Mount Washington weather in August: Mount Washington, New Hampshire: normal highs, lows, rain and records for August
Mount Washington in August has a normal high of 54°F and a normal low of 43°F, a daily mean of 49°F, falling from 55°F on the 1st to 53°F by the 31st. Measurable precipitation falls on 16 days in a normal August, 7.72 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 12°C and low of 6°C, 196 mm of precipitation and 0 cm of snow in August.
- NOAA stationMount Washington
- Station IDUSW00014755
- Location44.27°N 71.30°W
- Elevation6,267 ft (1,910 m)
- Jan 15° -3°
- Feb 15° -3°
- Mar 21° 5°
- Apr 31° 17°
- May 43° 30°
- Jun 51° 40°
- Jul 55° 45°
- Aug 54° 43°
- Sep 49° 37°
- Oct 38° 25°
- Nov 28° 13°
- Dec 20° 4°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Mount Washington in August?
The normal high is 54°F and the normal low 43°F, for a daily mean of 48.7°F. August is 1.2°F cooler than July and 5.6°F warmer than September. August is the 2nd warmest month of the year in Mount Washington and the 5th wettest. Across the month the normal high falls 2°F, from 55°F on August 1 to 53°F on August 31. From one year to the next August's mean temperature typically moves about 1.8°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 47°F and 51°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 54%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 55°F | 45°F | 54% | 39% |
| August 8 | 55°F | 44°F | 52% | 37% |
| August 15 | 54°F | 43°F | 50% | 36% |
| August 22 | 54°F | 43°F | 48% | 35% |
| August 31 | 53°F | 41°F | 47% | 34% |
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 | 55°F | 45°F | 54% | 39% | 14 h 40 min |
| August 2 | 55°F | 45°F | 54% | 39% | 14 h 40 min |
| August 3 | 55°F | 44°F | 53% | 39% | 14 h 40 min |
| August 4 | 55°F | 44°F | 53% | 38% | 14 h 30 min |
| August 5 | 55°F | 44°F | 53% | 38% | 14 h 30 min |
| August 6 | 55°F | 44°F | 53% | 38% | 14 h 30 min |
| August 7 | 55°F | 44°F | 52% | 38% | 14 h 30 min |
| August 8 | 55°F | 44°F | 52% | 37% | 14 h 20 min |
| August 9 | 55°F | 44°F | 52% | 37% | 14 h 20 min |
| August 10 | 55°F | 44°F | 52% | 37% | 14 h 20 min |
| August 11 | 55°F | 44°F | 51% | 37% | 14 h 20 min |
| August 12 | 54°F | 44°F | 51% | 36% | 14 h 10 min |
| August 13 | 54°F | 44°F | 51% | 36% | 14 h 10 min |
| August 14 | 54°F | 44°F | 50% | 36% | 14 h 10 min |
| August 15 | 54°F | 43°F | 50% | 36% | 14 h 10 min |
| August 16 | 54°F | 43°F | 50% | 36% | 14 h |
| August 17 | 54°F | 43°F | 50% | 35% | 14 h |
| August 18 | 54°F | 43°F | 49% | 35% | 14 h |
| August 19 | 54°F | 43°F | 49% | 35% | 13 h 50 min |
| August 20 | 54°F | 43°F | 49% | 35% | 13 h 50 min |
| August 21 | 54°F | 43°F | 49% | 35% | 13 h 50 min |
| August 22 | 54°F | 43°F | 48% | 35% | 13 h 50 min |
| August 23 | 54°F | 43°F | 48% | 35% | 13 h 40 min |
| August 24 | 54°F | 42°F | 48% | 34% | 13 h 40 min |
| August 25 | 54°F | 42°F | 48% | 34% | 13 h 40 min |
| August 26 | 54°F | 42°F | 47% | 34% | 13 h 30 min |
| August 27 | 54°F | 42°F | 47% | 34% | 13 h 30 min |
| August 28 | 54°F | 42°F | 47% | 34% | 13 h 30 min |
| August 29 | 53°F | 42°F | 47% | 34% | 13 h 30 min |
| August 30 | 53°F | 42°F | 47% | 34% | 13 h 20 min |
| August 31 | 53°F | 41°F | 47% | 34% | 13 h 20 min |
- Normal high
- 54°FAugust average
- Normal low
- 43°FAugust average
- Precipitation
- 7.72 inmonth total
- Days with precipitation
- 160.01 inch or more
- Snowfall
- 0.1 inmonth total
- Nights at 32°F or colder
- 2
- Daylight
- 14 h 40 min to 13 h 20 minAugust 1 to August 31
- Sunshine
- 73%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014755; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Mount Washington in August?
On a given August day the chance of 0.01 inch or more is 50% on average, highest around August 1 (54%). In all, 7.72 in falls on 16 days of a normal August, 2 of them with an inch or more.
In a normal August in Mount Washington, 2 nights fall to freezing and snowfall averages 0.1 inches.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014755.
What are the records for August in Mount Washington?
The warmest August temperature on this station's record (since 1948) is 72°F, on August 2, 1975; the coldest is 20°F, on August 30, 1965. The wettest August brought 20.69 in (1991); the snowiest, 2.5 inches (1965).
The August mean against the 1991-2020 normal of 48.7°F: 2021 53.2°F (+4.5), 2022 51.7°F (+3.0), 2023 46.1°F (−2.6), 2024 49.4°F (+0.6). 3 of 4 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 53.2°F | +4.5°F | 5.74 in |
| 2022 | 51.7°F | +3.0°F | 11.45 in |
| 2023 | 46.1°F | −2.6°F | 14.01 in |
| 2024 | 49.4°F | +0.6°F | 7.77 in |
Source: records: ACIS, station USW00014755; recent months: ACIS, station USW00014755. Records and recent months use complete months only.
How does August in Mount Washington compare across New Hampshire?
Across the 28 places PlainClimate covers in New Hampshire, August normal highs run from 76°F in Colebrook to 83°F in Nashua; Mount Washington's is 54°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Mount Washington in July55°F by day, 45°F at night
- Mount Washington in September49°F by day, 37°F at night
- Mount Washington through the yearEvery month, frost dates, records and recent years
- New Hampshire in AugustThe statewide normal and the warmest and coolest places
- Nashua: New Hampshire's warmest Augustnormal high 83°F