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Almanac · Rochester, MN · Climate Almanac
📖 Climate Almanac

Rochester, MN

43.904°N, 92.492°W · station RSTthr · 1886–2026 · 141 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.
-40-20020406080100JanFebMarAprMayJunJulAugSepOctNovDeccoldestsince.com · hottestsince.com
Record high Record low Normal high–low band (1991–2020) hottest ever 108°F · coldest ever -42°F

Records by Month

MonthRecord highRecord low
Jan58°Jan 25, 1944-42°Jan 7, 1887
Feb69°Feb 26, 2024-35°Feb 2, 1996
Mar82°Mar 24, 1910-31°Mar 1, 1962
Apr92°Apr 24, 20095°Apr 6, 1982
May106°May 31, 193421°May 3, 1910
Jun105°Jun 27, 193431°Jun 9, 1937
Jul108°Jul 14, 193640°Jul 17, 1911
Aug100°Aug 3, 193032°Aug 30, 1915
Sep100°Sep 6, 191322°Sep 28, 1893
Oct93°Oct 3, 1997-6°Oct 25, 1887
Nov77°Nov 1, 1893-24°Nov 28, 1887
Dec64°Dec 4, 2017-33°Dec 19, 1983
All-time108°Jul 14, 1936-42°Jan 7, 1887

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

DateRecordSetStanding
Sep 2484°1886140yrs
May 989°1887139yrs
Dec 1758°1890136yrs
Dec 1850°1890136yrs
Dec 2952°1890136yrs
Jun 1495°1892134yrs
Apr 274°1893133yrs
Sep 395°1893133yrs
Oct 3177°1893133yrs
Nov 573°1893133yrs
Jan 144°1894132yrs
Jan 1350°1894132yrs

Oldest-standing record lows

DateRecordSetStanding
Aug 3038°1886140yrs
Sep 3024°1886140yrs
Oct 3110°1886140yrs
Dec 1-18°1886140yrs
Jan 7-42°1887139yrs
Apr 47°1887139yrs
Jul 2244°1887139yrs
Jul 2345°1887139yrs
Oct 24-6°1887139yrs
Oct 254°1887139yrs
Nov 26-12°1887139yrs
Nov 27-24°1887139yrs

