Quincy (MA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Quincy.
Climate overview of Quincy
Quincy, Massachusetts, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 29°C (84°F) in July, while winters cool to 3°C (37°F) in January.
Rain/snowfall is high, totalling around 1292 mm (51 in) per year. December is the wettest month and September the driest. The city also experiences warm summers and cold winters. The most sunshine falls in May, with an average of 10.0 hours of daily sunshine.
Quincy Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Quincy - and find the best time to visit.
Monthly Temperature in Quincy
Depending on the time of the year, temperatures range from comfortable to chilly in Quincy. Average maximum daytime temperatures range from a comfortable 29°C (84°F) in July, the warmest time of the year, to a chilly 3°C (37°F) during cooler months like January.
At night, you can expect temperatures ranging from 19°C (66°F) in July to around -6°C (21°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Quincy
Quincy has a relatively rain/snowy climate with high precipitation levels, averaging 1292 mm (51 in) of rain/snowfall annually. While snow/rainfall varies throughout the year, each season offers its own charm. December brings wetter days averaging 137 mm (5.4 in) of precipitation, spread over 13 snowy/rainy days.
In contrast, the driest month September experiences a drier climate, with about 78 mm (3.1 in) of rainfall spread across 9 rainy days. For more details, please visit our Quincy Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Quincy
Seasonal changes in sunshine hours are quite dramatic in Quincy. While May receives considerable daily sunshine with up to 10.0 hours, December marks the darkest time of the year, where sunshine is scarce with only 4.7 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Water Temperature in Quincy
The mean water temperature over the year ranges from 4°C (39°F) in February to 20°C (68°F) in August.
Water temperature over the year
Humidity in Quincy by Month
The relative humidity is high throughout the year in Quincy.
The city experiences its highest humidity in August, reaching 72%. In February, the humidity drops to its lowest level at 62%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Quincy
The average wind speed over the year ranges from 5 m/s (10 knots) to 7 m/s (14 knots). It is lower in June, July, August and September and higher in January, February, March and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Quincy
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, July, August and September
- Warmest weather: July and August
- Most sunshine: May and July
- Best for swimming: August, with water temperatures around 20°C (68°F).
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -6°C (21°F).
Frequently asked questions about the climate in Quincy
What is the best time to visit Quincy?
May, July, August and September typically offer the most optimal weather in Quincy. In contrast, January, February, March, November and December tend to have less optimal conditions. Quincy has warm summers and cold winters.
What temperatures can I expect in Quincy?
Daytime highs range from 3°C (37°F) in January to 29°C (84°F) in July. Nighttime lows range from -6°C (21°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Quincy get?
Annual rainfall is around 1292 mm (51 in). December is the wettest month with 137 mm (5.4 in), while September is the driest with 78 mm (3.1 in). In the coldest months, precipitation may fall as snow/rain.
How sunny is Quincy?
Quincy receives around 2,665 hours of sunshine per year. May is the sunniest month with 301 hours, while December is the cloudiest with just 141 hours. Overall, Quincy enjoys abundant sunshine.
Quincy 3-Day Forecast
Quincy (MA) 3-Day Forecast
Quincy on the map
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