Blanco Threshold Days by Year (USC00410832)

18 fixed thresholds counted per year at Blanco (USC00410832): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Blanco Thresholds

Blanco: days with 10 mm (0.39 in) or more of precipitation in 119 years, most in 1919 with 42.
Blanco: days with 25 mm (0.98 in) or more of precipitation in 119 years, most in 1957 with 18.
Blanco: days with a maximum temperature at or above 30 C (86 F) in 109 years, most in 1939 with 198.
Blanco: days with a maximum temperature at or above 35 C (95 F) in 109 years, most in 1939 with 126.
18 fixed thresholds have at least one qualifying day at Blanco.

Days at or above 30 C (86 F)

109 years with a qualifying day

Days per year at Blanco with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 198 in 1939.

Days at or above 30 C (86 F) per year at Blanco
Year	Days	Decade average
1899	162	162
1901	137	124.3
1903	106	124.3
1904	131	124.3
1905	134	124.3
1906	121	124.3
1909	117	124.3
1910	142	135.2
1911	147	135.2
1912	133	135.2
1913	134	135.2
1914	136	135.2
1915	136	135.2
1917	131	135.2
1918	140	135.2
1919	118	135.2
1920	139	155.7
1923	136	155.7
1926	147	155.7
1927	183	155.7
1928	162	155.7
1929	167	155.7
1930	156	171.5
1931	174	171.5
1932	150	171.5
1933	187	171.5
1934	173	171.5
1935	148	171.5
1936	168	171.5
1937	179	171.5
1938	182	171.5
1939	198	171.5
1940	177	150.8
1941	170	150.8
1942	134	150.8
1943	147	150.8
1944	131	150.8
1945	148	150.8
1946	129	150.8
1948	169	150.8
1949	152	150.8
1950	162	147.4
1951	159	147.4
1952	141	147.4
1953	141	147.4
1954	156	147.4
1955	182	147.4
1956	169	147.4
1957	113	147.4
1958	116	147.4
1959	135	147.4
1960	129	140.8
1961	140	140.8
1962	163	140.8
1963	186	140.8
1964	139	140.8
1965	122	140.8
1966	128	140.8
1967	152	140.8
1968	118	140.8
1969	131	140.8
1970	123	128.9
1971	136	128.9
1972	156	128.9
1973	133	128.9
1974	104	128.9
1975	125	128.9
1976	108	128.9
1977	136	128.9
1978	138	128.9
1979	130	128.9
1980	138	136.4
1981	133	136.4
1982	148	136.4
1983	126	136.4
1984	155	136.4
1985	128	136.4
1986	130	136.4
1987	125	136.4
1988	135	136.4
1989	146	136.4
1990	130	128.6
1991	122	128.6
1992	116	128.6
1993	118	128.6
1994	117	128.6
1995	125	128.6
1996	142	128.6
1997	125	128.6
1998	140	128.6
1999	151	128.6
2000	146	130.1
2001	121	130.1
2002	134	130.1
2003	126	130.1
2004	113	130.1
2006	173	130.1
2007	98	130.1
2008	143	130.1
2009	117	130.1
2010	130	141.6
2011	174	141.6
2012	155	141.6
2013	136	141.6
2014	140	141.6
2015	141	141.6
2017	126	141.6
2018	139	141.6
2019	133	141.6