All-Time Extremes

Hottest ever

108°F
1936-07-14

Coldest ever

-42°F
1887-01-07

Longest heat streak

14 days
≥ 90°F · ended 1936-07-18

The Warming Trend

Rochester's annual mean temperature, each year a stripe — blue below the 1991–2020 average, red above.
1887: 42.0°F (-3.0 vs 1991–2020)1888: 39.0°F (-6.0 vs 1991–2020)1892: 43.4°F (-1.6 vs 1991–2020)1909: 45.6°F (+0.6 vs 1991–2020)1910: 44.9°F (-0.1 vs 1991–2020)1911: 42.6°F (-2.4 vs 1991–2020)1912: 42.5°F (-2.5 vs 1991–2020)1913: 45.3°F (+0.3 vs 1991–2020)1914: 45.8°F (+0.8 vs 1991–2020)1915: 44.1°F (-0.9 vs 1991–2020)1916: 45.0°F (+0.0 vs 1991–2020)1917: 40.6°F (-4.4 vs 1991–2020)1918: 44.7°F (-0.3 vs 1991–2020)1919: 44.6°F (-0.4 vs 1991–2020)1920: 46.5°F (+1.5 vs 1991–2020)1929: 43.1°F (-1.9 vs 1991–2020)1930: 45.7°F (+0.7 vs 1991–2020)1931: 49.9°F (+4.9 vs 1991–2020)1932: 44.1°F (-0.9 vs 1991–2020)1933: 45.4°F (+0.4 vs 1991–2020)1934: 46.2°F (+1.2 vs 1991–2020)1935: 43.9°F (-1.1 vs 1991–2020)1936: 43.3°F (-1.7 vs 1991–2020)1937: 41.0°F (-4.0 vs 1991–2020)1938: 45.3°F (+0.3 vs 1991–2020)1939: 46.0°F (+1.0 vs 1991–2020)1940: 42.8°F (-2.2 vs 1991–2020)1941: 46.8°F (+1.8 vs 1991–2020)1942: 44.6°F (-0.4 vs 1991–2020)1943: 43.2°F (-1.8 vs 1991–2020)1944: 45.7°F (+0.7 vs 1991–2020)1945: 42.7°F (-2.3 vs 1991–2020)1946: 46.2°F (+1.2 vs 1991–2020)1947: 44.5°F (-0.5 vs 1991–2020)1948: 45.0°F (-0.0 vs 1991–2020)1949: 46.1°F (+1.1 vs 1991–2020)1950: 41.5°F (-3.5 vs 1991–2020)1951: 41.3°F (-3.7 vs 1991–2020)1952: 44.5°F (-0.5 vs 1991–2020)1953: 45.9°F (+0.9 vs 1991–2020)1954: 45.6°F (+0.6 vs 1991–2020)1955: 44.9°F (-0.1 vs 1991–2020)1956: 43.8°F (-1.2 vs 1991–2020)1957: 44.8°F (-0.2 vs 1991–2020)1958: 43.9°F (-1.1 vs 1991–2020)1959: 44.2°F (-0.8 vs 1991–2020)1960: 43.9°F (-1.1 vs 1991–2020)1961: 43.9°F (-1.1 vs 1991–2020)1962: 42.9°F (-2.1 vs 1991–2020)1963: 43.9°F (-1.1 vs 1991–2020)1964: 44.8°F (-0.2 vs 1991–2020)1965: 42.5°F (-2.5 vs 1991–2020)1966: 42.5°F (-2.5 vs 1991–2020)1967: 42.3°F (-2.7 vs 1991–2020)1968: 43.8°F (-1.2 vs 1991–2020)1969: 42.6°F (-2.4 vs 1991–2020)1970: 43.2°F (-1.8 vs 1991–2020)1971: 43.8°F (-1.2 vs 1991–2020)1972: 41.1°F (-3.9 vs 1991–2020)1973: 45.4°F (+0.4 vs 1991–2020)1974: 43.8°F (-1.2 vs 1991–2020)1975: 44.4°F (-0.6 vs 1991–2020)1976: 43.7°F (-1.3 vs 1991–2020)1977: 44.7°F (-0.3 vs 1991–2020)1978: 41.7°F (-3.3 vs 1991–2020)1979: 42.3°F (-2.7 vs 1991–2020)1980: 44.5°F (-0.5 vs 1991–2020)1981: 44.9°F (-0.1 vs 1991–2020)1982: 43.6°F (-1.4 vs 1991–2020)1983: 43.6°F (-1.4 vs 1991–2020)1984: 43.4°F (-1.6 vs 1991–2020)1985: 42.1°F (-2.9 vs 1991–2020)1986: 44.1°F (-0.9 vs 1991–2020)1987: 47.5°F (+2.5 vs 1991–2020)1988: 44.2°F (-0.8 vs 1991–2020)1989: 42.4°F (-2.6 vs 1991–2020)1990: 46.0°F (+1.0 vs 1991–2020)1991: 44.8°F (-0.2 vs 1991–2020)1992: 43.9°F (-1.1 vs 1991–2020)1993: 42.0°F (-3.0 vs 1991–2020)1994: 43.9°F (-1.1 vs 1991–2020)1995: 43.9°F (-1.1 vs 1991–2020)1996: 40.9°F (-4.1 vs 1991–2020)1997: 43.1°F (-1.9 vs 1991–2020)1998: 47.5°F (+2.5 vs 1991–2020)1999: 45.9°F (+0.9 vs 1991–2020)2000: 44.6°F (-0.4 vs 1991–2020)2001: 45.3°F (+0.3 vs 1991–2020)2002: 45.3°F (+0.3 vs 1991–2020)2003: 44.4°F (-0.6 vs 1991–2020)2004: 45.1°F (+0.1 vs 1991–2020)2005: 46.3°F (+1.3 vs 1991–2020)2006: 47.8°F (+2.8 vs 1991–2020)2007: 46.2°F (+1.2 vs 1991–2020)2008: 43.6°F (-1.4 vs 1991–2020)2009: 44.0°F (-1.0 vs 1991–2020)2010: 46.1°F (+1.1 vs 1991–2020)2011: 46.1°F (+1.1 vs 1991–2020)2012: 50.3°F (+5.3 vs 1991–2020)2013: 43.5°F (-1.5 vs 1991–2020)2014: 41.9°F (-3.1 vs 1991–2020)2015: 46.2°F (+1.2 vs 1991–2020)2016: 47.5°F (+2.5 vs 1991–2020)2017: 45.9°F (+0.9 vs 1991–2020)2018: 44.1°F (-0.9 vs 1991–2020)2019: 42.8°F (-2.2 vs 1991–2020)2020: 45.6°F (+0.6 vs 1991–2020)2021: 47.0°F (+2.0 vs 1991–2020)2022: 43.8°F (-1.2 vs 1991–2020)2023: 47.5°F (+2.5 vs 1991–2020)2024: 48.7°F (+3.7 vs 1991–2020)2025: 46.5°F (+1.5 vs 1991–2020)18872025annual mean temperature · warmer ▲ redder

