Brookville Threshold Days by Year (USC00121030)

18 fixed thresholds counted per year at Brookville (USC00121030): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Brookville Thresholds

Brookville: days with 10 mm (0.39 in) or more of precipitation in 94 years, most in 1990 with 52.
Brookville: days with 25 mm (0.98 in) or more of precipitation in 94 years, most in 1990 with 25.
Brookville: days with a maximum temperature at or above 30 C (86 F) in 92 years, most in 1936 with 97.
Brookville: days with a maximum temperature at or above 90 F (32.2 C) in 92 years, most in 1936 with 78.
18 fixed thresholds have at least one qualifying day at Brookville.

Days at or above 30 C (86 F)

92 years with a qualifying day

Days per year at Brookville with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 97 in 1936.

Days at or above 30 C (86 F) per year at Brookville
Year	Days	Decade average
1926	66	54.5
1927	49	54.5
1928	57	54.5
1929	46	54.5
1930	82	74.8
1931	75	74.8
1932	63	74.8
1933	82	74.8
1934	91	74.8
1935	62	74.8
1936	97	74.8
1937	63	74.8
1938	62	74.8
1939	71	74.8
1940	65	68.9
1941	81	68.9
1942	69	68.9
1943	78	68.9
1944	91	68.9
1945	51	68.9
1946	57	68.9
1947	57	68.9
1948	68	68.9
1949	72	68.9
1950	43	62.9
1951	75	62.9
1952	78	62.9
1953	81	62.9
1954	74	62.9
1955	68	62.9
1956	57	62.9
1957	58	62.9
1958	32	62.9
1960	33	40.4
1961	41	40.4
1962	40	40.4
1965	35	40.4
1966	46	40.4
1967	24	40.4
1969	64	40.4
1970	67	58.5
1971	57	58.5
1972	51	58.5
1973	62	58.5
1974	45	58.5
1975	76	58.5
1976	47	58.5
1977	70	58.5
1978	64	58.5
1979	46	58.5
1980	83	63.4
1981	45	63.4
1982	54	63.4
1983	83	63.4
1984	62	63.4
1985	54	63.4
1986	66	63.4
1987	69	63.4
1988	66	63.4
1989	52	63.4
1990	48	61
1991	82	61
1992	24	61
1994	53	61
1998	81	61
1999	78	61
2000	35	62
2001	62	62
2002	88	62
2003	43	62
2004	49	62
2005	77	62
2006	56	62
2007	96	62
2008	52	62
2010	90	74.8
2011	75	74.8
2012	84	74.8
2013	53	74.8
2014	51	74.8
2015	67	74.8
2016	86	74.8
2017	60	74.8
2018	94	74.8
2019	88	74.8
2020	67	72.9
2021	71	72.9
2022	73	72.9
2023	60	72.9
2024	81	72.9
2025	82	72.9
2026	76	72.9

