Worcester Weather in August (1981–2025)

📍 42.27°N, 71.81°W •
📊

August at a Glance in Worcester

(1981–2025)
Avg High
🔥
27.0°C
Avg Low
❄️
15.2°C
Avg Temp
🌡️
21.1°C
Avg Rain
🌧️
98 mm
Avg Humidity
💧
73%
Avg Wind
🌬️
0.1 m/s
Avg Solar
☀️
5.2
kWh/m²/day
vs Annual
📈
+12.7°C
temp difference
🌡️Warm afternoons🌤️Cool mornings☀️Very sunny🌧️Wet month🍃Light winds😊Comfortable humidity

Worcester August Weather Overview

August is one of the warmer months of the year in Worcester, with average highs near 27°C and lows around 15.2°C (mean 21.1°C). It is about average for rainfall, averaging 98 mm of rainfall and 73% relative humidity across the period.

Worcester August Temperature History (1981–2025)

Range

August is one of the warmer months of the year in Worcester. Across 45 years of records, the warmest August in Worcester was 2022 — when the month averaged 24.4°C — while the coldest was 1982 at 18.4°C. Typical August days reach 27°C with nights near 15.2°C. The long-term trend is warming, about 0.5°C per decade.

1981–1985 vs 2021–2025

Avg Temp20.1°C→21.8°C+1.7°C
Max Temp26.3°C→27.5°C+1.2°C
Min Temp14.0°C→16.1°C+2.1°C

Trend (per decade)

Avg Temp+0.5°C/decade ↗
Max Temp+0.4°C/decade ↗
Min Temp+0.5°C/decade ↗

Distribution of Avg Temp

18.0°C–19.8°C8 yr (18%)
19.8°C–21.5°C19 yr (42%)
21.5°C–23.3°C14 yr (31%)
23.3°C–25.0°C4 yr (9%)

Worcester August Rainfall History (1981–2025)

Range

August is about average for rainfall in Worcester, averaging 98 mm of rainfall. The wettest August on record was 2011 with 242 mm, while the driest was 1984 at 34 mm.

Worcester August Humidity History (1981–2025)

Range

Relative humidity in Worcester during August averages 73%. The most humid August was 2009 at 82%, and the least humid was 2002 at 60%.

Worcester August Solar History (1981–2025)

Range

August receives about 5.2 kWh/m²/day of solar energy in Worcester. The sunniest Augusts were 2002 and 2025 at 5.8 kWh/m²/day, and the cloudiest was 2021 at 4.7.

Worcester August Wind History (1981–2025)

Range

Average wind speed in Worcester during August is 0.1 m/s. The windiest Augusts were 2023, 2024 and 2025, among others at 0.1 m/s, while the calmest were 2006 and 2018 at 0 m/s.

What August Feels Like in Worcester

🌅
Cool
Morning
🌞
Warm
Afternoon
🌆
Mild
Evening
Rain chanceHigh
Outdoor comfort★★★★☆

How August Ranks in Worcester

🔥2nd warmest month of the year
🌵3rd driest month of the year
☀️4th sunniest month of the year

Ranked against the other 11 months using 1981–2025 averages.

Explore Worcester Weather by Month

Worcester August Averages by Decade

Metric1980s1990s2000s2010s2020sChange
Avg Temp20.0°C20.8°C21.5°C21.6°C22.0°C+2°C
Avg High25.9°C26.8°C27.2°C27.4°C27.8°C+1.9°C
Avg Low14.1°C14.7°C15.7°C15.8°C16.2°C+2.1°C
Avg Rain91 mm109 mm87 mm110 mm89 mm-1 mm

Extreme August Records in Worcester

🔥Warmest August37.9°C2002
🧊Coldest August4.9°C1982
🌧️Wettest August242 mm2011
🏜️Driest August34 mm1984
🌬️Windiest August0.1 m/s1981

Key Insights for August

✅

August temperatures in Worcester have risen by about 1.7°C between 1981–1985 and 2021–2025.

✅

August has ranged from a record low of 4.9°C (1982) to a record high of 37.9°C (2002).

