Climate averages 1991–2020
Trenton weather
in October.
A mild, wet month: the 6th warmest and the joint 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a mild month in Trenton: daytime highs average 18.2°C and nights cool to about 9.5°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 92 mm of rain on roughly 8 days, which makes October a wet month (the joint 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 10 min on an average October day.
The nearest other city in this atlas is Cherry Hill (40 km away). In October its highs average 18.5°C, about as warm as Trenton, with 90 mm of rain.
Among the 498 cities listed in the United States, Trenton ranks joint 320th of 498 for the warmest October highs and joint 353rd of 498 for the driest October (rainfall, lowest first). The mean October high of those 498 cities is 21.4°C; Trenton is 3.2°C cooler than that mean.
From October to November, average highs fall by 6.1°C to 12.1°C, and monthly rainfall falls from 92 mm to 75 mm.
The annual picture
October in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Trenton climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 4.2°C-3.8°C | -3.8°C | 83 | 9.3 | 9.710 h |
| February | 5.8°C-3.4°C | -3.4°C | 77 | 8.9 | 10.611 h |
| March | 10.2°C0.3°C | 0.3°C | 106 | 10.3 | 11.912 h |
| April | 16.6°C5.9°C | 5.9°C | 92 | 10.6 | 13.213 h |
| May | 21.8°C11.6°C | 11.6°C | 88 | 11.4 | 14.414 h |
| June | 26.8°C16.9°C | 16.9°C | 102 | 10.8 | 15.015 h |
| July | 29.6°C20.0°C | 20.0°C | 106 | 11.3 | 14.715 h |
| August | 28.4°C19.3°C | 19.3°C | 102 | 10.4 | 13.814 h |
| September | 24.7°C15.7°C | 15.7°C | 101 | 9.2 | 12.512 h |
| October, selected | 18.2°C9.5°C | 9.5°C | 92 | 8.4 | 11.211 h |
| November | 12.1°C3.7°C | 3.7°C | 75 | 7.8 | 10.010 h |
| December | 6.7°C-0.9°C | -0.9°C | 102 | 9.4 | 9.49 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
October in nearby cities
- Cherry Hill in OctoberUnited States · 40 kmHigh 18.5°C · Low 10.3°C · 90 mm rain
- Edison in OctoberUnited States · 44 kmHigh 17.8°C · Low 9.7°C · 95 mm rain
- Camden in OctoberUnited States · 46 kmHigh 18.6°C · Low 10.0°C · 90 mm rain
- Philadelphia in OctoberUnited States · 46 kmHigh 18.6°C · Low 10.0°C · 91 mm rain
- Brick in OctoberUnited States · 54 kmHigh 18.0°C · Low 11.5°C · 95 mm rain
- Toms River in OctoberUnited States · 55 kmHigh 18.3°C · Low 11.2°C · 95 mm rain
- Staten Island in OctoberUnited States · 64 kmHigh 17.7°C · Low 9.9°C · 94 mm rain
- Bethlehem, United States in OctoberUnited States · 70 kmHigh 17.1°C · Low 7.8°C · 105 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Trenton) is explained once on the Trenton year overview and on the Sources, method and limits page.