43.117°N, 77.675°W · station ROCthr · 1872–2026 · 155 years of record
The Almanac Ribbon
Every day of the year at Rochester: 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 102°F · coldest ever -22°F
Records by Month
Month
Record high
Record low
Jan
74°Jan 25, 1950
-17°Jan 16, 1994
Feb
73°Feb 21, 1997
-22°Feb 9, 1934
Mar
86°Mar 29, 1905
-9°Mar 6, 2014
Apr
93°Apr 30, 1970
7°Apr 1, 1923
May
94°May 14, 1974
26°May 7, 1970
Jun
100°Jun 21, 1953
35°Jun 1, 1945
Jul
102°Jul 9, 1936
42°Jul 9, 1963
Aug
99°Aug 26, 1948
36°Aug 30, 1965
Sep
99°Sep 3, 1953
28°Sep 28, 1947
Oct
91°Oct 5, 1951
19°Oct 25, 1879
Nov
81°Nov 1, 1950
1°Nov 30, 1875
Dec
72°Dec 3, 1982
-16°Dec 20, 1942
All-time
102°Jul 9, 1936
-22°Feb 9, 1934
Longest-Standing Records
The daily records that have held the longest — set in the earliest years and never beaten since. Highs power Rochester on hottestsince.com; lows on coldestsince.com.
Oldest-standing record highs
Date
Record
Set
Standing
Jan 4
69°
1874
152yrs
Dec 30
70°
1875
151yrs
Jan 1
68°
1876
150yrs
Jan 2
62°
1876
150yrs
Jan 10
56°
1876
150yrs
May 11
87°
1879
147yrs
May 12
89°
1879
147yrs
May 9
88°
1881
145yrs
Aug 29
96°
1881
145yrs
Aug 30
96°
1881
145yrs
Sep 4
96°
1881
145yrs
Sep 5
98°
1881
145yrs
Oldest-standing record lows
Date
Record
Set
Standing
Mar 4
-1°
1872
154yrs
Dec 22
-9°
1872
154yrs
Jan 29
-9°
1873
153yrs
Jan 30
-12°
1873
153yrs
Apr 11
20°
1874
152yrs
Apr 12
20°
1874
152yrs
Feb 7
-9°
1875
151yrs
Mar 22
-1°
1875
151yrs
Apr 16
19°
1875
151yrs
Apr 17
15°
1875
151yrs
Apr 18
21°
1875
151yrs
Apr 20
20°
1875
151yrs
All-Time Extremes
Hottest ever
102°F
1936-07-09
Coldest ever
-22°F
1934-02-09
Longest heat streak
9 days
≥ 90°F · ended 1973-09-05
The Warming Trend
Rochester's annual mean temperature, each year a stripe — blue below the 1991–2020 average, red above.
Days Above / Below the Mark
6 days ≥90°F in 2026 · normal 9 · record 32 in 1952
79 days ≤32°F in 2026 · normal 131 · record 158 in 1887
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.