Austin Threshold Days by Year (USC00220325)

15 fixed thresholds counted per year at Austin (USC00220325): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Austin Thresholds

Austin: days with a maximum temperature at or above 30 C (86 F) in 35 years, most in 1921 with 138.
Austin: days with a maximum temperature at or above 35 C (95 F) in 35 years, most in 1930 with 57.
Austin: days with a maximum temperature at or above 90 F (32.2 C) in 35 years, most in 1921 with 111.
Austin: nights with a minimum temperature at or below 0 C (32 F) in 35 years, most in 1912 with 80.
15 fixed thresholds have at least one qualifying day at Austin.

Days at or above 30 C (86 F)

35 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 138 in 1921.

Days at or above 30 C (86 F) per year at Austin
Year	Days	Decade average
1896	113	119
1897	127	119
1898	126	119
1899	110	119
1900	99	102.2
1901	107	102.2
1902	97	102.2
1903	78	102.2
1904	112	102.2
1905	91	102.2
1906	116	102.2
1907	113	102.2
1908	104	102.2
1909	105	102.2
1910	113	111.2
1911	128	111.2
1912	102	111.2
1913	106	111.2
1914	117	111.2
1915	122	111.2
1916	106	111.2
1917	97	111.2
1918	119	111.2
1919	102	111.2
1920	86	102
1921	138	102
1922	98	102
1923	91	102
1924	93	102
1927	106	102
1929	102	102
1930	111	116.3
1931	118	116.3
1932	120	116.3
1933	116	116.3

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
1896	1896-04-22	1896-10-27
1897	1897-05-19	1897-10-18
1898	1898-03-22	1898-10-10
1899	1899-04-27	1899-10-14
1900	1900-05-12	1900-10-04
1901	1901-04-26	1901-09-24
1902	1902-05-02	1902-09-22
1903	1903-05-20	1903-10-06
1904	1904-05-03	1904-10-10
1905	1905-04-27	1905-10-18
1906	1906-04-10	1906-10-23
1907	1907-03-19	1907-10-04
1908	1908-03-18	1908-10-20
1909	1909-06-05	1909-11-04
1910	1910-03-23	1910-10-19
1911	1911-05-11	1911-10-15
1912	1912-05-09	1912-10-11
1913	1913-04-18	1913-10-10
1914	1914-04-17	1914-09-22
1915	1915-04-16	1915-10-17
1916	1916-05-07	1916-10-16
1917	1917-04-23	1917-10-18
1918	1918-03-13	1918-10-12
1919	1919-06-06	1919-10-10
1920	1920-04-17	1920-10-23
1921	1921-05-12	1921-11-24
1922	1922-04-06	1922-10-03
1923	1923-05-20	1923-10-01
1924	1924-04-16	1924-10-20
1927	1927-05-08	1927-10-29
1929	1929-04-07	1929-10-18
1930	1930-04-16	1930-10-09
1931	1931-04-16	1931-11-13
1932	1932-03-01	1932-10-19
1933	1933-05-07	1933-10-21

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	35	138	1921	116
35 C (95 F): Days	35	57	1930	17
40 C (104 F): Days	5	8	1930	2
90 F (32.2 C): Days	35	111	1921	78
100 F (37.8 C): Days	17	31	1930	1
0 C (32 F): Ice days (max	28	16	1917	2
0 C (32 F): Frost days (min	35	80	1912	33
-10 C (14 F): Days with min	22	11	1899	3
-20 C (-4 F): Days with min	4	2	1899	2
20 C (68 F): Tropical nights (min	35	113	1896	93
25 C (77 F): Days with min	22	32	1896	3
10 mm (0.39 in): Days with 10 mm or more rain	34	59	1923	45
25 mm (0.98 in): Days with 25 mm or more rain	34	27	1912	19
50 mm (1.97 in): Days with 50 mm or more rain	34	11	1906	7
100 mm (3.94 in): Days with 100 mm or more rain	12	2	1902	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1896.

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 (USC00220325)

Key Facts for Austin Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related