35.334°N, 94.365°W · station FSMthr · 1882–2026 · 145 years of record
The Almanac Ribbon
Every day of the year at Fort Smith: 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 115°F · coldest ever -15°F
Records by Month
Month
Record high
Record low
Jan
81°Jan 19, 1952
-11°Jan 12, 1918
Feb
88°Feb 23, 2017
-15°Feb 12, 1899
Mar
95°Mar 22, 2026
7°Mar 11, 1948
Apr
96°Apr 18, 2006
22°Apr 3, 1975
May
99°May 31, 1934
34°May 1, 1903
Jun
106°Jun 20, 1936
47°Jun 3, 1964
Jul
111°Jul 13, 1954
50°Jul 6, 1972
Aug
115°Aug 3, 2011
45°Aug 24, 1891
Sep
109°Sep 4, 1998
33°Sep 29, 1967
Oct
96°Oct 1, 1938
22°Oct 30, 1917
Nov
89°Nov 18, 2025
8°Nov 29, 1976
Dec
84°Dec 27, 2025
-5°Dec 23, 1989
All-time
115°Aug 3, 2011
-15°Feb 12, 1899
Longest-Standing Records
The daily records that have held the longest — set in the earliest years and never beaten since. Highs power Fort Smith on hottestsince.com; lows on coldestsince.com.
Oldest-standing record highs
Date
Record
Set
Standing
Feb 14
78°
1883
143yrs
May 1
93°
1883
143yrs
May 6
92°
1883
143yrs
Nov 30
78°
1883
143yrs
Sep 22
98°
1884
142yrs
Oct 3
93°
1884
142yrs
Oct 5
95°
1884
142yrs
May 22
93°
1886
140yrs
May 27
96°
1886
140yrs
Apr 27
91°
1887
139yrs
Dec 12
78°
1889
137yrs
Dec 17
74°
1889
137yrs
Oldest-standing record lows
Date
Record
Set
Standing
Jun 5
52°
1882
144yrs
Sep 1
51°
1882
144yrs
Sep 22
40°
1883
143yrs
Jan 5
-5°
1884
142yrs
Apr 23
36°
1884
142yrs
Feb 10
1°
1885
141yrs
Oct 13
34°
1885
141yrs
Jan 8
-7°
1886
140yrs
Jan 9
-6°
1886
140yrs
Feb 4
2°
1886
140yrs
Feb 5
7°
1886
140yrs
Dec 4
8°
1886
140yrs
All-Time Extremes
Hottest ever
115°F
2011-08-03
Coldest ever
-15°F
1899-02-12
Longest heat streak
97 days
≥ 90°F · ended 2011-09-04
The Warming Trend
Fort Smith's annual mean temperature, each year a stripe — blue below the 1991–2020 average, red above.
Days Above / Below the Mark
83 days ≥90°F in 2026 · normal 76 · record 113 in 1954
32 days ≤32°F in 2026 · normal 64 · record 94 in 1960
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.