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

First to last qualifying date each year at Brookville
Year	First date	Last date
1926	1926-05-01	1926-10-04
1927	1927-05-09	1927-10-06
1928	1928-05-03	1928-10-15
1929	1929-03-24	1929-09-28
1930	1930-04-11	1930-09-25
1931	1931-05-16	1931-10-03
1932	1932-05-15	1932-09-19
1933	1933-05-18	1933-09-30
1934	1934-05-04	1934-09-26
1935	1935-04-26	1935-10-13
1936	1936-05-06	1936-09-22
1937	1937-05-21	1937-10-01
1938	1938-05-19	1938-09-26
1939	1939-05-23	1939-10-09
1940	1940-05-07	1940-10-07
1941	1941-04-13	1941-09-30
1942	1942-04-30	1942-10-03
1943	1943-05-06	1943-09-30
1944	1944-05-15	1944-10-06
1945	1945-06-01	1945-09-28
1946	1946-04-22	1946-10-07
1947	1947-06-05	1947-10-22
1948	1948-04-24	1948-09-20
1949	1949-05-04	1949-10-11
1950	1950-05-05	1950-11-01
1951	1951-04-29	1951-10-06
1952	1952-05-05	1952-10-02
1953	1953-05-26	1953-10-22
1954	1954-04-26	1954-10-12
1955	1955-05-04	1955-09-22
1956	1956-05-12	1956-10-16
1957	1957-04-22	1957-09-16
1958	1958-06-05	1958-09-07
1960	1960-05-21	1960-09-25
1961	1961-06-02	1961-09-25
1962	1962-04-27	1962-10-16
1965	1965-06-02	1965-09-22
1966	1966-05-24	1966-09-04
1967	1967-05-26	1967-10-05
1969	1969-05-05	1969-09-07
1970	1970-04-30	1970-09-24
1971	1971-05-18	1971-10-04
1972	1972-05-25	1972-09-22
1973	1973-06-04	1973-09-29
1974	1974-05-18	1974-09-12
1975	1975-05-20	1975-10-14
1976	1976-04-21	1976-09-14
1977	1977-04-19	1977-09-19
1978	1978-05-27	1978-09-22
1979	1979-05-09	1979-09-13
1980	1980-04-23	1980-09-23
1981	1981-04-28	1981-10-01
1982	1982-05-06	1982-10-07
1983	1983-06-11	1983-10-04
1984	1984-05-20	1984-09-23
1985	1985-04-19	1985-10-14
1986	1986-04-26	1986-10-01
1987	1987-05-15	1987-09-28
1988	1988-04-06	1988-08-26
1989	1989-05-31	1989-09-10
1990	1990-04-25	1990-09-08
1991	1991-05-12	1991-09-17
1992	1992-05-18	1992-09-16
1994	1994-05-23	1994-10-02
1998	1998-05-14	1998-09-30
1999	1999-05-12	1999-09-29
2000	2000-05-07	2000-08-31
2001	2001-04-08	2001-09-14
2002	2002-04-17	2002-10-03
2003	2003-06-19	2003-09-11
2004	2004-04-19	2004-09-26
2005	2005-05-12	2005-10-07
2006	2006-05-29	2006-10-04
2007	2007-05-01	2007-10-09
2008	2008-06-03	2008-10-13
2010	2010-05-24	2010-10-12
2011	2011-04-11	2011-09-14
2012	2012-03-21	2012-09-08
2013	2013-05-02	2013-09-21
2014	2014-05-08	2014-10-03
2015	2015-05-05	2015-09-29
2016	2016-04-19	2016-10-07
2017	2017-05-16	2017-10-04
2018	2018-05-03	2018-10-10
2019	2019-05-09	2019-10-04
2020	2020-05-25	2020-09-13
2021	2021-05-21	2021-10-12
2022	2022-04-24	2022-09-22
2023	2023-04-21	2023-10-05
2024	2024-04-16	2024-10-07
2025	2025-04-25	2025-10-05
2026	2026-03-23	2026-10-14

Every Fixed Threshold

Fixed thresholds at Brookville
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	92	97	1936	76
35 C (95 F): Days	76	41	1936	9
40 C (104 F): Days	6	8	1936	3
90 F (32.2 C): Days	92	78	1936	38
100 F (37.8 C): Days	21	22	1936	7
0 C (32 F): Ice days (max	92	47	1978	25
0 C (32 F): Frost days (min	87	160	1988	70
-10 C (14 F): Days with min	87	57	1978	20
-20 C (-4 F): Days with min	55	21	1977	7
-30 C (-22 F): Days with min	5	2	1994	2
20 C (68 F): Tropical nights (min	87	47	2025	47
25 C (77 F): Days with min	10	7	1936	1
10 mm (0.39 in): Days with 10 mm or more rain	94	52	1990	34
25 mm (0.98 in): Days with 25 mm or more rain	94	25	1990	15
50 mm (1.97 in): Days with 50 mm or more rain	70	4	1985	3
100 mm (3.94 in): Days with 100 mm or more rain	7	1	1931	1
10 cm (3.9 in): Days with 10 cm or more snowfall	32	3	1951	2
25 cm (9.8 in): Days with 25 cm or more snowfall	4	1	1951	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1926.

Download the Data

Data for Brookville 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).

Brookville Threshold Days by Year (USC00121030)

Key Facts for Brookville Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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