Keene weather in August: Keene, New Hampshire: normal highs, lows, rain and records for August
Keene in August has a normal high of 81°F and a normal low of 54°F, a daily mean of 68°F, falling from 82°F on the 1st to 78°F by the 31st. Measurable precipitation falls on 10 days in a normal August, 4.28 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 27°C and low of 12°C, 109 mm of precipitation in August.
- NOAA stationKeene
- Station IDUSC00274399
- Location42.94°N 72.32°W
- Elevation511 ft (156 m)
- From the center1 miles
- Population23,036
- Jan 30° 10°
- Feb 34° 11°
- Mar 43° 20°
- Apr 57° 30°
- May 69° 41°
- Jun 77° 51°
- Jul 82° 56°
- Aug 81° 54°
- Sep 73° 47°
- Oct 60° 36°
- Nov 47° 27°
- Dec 36° 18°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Keene in August?
The normal high is 81°F and the normal low 54°F, for a daily mean of 67.5°F. August is 1.5°F cooler than July and 7.4°F warmer than September. August is the 2nd warmest month of the year in Keene and the 4th wettest. Across the month the normal high falls 4°F, from 82°F on August 1 to 78°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 66°F and 70°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 | 82°F | 56°F | 36% | 23% |
| August 8 | 82°F | 56°F | 35% | 23% |
| August 15 | 81°F | 55°F | 34% | 22% |
| August 22 | 80°F | 54°F | 32% | 21% |
| August 31 | 78°F | 52°F | 31% | 20% |
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 | 82°F | 56°F | 36% | 23% | 14 h 30 min |
| August 2 | 82°F | 56°F | 36% | 23% | 14 h 30 min |
| August 3 | 82°F | 56°F | 36% | 23% | 14 h 30 min |
| August 4 | 82°F | 56°F | 36% | 23% | 14 h 30 min |
| August 5 | 82°F | 56°F | 36% | 23% | 14 h 20 min |
| August 6 | 82°F | 56°F | 35% | 23% | 14 h 20 min |
| August 7 | 82°F | 56°F | 35% | 23% | 14 h 20 min |
| August 8 | 82°F | 56°F | 35% | 23% | 14 h 20 min |
| August 9 | 81°F | 55°F | 35% | 22% | 14 h 10 min |
| August 10 | 81°F | 55°F | 35% | 22% | 14 h 10 min |
| August 11 | 81°F | 55°F | 35% | 22% | 14 h 10 min |
| August 12 | 81°F | 55°F | 34% | 22% | 14 h 10 min |
| August 13 | 81°F | 55°F | 34% | 22% | 14 h |
| August 14 | 81°F | 55°F | 34% | 22% | 14 h |
| August 15 | 81°F | 55°F | 34% | 22% | 14 h |
| August 16 | 81°F | 55°F | 34% | 22% | 14 h |
| August 17 | 81°F | 55°F | 34% | 22% | 13 h 50 min |
| August 18 | 81°F | 54°F | 33% | 21% | 13 h 50 min |
| August 19 | 80°F | 54°F | 33% | 21% | 13 h 50 min |
| August 20 | 80°F | 54°F | 33% | 21% | 13 h 50 min |
| August 21 | 80°F | 54°F | 33% | 21% | 13 h 40 min |
| August 22 | 80°F | 54°F | 32% | 21% | 13 h 40 min |
| August 23 | 80°F | 54°F | 32% | 21% | 13 h 40 min |
| August 24 | 80°F | 53°F | 32% | 21% | 13 h 40 min |
| August 25 | 79°F | 53°F | 32% | 20% | 13 h 30 min |
| August 26 | 79°F | 53°F | 32% | 20% | 13 h 30 min |
| August 27 | 79°F | 53°F | 31% | 20% | 13 h 30 min |
| August 28 | 79°F | 53°F | 31% | 20% | 13 h 20 min |
| August 29 | 79°F | 52°F | 31% | 20% | 13 h 20 min |
| August 30 | 79°F | 52°F | 31% | 20% | 13 h 20 min |
| August 31 | 78°F | 52°F | 31% | 20% | 13 h 20 min |
- Normal high
- 81°FAugust average
- Normal low
- 54°FAugust average
- Precipitation
- 4.28 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 USC00274399; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Keene in August?
On a given August day the chance of 0.01 inch or more is 34% on average, highest around August 1 (36%). In all, 4.28 in falls on 10 days of a normal August, 1 of them with an inch or more.
In a normal August in Keene, 3 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00274399.
What are the records for August in Keene?
The warmest August temperature on this station's record (since 1893) is 102°F, on August 5, 1955; the coldest is 27°F, on August 26, 1940. The wettest August brought 9.74 in (2011).
The August mean against the 1991-2020 normal of 67.5°F: 2021 70.9°F (+3.4), 2022 71.6°F (+4.1), 2023 66.1°F (−1.4), 2024 68.0°F (+0.5), 2025 66.6°F (−0.9), 2026 68.8°F (+1.3). 4 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 70.9°F | +3.4°F | 4.78 in |
| 2022 | 71.6°F | +4.1°F | 1.83 in |
| 2023 | 66.1°F | −1.4°F | 4.50 in |
| 2024 | 68.0°F | +0.5°F | 5.01 in |
| 2025 | 66.6°F | −0.9°F | 1.85 in |
| 2026 | 68.8°F | +1.3°F | 2.57 in |
Source: records: ACIS, station USC00274399; recent months: ACIS, station USC00274399. Records and recent months use complete months only.
How does August in Keene 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; Keene's is 81°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.