917	1917-05-15	1917-09-30
1918	1918-05-04	1918-09-22
1919	1919-05-21	1919-09-17
1922	1922-05-24	1922-10-03
1923	1923-05-25	1923-09-08
1925	1925-05-19	1925-09-25
1926	1926-04-30	1926-08-30
1927	1927-06-26	1927-10-16
1928	1928-05-06	1928-09-18
1929	1929-05-23	1929-09-20
1930	1930-06-07	1930-09-17
1931	1931-05-14	1931-09-18
1932	1932-05-23	1932-09-17
1933	1933-05-30	1933-09-21
1934	1934-05-05	1934-09-13
1935	1935-06-12	1935-09-22
1936	1936-05-04	1936-09-22
1937	1937-05-18	1937-10-03
1938	1938-06-12	1938-09-30
1939	1939-04-29	1939-09-21
1940	1940-05-11	1940-09-17
1941	1941-05-12	1941-09-18
1942	1942-07-03	1942-09-09
1943	1943-06-18	1943-10-03
1949	1949-05-12	1949-09-24
1950	1950-06-05	1950-09-07
1951	1951-05-23	1951-09-10
1952	1952-04-26	1952-09-27
1953	1953-05-07	1953-10-10
1954	1954-05-19	1954-10-07
1955	1955-06-21	1955-10-10
1956	1956-05-19	1956-09-26
1957	1957-06-03	1957-10-01
1958	1958-05-11	1958-10-18
1959	1959-06-03	1959-09-14
1962	1962-04-19	1962-08-27
1963	1963-06-19	1963-10-17
1967	1967-07-05	1967-09-29
1968	1968-06-02	1968-09-11
1969	1969-05-26	1969-09-18
1971	1971-06-18	1971-09-13
1974	1974-06-17	1974-09-26
1975	1975-05-15	1975-10-04
1976	1976-06-02	1976-10-01
1977	1977-06-01	1977-09-14
1978	1978-05-15	1978-09-09
1979	1979-05-27	1979-09-25
1980	1980-04-20	1980-10-06
1981	1981-05-01	1981-09-19
1982	1982-06-22	1982-09-09
1983	1983-05-26	1983-09-26
1984	1984-05-15	1984-09-20
1985	1985-05-02	1985-09-14
1986	1986-05-03	1986-08-30
1987	1987-04-28	1987-10-03
1988	1988-05-13	1988-09-07
1989	1989-06-15	1989-09-30
1990	1990-06-10	1990-09-25
1991	1991-06-11	1991-10-16
1993	1993-05-13	1993-10-05
1994	1994-05-27	1994-09-09
1995	1995-06-13	1995-10-11
1996	1996-06-08	1996-10-10
1997	1997-05-31	1997-10-02
1998	1998-05-26	1998-09-18
1999	1999-05-28	1999-09-23
2000	2000-06-05	2000-09-17
2001	2001-05-12	2001-10-01
2002	2002-05-21	2002-09-17
2003	2003-05-25	2003-10-19
2004	2004-06-03	2004-10-09
2005	2005-06-17	2005-10-01
2006	2006-05-18	2006-09-14
2007	2007-06-21	2007-09-22
2008	2008-05-18	2008-09-20
2009	2009-05-19	2009-09-26
2010	2010-06-28	2010-10-04
2011	2011-06-05	2011-10-04
2012	2012-04-23	2012-09-15
2013	2013-05-12	2013-09-21
2014	2014-05-28	2014-09-27
2015	2015-06-08	2015-10-10
2016	2016-05-05	2016-09-11
2017	2017-05-06	2017-09-12
2018	2018-05-26	2018-09-10
2019	2019-06-06	2019-09-16
2020	2020-05-31	2020-10-10
2021	2021-05-18	2021-10-05
2022	2022-06-17	2022-09-29
2023	2023-07-10	2023-09-03
2024	2024-06-22	2024-10-08
2025	2025-05-10	2025-09-30
2026	2026-05-13	2026-08-28

Every Fixed Threshold

Fixed thresholds at Busby
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	101	89	1936	59
35 C (95 F): Days	99	45	1936	25
40 C (104 F): Days	40	7	1936	4
90 F (32.2 C): Days	101	71	1936	39
100 F (37.8 C): Days	83	24	1936	8
0 C (32 F): Ice days (max	101	80	1978	9
0 C (32 F): Frost days (min	102	216	1912	116
-10 C (14 F): Days with min	102	110	1978	30
-20 C (-4 F): Days with min	102	62	1916	7
-30 C (-22 F): Days with min	89	20	1916	7
-40 C (-40 F): Days with min	25	6	1936	2
20 C (68 F): Tropical nights (min	41	4	2000	2
25 C (77 F): Days with min	2	1	1954	1
10 mm (0.39 in): Days with 10 mm or more rain	103	17	1912	9
25 mm (0.98 in): Days with 25 mm or more rain	72	6	2011	1
50 mm (1.97 in): Days with 50 mm or more rain	15	2	1955	1
10 cm (3.9 in): Days with 10 cm or more snowfall	88	9	1918	2
25 cm (9.8 in): Days with 25 cm or more snowfall	21	3	1912	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1908.

Download the Data

Data for Busby 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).

Busby Threshold Days by Year (USC00241297)

Key Facts for Busby Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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