Concord, NH weather in August
August in Concord: warm, with some rain. Highs 82°F, lows 57°F, rain on about 10 days. This is the peak of the warm season in Concord. A good month for most outdoor plans.
- Normal high
- 82°F
- Normal low
- 57°F
- Wet days
- 10
- 3.6 in total
- Muggy days
- 5
- dew point 65°F+
How August changes from start to finish
| August 1 | August 31 | |
|---|---|---|
| Normal high | 83°F | 79°F |
| Normal low | 59°F | 54°F |
| Chance of a wet day | 35% | 30% |
| Sunrise / sunset | 5:36 am / 8:08 pm | 6:09 am / 7:23 pm |
| Daylight | 14.5 h | 13.2 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical August day
- 6 am60°Fdew point 58°F
- 9 am71°Fdew point 60°F
- Noon78°Fdew point 59°F
- 3 pm79°Fdew point 58°F
- 6 pm75°Fdew point 59°F
- 9 pm66°Fdew point 60°F
NOAA hourly normals (local standard time) from Concord Muni Airport (2 mi away); average wind 5 mph; clear or few clouds in 58% of daytime hours, mostly cloudy or overcast in 31%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F9 of 31
- Hot dayshigh 90°F or more4 of 31
- Muggy daysdaily mean dew point 65°F or more5 of 31
- Wet daysat least 0.01 in of rain or melted snow10 of 31
- Notable rainat least 0.10 in6 of 31
- Freezing nightslow 32°F or below0 of 31
- Snow on the groundsnow depth 1 in or more0 of 31
Average days per August, counted from daily records for each year 1991-2020.
Rain in August
Normal precipitation is 3.6 in; a dry August brings about 2.0 in and a wet one about 4.7 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.
How August varies from year to year
- Warmest August, 1991-20202016: average high 87°F
- Coolest August2008: average high 78°F
- Wettest August2018: 10.7 in
- Driest August1996: 0.06 in
- Highest reading99°F (August 12, 2016)
- Lowest reading39°F (August 22, 2007)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
August compared with July and September
| July | August | September | |
|---|---|---|---|
| Normal high | 83°F | 82°F | 74°F |
| Normal low | 59°F | 57°F | 49°F |
| Wet days | 11 | 10 | 9 |
| Comfortable days | 7 | 9 | 17 |
| Daylight | 15.0 h | 13.9 h | 12.5 h |
Highs change by -1°F from July and -8°F into September.
Nearby alternatives in August
- Cooler: Kennebunkport, ME54 mi · high 76°F · 10 wet days
How Concord ranks in August
- Normal high286th warmest of 378 cities; 2nd of 4 in New Hampshire
- Wet days250th driest of 378
- Comfortable days80th most of 341
What to pack for Concord in August
- Layers – afternoons near 82°F but nights near 57°F
- A rain jacket or umbrella – rain on about 10 days
Heating and cooling
August has 21 heating degree days and 159 cooling degree days (base 65°F), 2% of the year's total heating and cooling demand.
Questions
How hot is Concord in August?
The normal high is 82°F and the normal low is 57°F. From 1991 to 2020 the hottest August reading was 99°F (most recently on August 12, 2016).
Does it rain a lot in Concord in August?
About 10 days in August have at least 0.01 in of precipitation, and the normal total is 3.6 in. The wettest August in 1991-2020 was in 2018 (10.7 in); the driest was in 1996 (0.06 in).
Is August a good time to visit Concord?
August ranks 4th of 12 months on our comfort score for Concord (61 out of 100). It has about 9 comfortable days and about 4 days at 90°F or hotter. The best month is May.
Where the numbers come from
- Temperature, rain, snowfall, snow depth, frost dates, humidity and wind by hour and cloud cover: Concord Muni Airport (USW00014745), 2.0 mi ESE of the city center, 346 ft (72 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Concord Municipal Airport (726050-14745), 1.8 mi E of the city center, 339 ft (65 ft higher than the city). Hourly observations, 1991-2020.