Brockton, MA weather in August
Brockton is warm and often humid in August, with some rain: highs average 83°F and nights drop to about 62°F. Rain falls on about 9 days. This is the peak of the warm season in Brockton.
- Normal high
- 83°F
- Normal low
- 62°F
- Wet days
- 9
- 3.6 in total
- Muggy days
- 9
- dew point 65°F+
How August changes from start to finish
| August 1 | August 31 | |
|---|---|---|
| Normal high | 85°F | 80°F |
| Normal low | 64°F | 59°F |
| Chance of a wet day | 32% | 29% |
| Sunrise / sunset | 5:37 am / 8:03 pm | 6:08 am / 7:20 pm |
| Daylight | 14.4 h | 13.2 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical August day
- 6 am65°Fdew point 62°F
- 9 am74°Fdew point 62°F
- Noon78°Fdew point 62°F
- 3 pm78°Fdew point 62°F
- 6 pm73°Fdew point 62°F
- 9 pm67°Fdew point 63°F
NOAA hourly normals (local standard time) from Plymouth Muni Airport (19 mi away); average wind 6 mph; clear or few clouds in 28% of daytime hours, mostly cloudy or overcast in 47%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F6 of 31
- Hot dayshigh 90°F or more5 of 31
- Muggy daysdaily mean dew point 65°F or more9 of 31
- Wet daysat least 0.01 in of rain or melted snow9 of 31
- Notable rainat least 0.10 in6 of 31
- Freezing nightslow 32°F or below0 of 31
- Snow on the groundsnow depth 1 in or more0 of 31
Average days per August, counted from daily records for each year 1991-2020.
Rain in August
Normal precipitation is 3.6 in; a dry August brings about 1.9 in and a wet one about 5.0 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.
How August varies from year to year
- Warmest August, 1991-20202020: average high 89°F
- Coolest August2008: average high 78°F
- Wettest August1994: 8.2 in
- Driest August1993: 0.3 in
- Highest reading101°F (August 13, 2005)
- Lowest reading40°F (August 25, 2004)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
August compared with July and September
| July | August | September | |
|---|---|---|---|
| Normal high | 84°F | 83°F | 75°F |
| Normal low | 63°F | 62°F | 54°F |
| Wet days | 10 | 9 | 9 |
| Comfortable days | 4 | 6 | 16 |
| Daylight | 14.9 h | 13.8 h | 12.5 h |
Highs change by -1°F from July and -8°F into September.
Nearby alternatives in August
- Cooler: Nantucket, MA73 mi · high 76°F · 13 wet days
How Brockton ranks in August
- Normal high254th warmest of 378 cities; 3rd of 9 in Massachusetts
- Wet days206th driest of 378
- Comfortable days113th most of 341
What to pack for Brockton in August
- A rain jacket or umbrella – rain on about 9 days
Heating and cooling
August has 8 heating degree days and 238 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.
Questions
How hot is Brockton in August?
The normal high is 83°F and the normal low is 62°F. From 1991 to 2020 the hottest August reading was 101°F (August 13, 2005).
Does it rain a lot in Brockton in August?
About 9 days in August have at least 0.01 in of precipitation, and the normal total is 3.6 in. The wettest August in 1991-2020 was in 1994 (8.2 in); the driest was in 1993 (0.3 in).
Is August a good time to visit Brockton?
August ranks 6th of 12 months on our comfort score for Brockton (58 out of 100). It has about 6 comfortable days and about 5 days at 90°F or hotter. The best month is May.
Where the numbers come from
- Temperature, rain, snow depth and frost dates: Brockton (USC00190860), 2.5 mi SSE of the city center, 75 ft . NOAA normals and daily records, 1991-2020.
- Snowfall: Norton W (USC00195984), 9.9 mi SW of the city center, 95 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: Plymouth Muni Airport (USW00054769), 19 mi SE of the city center, 149 ft . NOAA normals and daily records, 1991-2020.
- Cloud cover: Boston Logan Intl Airport (USW00014739), 19 mi N of the city center, 12 ft (101 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Gen E L Logan International Airport (725090-14739), 19 mi N of the city center, 11 ft (102 ft lower than the city). Hourly observations, 1991-2020.