New Brunswick weather in August: New Brunswick, New Jersey: normal highs, lows, rain and records for August
New Brunswick in August has a normal high of 85°F and a normal low of 64°F, a daily mean of 74°F, falling from 86°F on the 1st to 83°F by the 31st. Measurable precipitation falls on 10 days in a normal August, 4.66 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 29°C and low of 18°C, 118 mm of precipitation in August.
- NOAA stationNew Brunswick (3 mi SE)
- Station IDUSC00286055
- Location40.47°N 74.42°W
- Elevation111 ft (34 m)
- From the center1 miles
- Population57,487
- Jan 40° 23°
- Feb 43° 24°
- Mar 51° 31°
- Apr 63° 41°
- May 72° 51°
- Jun 81° 60°
- Jul 87° 66°
- Aug 85° 64°
- Sep 78° 57°
- Oct 67° 44°
- Nov 56° 35°
- Dec 45° 28°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is New Brunswick in August?
The normal high is 85°F and the normal low 64°F, for a daily mean of 74.3°F. August is 1.8°F cooler than July and 6.9°F warmer than September. August is the 2nd warmest month of the year in New Brunswick and the 3rd wettest. Across the month the normal high falls 3°F, from 86°F on August 1 to 83°F on August 31. From one year to the next August's mean temperature typically moves about 2.1°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 72°F and 76°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 35%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 86°F | 66°F | 35% | 23% |
| August 8 | 85°F | 65°F | 35% | 23% |
| August 15 | 85°F | 64°F | 34% | 22% |
| August 22 | 84°F | 63°F | 31% | 20% |
| August 31 | 83°F | 62°F | 29% | 19% |
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 | 86°F | 66°F | 35% | 23% | 14 h 20 min |
| August 2 | 86°F | 65°F | 35% | 23% | 14 h 20 min |
| August 3 | 86°F | 65°F | 35% | 23% | 14 h 20 min |
| August 4 | 86°F | 65°F | 35% | 23% | 14 h 10 min |
| August 5 | 86°F | 65°F | 35% | 23% | 14 h 10 min |
| August 6 | 86°F | 65°F | 35% | 23% | 14 h 10 min |
| August 7 | 86°F | 65°F | 35% | 23% | 14 h 10 min |
| August 8 | 85°F | 65°F | 35% | 23% | 14 h 10 min |
| August 9 | 85°F | 65°F | 35% | 23% | 14 h |
| August 10 | 85°F | 65°F | 35% | 22% | 14 h |
| August 11 | 85°F | 65°F | 34% | 22% | 14 h |
| August 12 | 85°F | 65°F | 34% | 22% | 14 h |
| August 13 | 85°F | 65°F | 34% | 22% | 13 h 50 min |
| August 14 | 85°F | 64°F | 34% | 22% | 13 h 50 min |
| August 15 | 85°F | 64°F | 34% | 22% | 13 h 50 min |
| August 16 | 85°F | 64°F | 33% | 22% | 13 h 50 min |
| August 17 | 85°F | 64°F | 33% | 21% | 13 h 50 min |
| August 18 | 85°F | 64°F | 33% | 21% | 13 h 40 min |
| August 19 | 85°F | 64°F | 33% | 21% | 13 h 40 min |
| August 20 | 85°F | 64°F | 32% | 21% | 13 h 40 min |
| August 21 | 84°F | 64°F | 32% | 21% | 13 h 40 min |
| August 22 | 84°F | 63°F | 31% | 20% | 13 h 30 min |
| August 23 | 84°F | 63°F | 31% | 20% | 13 h 30 min |
| August 24 | 84°F | 63°F | 31% | 20% | 13 h 30 min |
| August 25 | 84°F | 63°F | 30% | 20% | 13 h 30 min |
| August 26 | 84°F | 63°F | 30% | 20% | 13 h 20 min |
| August 27 | 84°F | 63°F | 30% | 19% | 13 h 20 min |
| August 28 | 84°F | 62°F | 30% | 19% | 13 h 20 min |
| August 29 | 83°F | 62°F | 29% | 19% | 13 h 20 min |
| August 30 | 83°F | 62°F | 29% | 19% | 13 h 10 min |
| August 31 | 83°F | 62°F | 29% | 19% | 13 h 10 min |
- Normal high
- 85°FAugust average
- Normal low
- 64°FAugust average
- Precipitation
- 4.66 inmonth total
- Days with precipitation
- 100.01 inch or more
- Days at 90°F or more
- 6
- Daylight
- 14 h 20 min to 13 h 10 minAugust 1 to August 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 26
- Sunshine
- 78%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00286055; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in New Brunswick in August?
On a given August day the chance of 0.01 inch or more is 33% on average, highest around August 1 (35%). In all, 4.66 in falls on 10 days of a normal August, 1 of them with an inch or more.
In a normal August in New Brunswick, 6 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00286055.
What are the records for August in New Brunswick?
The warmest August temperature on New Brunswick's official record (since 1893) is 106°F, on August 7, 1918; the coldest is 40°F, on August 29, 1982. The wettest August brought 17.43 in (2011).
The August mean against the 1991-2020 normal of 74.3°F: 2021 76.4°F (+2.1), 2022 78.4°F (+4.1), 2023 73.7°F (−0.6), 2024 74.7°F (+0.4), 2025 71.4°F (−2.9), 2026 76.0°F (+1.7). 4 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 76.4°F | +2.1°F | 6.27 in |
| 2022 | 78.4°F | +4.1°F | 4.58 in |
| 2023 | 73.7°F | −0.6°F | 4.99 in |
| 2024 | 74.7°F | +0.4°F | 8.26 in |
| 2025 | 71.4°F | −2.9°F | 1.33 in |
| 2026 | 76.0°F | +1.7°F | 9.21 in |
Source: records: ACIS, NWS threaded record NBRN4thr; recent months: ACIS, station USC00286055. Records and recent months use complete months only.
How does August in New Brunswick compare across New Jersey?
Across the 33 places PlainClimate covers in New Jersey, August normal highs run from 82°F in Andover to 87°F in Lambertville; New Brunswick's is 85°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- New Brunswick in July87°F by day, 66°F at night
- New Brunswick in September78°F by day, 57°F at night
- New Brunswick through the yearEvery month, frost dates, records and recent years
- New Jersey in AugustThe statewide normal and the warmest and coolest places
- Lambertville: New Jersey's warmest Augustnormal high 87°F