Days Above / Below the Mark

6 days ≥90°F in 2026 · normal 9 · record 38 in 1934
91 days ≤32°F in 2026 · normal 132 · record 193 in 1917

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.
Show me the data — the full daily record
DateRec HighYrNorm HiNorm LoRec LowYr
Jan 144°189424°10°-29°1974
Jan 245°199824°9°-27°1979
Jan 341°194424°9°-28°1911
Jan 443°200724°9°-32°1920
Jan 555°201223°9°-27°1912
Jan 646°193323°8°-28°1912
Jan 751°200323°8°-42°1887
Jan 852°200323°8°-33°1912
Jan 946°200223°8°-30°1977
Jan 1054°201222°7°-28°1982
Jan 1144°191522°7°-29°1977
Jan 1244°196122°6°-39°1912
Jan 1350°189422°6°-39°1912
Jan 1444°191522°6°-26°1893
Jan 1550°191422°6°-36°1888
Jan 1648°191422°6°-29°1977
Jan 1749°189422°6°-25°1954
Jan 1846°191922°6°-31°1967
Jan 1947°191922°6°-32°1970
Jan 2047°194422°6°-26°1970
Jan 2145°196822°6°-39°1888
Jan 2246°196422°6°-37°1888
Jan 2350°198122°6°-34°1935
Jan 2455°198122°6°-34°1935
Jan 2558°194422°7°-23°1936
Jan 2652°200223°7°-30°1917
Jan 2750°191923°8°-26°1935
Jan 2851°202523°8°-33°1915
Jan 2946°202423°8°-33°1951
Jan 3056°202524°8°-40°1951
Jan 3152°202424°8°-31°1918
Feb 153°193124°8°-31°1918
Feb 248°201224°8°-35°1996
Feb 351°193424°8°-32°1912
Feb 449°196424°8°-29°1912
Feb 551°202424°8°-29°1979
Feb 650°202424°8°-28°1936
Feb 752°198724°9°-21°1971
Feb 855°202424°9°-27°1933
Feb 949°195425°9°-31°1888
Feb 1048°197725°9°-29°1888
Feb 1155°196125°9°-25°1929
Feb 1254°199026°10°-24°1917
Feb 1348°202626°10°-18°2020
Feb 1458°195426°10°-24°2020
Feb 1553°202627°11°-23°2021
Feb 1659°193127°11°-34°1936
Feb 1763°198128°12°-22°1910
Feb 1860°198128°12°-19°2006
Feb 1959°193028°12°-30°1929
Feb 2060°193028°12°-21°1966
Feb 2160°193029°13°-32°1936
Feb 2259°193029°13°-25°1936
Feb 2356°193029°13°-19°1910
Feb 2460°193130°14°-24°1913
Feb 2558°200030°14°-28°1940
Feb 2669°202430°14°-28°1940
Feb 2757°197630°14°-22°1935
Feb 2853°200030°15°-25°1962
Feb 2956°196431°15°-31°1962
Mar 156°199231°16°-19°1913
Mar 264°202432°16°-17°1913
Mar 372°202432°16°-17°2019
Mar 461°200032°17°-14°1893
Mar 565°200033°17°-17°1960
Mar 669°198734°18°-13°1945
Mar 775°200035°19°-16°1960
Mar 868°200036°19°-9°1975
Mar 963°197736°20°-11°1918
Mar 1062°201237°21°-15°1948
Mar 1174°202438°22°-29°1948
Mar 1269°202438°22°-10°1948
Mar 1374°202539°23°-11°1993
Mar 1474°201239°23°-11°1960
Mar 1574°201240°24°-12°1956
Mar 1678°201241°24°-10°1909
Mar 1781°201241°25°-8°1993
Mar 1880°201242°25°-5°1989
Mar 1977°201242°26°-8°1965
Mar 2075°202643°26°-6°1965
Mar 2177°193843°27°-4°1943
Mar 2275°201244°28°-12°1888
Mar 2382°191044°28°-9°1974
Mar 2475°200745°28°1°1940
Mar 2577°200745°29°-4°1937
