Climate and monthly weather forecastQuincy, MA

Climate and monthly weather forecast
The climate of Quincy
Reflecting its location in northeastern United States, Quincy, Massachusetts, is subject to a predominant Dfa Köppen climate type, indicating a humid continental climate with hot summers and no dry season. Geographically nestled along the shoreline of Massachusetts Bay, it experiences weather influences from both the Atlantic Ocean and the inland areas of the American Northeast.The humid continental climate of Quincy manifests with temperate summers and cold, often snowy, winters. Within a year, average high temperature swings from 34°F (1.1°C) in January to 81.3°F (27.4°C) in July, delivering a brisk contrast between summer heat and winter chill. The low-temperature averages tell a similar tale, indicating chilly dips from 22.6°F (-5.2°C) in January to a balmy 64.8°F (18.2°C) in the summer month of July.
Quincy displays relatively high levels of humidity throughout the year, fluctuating slightly between 70% in April to 78% in February, supporting a sense of an atmosphere leaning to dampness. Meanwhile, rainfall does not show drastic differences throughout the year, with the amount of rain spanning moderately from 0.31" (8mm) in September to 0.79" (20mm) in April. Snowfall is experienced predominantly from November through to March, with January witnessing the highest snowfall of 0.83" (21mm). Snowfall days peak in January, at 4.6 days of snow, while noticeable sunshine hours range from 4.7 hours in December to 10.5 in August.
The best time to visit Quincy
When planning a visit to Quincy, the summer months offer the most pleasant conditions. June through August welcome average high temperatures from 73.9°F (23.3°C) up to 81.3°F (27.4°C) and low temperatures remaining comfortably above 57.2°F (14°C). These months also provide the longest daylight hours, reaching up to 15.2 hours in June, affording abundant time for daylight activities. Furthermore, the summer months see significant sunshine hours per day, peaking at 10.5 hours in August, offering generous sunny weather for outdoor exploration.The worst time to visit Quincy
The winter months pose a less inviting time to visit Quincy due to often harsh conditions. More specifically, from December to February provide the coldest conditions with average high temperatures ranging from 34°F (1.1°C) to 37.2°F (2.9°C) and low temperatures slipping as low as 22.6°F (-5.2°C). Accompanying the frigid temperatures, Quincy encounters snowfall during these months, reaching 0.55" (14mm) in December. The combination of cold temperatures and potential snowfall tend to limit outdoor activities during this season.Spring weather in Quincy
Quincy’s spring season, spanning from March to May, transitions from the harsh winter cold to the warmth of summer. It witnesses temperatures gradually rising, with highs moving from 43.3°F (6.3°C) in March to 66.4°F (19.1°C) in May and lows climbing from 30.9°F (-0.6°C) to 50°F (10°C) across these months. Spring also brings a noticeable increase in rainfall, peaking at 0.79" (20mm) in April. However, despite occasional rain, daylight lengthens from 12 hours up to 14.6 hours, offering more time for outdoor activities.Summer weather in Quincy
Summer in Quincy, running from June to August, provides the most pleasant conditions of the year. Boasting high temperatures from 73.9°F (23.3°C) to 81.3°F (27.4°C) and lows consistently above 57.2°F (14°C), the weather is warm and inviting. These months offer the longest daylight hours, reaching 15.2 hours in June, and highest levels of sunshine per day, peaking at 10.5 hours in August. This combination enables ample time for engaging with the outdoors.Autumn weather in Quincy
Autumn in Quincy, from September to November, signifies the return of lower temperatures and shorter days. It experiences average high temperatures dropping from 72.7°F (22.6°C) to 49.5°F (9.7°C) and lows descending between 57.2°F (14°C) and 37.9°F (3.3°C). Meanwhile, daylight hours diminish from 12.5 hours in September to 9.8 hours in November as winter approaches. In spite of this, autumn sees relatively lower rainfall, dropping to 0.31" (8mm) in September.Winter weather in Quincy
Winter in Quincy, encompassing December to February, is characterized by the coldest conditions of the year. The season sees average high temperatures falling between 34°F (1.1°C) and 37.2°F (2.9°C) and lows dipping as far as 22.6°F (-5.2°C). Coupled with the frigid temperatures, Quincy experiences considerable snowfall in winter months, reaching 0.55" (14mm) in December. Daylight hours also decrease in winter, restricting to just over 9 hours in December, reducing the time available for outdoor activities.Weather in January
January in Quincy, Massachusetts is characterized by its frosty weather with the mercury dropping to as low as 22.6°F (-5.2°C). Thick woolens are necessary as brisk cold winds whiz through the city at speeds of about 9.7mph (15.6km/h). Weather in January »Weather in February
Weather variability is a hallmark of February in Quincy. February sees a marginal rise in temperature from January, yet the weather remains within the winter domain. Winds continue their streak, but the snow showers become less frequent making the roads and walkways easier to navigate. Weather in February »Weather in March
March in Quincy marks the onset of the spring season, offering a welcome respite from the extended chill. Meanwhile, at top speeds of 10mph (16.1km/h), the winds persist but lose their winter sting. Rainfall increases, making umbrellas and raincoats quintessential for outdoor excursions. Weather in March »Weather in April
With temperatures climbing to around 55.4°F (13°C), April truly heralds the arrival of spring in Quincy. The city experiences a notable increase in daylight hours and a decrease in cloud cover. Rainfall continues its surge, but the city remains easily navigated and welcoming for visitors. Weather in April »Weather in May
As Quincy steps into May, it experiences the warmth and vigor of extended daylight hours reaching up to 14.6 hours. The city basks in a pleasant weather range with temperatures frequently hitting 66.4°F (19.1°C). Rainfall is predictable, allowing for planned outdoor activities. Weather in May »Weather in June
