Climate averages 1991–2020
Scranton weather
in September.
A warm, wet month: the 4th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Scranton: daytime highs average 22.6°C and nights cool to about 13.6°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 95 mm of rain on roughly 9 days, which makes September a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 31 min on an average September day.
The nearest other city in this atlas is Allentown (90 km away). In September its highs average 24.1°C, 1.5°C warmer than Scranton, with 113 mm of rain.
Among the 498 cities listed in the United States, Scranton ranks joint 424th of 498 for the warmest September highs and joint 371st of 498 for the driest September (rainfall, lowest first). The mean September high of those 498 cities is 26.9°C; Scranton is 4.3°C cooler than that mean.
From September to October, average highs fall by 6.8°C to 15.7°C, and monthly rainfall falls from 95 mm to 93 mm.
The annual picture
September in context
Monthly precipitation
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
Scranton climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 0.9°C-7.3°C | -7.3°C | 75 | 9.4 | 9.610 h |
| February | 2.5°C-6.8°C | -6.8°C | 64 | 9.1 | 10.611 h |
| March | 7.2°C-2.6°C | -2.6°C | 91 | 11.4 | 11.912 h |
| April | 14.2°C3.7°C | 3.7°C | 89 | 11.7 | 13.313 h |
| May | 20.0°C10.0°C | 10.0°C | 89 | 12.6 | 14.514 h |
| June | 24.6°C15.1°C | 15.1°C | 97 | 12.0 | 15.115 h |
| July | 27.4°C18.0°C | 18.0°C | 76 | 10.9 | 14.815 h |
| August | 26.5°C17.3°C | 17.3°C | 84 | 9.9 | 13.814 h |
| September, selected | 22.6°C13.6°C | 13.6°C | 95 | 9.3 | 12.513 h |
| October | 15.7°C7.5°C | 7.5°C | 93 | 9.6 | 11.111 h |
| November | 9.1°C1.7°C | 1.7°C | 77 | 8.7 | 9.910 h |
| December | 3.4°C-3.4°C | -3.4°C | 83 | 10.5 | 9.29 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet 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
September in nearby cities
- Allentown in SeptemberUnited States · 90 kmHigh 24.1°C · Low 14.1°C · 113 mm rain
- Bethlehem, United States in SeptemberUnited States · 91 kmHigh 24.1°C · Low 14.1°C · 109 mm rain
- Reading, United States in SeptemberUnited States · 121 kmHigh 24.7°C · Low 15.2°C · 108 mm rain
- Paterson in SeptemberUnited States · 136 kmHigh 23.9°C · Low 15.4°C · 110 mm rain
- Passaic in SeptemberUnited States · 143 kmHigh 23.9°C · Low 15.5°C · 102 mm rain
- Edison in SeptemberUnited States · 144 kmHigh 24.3°C · Low 15.9°C · 101 mm rain
- Newark in SeptemberUnited States · 146 kmHigh 24.2°C · Low 15.6°C · 102 mm rain
- Trenton in SeptemberUnited States · 154 kmHigh 24.7°C · Low 15.7°C · 101 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 Scranton) is explained once on the Scranton year overview and on the Sources, method and limits page.