29.544°N, 98.484°W · station SATthr · 1885–2026 · 142 years of record
The Almanac Ribbon
Every day of the year at San Antonio: the record high and record low ever set (outer lines), the everyday normal range (shaded band), and the full record envelope behind it.
Record highRecord lowNormal high–low band (1991–2020)hottest ever 111°F · coldest ever 0°F
Records by Month
Month
Record high
Record low
Jan
89°Jan 30, 1971
0°Jan 31, 1949
Feb
100°Feb 21, 1996
4°Feb 12, 1899
Mar
100°Mar 28, 1971
19°Mar 2, 1980
Apr
101°Apr 19, 1996
31°Apr 3, 1987
May
104°May 31, 2004
42°May 4, 2013
Jun
108°Jun 29, 2013
48°Jun 3, 1919
Jul
107°Jul 13, 2020
60°Jul 11, 1905
Aug
110°Aug 28, 2011
57°Aug 24, 1891
Sep
111°Sep 5, 2000
41°Sep 27, 1942
Oct
99°Oct 7, 1937
27°Oct 31, 1993
Nov
94°Nov 4, 1988
21°Nov 29, 1976
Dec
90°Dec 25, 1955
6°Dec 23, 1989
All-time
111°Sep 5, 2000
0°Jan 31, 1949
Longest-Standing Records
The daily records that have held the longest — set in the earliest years and never beaten since. Highs power San Antonio on hottestsince.com; lows on coldestsince.com.
Oldest-standing record highs
Date
Record
Set
Standing
Oct 30
89°
1885
141yrs
Mar 15
93°
1887
139yrs
Mar 19
92°
1890
136yrs
Mar 26
93°
1890
136yrs
Oct 29
90°
1890
136yrs
Jul 6
104°
1891
135yrs
Apr 3
93°
1893
133yrs
Sep 8
102°
1893
133yrs
Sep 9
101°
1893
133yrs
Sep 10
103°
1893
133yrs
Sep 11
103°
1893
133yrs
Sep 30
97°
1893
133yrs
Oldest-standing record lows
Date
Record
Set
Standing
Jul 18
65°
1885
141yrs
Jan 7
14°
1886
140yrs
Jan 8
6°
1886
140yrs
Jan 9
12°
1886
140yrs
Jun 23
63°
1886
140yrs
Jul 13
68°
1886
140yrs
Nov 17
22°
1886
140yrs
Dec 3
26°
1886
140yrs
Dec 4
17°
1886
140yrs
Jan 15
11°
1888
138yrs
Jan 16
14°
1888
138yrs
Jul 17
69°
1888
138yrs
All-Time Extremes
Hottest ever
111°F
2000-09-05
Coldest ever
0°F
1949-01-31
Longest heat streak
119 days
≥ 90°F · ended 2023-10-04
The Warming Trend
San Antonio's annual mean temperature, each year a stripe — blue below the 1991–2020 average, red above.
Days Above / Below the Mark
94 days ≥90°F in 2026 · normal 114 · record 162 in 2025
8 days ≤32°F in 2026 · normal 16 · record 43 in 1966
The Full Record
Every day of the year, record and normal high & low with the year each record was set. Type to filter, click a column to sort.