Climateby Month

Worcester, MA weather in August

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

Worcester is mild in August, with frequent rain: highs average 78°F and nights drop to about 61°F. Expect about 10 wet days. This is the peak of the warm season in Worcester. A good month for most outdoor plans.

Normal high
78°F
Normal low
61°F
Wet days
10
4.1 in total
Muggy days
7
dew point 65°F+

How August changes from start to finish

Normal values at the start and end of August
August 1August 31
Normal high80°F76°F
Normal low62°F58°F
Chance of a wet day36%30%
Sunrise / sunset5:40 am / 8:06 pm6:11 am / 7:23 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 (41 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°F13 of 31
  • Hot dayshigh 90°F or more1 of 31
  • Muggy daysdaily mean dew point 65°F or more7 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 4.1 in; a dry August brings about 2.5 in and a wet one about 5.0 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more.

How August varies from year to year

  • Warmest August, 1991-20202020: average high 81°F
  • Coolest August1992: average high 74°F
  • Wettest August2011: 12.2 in
  • Driest August2007: 1.0 in
  • Highest reading93°F (August 2, 2006)
  • Lowest reading48°F (August 30, 1994)

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 high80°F78°F71°F
Normal low62°F61°F53°F
Wet days111010
Comfortable days91316
Daylight14.9 h13.8 h12.5 h

Highs change by -2°F from July and -7°F into September.

Nearby alternatives in August

How Worcester ranks in August

  • Normal high327th warmest of 378 cities; 8th of 9 in Massachusetts
  • Wet days277th driest of 378
  • Comfortable days39th most of 341

What to pack for Worcester in August

  • A rain jacket or umbrella – rain on about 10 days

Heating and cooling

August has 20 heating degree days and 153 cooling degree days (base 65°F), 2% of the year's total heating and cooling demand.

Questions

How hot is Worcester in August?

The normal high is 78°F and the normal low is 61°F. From 1991 to 2020 the hottest August reading was 93°F (most recently on August 2, 2006).

Does it rain a lot in Worcester in August?

About 10 days in August have at least 0.01 in of precipitation, and the normal total is 4.1 in. The wettest August in 1991-2020 was in 2011 (12.2 in); the driest was in 2007 (1.0 in).

Is August a good time to visit Worcester?

August ranks 4th of 12 months on our comfort score for Worcester (68 out of 100). It has about 13 comfortable days and about 1 day at 90°F or hotter. The best months are May, June and September.

Where the numbers come from

  • Temperature, rain, snowfall and frost dates: Worcester Rgnl Airport (USW00094746), 3.7 mi W of the city center, 1,000 ft (516 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Snow depth: Northbridge 2 (USC00195524), 12 mi SSE of the city center, 315 ft (169 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour and cloud cover: Boston Logan Intl Airport (USW00014739), 41 mi E of the city center, 12 ft (472 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Orange Municipal Airport (725085-54756), 33 mi NW of the city center, 544 ft (60 ft higher than the city). Hourly observations, 1991-2020.