39.847°N, 104.656°W · station DENthr · 1872–2026 · 155 years of record
The Almanac Ribbon
Every day of the year at Denver: 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 105°F · coldest ever -29°F
Records by Month
Month
Record high
Record low
Jan
76°Jan 27, 1888
-29°Jan 9, 1875
Feb
80°Feb 10, 2017
-25°Feb 8, 1936
Mar
87°Mar 25, 2026
-11°Mar 28, 1886
Apr
90°Apr 30, 1992
-2°Apr 2, 1975
May
95°May 26, 1942
19°May 3, 1907
Jun
105°Jun 25, 2012
30°Jun 2, 1951
Jul
105°Jul 20, 2005
42°Jul 31, 1873
Aug
105°Aug 8, 1878
40°Aug 22, 1904
Sep
101°Sep 5, 2020
17°Sep 29, 1985
Oct
90°Oct 1, 1892
-2°Oct 29, 1917
Nov
83°Nov 2, 2025
-18°Nov 29, 1877
Dec
79°Dec 5, 1939
-25°Dec 24, 1876
All-time
105°Aug 8, 1878
-29°Jan 9, 1875
Longest-Standing Records
The daily records that have held the longest — set in the earliest years and never beaten since. Highs power Denver on hottestsince.com; lows on coldestsince.com.
Oldest-standing record highs
Date
Record
Set
Standing
Jun 17
99°
1873
153yrs
Jun 21
98°
1874
152yrs
Jul 2
101°
1874
152yrs
Jul 3
102°
1874
152yrs
Aug 12
100°
1876
150yrs
Nov 10
76°
1876
150yrs
Jul 28
99°
1877
149yrs
Jul 13
100°
1878
148yrs
Aug 7
105°
1878
148yrs
Mar 28
79°
1879
147yrs
May 1
90°
1879
147yrs
Jan 1
67°
1882
144yrs
Oldest-standing record lows
Date
Record
Set
Standing
Jan 24
-18°
1872
154yrs
Jan 25
-20°
1872
154yrs
Jan 28
-22°
1872
154yrs
Jan 30
-10°
1872
154yrs
Jul 2
45°
1872
154yrs
Jul 4
45°
1872
154yrs
Jul 17
45°
1872
154yrs
Aug 9
45°
1872
154yrs
Aug 11
48°
1872
154yrs
Nov 14
-7°
1872
154yrs
Apr 22
17°
1873
153yrs
Apr 23
15°
1873
153yrs
All-Time Extremes
Hottest ever
105°F
1878-08-08
Coldest ever
-29°F
1875-01-09
Longest heat streak
24 days
≥ 90°F · ended 2008-08-05
The Warming Trend
Denver's annual mean temperature, each year a stripe — blue below the 1991–2020 average, red above.
Days Above / Below the Mark
59 days ≥90°F in 2026 · normal 32 · record 75 in 2020
68 days ≤32°F in 2026 · normal 147 · record 187 in 1984
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.