Climate averages 1991–2020
Fall River weather
in September.
A warm, wet month: the 4th warmest and the joint 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Fall River: daytime highs average 22.0°C and nights cool to about 15.3°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 91 mm of rain on roughly 8 days, which makes September a wet month (the joint 5th 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 New Bedford (20 km away). In September its highs average 21.0°C, 1.0°C cooler than Fall River, with 88 mm of rain.
Among the 498 cities listed in the United States, Fall River ranks joint 459th of 498 for the warmest September highs and joint 343rd of 498 for the driest September (rainfall, lowest first). The mean September high of those 498 cities is 26.9°C; Fall River is 4.9°C cooler than that mean.
From September to October, average highs fall by 5.8°C to 16.2°C, and monthly rainfall rises from 91 mm to 104 mm.
The annual picture
September 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
Fall River 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-4.4°C | -4.4°C | 92 | 9.9 | 9.510 h |
| February | 3.7°C-3.9°C | -3.9°C | 81 | 8.9 | 10.611 h |
| March | 7.1°C-0.5°C | -0.5°C | 111 | 10.7 | 11.912 h |
| April | 12.7°C4.8°C | 4.8°C | 96 | 10.8 | 13.313 h |
| May | 18.0°C10.1°C | 10.1°C | 78 | 10.8 | 14.515 h |
| June | 23.1°C15.5°C | 15.5°C | 86 | 9.7 | 15.115 h |
| July | 26.5°C19.2°C | 19.2°C | 80 | 9.8 | 14.915 h |
| August | 25.8°C18.8°C | 18.8°C | 92 | 9.9 | 13.914 h |
| September, selected | 22.0°C15.3°C | 15.3°C | 91 | 8.4 | 12.513 h |
| October | 16.2°C9.5°C | 9.5°C | 104 | 9.4 | 11.111 h |
| November | 10.6°C3.9°C | 3.9°C | 91 | 8.8 | 9.910 h |
| December | 5.6°C-0.9°C | -0.9°C | 110 | 10.4 | 9.29 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
September in nearby cities
- New Bedford in SeptemberUnited States · 20 kmHigh 21.0°C · Low 16.0°C · 88 mm rain
- Warwick in SeptemberUnited States · 22 kmHigh 22.6°C · Low 15.0°C · 91 mm rain
- Providence in SeptemberUnited States · 25 kmHigh 22.9°C · Low 14.9°C · 91 mm rain
- Pawtucket in SeptemberUnited States · 27 kmHigh 23.1°C · Low 14.7°C · 89 mm rain
- Brockton in SeptemberUnited States · 44 kmHigh 22.1°C · Low 14.7°C · 89 mm rain
- Quincy in SeptemberUnited States · 63 kmHigh 21.9°C · Low 14.8°C · 88 mm rain
- Dorchester in SeptemberUnited States · 67 kmHigh 22.2°C · Low 14.4°C · 88 mm rain
- Newton in SeptemberUnited States · 71 kmHigh 22.6°C · Low 14.4°C · 85 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 Fall River) is explained once on the Fall River year overview and on the Sources, method and limits page.