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New Jersey · THREADEX · 1865–2026

Trenton, NJ

40.277°N, 74.816°W · station TTNthr · 162 years of record
88°F
forecast high · Sep 1

7-Day Forecast

NWS NDFD forecast high temperature for Trenton.
88°TUE9/177°WED9/285°THU9/384°FRI9/481°SAT9/578°SUN9/677°MON9/7

This Day in History

Every year's high on each of the next 7 forecast dates at Trenton — toggle a day below. The forecast line shows where it lands; the ringed bar is the hottest on record.

Ranks

#21 / 154
warmest Sep 1 in 154 yrs of record

Warmest Sep 1 ever

97°F
set in 2010

Coolest Sep 1 ever

64°F
set in 1869
Forecast high 88°F — 21st warmest Sep 1 of 154 years · record 97°F (2010) · warmest since 2016.
1865: 90°F1866: 83°F1867: 72°F1868: 87°F1869: 64°F1870: 84°F1871: 73°F1872: 70°F1873: 88°F1874: 80°F1875: 84°F1876: 84°F1877: 84°F1878: 88°F1879: 82°F1880: 77°F1887: 76°F1888: 84°F1889: 80°F1890: 75°F1891: 76°F1892: 82°F1893: 71°F1894: 82°F1895: 78°F1896: 72°F1897: 84°F1898: 96°F1899: 88°F1900: 85°F1901: 78°F1902: 86°F1903: 71°F1904: 75°F1905: 78°F1906: 74°F1907: 76°F1908: 84°F1909: 76°F1910: 77°F1912: 68°F1913: 86°F1914: 87°F1915: 68°F1916: 87°F1917: 75°F1918: 79°F1919: 68°F1920: 86°F1921: 86°F1922: 81°F1923: 83°F1924: 92°F1925: 87°F1926: 77°F1927: 68°F1928: 78°F1929: 91°F1930: 84°F1931: 85°F1932: 94°F1933: 78°F1934: 72°F1935: 76°F1936: 72°F1937: 90°F1938: 80°F1939: 82°F1940: 85°F1941: 92°F1942: 81°F1943: 93°F1944: 85°F1945: 89°F1946: 80°F1947: 80°F1948: 80°F1949: 79°F1950: 87°F1951: 86°F1952: 76°F1953: 95°F1954: 76°F1955: 82°F1956: 86°F1957: 85°F1958: 78°F1959: 87°F1960: 77°F1961: 92°F1962: 91°F1963: 78°F1964: 87°F1965: 81°F1966: 85°F1967: 71°F1968: 80°F1969: 91°F1970: 73°F1971: 76°F1972: 86°F1973: 93°F1974: 87°F1975: 69°F1976: 74°F1977: 86°F1978: 77°F1979: 82°F1980: 90°F1981: 82°F1982: 79°F1983: 85°F1984: 85°F1985: 74°F1986: 75°F1987: 74°F1988: 78°F1989: 86°F1990: 82°F1991: 74°F1992: 82°F1993: 92°F1994: 79°F1995: 86°F1996: 82°F1997: 82°F1998: 83°F1999: 79°F2000: 85°F2001: 79°F2002: 65°F2003: 68°F2004: 81°F2005: 84°F2006: 66°F2007: 81°F2008: 86°F2009: 75°F2010: 97°F2011: 82°F2012: 89°F2013: 87°F2014: 87°F2015: 91°F2016: 91°F2017: 71°F2018: 80°F2019: 80°F2020: 75°F2021: 75°F2022: 87°F2023: 77°F2024: 81°F2025: 79°F88° forecast60657075808590951001870188018901900191019201930194019501960197019801990200020102020
📖 Trenton's full Climate Almanac →

The Numbers

Forecast high · Sep 188°F
Hottest this date since2016
This-date record97°F
This-date rank#21 of 154
Hottest at any time since2026
All-time record106°F (1936)
Odds to tie/break0.0% (daily)
Period of record1865–2026

