Amherst weather in August: Amherst, Massachusetts: normal highs, lows, rain and records for August
Amherst in August has a normal high of 82°F and a normal low of 58°F, a daily mean of 70°F, falling from 83°F on the 1st to 79°F by the 31st. Measurable precipitation falls on 10 days in a normal August, 4.12 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 28°C and low of 15°C, 105 mm of precipitation in August.
- NOAA stationAmherst
- Station IDUSC00190120
- Location42.39°N 72.54°W
- Elevation145 ft (44 m)
- Population40,989
- Jan 34° 14°
- Feb 37° 15°
- Mar 45° 24°
- Apr 58° 34°
- May 70° 45°
- Jun 78° 55°
- Jul 83° 60°
- Aug 82° 58°
- Sep 74° 50°
- Oct 62° 39°
- Nov 50° 29°
- Dec 39° 21°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Amherst in August?
The normal high is 82°F and the normal low 58°F, for a daily mean of 69.9°F. August is 1.8°F cooler than July and 7.6°F warmer than September. August is the 2nd warmest month of the year in Amherst and the 4th wettest. Across the month the normal high falls 4°F, from 83°F on August 1 to 79°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 68°F and 72°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 36%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 83°F | 60°F | 36% | 24% |
| August 8 | 82°F | 60°F | 35% | 23% |
| August 15 | 82°F | 59°F | 33% | 22% |
| August 22 | 81°F | 58°F | 31% | 20% |
| August 31 | 79°F | 56°F | 28% | 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 | 83°F | 60°F | 36% | 24% | 14 h 30 min |
| August 2 | 83°F | 60°F | 36% | 24% | 14 h 30 min |
| August 3 | 83°F | 60°F | 36% | 24% | 14 h 30 min |
| August 4 | 83°F | 60°F | 36% | 23% | 14 h 20 min |
| August 5 | 83°F | 60°F | 35% | 23% | 14 h 20 min |
| August 6 | 83°F | 60°F | 35% | 23% | 14 h 20 min |
| August 7 | 82°F | 60°F | 35% | 23% | 14 h 20 min |
| August 8 | 82°F | 60°F | 35% | 23% | 14 h 10 min |
| August 9 | 82°F | 60°F | 35% | 23% | 14 h 10 min |
| August 10 | 82°F | 59°F | 34% | 23% | 14 h 10 min |
| August 11 | 82°F | 59°F | 34% | 22% | 14 h 10 min |
| August 12 | 82°F | 59°F | 34% | 22% | 14 h |
| August 13 | 82°F | 59°F | 34% | 22% | 14 h |
| August 14 | 82°F | 59°F | 33% | 22% | 14 h |
| August 15 | 82°F | 59°F | 33% | 22% | 14 h |
| August 16 | 82°F | 59°F | 33% | 22% | 13 h 50 min |
| August 17 | 82°F | 58°F | 32% | 21% | 13 h 50 min |
| August 18 | 82°F | 58°F | 32% | 21% | 13 h 50 min |
| August 19 | 81°F | 58°F | 32% | 21% | 13 h 50 min |
| August 20 | 81°F | 58°F | 31% | 21% | 13 h 40 min |
| August 21 | 81°F | 58°F | 31% | 20% | 13 h 40 min |
| August 22 | 81°F | 58°F | 31% | 20% | 13 h 40 min |
| August 23 | 81°F | 57°F | 30% | 20% | 13 h 40 min |
| August 24 | 81°F | 57°F | 30% | 20% | 13 h 30 min |
| August 25 | 81°F | 57°F | 29% | 20% | 13 h 30 min |
| August 26 | 80°F | 57°F | 29% | 19% | 13 h 30 min |
| August 27 | 80°F | 57°F | 29% | 19% | 13 h 30 min |
| August 28 | 80°F | 56°F | 29% | 19% | 13 h 20 min |
| August 29 | 80°F | 56°F | 28% | 19% | 13 h 20 min |
| August 30 | 80°F | 56°F | 28% | 19% | 13 h 20 min |
| August 31 | 79°F | 56°F | 28% | 19% | 13 h 20 min |
- Normal high
- 82°FAugust average
- Normal low
- 58°FAugust average
- Precipitation
- 4.12 inmonth total
- Days with precipitation
- 100.01 inch or more
- Days at 90°F or more
- 3
- Daylight
- 14 h 30 min to 13 h 20 minAugust 1 to August 31
- Days at 70°F or more
- 30
- Days at 80°F or more
- 21
- Sunshine
- 77%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00190120; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Amherst in August?
On a given August day the chance of 0.01 inch or more is 32% on average, highest around August 1 (36%). In all, 4.12 in falls on 10 days of a normal August, 1 of them with an inch or more.
In a normal August in Amherst, 3 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00190120.
What are the records for August in Amherst?
The warmest August temperature on this station's record (since 1893) is 100°F, on August 7, 1918; the coldest is 32°F, on August 31, 1965. The wettest August brought 16.10 in (1955).
The August mean against the 1991-2020 normal of 69.9°F: 2021 72.8°F (+2.9), 2022 74.3°F (+4.4), 2023 68.7°F (−1.2), 2024 69.7°F (−0.2), 2025 67.7°F (−2.2), 2026 70.8°F (+0.9). 3 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 72.8°F | +2.9°F | 3.93 in |
| 2022 | 74.3°F | +4.4°F | 2.88 in |
| 2023 | 68.7°F | −1.2°F | 4.21 in |
| 2024 | 69.7°F | −0.2°F | 5.49 in |
| 2025 | 67.7°F | −2.2°F | 2.76 in |
| 2026 | 70.8°F | +0.9°F | 2.90 in |
Source: records: ACIS, station USC00190120; recent months: ACIS, station USC00190120. Records and recent months use complete months only.
How does August in Amherst 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; Amherst's is 82°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.