Mar 2674°194646°29°-4°1996
Mar 2780°202546°29°0°1969
Mar 2879°198647°29°-7°1969
Mar 2977°191048°30°-4°1969
Mar 3078°197848°30°-2°1934
Mar 3183°201049°30°10°1975
Apr 175°198149°30°11°1954
Apr 274°189350°31°6°1954
Apr 381°202150°31°6°1995
Apr 483°199150°31°7°1887
Apr 589°199151°32°5°1982
Apr 683°199151°32°8°2018
Apr 784°193152°32°9°1936
Apr 876°193052°33°9°1972
Apr 985°197752°33°13°1973
Apr 1082°197753°34°12°1973
Apr 1187°202354°34°13°1952
Apr 1283°202354°35°13°1962
Apr 1387°200354°35°18°1962
Apr 1487°200255°35°14°2020
Apr 1584°191556°36°8°2020
Apr 1684°198556°36°16°2020
Apr 1789°198557°37°16°1983
Apr 1884°198557°37°18°1988
Apr 1985°198758°37°20°1988
Apr 2084°194658°38°18°1934
Apr 2191°198059°38°21°1930
Apr 2291°198059°38°20°1910
Apr 2392°200959°38°19°1910
Apr 2487°193959°39°17°1934
Apr 2584°196260°39°24°1919
Apr 2686°197760°39°19°1933
Apr 2783°191061°40°25°1913
Apr 2888°191061°40°23°1958
Apr 2989°195262°41°17°1956
Apr 3091°202162°41°11°1956
May 190°195962°42°26°1909
May 291°194963°42°21°1910
May 391°191863°43°24°1910
May 489°195263°43°26°1957
May 594°193464°43°22°1989
May 690°201664°44°24°1929
May 786°191665°44°29°1955
May 890°193465°44°22°1966
May 989°188766°45°23°1966
May 1089°191166°45°26°1946
May 1194°202267°46°26°1939
May 1289°194067°46°26°1997
May 1397°201367°46°26°1937
May 1493°193267°46°26°1920
May 1589°193468°47°29°1929
May 1692°193668°47°29°1930
May 1795°193468°47°32°1915
May 1898°193468°48°23°1929
May 1996°193469°48°30°1954
May 2092°194870°49°30°1892
May 2188°196470°49°30°1963
May 2292°196471°50°25°1931
May 2394°201071°50°31°1930
May 2490°201871°51°29°1934
May 2591°193972°51°31°1961
May 2693°191472°51°35°1910
May 2795°200672°52°34°1958
May 2895°200673°52°31°1932
May 2996°193473°52°31°1930
May 30106°193473°53°33°1931
May 3195°193474°53°35°1972
Jun 194°193474°54°37°1985
Jun 296°201175°54°35°1888
Jun 393°193475°54°32°1945
Jun 495°202175°55°35°1945
Jun 597°201175°55°39°1983
Jun 6101°201176°55°33°1935
Jun 7101°198576°56°35°1910
Jun 893°197376°56°31°1937
Jun 996°191177°56°36°1913
Jun 1096°201777°57°36°1972
Jun 1195°195377°57°34°1936
Jun 1298°198777°58°36°1933
Jun 1397°198778°58°33°1933
Jun 1495°189278°58°35°1917
Jun 1599°191378°58°36°1908
Jun 1694°193378°59°35°1915
Jun 1794°195378°59°39°1960
Jun 1897°191379°59°41°1892
Jun 1999°193379°59°40°1969
Jun 2094°191079°59°38°1992
Jun 2199°198879°59°37°1992
Jun 22100°193479°59°43°1935
Jun 2397°191079°59°38°1972
Jun 2499°193479°59°40°1972
Jun 2599°193479°60°43°1920
Jun 26105°193479°60°44°1950
Jun 27100°193180°60°40°1911
Jun 2899°193180°60°44°1911
Jun 29100°193180°60°41°1943
