Climate averages 1991–2020

Fall River weather
in August.

A warm, wet month: the 2nd warmest and the joint 7th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 25.8°C Daytime mean, August
Average low 18.8°C Night-time mean, August
Rainfall 92 mm 10 days with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in Fall River · average highYear overview

August is a warm month in Fall River: daytime highs average 25.8°C and nights cool to about 18.8°C. By daytime temperature it is the 2nd warmest of the 12 months.

Expect about 92 mm of rain on roughly 10 days, which makes August a wet month (the joint 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 51 min on an average August day.

The nearest other city in this atlas is New Bedford (20 km away). In August its highs average 24.3°C, 1.5°C cooler than Fall River, with 87 mm of rain.

Among the 498 cities listed in the United States, Fall River ranks joint 456th of 498 for the warmest August highs and joint 332nd of 498 for the driest August (rainfall, lowest first). The mean August high of those 498 cities is 29.9°C; Fall River is 4.1°C cooler than that mean.

From August to September, average highs fall by 3.7°C to 22.0°C, and monthly rainfall falls from 92 mm to 91 mm.

The annual picture

August in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. -10-5051015202530 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1500

Averages 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

1991–2020
Monthly climate averages for Fall River, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 2.8°C-4.4°C-4.4°C929.99.510 h
February 3.7°C-3.9°C-3.9°C818.910.611 h
March 7.1°C-0.5°C-0.5°C11110.711.912 h
April 12.7°C4.8°C4.8°C9610.813.313 h
May 18.0°C10.1°C10.1°C7810.814.515 h
June 23.1°C15.5°C15.5°C869.715.115 h
July 26.5°C19.2°C19.2°C809.814.915 h
August, selected 25.8°C18.8°C18.8°C929.913.914 h
September 22.0°C15.3°C15.3°C918.412.513 h
October 16.2°C9.5°C9.5°C1049.411.111 h
November 10.6°C3.9°C3.9°C918.89.910 h
December 5.6°C-0.9°C-0.9°C11010.49.29 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

August in nearby cities

Distance from Fall River

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 limits

How 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.