New York · THREADEX · 1872–2026

Rochester, NY

43.117°N, 77.675°W · station ROCthr · 155 years of record
64°F
forecast low · Jul 17

7-Day Forecast

NWS NDFD forecast low temperature for Rochester.
70°TUE7/1475°WED7/1566°THU7/1664°FRI7/1764°SAT7/1866°SUN7/19

This Day in History · Jul 17

Today ranks

#92 / 153
coldest Jul 17 in 153 yrs of record

Coldest Jul 17 ever

48°F
set in 1888

Mildest Jul 17 ever

75°F
set in 1900

Coldest Jul 17 — Year by Year

Every year's low on Jul 17 at Rochester. The forecast line shows where today lands; the ringed bar is the coldest on record.
4862751872: 71°F1873: 64°F1874: 53°F1875: 65°F1876: 59°F1877: 66°F1878: 73°F1879: 57°F1880: 65°F1881: 62°F1882: 67°F1884: 52°F1885: 70°F1886: 59°F1887: 68°F1888: 48°F1889: 65°F1890: 58°F1891: 55°F1892: 54°F1893: 69°F1894: 63°F1895: 64°F1896: 57°F1897: 68°F1898: 59°F1899: 64°F1900: 75°F1901: 73°F1902: 60°F1903: 55°F1904: 62°F1905: 69°F1906: 65°F1907: 71°F1908: 55°F1909: 61°F1910: 59°F1911: 61°F1912: 59°F1913: 64°F1914: 69°F1915: 63°F1916: 72°F1917: 63°F1918: 62°F1919: 56°F1920: 49°F1921: 63°F1922: 71°F1923: 58°F1924: 61°F1925: 54°F1926: 62°F1927: 62°F1928: 65°F1929: 59°F1930: 62°F1931: 65°F1932: 59°F1933: 60°F1934: 55°F1935: 58°F1936: 60°F1937: 66°F1938: 69°F1939: 54°F1940: 62°F1941: 60°F1942: 66°F1943: 62°F1944: 63°F1945: 52°F1946: 51°F1947: 67°F1948: 60°F1949: 65°F1950: 70°F1951: 62°F1952: 64°F1953: 64°F1954: 53°F1955: 68°F1956: 58°F1957: 52°F1958: 52°F1959: 62°F1960: 53°F1961: 63°F1962: 55°F1963: 57°F1964: 57°F1965: 65°F1966: 54°F1967: 50°F1968: 72°F1969: 74°F1970: 54°F1971: 52°F1972: 67°F1973: 55°F1974: 52°F1975: 63°F1976: 62°F1977: 72°F1978: 59°F1979: 65°F1980: 72°F1981: 61°F1982: 74°F1983: 58°F1984: 63°F1985: 50°F1986: 60°F1987: 51°F1988: 64°F1989: 59°F1990: 65°F1991: 63°F1992: 52°F1993: 53°F1994: 59°F1995: 70°F1996: 62°F1997: 66°F1998: 66°F1999: 69°F2000: 62°F2001: 62°F2002: 68°F2003: 53°F2004: 62°F2005: 73°F2006: 73°F2007: 57°F2008: 62°F2009: 59°F2010: 67°F2011: 64°F2012: 67°F2013: 71°F2014: 54°F2015: 56°F2016: 62°F2017: 66°F2018: 68°F2019: 72°F2020: 71°F2021: 59°F2022: 58°F2023: 65°F2024: 67°F2025: 65°F64° forecast187220251888

The Numbers

Forecast low · Jul 1764°F
Coldest this date since2022
This-date record48°F
This-date rank#92 of 153
Coldest at any time since2026
All-time record-22°F (1934)
Odds to tie/break0.0% (daily)
Period of record1872–2026

Record Book

The hottest and coldest ever recorded at Rochester in each calendar month, and for the whole 1872–2026 record — with the year each was set.
MonthRecord HighRecord Low
Jan74°F1950-17°F1994
Feb73°F1997-22°F1934
Mar86°F1905-9°F2014
Apr93°F19707°F1923
May94°F197426°F1970
Jun100°F195335°F1945
Jul102°F193642°F1963
Aug99°F194836°F1965
Sep99°F195328°F1947
Oct91°F195119°F1879
Nov81°F19501°F1875
Dec72°F1982-16°F1942
All-time102°F1936-22°F1934

2026 Records So Far

Records set or tied at Rochester so far this year — through Jul 11.

Record Highs in 2026

2 broke
plus 0 tied — daily record highs set this year

Record Lows in 2026

0 broke
plus 0 tied — daily record lows set this year

Cold Streaks

Current run

0 days
consecutive days with a low ≤ 32°F

Longest ever

105 days
record run, ended Mar 19 1959

So far in 2026

79 days
days with a low ≤ 32°F this year

Climate Normals

Normal low & low by month, from Rochester's own 1991–2020 record. Today's normal low: 62°F · forecast is +2° vs normal.
Jan: 33°FJan: 18°FFeb: 34°FFeb: 19°FMar: 43°FMar: 26°FApr: 56°FApr: 36°FMay: 69°FMay: 48°FJun: 77°FJun: 57°FJul: 82°FJul: 62°FAug: 80°FAug: 60°FSep: 73°FSep: 53°FOct: 60°FOct: 43°FNov: 48°FNov: 33°FDec: 38°FDec: 25°FJFMAMJJASOND

Sun & Location

Sun & Daylight Today

Sunrise4:43 AM
Sunset7:50 PM
Solar noon12:16 PM
Daylight15h 07m · losing 8 min/wk
Local standard time (no DST), level horizon.

Location

43.12°N, 77.67°W

Nearby Stations

Buffalo, NY54 mi WSyracuse, NY79 mi EBinghamton, NY106 mi SEWilliamsport, PA135 mi SErie, PA146 mi WAvoca, PA158 mi SE

The Last 6 Weeks

Rochester's observed daily low for the last six weeks — a white ring marks any day that broke or tied its daily record for that date.
Rochester, NY — last six weeks of daily low

2026 So Far

Every day this year against Rochester's own record — the record low, the normal, and the full span ever seen. A shareable look at where the year stands.
Rochester, NY — 2026 daily low trace
Download year chart

Every Day Since 1872

Each cell is one day's low at Rochester, coloured by temperature — 155 years of record, so heat waves read as warm streaks and cold snaps as blue.
Rochester, NY daily low heat map 1872–2026

Days Below the Mark

How many days a year hit a given low at Rochester — counted through Jul 17 each year, so you can see whether 2026 is running cold. Pick a threshold:
79 days ≤32°F so far in 2026 — tied for the 131st most in 155 years. Normal for this point: 88. Record: 105 in 1883.

Share Card

A ready-to-share summary of Rochester's outlook — post it, or link this page.
Rochester, NY cold share card
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part of Weather Trader · supported by Substack Subscribers · data: NWS NDFD forecast + NOAA/ACIS ThreadEx records · updated 2026-07-13T14:03:07Z
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