Jun 3097°191080°60°42°1892
Jul 198°191180°60°44°1929
Jul 2102°191180°60°44°1917
Jul 398°194980°60°43°1967
Jul 4104°191180°60°42°1967
Jul 596°195480°60°45°1972
Jul 6105°193680°61°43°1934
Jul 7102°193680°61°44°1984
Jul 899°193680°61°45°1908
Jul 9101°193681°61°45°1931
Jul 10105°193681°61°44°1945
Jul 11104°193681°61°46°1918
Jul 12107°193681°62°43°1975
Jul 13107°193681°62°47°1964
Jul 14108°193681°62°42°1930
Jul 15100°193681°62°44°1933
Jul 16101°193680°61°40°1911
Jul 17102°193680°61°45°1911
Jul 1897°194080°62°44°1929
Jul 19102°194080°62°45°1912
Jul 20100°193480°61°45°1911
Jul 21101°193480°61°42°1947
Jul 22101°193480°61°44°1887
Jul 2399°193480°61°45°1887
Jul 2497°193180°61°48°1992
Jul 2599°195580°61°43°1911
Jul 26100°193180°60°48°1911
Jul 27100°195580°60°46°2013
Jul 2898°191680°60°46°1937
Jul 2999°191779°60°44°1918
Jul 30100°195579°60°43°1936
Jul 31102°198879°60°45°1960
Aug 199°198879°60°38°1920
Aug 2100°193079°60°40°1920
Aug 3100°194779°59°44°1929
Aug 499°194779°59°42°1912
Aug 596°194079°59°42°1948
Aug 695°194979°59°44°1936
Aug 797°193478°59°44°1972
Aug 898°191478°59°45°1932
Aug 999°193678°59°43°1972
Aug 1095°194778°59°41°1946
Aug 1195°194778°58°43°1946
Aug 1296°191878°58°40°1933
Aug 1394°194478°58°39°1933
Aug 1493°193078°58°37°1964
Aug 15100°193678°58°39°1933
Aug 1699°195578°58°44°1976
Aug 1798°194778°58°42°1915
Aug 1899°193678°58°40°1929
Aug 1998°191678°58°35°1950
Aug 2097°194778°58°40°1956
Aug 2195°191678°58°39°2004
Aug 2297°202378°58°38°1920
Aug 23100°194878°58°34°1934
Aug 24100°194878°58°36°1958
Aug 2597°194878°58°33°1934
Aug 2695°194878°58°39°1941
Aug 2796°195578°58°36°1893
Aug 2895°198478°57°34°1935
Aug 2996°194178°57°32°1915
Aug 3095°201277°57°38°1886
Aug 3194°193777°56°34°1909
Sep 194°192976°56°35°1909
Sep 294°193776°55°33°1974
Sep 395°189376°55°36°1974
Sep 494°191376°54°34°1918
Sep 5100°191375°54°38°1935
Sep 696°191375°54°34°1934
Sep 797°193174°53°35°1932
Sep 897°195574°53°37°1969
Sep 998°193174°53°29°1917
Sep 1094°193174°52°24°1917
Sep 1191°190873°52°30°1955
Sep 1294°194873°52°32°1953
Sep 1395°193972°51°32°1888
Sep 1496°193972°51°31°2011
Sep 1596°193972°51°28°1937
Sep 1694°195571°50°30°1943
Sep 1793°195571°50°26°1929
Sep 1892°194871°50°29°1916
Sep 1992°190870°49°28°1991
Sep 2092°190870°49°27°1918
Sep 2194°190869°48°24°1974
Sep 2295°190869°48°28°1989
Sep 2390°190869°47°27°1942
Sep 2484°188668°47°26°1893
Sep 2589°195668°46°26°1893
Sep 2686°190867°46°27°1984
Sep 2783°195667°45°22°1893
Sep 2886°195366°45°23°1967
Sep 2990°202366°45°24°1888
Sep 3090°202366°44°24°1886
Oct 190°195365°44°19°2003
Oct 293°199765°44°24°1936
Oct 386°202565°43°20°1935
