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Monthly climate in Gloucester, Massachusetts, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Gloucester features a humid continental climate (Dfb).Temperatures typically range between 1 °C (33 °F) and 21 °C (70 °F) through the year, but rarely can drop to -17 °C (2 °F) or can rise to as high as 28 °C (83 °F).The average annual precipitation amounts to about 1387 mm (54.6 inches) and receives 123 rainy days on the 1 mm (0.04 inches) threshold annually.Gloucester enjoys an average of 3020 hours of sunshine throughout the year, and daylight varies from 9 hours 5 minutes to 15 hours 14 minutes per day.

Monthly average temperatures in Gloucester, Massachusetts, United States §

The warmest months in Gloucester are July, August and September, with daily mean temperatures ranging from 18 to 21 °C (65 - 70 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 1 to 3 °C (33 - 37 °F) throughout the day. On average each year, Gloucester experiences 5 days above 25 °C (77.0 °F) and 61 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Gloucester, Massachusetts, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 15°C
(59°F)		 12°C
(55°F)		 14°C
(57°F)		 18°C
(65°F)		 22°C
(72°F)		 26°C
(79°F)		 28°C
(83°F)		 28°C
(82°F)		 26°C
(80°F)		 22°C
(72°F)		 19°C
(67°F)		 14°C
(58°F)
Mean maximum 11°C
(53°F)		 11°C
(51°F)		 12°C
(54°F)		 14°C
(58°F)		 21°C
(69°F)		 22°C
(73°F)		 26°C
(79°F)		 26°C
(80°F)		 24°C
(75°F)		 21°C
(70°F)		 17°C
(63°F)		 13°C
(56°F)
Average high 3°C
(38°F)		 4°C
(39°F)		 5°C
(41°F)		 9°C
(48°F)		 13°C
(56°F)		 18°C
(65°F)		 22°C
(72°F)		 22°C
(73°F)		 20°C
(68°F)		 16°C
(61°F)		 10°C
(50°F)		 5°C
(42°F)
Daily mean 1°C
(33°F)		 1°C
(34°F)		 3°C
(37°F)		 7°C
(45°F)		 11°C
(53°F)		 16°C
(62°F)		 20°C
(69°F)		 21°C
(70°F)		 18°C
(65°F)		 14°C
(57°F)		 7°C
(46°F)		 3°C
(38°F)
Average low -2°C
(28°F)		 -2°C
(29°F)		 0°C
(33°F)		 5°C
(42°F)		 10°C
(50°F)		 15°C
(59°F)		 19°C
(67°F)		 20°C
(68°F)		 17°C
(63°F)		 12°C
(54°F)		 5°C
(41°F)		 1°C
(33°F)
Mean minimum -13°C
(9°F)		 -11°C
(12°F)		 -9°C
(16°F)		 1°C
(34°F)		 6°C
(42°F)		 11°C
(51°F)		 17°C
(62°F)		 17°C
(62°F)		 13°C
(56°F)		 6°C
(43°F)		 -4°C
(26°F)		 -8°C
(18°F)
Minimum -17°C
(2°F)		 -14°C
(8°F)		 -11°C
(13°F)		 -1°C
(31°F)		 4°C
(39°F)		 10°C
(50°F)		 15°C
(59°F)		 16°C
(60°F)		 11°C
(53°F)		 3°C
(37°F)		 -9°C
(16°F)		 -16°C
(4°F)

Compare climate in Gloucester with other places

Compare temperature, precipitation, sunshine, UV index in Gloucester, Massachusetts, United States with other places around the world.

Monthly average precipitation in Gloucester, Massachusetts, United States §

Gloucester usually has the most precipitation in April, October and December, with an average of 11 rainy days and 164 mm (6.5 inches) of precipitation per month.The driest months in Gloucester are January, June and August. On average, 82 mm (3.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Gloucester, Massachusetts, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 92 (3.6) 118 (4.6) 111 (4.4) 165 (6.5) 104 (4.1) 90 (3.6) 105 (4.1) 62 (2.5) 97 (3.8) 177 (7.0) 115 (4.5) 150 (5.9)
Average precipitation days (≥ 1 mm) 9 11 11 13 10 9 11 8 8 12 11 10

Monthly sunshine hours in Gloucester, Massachusetts, United States §

The sunniest months in Gloucester are June, July and August, when the sun shines an average of 10 hours 52 minutes a day.Least sunny months in Gloucester: January, February and December receive an average of 5 hours 40 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Gloucester, Massachusetts, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 151 188 254 243 295 330 339 330 280 227 201 176
Mean daily daylight hours 9h 26m 10h 33m 11h 57m 13h 24m 14h 37m 15h 14m 14h 54m 13h 49m 12h 26m 10h 59m 9h 44m 9h 5m

Solar UV radiation in Gloucester, Massachusetts, United States §

Gloucester experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure.January, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Gloucester UV Index data.

Average daily maximum UV levels by month for Gloucester, Massachusetts, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 2 4 5 8 9 10 9 9 7 6 4 2