✅

Rainfall in August is about average for rainfall, averaging 98 mm, with a wettest year of 242 mm.

Is August a Good Time to Visit Worcester?

One of the best times to visit Worcester

August is one of the best times to visit Worcester. Expect days averaging 27°C and nights around 15.2°C (mean 21.1°C) — warmer than Worcester's yearly average — with higher rainfall (98 mm), so conditions are generally comfortable for sightseeing and outdoor plans.

See Worcester's complete weather history All 12 months side by side, 1981–2025 records, annual trends and long-term averages in one place. View full history →

Worcester Weather in August — In Depth

☀️ August climate overview

August is one of the warmer months of the year in Worcester, with average highs near 27°C and lows around 15.2°C (mean 21.1°C). It is about average for rainfall, averaging 98 mm of rainfall and 73% relative humidity across the period.

🌧️ Rain, humidity & wind in August

August averages 98 mm of rainfall in Worcester, about average for rainfall compared with the rest of the year. The wettest August on record saw 242 mm (2011), and the driest just 34 mm (1984). Humidity sits around 73% and average wind speed is 0.1 m/s, with solar radiation averaging 5.2 kWh/m²/day.

📈 How August has changed

Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.7°C. Daytime highs moved from 26.3°C to 27.5°C and overnight lows from 14°C to 16.1°C over the same span.
August Weather in Worcester, Year by Year
🔥 warmest❄️ coldest🌧️ wettest
YearAvg HighAvg TempAvg LowHottest DayColdest DayRainfallHumidityWindSolar
202528.5°C21.6°C14.7°C35.5°C9.9°C38 mm63%0.1 m/s5.8
202426.4°C20.8°C15.3°C32.2°C10.4°C115 mm77%0.1 m/s4.8
202324.8°C19.9°C15.1°C27.6°C10.8°C142 mm82%0.1 m/s4.9
2022 🔥30.7°C24.4°C18.1°C37.3°C13.4°C59 mm65%0.1 m/s5.5
202127.1°C22.2°C17.3°C32.1°C11.4°C120 mm82%0.1 m/s4.7
202029.3°C23.0°C16.7°C35.2°C10.5°C61 mm65%0.1 m/s5.2
201927.5°C21.5°C15.5°C31.4°C9.1°C100 mm72%0.1 m/s5.6
201827.6°C22.6°C17.6°C33.0°C12.6°C156 mm82%0 m/s5
201725.9°C20.3°C14.6°C30.3°C9.7°C72 mm74%0.1 m/s5.4
201629.9°C23.5°C17.2°C35.8°C11.5°C83 mm67%0.1 m/s5.7
201529.1°C22.7°C16.4°C34.3°C12.7°C68 mm69%0.1 m/s5.5
201425.9°C20.0°C14.2°C31.1°C10.5°C86 mm74%0.1 m/s5.4
201325.7°C20.1°C14.5°C29.8°C10.4°C90 mm76%0.1 m/s5.5
201228.4°C22.3°C16.1°C34.3°C11.4°C116 mm71%0.1 m/s5.6
2011 🌧️26.2°C20.9°C15.7°C31.4°C11.8°C242 mm79%0.1 m/s5
201028.1°C22.1°C16.0°C34.6°C11.1°C89 mm69%0.1 m/s5.1
200926.1°C21.2°C16.2°C30.4°C11.0°C92 mm82%0.1 m/s5.3
200824.7°C19.2°C13.8°C27.6°C9.1°C102 mm80%0.1 m/s5.3
200728.5°C21.8°C15.1°C34.9°C8.7°C37 mm67%0.1 m/s5.4
200625.1°C19.9°C14.7°C32.6°C9.1°C109 mm79%0 m/s5.2
200529.0°C23.1°C17.1°C33.8°C12.5°C80 mm72%0.1 m/s5.2
200426.3°C20.8°C15.3°C32.4°C9.0°C124 mm78%0.1 m/s5.1
200327.5°C22.2°C17.0°C31.6°C9.8°C128 mm78%0.1 m/s4.8
200230.4°C23.5°C16.5°C37.9°C8.9°C62 mm60%0.1 m/s5.8
200129.7°C23.3°C16.8°C36.9°C11.8°C66 mm67%0.1 m/s5.2
200025.0°C19.5°C14.1°C30.4°C9.6°C74 mm80%0.1 m/s4.9
199927.6°C21.3°C15.0°C34.0°C10.1°C65 mm65%0.1 m/s5
199827.4°C21.4°C15.4°C32.0°C9.2°C58 mm73%0.1 m/s5.2
199726.0°C20.1°C14.2°C32.7°C11.2°C110 mm73%0.1 m/s5.1
199626.8°C20.8°C14.8°C30.4°C11.1°C39 mm75%0.1 m/s5.3
199528.8°C21.6°C14.5°C35.3°C9.5°C61 mm63%0.1 m/s5.5
199425.8°C19.9°C13.9°C31.4°C8.7°C142 mm75%0.1 m/s5.1
199328.8°C22.0°C15.2°C35.4°C9.9°C64 mm68%0.1 m/s5.5
199224.9°C19.2°C13.5°C30.7°C8.7°C123 mm77%0.1 m/s5.1
199126.6°C20.9°C15.2°C31.3°C10.8°C224 mm76%0.1 m/s5.2
199025.6°C20.5°C15.3°C32.4°C9.0°C209 mm80%0.1 m/s5
198924.4°C19.3°C14.2°C29.2°C6.8°C154 mm80%0.1 m/s5.1
198827.7°C21.7°C15.7°C34.4°C6.6°C89 mm73%0.1 m/s5.2
198726.0°C19.6°C13.2°C34.7°C7.3°C91 mm69%0.1 m/s5.3
198624.1°C18.7°C13.3°C27.6°C4.9°C98 mm77%0.1 m/s4.9
198525.8°C19.7°C13.6°C32.1°C9.2°C126 mm73%0.1 m/s5
198426.5°C20.9°C15.2°C31.0°C8.6°C34 mm79%0.1 m/s5.7
198327.4°C21.1°C14.8°C32.3°C9.3°C108 mm72%0.1 m/s—
1982 ❄️24.2°C18.4°C12.7°C28.0°C4.9°C71 mm75%0.1 m/s—
198127.4°C20.6°C13.8°C32.1°C7.9°C47 mm66%0.1 m/s—

Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.

Other Cities in Massachusetts

Worcester August Weather — FAQ

What is the average temperature in Worcester in August?▼

The average high in August is around 27°C with lows near 15.2°C (mean 21.1°C), based on 45 years of NASA POWER data.

Does it rain a lot in Worcester in August?▼

August averages 98 mm of rainfall in Worcester, about average for rainfall. The wettest on record was 242 mm in 2011.

What was the hottest August on record in Worcester?▼

The hottest August reached 37.9°C in 2002. The coldest dipped to 4.9°C in 1982.

Has August in Worcester gotten warmer over time?▼

Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.7°C. Daytime highs moved from 26.3°C to 27.5°C and overnight lows from 14°C to 16.1°C over the same span.

Is August a good time to visit Worcester?▼

August is one of the warmer months of the year in Worcester and about average for rainfall, so plan for around 27°C daytime highs and 15.2°C at night.

Is August the coldest month in Worcester?▼

Not quite — August is the 11th coolest month in Worcester, averaging 21.1°C.

What should I pack for Worcester in August?▼

For August in Worcester, pack light layers you can adjust through the day, with typical highs of 27°C and lows of 15.2°C. Bring an umbrella or light rain jacket too.

Is Worcester humid in August?▼

Relative humidity in August averages 73% — moderately humid.

How windy is Worcester in August?▼

Average wind speed in August is 0.1 m/s. The windiest August on record averaged 0.1 m/s (1981).

Which August had the most rainfall in Worcester?▼

The wettest August on record was 2011 with 242 mm. On average, August sees 98 mm.

Where does this August weather data come from?▼

All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.

Other Massachusetts cities

Explore how the weather in Worcester behaves each August, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for August specifically, along with year-by-year records and how the month has changed over the decades.