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

First to last qualifying date each year at Blanco
Year	First date	Last date
1899	1899-03-01	1899-10-27
1901	1901-03-02	1901-10-29
1903	1903-04-02	1903-11-15
1904	1904-02-24	1904-10-16
1905	1905-04-27	1905-10-18
1906	1906-05-04	1906-11-09
1909	1909-04-05	1909-11-28
1910	1910-05-01	1910-11-26
1911	1911-03-09	1911-11-16
1912	1912-05-02	1912-10-30
1913	1913-04-02	1913-11-21
1914	1914-01-18	1914-10-20
1915	1915-04-14	1915-11-12
1917	1917-03-30	1917-12-06
1918	1918-03-13	1918-11-07
1919	1919-05-16	1919-10-30
1920	1920-04-08	1920-12-02
1923	1923-04-23	1923-12-09
1926	1926-03-21	1926-10-28
1927	1927-01-06	1927-11-11
1928	1928-02-29	1928-10-28
1929	1929-03-06	1929-10-30
1930	1930-02-07	1930-11-14
1931	1931-04-02	1931-12-20
1932	1932-02-06	1932-10-24
1933	1933-03-13	1933-12-03
1934	1934-03-17	1934-11-11
1935	1935-03-19	1935-10-31
1936	1936-03-14	1936-10-21
1937	1937-02-06	1937-10-31
1938	1938-01-17	1938-11-16
1939	1939-02-09	1939-12-12
1940	1940-02-27	1940-10-29
1941	1941-03-03	1941-11-19
1942	1942-03-13	1942-10-22
1943	1943-01-22	1943-10-31
1944	1944-03-24	1944-10-27
1945	1945-03-16	1945-11-01
1946	1946-03-29	1946-10-30
1948	1948-02-20	1948-11-27
1949	1949-04-08	1949-12-12
1950	1950-03-25	1950-11-03
1951	1951-03-09	1951-12-31
1952	1952-03-20	1952-10-15
1953	1953-03-02	1953-10-17
1954	1954-02-11	1954-11-18
1955	1955-03-11	1955-12-26
1956	1956-03-07	1956-10-11
1957	1957-02-11	1957-10-07
1958	1958-04-05	1958-10-10
1959	1959-02-18	1959-10-24
1960	1960-02-10	1960-11-03
1961	1961-03-29	1961-10-08
1962	1962-04-11	1962-11-11
1963	1963-03-05	1963-11-08
1964	1964-04-04	1964-10-30
1965	1965-04-19	1965-11-27
1966	1966-04-01	1966-11-12
1967	1967-03-12	1967-10-15
1968	1968-04-28	1968-10-16
1969	1969-05-15	1969-11-13
1970	1970-04-12	1970-10-25
1971	1971-01-31	1971-10-04
1972	1972-01-24	1972-10-19
1973	1973-04-20	1973-12-13
1974	1974-03-20	1974-10-10
1975	1975-01-27	1975-11-08
1976	1976-03-21	1976-10-11
1977	1977-04-04	1977-12-05
1978	1978-03-01	1978-10-21
1979	1979-04-21	1979-10-25
1980	1980-02-16	1980-11-10
1981	1981-04-21	1981-10-18
1982	1982-02-18	1982-11-02
1983	1983-03-02	1983-11-15
1984	1984-03-28	1984-10-21
1985	1985-03-12	1985-10-15
1986	1986-02-19	1986-10-05
1987	1987-04-11	1987-11-05
1988	1988-04-04	1988-11-08
1989	1989-03-14	1989-11-09
1990	1990-04-30	1990-10-15
1991	1991-03-05	1991-10-26
1992	1992-05-12	1992-11-01
1993	1993-03-26	1993-10-18
1994	1994-03-19	1994-10-23
1995	1995-03-23	1995-12-06
1996	1996-02-21	1996-10-18
1997	1997-03-22	1997-11-01
1998	1998-04-14	1998-10-06
1999	1999-02-10	1999-10-23
2000	2000-01-20	2000-10-06
2001	2001-04-16	2001-10-26
2002	2002-04-09	2002-11-11
2003	2003-04-05	2003-11-01
2004	2004-05-26	2004-10-20
2006	2006-03-02	2006-11-12
2007	2007-02-27	2007-10-22
2008	2008-02-26	2008-10-15
2009	2009-02-28	2009-10-16
2010	2010-04-27	2010-10-13
2011	2011-02-20	2011-10-25
2012	2012-02-23	2012-11-06
2013	2013-03-05	2013-11-18
2014	2014-03-29	2014-10-26
2015	2015-04-04	2015-10-22
2017	2017-04-26	2017-11-07
2018	2018-03-11	2018-10-15
2019	2019-04-06	2019-10-21

Every Fixed Threshold

Fixed thresholds at Blanco
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	109	198	1939	133
35 C (95 F): Days	109	126	1939	42
40 C (104 F): Days	56	15	1930	1
90 F (32.2 C): Days	109	173	1939	100
100 F (37.8 C): Days	98	58	1939	3
110 F (43.3 C): Days	5	2	1918	1
0 C (32 F): Ice days (max	56	7	1985	3
0 C (32 F): Frost days (min	106	65	1930	43
-10 C (14 F): Days with min	49	7	1930	2
-20 C (-4 F): Days with min	2	2	1899	2
20 C (68 F): Tropical nights (min	106	123	1915	96
25 C (77 F): Days with min	22	12	2010	1
10 mm (0.39 in): Days with 10 mm or more rain	119	42	1919	37
25 mm (0.98 in): Days with 25 mm or more rain	119	18	1957	18
50 mm (1.97 in): Days with 50 mm or more rain	102	8	1998	2
100 mm (3.94 in): Days with 100 mm or more rain	35	3	1961	1
200 mm (7.87 in): Days with 200 mm or more rain	4	1	1949	1
10 cm (3.9 in): Days with 10 cm or more snowfall	11	2	1944	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1899.

Download the Data

Data for Blanco 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Blanco Threshold Days by Year (USC00410832)

Key Facts for Blanco Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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