Record Book

The hottest and coldest ever recorded at Trenton in each calendar month, and for the whole 1865–2026 record — with the year each was set.
MonthRecord HighRecord Low
Jan73°FJan 14, 1932-16°FJan 22, 1984
Feb78°FFeb 21, 2018-14°FFeb 9, 1934
Mar87°FMar 30, 19980°FMar 10, 1984
Apr93°FApr 27, 191511°FApr 1, 1923
May99°FMay 23, 191131°FMay 9, 1985
Jun100°FJun 29, 193439°FJun 3, 1986
Jul106°FJul 9, 193646°FJul 1, 1988
Aug105°FAug 7, 191839°FAug 29, 1986
Sep101°FSep 10, 198334°FSep 25, 1997
Oct94°FOct 5, 194121°FOct 29, 1985
Nov83°FNov 1, 19509°FNov 30, 1875
Dec76°FDec 7, 1998-8°FDec 30, 1880
All-time106°FJul 9, 1936-16°FJan 22, 1984

2026 Records So Far

Records set or tied at Trenton so far this year — through Aug 30.

Record Highs in 2026

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

Record Lows in 2026

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

Record Warm Nights & Cold Days

Two more daily records, kept separate from the rankings: the warmest a night has ever stayed (record high minimum) and the coldest a day has ever gotten (record low maximum) — the flip side of the usual record high and low.

Warmest low ever

84°F
record high minimum — the night it never cooled · Aug 11, 1895

Coldest high ever

3°F
record low maximum — the day it never warmed · Feb 10, 1899
MonthWarmest lowColdest high
Jan57°FJan 4, 19503°FJan 21, 1985
Feb57°FFeb 21, 20183°FFeb 10, 1899
Mar62°FMar 30, 197718°FMar 18, 1967
Apr70°FApr 19, 189632°FApr 8, 2003
May75°FMay 31, 189543°FMay 5, 1917
Jun80°FJun 26, 195252°FJun 2, 1907
Jul83°FJul 23, 201162°FJul 3, 1933
Aug84°FAug 11, 189559°FAug 2, 1875
Sep77°FSep 2, 189850°FSep 28, 1984
Oct74°FOct 4, 189838°FOct 30, 1925
Nov68°FNov 10, 188223°FNov 30, 1929
Dec61°FDec 24, 20156°FDec 30, 1917
All-time84°FAug 11, 18953°FFeb 10, 1899

Hot Streaks

Current run

0 days
consecutive days with a high ≥ 90°F

Longest ever

11 days
record run, ended Jul 6 1901

So far in 2026

18 days
days with a high ≥ 90°F this year

Climate Normals

Normal high & low by month, from Trenton's own 1991–2020 record. Today's normal high: 82°F · forecast is +6° vs normal.
Jan: 40°FJan: 24°FFeb: 43°FFeb: 26°FMar: 51°FMar: 32°FApr: 63°FApr: 42°FMay: 73°FMay: 52°FJun: 81°FJun: 61°FJul: 86°FJul: 66°FAug: 84°FAug: 65°FSep: 77°FSep: 57°FOct: 66°FOct: 46°FNov: 55°FNov: 36°FDec: 45°FDec: 29°FJFMAMJJASOND

Sun & Location

Sun & Daylight Today

Sunrise5:26 AM
Sunset6:31 PM
Solar noon11:59 AM
Daylight13h 05m · losing 18 min/wk
Local standard time (no DST), level horizon.

Location

40.28°N, 74.82°W

Nearby Stations

Philadelphia, PA35 mi SWAllentown, PA42 mi NWNewark, NJ44 mi NENew York-Central Park, NY56 mi NEAtlantic City, NJ58 mi SWilmington, DE59 mi SW

The Last 6 Weeks

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

2026 So Far

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

Every Day Since 1865

Each cell is one day's high at Trenton, coloured by temperature — 162 years of record, so heat waves read as warm streaks and cold snaps as blue.
Trenton, NJ daily high heat map 1865–2026

Days Above the Mark

How many days a year hit a given high at Trenton — counted through Sep 1 each year, so you can see whether 2026 is running hot. Pick a threshold:
18 days ≥90°F so far in 2026 — tied for the 60th most in 162 years. Normal for this point: 17. Record: 48 in 2010.

Share Card

A ready-to-share summary of Trenton's outlook — post it, or link this page.
Trenton, NJ hot share card
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