Trenton weather in October: Trenton, New Jersey: normal highs, lows, rain and records for October
Trenton in October has a normal high of 66°F and a normal low of 46°F, a daily mean of 56°F, falling from 71°F on the 1st to 60°F by the 31st. Measurable precipitation falls on 10 days in a normal October, 3.79 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 19°C and low of 8°C, 96 mm of precipitation and 0 cm of snow in October.
- NOAA stationTrenton-Mercer Airport
- Station IDUSW00014792
- Location40.28°N 74.82°W
- Elevation184 ft (56 m)
- From the center5 miles
- Population91,193
- Jan 40° 24°
- Feb 43° 26°
- Mar 51° 33°
- Apr 63° 42°
- May 72° 52°
- Jun 81° 61°
- Jul 86° 67°
- Aug 84° 65°
- Sep 77° 58°
- Oct 66° 46°
- Nov 55° 36°
- Dec 44° 29°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Trenton in October?
The normal high is 66°F and the normal low 46°F, for a daily mean of 55.7°F. October is 11.7°F cooler than September and 10.3°F warmer than November. October is the 6th warmest month of the year in Trenton and the 8th wettest. Across the month the normal high falls 11°F, from 71°F on October 1 to 60°F on October 31. From one year to the next October's mean temperature typically moves about 2.5°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 53°F and 58°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 32%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| October 1 | 71°F | 52°F | 32% | 20% |
| October 8 | 69°F | 49°F | 32% | 20% |
| October 15 | 66°F | 46°F | 31% | 19% |
| October 22 | 63°F | 43°F | 30% | 19% |
| October 31 | 60°F | 40°F | 29% | 19% |
Every day of October: normal high, low and chance of precipitation (warmest afternoon October 1, coldest night October 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| October 1 | 71°F | 52°F | 32% | 20% | 11 h 50 min |
| October 2 | 71°F | 52°F | 32% | 20% | 11 h 50 min |
| October 3 | 71°F | 51°F | 32% | 20% | 11 h 40 min |
| October 4 | 70°F | 51°F | 32% | 20% | 11 h 40 min |
| October 5 | 70°F | 50°F | 32% | 20% | 11 h 40 min |
| October 6 | 69°F | 50°F | 32% | 20% | 11 h 40 min |
| October 7 | 69°F | 50°F | 32% | 20% | 11 h 30 min |
| October 8 | 69°F | 49°F | 32% | 20% | 11 h 30 min |
| October 9 | 68°F | 49°F | 32% | 20% | 11 h 30 min |
| October 10 | 68°F | 48°F | 32% | 20% | 11 h 30 min |
| October 11 | 67°F | 48°F | 32% | 20% | 11 h 20 min |
| October 12 | 67°F | 47°F | 32% | 20% | 11 h 20 min |
| October 13 | 67°F | 47°F | 32% | 20% | 11 h 20 min |
| October 14 | 66°F | 47°F | 32% | 19% | 11 h 20 min |
| October 15 | 66°F | 46°F | 31% | 19% | 11 h 10 min |
| October 16 | 65°F | 46°F | 31% | 19% | 11 h 10 min |
| October 17 | 65°F | 45°F | 31% | 19% | 11 h 10 min |
| October 18 | 65°F | 45°F | 31% | 19% | 11 h |
| October 19 | 64°F | 45°F | 31% | 19% | 11 h |
| October 20 | 64°F | 44°F | 31% | 19% | 11 h |
| October 21 | 64°F | 44°F | 30% | 19% | 11 h |
| October 22 | 63°F | 43°F | 30% | 19% | 10 h 50 min |
| October 23 | 63°F | 43°F | 30% | 19% | 10 h 50 min |
| October 24 | 63°F | 43°F | 30% | 19% | 10 h 50 min |
| October 25 | 62°F | 42°F | 30% | 19% | 10 h 50 min |
| October 26 | 62°F | 42°F | 29% | 19% | 10 h 40 min |
| October 27 | 61°F | 42°F | 29% | 19% | 10 h 40 min |
| October 28 | 61°F | 41°F | 29% | 19% | 10 h 40 min |
| October 29 | 61°F | 41°F | 29% | 19% | 10 h 40 min |
| October 30 | 60°F | 41°F | 29% | 19% | 10 h 40 min |
| October 31 | 60°F | 40°F | 29% | 19% | 10 h 30 min |
- Normal high
- 66°FOctober average
- Normal low
- 46°FOctober average
- Precipitation
- 3.79 inmonth total
- Days with precipitation
- 100.01 inch or more
- Snowfall
- 0.1 inmonth total
- Nights at 32°F or colder
- 1
- Daylight
- 11 h 50 min to 10 h 30 minOctober 1 to October 31
- Days at 70°F or more
- 11
- Days at 80°F or more
- 2
- Sunshine
- 71%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014792; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Trenton in October?
On a given October day the chance of 0.01 inch or more is 31% on average, highest around October 4 (32%). In all, 3.79 in falls on 10 days of a normal October, 1 of them with an inch or more.
In a normal October in Trenton, 1 nights fall to freezing and snowfall averages 0.1 inches.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014792.
What are the records for October in Trenton?
The warmest October temperature on Trenton's official record (since 1865) is 94°F, on October 5, 1941; the coldest is 21°F, on October 29, 1985. The wettest October brought 11.21 in (2005); the snowiest, 3.2 inches (2011).
The October mean against the 1991-2020 normal of 55.7°F: 2021 61.1°F (+5.4), 2022 53.2°F (−2.5), 2023 57.6°F (+1.9), 2024 58.0°F (+2.3), 2025 56.3°F (+0.6). 4 of 5 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 61.1°F | +5.4°F | 3.62 in |
| 2022 | 53.2°F | −2.5°F | 6.04 in |
| 2023 | 57.6°F | +1.9°F | 1.17 in |
| 2024 | 58.0°F | +2.3°F | 0.00 in |
| 2025 | 56.3°F | +0.6°F | 2.15 in |
Source: records: ACIS, NWS threaded record TTNthr; recent months: ACIS, station USW00014792. Records and recent months use complete months only.
How does October in Trenton compare across New Jersey?
Across the 33 places PlainClimate covers in New Jersey, October normal highs run from 63°F in Andover to 71°F in Belleplain; Trenton's is 66°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.