Climate averages 1991–2020
Allentown weather
in October.
A mild, wet month: the 6th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a mild month in Allentown: daytime highs average 17.2°C and nights cool to about 7.8°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 100 mm of rain on roughly 9 days, which makes October a wet month (the 8th 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 Bethlehem, United States (10 km away). In October its highs average 17.1°C, about as warm as Allentown, with 105 mm of rain.
Among the 498 cities listed in the United States, Allentown ranks joint 356th of 498 for the warmest October highs and joint 409th of 498 for the driest October (rainfall, lowest first). The mean October high of those 498 cities is 21.4°C; Allentown is 4.2°C cooler than that mean.
From October to November, average highs fall by 6.4°C to 10.8°C, and monthly rainfall falls from 100 mm to 81 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
Allentown climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 2.8°C-5.7°C | -5.7°C | 87 | 9.5 | 9.610 h |
| February | 4.4°C-5.2°C | -5.2°C | 77 | 9.1 | 10.611 h |
| March | 9.1°C-1.3°C | -1.3°C | 103 | 11.0 | 11.912 h |
| April | 15.8°C4.5°C | 4.5°C | 99 | 10.6 | 13.313 h |
| May | 21.3°C10.4°C | 10.4°C | 95 | 11.5 | 14.414 h |
| June | 26.2°C15.6°C | 15.6°C | 103 | 11.3 | 15.015 h |
| July | 29.1°C18.6°C | 18.6°C | 98 | 11.2 | 14.815 h |
| August | 28.1°C17.9°C | 17.9°C | 93 | 10.1 | 13.814 h |
| September | 24.1°C14.1°C | 14.1°C | 113 | 8.8 | 12.513 h |
| October, selected | 17.2°C7.8°C | 7.8°C | 100 | 8.9 | 11.211 h |
| November | 10.8°C2.1°C | 2.1°C | 81 | 8.0 | 10.010 h |
| December | 5.4°C-2.4°C | -2.4°C | 101 | 9.4 | 9.39 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
- Bethlehem, United States in OctoberUnited States · 10 kmHigh 17.1°C · Low 7.8°C · 105 mm rain
- Reading, United States in OctoberUnited States · 48 kmHigh 17.7°C · Low 8.9°C · 95 mm rain
- Trenton in OctoberUnited States · 77 kmHigh 18.2°C · Low 9.5°C · 92 mm rain
- Philadelphia in OctoberUnited States · 78 kmHigh 18.6°C · Low 10.0°C · 91 mm rain
- Camden in OctoberUnited States · 82 kmHigh 18.6°C · Low 10.0°C · 90 mm rain
- Cherry Hill in OctoberUnited States · 84 kmHigh 18.5°C · Low 10.3°C · 90 mm rain
- Scranton in OctoberUnited States · 90 kmHigh 15.7°C · Low 7.5°C · 93 mm rain
- Edison in OctoberUnited States · 92 kmHigh 17.8°C · Low 9.7°C · 95 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 Allentown) is explained once on the Allentown year overview and on the Sources, method and limits page.