Climateby Month

Quincy, MA weather in August

NOAA 1991-2020 normals and daily records · Quincy all year

In August, Quincy sees highs around 82°F and lows around 62°F: warm and often humid, with some rain. Expect about 9 wet days. It is one of the warmest months in Quincy. Good for outdoor plans.

Normal high
82°F
Normal low
62°F
Wet days
9
3.2 in total
Muggy days
9
dew point 65°F+

How August changes from start to finish

Normal values at the start and end of August
August 1August 31
Normal high83°F79°F
Normal low64°F60°F
Chance of a wet day31%28%
Sunrise / sunset5:37 am / 8:03 pm6:08 am / 7:20 pm
Daylight14.4 h13.2 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

  1. 6 am68°Fdew point 61°F
  2. 9 am74°Fdew point 61°F
  3. Noon77°Fdew point 61°F
  4. 3 pm77°Fdew point 61°F
  5. 6 pm75°Fdew point 61°F
  6. 9 pm71°Fdew point 62°F

NOAA hourly normals (local standard time) from Boston Logan Intl Airport (8 mi away); average wind 10 mph; clear or few clouds in 28% of daytime hours, mostly cloudy or overcast in 47%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F8 of 31
  • Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph12 of 31
  • Hot dayshigh 90°F or more4 of 31
  • Muggy daysdaily mean dew point 65°F or more9 of 31
  • Wet daysat least 0.01 in of rain or melted snow9 of 31
  • Notable rainat least 0.10 in5 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 3.2 in; a dry August brings about 1.8 in and a wet one about 4.3 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 86°F
  • Coolest August1992: average high 77°F
  • Wettest August2011: 7.7 in
  • Driest August2007: 0.7 in
  • Highest reading100°F (August 14, 2002)
  • Lowest reading43°F (August 29, 1995)

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

JulyAugustSeptember
Normal high83°F82°F74°F
Normal low63°F62°F55°F
Wet days999
Comfortable days6815
Daylight14.9 h13.8 h12.5 h

Highs change by -1°F from July and -8°F into September.

Nearby alternatives in August

How Quincy ranks in August

  • Normal high289th warmest of 378 cities; 4th of 9 in Massachusetts
  • Wet days194th driest of 378
  • Comfortable days96th most of 341

What to pack for Quincy in August

  • A rain jacket or umbrella – rain on about 9 days
  • A swimsuit – about 12 beach days

Heating and cooling

August has 9 heating degree days and 222 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.

Questions

How hot is Quincy in August?

The normal high is 82°F and the normal low is 62°F. From 1991 to 2020 the hottest August reading was 100°F (August 14, 2002).

Does it rain a lot in Quincy in August?

About 9 days in August have at least 0.01 in of precipitation, and the normal total is 3.2 in. The wettest August in 1991-2020 was in 2011 (7.7 in); the driest was in 2007 (0.7 in).

Is August a good time to visit Quincy?

August ranks 4th of 12 months on our comfort score for Quincy (60 out of 100). It has about 8 comfortable days and about 4 days at 90°F or hotter. The best months are May and June.

Where the numbers come from

  • Temperature, snow depth and frost dates: Hingham (USC00193624), 4.9 mi ESE of the city center, 35 ft . NOAA normals and daily records, 1991-2020.
  • Rain, snowfall, humidity and wind by hour and cloud cover: Boston Logan Intl Airport (USW00014739), 7.5 mi N of the city center, 12 ft . NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Gen E L Logan International Airport (725090-14739), 7.5 mi N of the city center, 11 ft . Hourly observations, 1991-2020.