35.034°N, 85.200°W · station CHAthr · 1879–2026 · 148 years of record
The Almanac Ribbon
Every day of the year at Chattanooga: 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 107°F · coldest ever -10°F
Records by Month
Month
Record high
Record low
Jan
78°Jan 10, 1949
-10°Jan 31, 1966
Feb
82°Feb 22, 2023
-10°Feb 13, 1899
Mar
89°Mar 21, 1907
2°Mar 7, 1899
Apr
93°Apr 30, 1942
25°Apr 2, 1881
May
99°May 29, 1941
34°May 1, 1879
Jun
107°Jun 30, 2012
39°Jun 1, 1889
Jul
107°Jul 1, 2012
51°Jul 15, 1967
Aug
105°Aug 4, 1947
50°Aug 31, 1946
Sep
104°Sep 5, 1925
36°Sep 30, 1967
Oct
100°Oct 2, 2019
22°Oct 30, 1952
Nov
86°Nov 1, 2016
4°Nov 25, 1950
Dec
78°Dec 7, 1951
-2°Dec 13, 1962
All-time
107°Jun 30, 2012
-10°Feb 13, 1899
Longest-Standing Records
The daily records that have held the longest — set in the earliest years and never beaten since. Highs power Chattanooga on hottestsince.com; lows on coldestsince.com.
Oldest-standing record highs
Date
Record
Set
Standing
Jan 28
73°
1879
147yrs
Aug 11
100°
1881
145yrs
Feb 1
72°
1887
139yrs
Apr 11
89°
1887
139yrs
Apr 12
88°
1887
139yrs
Nov 25
74°
1887
139yrs
Jan 6
73°
1888
138yrs
Dec 13
73°
1889
137yrs
Dec 18
73°
1889
137yrs
Dec 27
73°
1889
137yrs
Jan 7
75°
1890
136yrs
Feb 5
75°
1890
136yrs
Oldest-standing record lows
Date
Record
Set
Standing
Apr 30
34°
1879
147yrs
Dec 29
6°
1880
146yrs
Dec 30
3°
1880
146yrs
Dec 31
4°
1880
146yrs
Mar 31
26°
1881
145yrs
Apr 1
25°
1881
145yrs
Apr 4
28°
1881
145yrs
Dec 7
12°
1882
144yrs
May 21
42°
1883
143yrs
May 23
45°
1883
143yrs
Nov 15
17°
1883
143yrs
Jan 5
0°
1884
142yrs
All-Time Extremes
Hottest ever
107°F
2012-06-30
Coldest ever
-10°F
1899-02-13
Longest heat streak
38 days
≥ 90°F · ended 1993-08-02
The Warming Trend
Chattanooga's annual mean temperature, each year a stripe — blue below the 1991–2020 average, red above.
Days Above / Below the Mark
62 days ≥90°F in 2026 · normal 47 · record 102 in 2016
34 days ≤32°F in 2026 · normal 58 · record 98 in 1968
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.