June in Quincy is the prelude to the hot summer months. Resplendent in its summer colors, Quincy gets sunlit for approximately 15.2 hours per day. The showers dwindle, and the city buzzes with outdoor activities and treasures the clear, starlit nights. Weather in June »Weather in July
July is the peak of summer in Quincy, Massachusetts, with high temperatures soaring to 81.3°F (27.4°C). The city’s blue skies are clear with the percentage cloud cover at its annual minima. Days are long and vibrant, punctuated by intermittent showers. Weather in July »Weather in August
August maintains July’s weather legacy, with towering temperatures and long sunlit days. The wind speed drops to its yearly low, providing respite from its gusts and creating an amicable weather for beach and water activities. Weather in August »Weather in September
As Quincy transitions into autumn in September, it greets visitors with comfortably warm temperatures. The long, hot summer days begin to shorten, paving the way for pleasant autumn evenings. Rainfall is infrequent with clearer skies, offering unobstructed views of the city's autumn foliage. Weather in September »Weather in October
October brings a discernible chill in the air as Quincy gears up for the winter months. However, the wind speed increases during this month to around 8.1mph (13km/h), causing the fallen leaves to whirl in the autumn wind. With rains entertaining their annual highs, the weather cycles between sunny, dry days and cloudy, wet ones. Weather in October »Weather in November
November firmly esconses Quincy in the winter slot, with temperatures often dipping to a chilly 37.9°F (3.3°C). Yet, the sunshine hours are substantial, often trickling into the colder days. The wind continues its frolic, stirring up a cold wave in the city. Weather in November »Weather in December
December marks the onset of the holiday season in Quincy, with temperatures often dropping to a cool 29.8°F (-1.2°C). The city gears up for winter festivities against the backdrop of intermittent snowfall. The days shorten, and the cloud cover increases, shrouding the city in a winter blanket. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Quincy, MA
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (34°F).
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure
Quincy, MA
- Average pressure in January:
30"Hg - Average pressure in February:
29.99"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.03"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Quincy, MA
- Average wind speed in January:
9.7mph - Average wind speed in February:
9.6mph - Average wind speed in March:
9.4mph - Average wind speed in April:
8.7mph - Average wind speed in May:
7.5mph - Average wind speed in June:
6.9mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
6.2mph - Average wind speed in September:
6.8mph - Average wind speed in October:
8.1mph - Average wind speed in November:
8.7mph - Average wind speed in December:
9.2mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity
Quincy, MA
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (70%).
Average rainfall
Quincy, MA
- Average rainfall in January:
0.51" - Average rainfall in February:
0.43" - Average rainfall in March:
0.55" - Average rainfall in April:
0.79" - Average rainfall in May:
0.51" - Average rainfall in June:
0.51"
- Average rainfall in July:
0.59" - Average rainfall in August:
0.47" - Average rainfall in September:
0.31" - Average rainfall in October:
0.59" - Average rainfall in November:
0.71" - Average rainfall in December:
0.63"
The wettest month (with the highest rainfall) is April (0.79").
The driest month (with the least rainfall) is September (0.31").
Average rainfall days
Quincy, MA
- Average rainfall days in January:
5.8 days - Average rainfall days in February:
4.3 days - Average rainfall days in March:
7.8 days - Average rainfall days in April:
9.3 days - Average rainfall days in May:
9.3 days - Average rainfall days in June:
8.3 days
- Average rainfall days in July:
10.3 days - Average rainfall days in August:
8.2 days - Average rainfall days in September:
6.9 days - Average rainfall days in October:
6.9 days - Average rainfall days in November:
6.4 days - Average rainfall days in December:
6 days
The month with the highest number of rainy days is July (10.3 days).
The month with the least rainy days is February (4.3 days).
Average snowfall
Quincy, MA
- Average snowfall in January:
0.47" - Average snowfall in February:
0.71" - Average snowfall in March:
0.83" - Average snowfall in April:
0.08" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
The month with the highest snowfall is March (0.83").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Quincy, MA
- Average snowfall days in January:
4.6 days - Average snowfall days in February:
4.5 days - Average snowfall days in March:
4.3 days - Average snowfall days in April:
0.6 days - Average snowfall days in May:
0.1 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.8 days - Average snowfall days in December:
3.2 days
The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
Quincy, MA
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
5h and 6min - Average sunshine in February:
4h and 36min - Average sunshine in March:
5h and 36min - Average sunshine in April:
7h and 54min - Average sunshine in May:
8h and 18min - Average sunshine in June:
9h and 6min
- Average sunshine in July:
10h and 6min - Average sunshine in August:
10h and 30min - Average sunshine in September:
8h and 18min - Average sunshine in October:
6h and 6min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
Quincy, MA
- Average sunshine days in January:
21.4 days - Average sunshine days in February:
19.8 days - Average sunshine days in March:
19.3 days - Average sunshine days in April:
17.8 days - Average sunshine days in May:
19.2 days - Average sunshine days in June:
18.6 days
- Average sunshine days in July:
18.4 days - Average sunshine days in August:
20.2 days - Average sunshine days in September:
21.2 days - Average sunshine days in October:
21.6 days - Average sunshine days in November:
22.1 days - Average sunshine days in December:
21.5 days
The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is April (17.8 days).
Average UV index
Quincy, MA
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Quincy, MA
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility
Quincy, MA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





