Austin Threshold Days by Year (USC00410420)

16 fixed thresholds counted per year at Austin (USC00410420): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Austin Thresholds

Austin: nights with a minimum temperature at or below 0 C (32 F) in 42 years, most in 1925 with 54.
Austin: nights with a minimum temperature at or above 20 C (68 F) in 42 years, most in 1905 with 152.
Austin: days with a maximum temperature at or above 30 C (86 F) in 41 years, most in 1925 with 182.
Austin: days with a maximum temperature at or above 35 C (95 F) in 41 years, most in 1925 with 129.
16 fixed thresholds have at least one qualifying day at Austin.

Days at or above 30 C (86 F)

41 years with a qualifying day

Days per year at Austin with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 182 in 1925.

Days at or above 30 C (86 F) per year at Austin
Year	Days	Decade average
1898	142	143.5
1899	145	143.5
1901	135	124
1902	143	124
1903	125	124
1904	177	124
1905	131	124
1906	125	124
1907	80	124
1908	92	124
1909	108	124
1910	138	134.1
1911	143	134.1
1912	134	134.1
1913	104	134.1
1914	124	134.1
1915	124	134.1
1916	157	134.1
1917	161	134.1
1918	136	134.1
1919	120	134.1
1920	158	156.4
1921	147	156.4
1923	161	156.4
1924	136	156.4
1925	182	156.4
1927	165	156.4
1928	148	156.4
1929	154	156.4
1930	134	150
1931	153	150
1932	143	150
1933	167	150
1934	168	150
1935	127	150
1936	136	150
1937	154	150
1938	157	150
1939	161	150
1940	133	136
1941	139	136

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

First to last qualifying date each year at Austin
Year	First date	Last date
1898	1898-04-22	1898-10-10
1899	1899-03-02	1899-10-23
1901	1901-03-02	1901-10-06
1902	1902-04-06	1902-10-25
1903	1903-04-01	1903-10-10
1904	1904-02-24	1904-10-13
1905	1905-05-11	1905-10-18
1906	1906-04-22	1906-10-03
1907	1907-03-20	1907-10-07
1908	1908-04-08	1908-09-27
1909	1909-03-27	1909-10-15
1910	1910-04-28	1910-10-15
1911	1911-03-08	1911-10-15
1912	1912-04-21	1912-10-11
1913	1913-03-30	1913-10-07
1914	1914-06-02	1914-10-20
1915	1915-05-13	1915-10-17
1916	1916-03-06	1916-10-31
1917	1917-01-29	1917-10-28
1918	1918-01-25	1918-10-10
1919	1919-05-04	1919-11-03
1920	1920-04-03	1920-10-20
1921	1921-04-25	1921-11-17
1923	1923-01-08	1923-10-18
1924	1924-03-28	1924-11-15
1925	1925-03-25	1925-10-25
1927	1927-02-22	1927-11-08
1928	1928-03-04	1928-10-15
1929	1929-03-06	1929-10-30
1930	1930-02-22	1930-10-11
1931	1931-04-02	1931-10-27
1932	1932-02-28	1932-10-24
1933	1933-03-18	1933-10-24
1934	1934-04-10	1934-11-10
1935	1935-03-19	1935-10-28
1936	1936-03-14	1936-11-02
1937	1937-04-16	1937-10-29
1938	1938-03-03	1938-11-17
1939	1939-03-26	1939-10-27
1940	1940-02-27	1940-10-21
1941	1941-04-17	1941-10-22

Every Fixed Threshold

Fixed thresholds at Austin
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	41	182	1925	139
35 C (95 F): Days	41	129	1925	40
40 C (104 F): Days	12	30	1923	1
90 F (32.2 C): Days	41	159	1925	92
100 F (37.8 C): Days	35	69	1925	2
0 C (32 F): Ice days (max	17	5	1930	2
0 C (32 F): Frost days (min	42	54	1925	6
-10 C (14 F): Days with min	10	5	1899	1
20 C (68 F): Tropical nights (min	42	152	1905	145
25 C (77 F): Days with min	40	48	1906	11
10 mm (0.39 in): Days with 10 mm or more rain	34	40	1919	30
25 mm (0.98 in): Days with 25 mm or more rain	34	25	1919	16
50 mm (1.97 in): Days with 50 mm or more rain	34	7	1933	4
100 mm (3.94 in): Days with 100 mm or more rain	12	3	1913	1
200 mm (7.87 in): Days with 200 mm or more rain	3	1	1915	1
10 cm (3.9 in): Days with 10 cm or more snowfall	2	2	1937	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1898.

Download the Data

Data for Austin 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).

Austin Threshold Days by Year (USC00410420)

Key Facts for Austin Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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