Brockton weather in August: Brockton, Massachusetts: normal highs, lows, rain and records for August
Brockton in August has a normal high of 83°F and a normal low of 62°F, a daily mean of 72°F, falling from 85°F on the 1st to 80°F by the 31st. Measurable precipitation falls on 9 days in a normal August, 3.60 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 28°C and low of 17°C, 91 mm of precipitation in August.
- NOAA stationBrockton
- Station IDUSC00190860
- Location42.05°N 71.01°W
- Elevation75 ft (23 m)
- From the center3 miles
- Population105,788
- Jan 39° 21°
- Feb 41° 22°
- Mar 48° 29°
- Apr 59° 38°
- May 70° 47°
- Jun 78° 57°
- Jul 84° 63°
- Aug 83° 62°
- Sep 75° 54°
- Oct 64° 43°
- Nov 54° 34°
- Dec 44° 26°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Brockton in August?
The normal high is 83°F and the normal low 62°F, for a daily mean of 72.4°F. August is 1.4°F cooler than July and 7.6°F warmer than September. August is the 2nd warmest month of the year in Brockton and the 10th wettest. Across the month the normal high falls 5°F, from 85°F on August 1 to 80°F on August 31. From one year to the next August's mean temperature typically moves about 2.0°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 70°F and 74°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 32%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 85°F | 64°F | 32% | 20% |
| August 8 | 84°F | 63°F | 32% | 19% |
| August 15 | 83°F | 62°F | 31% | 19% |
| August 22 | 82°F | 61°F | 29% | 18% |
| August 31 | 80°F | 59°F | 29% | 18% |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 1, coldest night August 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 85°F | 64°F | 32% | 20% | 14 h 30 min |
| August 2 | 84°F | 64°F | 32% | 20% | 14 h 30 min |
| August 3 | 84°F | 64°F | 32% | 19% | 14 h 20 min |
| August 4 | 84°F | 63°F | 32% | 19% | 14 h 20 min |
| August 5 | 84°F | 63°F | 32% | 19% | 14 h 20 min |
| August 6 | 84°F | 63°F | 32% | 19% | 14 h 20 min |
| August 7 | 84°F | 63°F | 32% | 19% | 14 h 10 min |
| August 8 | 84°F | 63°F | 32% | 19% | 14 h 10 min |
| August 9 | 84°F | 63°F | 31% | 19% | 14 h 10 min |
| August 10 | 84°F | 63°F | 31% | 19% | 14 h 10 min |
| August 11 | 84°F | 63°F | 31% | 19% | 14 h 10 min |
| August 12 | 84°F | 63°F | 31% | 19% | 14 h |
| August 13 | 84°F | 63°F | 31% | 19% | 14 h |
| August 14 | 83°F | 63°F | 31% | 19% | 14 h |
| August 15 | 83°F | 62°F | 31% | 19% | 14 h |
| August 16 | 83°F | 62°F | 31% | 19% | 13 h 50 min |
| August 17 | 83°F | 62°F | 31% | 19% | 13 h 50 min |
| August 18 | 83°F | 62°F | 30% | 19% | 13 h 50 min |
| August 19 | 83°F | 62°F | 30% | 19% | 13 h 50 min |
| August 20 | 83°F | 62°F | 30% | 18% | 13 h 40 min |
| August 21 | 82°F | 62°F | 30% | 18% | 13 h 40 min |
| August 22 | 82°F | 61°F | 29% | 18% | 13 h 40 min |
| August 23 | 82°F | 61°F | 29% | 18% | 13 h 40 min |
| August 24 | 82°F | 61°F | 29% | 18% | 13 h 30 min |
| August 25 | 82°F | 61°F | 29% | 18% | 13 h 30 min |
| August 26 | 82°F | 61°F | 29% | 18% | 13 h 30 min |
| August 27 | 81°F | 60°F | 29% | 18% | 13 h 30 min |
| August 28 | 81°F | 60°F | 29% | 18% | 13 h 20 min |
| August 29 | 81°F | 60°F | 29% | 18% | 13 h 20 min |
| August 30 | 81°F | 60°F | 29% | 18% | 13 h 20 min |
| August 31 | 80°F | 59°F | 29% | 18% | 13 h 10 min |
- Normal high
- 83°FAugust average
- Normal low
- 62°FAugust average
- Precipitation
- 3.60 inmonth total
- Days with precipitation
- 90.01 inch or more
- Days at 90°F or more
- 5
- Daylight
- 14 h 30 min to 13 h 10 minAugust 1 to August 31
- Days at 70°F or more
- 30
- Days at 80°F or more
- 22
- Sunshine
- 78%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00190860; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Brockton in August?
On a given August day the chance of 0.01 inch or more is 30% on average, highest around August 1 (32%). In all, 3.60 in falls on 9 days of a normal August, 1 of them with an inch or more.
In a normal August in Brockton, 5 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00190860.
What are the records for August in Brockton?
The warmest August temperature on this station's record (since 1894) is 104°F, on August 28, 1948; the coldest is 37°F, on August 30, 1965. The wettest August brought 16.47 in (1955).
The August mean against the 1991-2020 normal of 72.4°F: 2021 77.5°F (+5.1), 2022 78.4°F (+6.0), 2023 72.7°F (+0.3), 2024 73.2°F (+0.8), 2025 71.3°F (−1.1). 4 of 5 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 77.5°F | +5.1°F | 6.44 in |
| 2022 | 78.4°F | +6.0°F | 3.38 in |
| 2023 | 72.7°F | +0.3°F | 4.98 in |
| 2024 | 73.2°F | +0.8°F | 5.21 in |
| 2025 | 71.3°F | −1.1°F | 2.72 in |
Source: records: ACIS, station USC00190860; recent months: ACIS, station USC00190860. Records and recent months use complete months only.
How does August in Brockton compare across Massachusetts?
Across the 35 places PlainClimate covers in Massachusetts, August normal highs run from 76°F in East Sandwich to 85°F in Maynard; Brockton's is 83°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.