Oct 485°193864°43°20°1935
Oct 589°199764°42°14°1935
Oct 687°191263°42°23°1976
Oct 787°201062°41°22°1976
Oct 890°201062°41°21°1915
Oct 985°193061°40°22°1987
Oct 1084°201561°40°17°1919
Oct 1185°197560°40°23°2006
Oct 1285°195660°39°15°1917
Oct 1387°194760°39°15°1917
Oct 1484°194759°38°16°1937
Oct 1584°195358°38°21°1937
Oct 1685°191058°38°18°1919
Oct 1784°195057°37°18°1976
Oct 1879°195356°37°16°1991
Oct 1982°195356°37°13°1972
Oct 2085°194755°36°12°1952
Oct 2181°202455°36°16°1930
Oct 2280°199254°36°15°1937
Oct 2376°196354°35°10°1936
Oct 2478°198953°35°-6°1887
Oct 2581°195552°34°4°1887
Oct 2676°196652°34°17°1913
Oct 2777°194051°34°11°1909
Oct 2880°195051°33°15°1909
Oct 2979°195050°33°12°1920
Oct 3078°195050°32°11°1988
Oct 3177°189349°32°10°1886
Nov 174°194449°31°8°1951
Nov 273°197848°31°4°1991
Nov 375°200848°30°-2°1991
Nov 474°200847°30°-4°1951
Nov 573°189346°29°-3°1991
Nov 673°194946°29°-5°1991
Nov 775°199946°28°0°2019
Nov 871°199945°28°2°1936
Nov 968°193044°28°1°1986
Nov 1075°201244°28°-6°1986
Nov 1166°191244°28°-1°1986
Nov 1271°199943°27°-4°1986
Nov 1369°202543°27°-3°1959
Nov 1467°195342°26°-5°1915
Nov 1571°195341°26°-6°1933
Nov 1668°191741°26°-4°1959
Nov 1769°193940°25°-5°2018
Nov 1868°193040°25°-1°1914
Nov 1965°193039°24°-3°1932
Nov 2069°199039°24°-8°1937
Nov 2170°201238°24°-8°1937
Nov 2264°201238°23°-11°1893
Nov 2361°201738°23°-11°1893
Nov 2456°193337°22°-12°1977
Nov 2561°191436°22°-20°1977
Nov 2664°191436°21°-12°1887
Nov 2762°190935°20°-24°1887
Nov 2862°199834°20°-20°1887
Nov 2959°196234°19°-18°1893
Nov 3062°196233°18°-12°1964
Dec 162°198233°18°-18°1886
Dec 259°196232°17°-22°1919
Dec 364°201732°17°-30°1940
Dec 461°200131°16°-10°1934
Dec 562°191631°16°-12°1977
Dec 656°193930°16°-28°1972
Dec 758°194630°16°-28°1972
Dec 852°191630°15°-22°1947
Dec 958°193929°15°-21°1919
Dec 1054°194929°14°-22°1934
Dec 1155°191328°14°-20°1936
Dec 1258°196828°14°-21°1942
Dec 1362°190828°14°-21°1917
Dec 1464°202128°14°-30°1919
Dec 1552°191328°14°-16°1932
Dec 1663°193928°14°-26°1932
Dec 1758°189027°13°-31°1983
Dec 1850°189027°13°-33°1983
Dec 1948°196727°13°-26°1983
Dec 2052°194127°13°-23°1989
Dec 2152°194126°13°-28°1916
Dec 2246°202326°12°-29°1983
Dec 2352°202326°12°-26°1983
Dec 2453°202326°12°-20°1990
Dec 2550°193626°12°-26°1914
Dec 2654°193625°11°-31°1950
Dec 2751°193625°11°-18°1917
Dec 2851°198425°11°-29°1887
Dec 2952°189024°10°-28°1887
Dec 3049°196524°10°-28°1946
Dec 3140°200424°10°-27°1976
Forecast & records → Rochester station On This Day → national almanac
Data: NOAA/NWS Threaded Extremes (threadex) · normals 1991–2020 · part of Weather Trader