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Monthly climate in West Wareham, Massachusetts, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification West Wareham features a humid subtropical climate (Cfa).Temperatures typically range between 1 °C (34 °F) and 23 °C (74 °F) through the year, but rarely can drop to -19 °C (-1 °F) or can rise to as high as 37 °C (98 °F).The average annual precipitation amounts to about 1233 mm (48.5 inches) and receives 126 rainy days on the 1 mm (0.04 inches) threshold annually.West Wareham enjoys an average of 3034 hours of sunshine throughout the year, and daylight varies from 9 hours 10 minutes to 15 hours 9 minutes per day.

Monthly average temperatures in West Wareham, Massachusetts, United States §

The warmest months in West Wareham are June, July and August, with daily mean temperatures ranging from 19 to 23 °C (67 - 74 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 1 to 3 °C (34 - 38 °F) throughout the day. On average each year, West Wareham experiences 48 days above 25 °C (77.0 °F) and 70 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in West Wareham, 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 19°C
(66°F)		 17°C
(64°F)		 18°C
(65°F)		 24°C
(76°F)		 30°C
(87°F)		 32°C
(90°F)		 37°C
(98°F)		 34°C
(94°F)		 30°C
(87°F)		 26°C
(79°F)		 21°C
(71°F)		 17°C
(63°F)
Mean maximum 14°C
(57°F)		 14°C
(58°F)		 15°C
(60°F)		 19°C
(67°F)		 27°C
(81°F)		 29°C
(84°F)		 33°C
(91°F)		 31°C
(89°F)		 28°C
(82°F)		 24°C
(76°F)		 20°C
(68°F)		 16°C
(60°F)
Average high 4°C
(40°F)		 5°C
(42°F)		 7°C
(46°F)		 12°C
(54°F)		 17°C
(64°F)		 23°C
(74°F)		 26°C
(80°F)		 26°C
(80°F)		 23°C
(73°F)		 18°C
(64°F)		 11°C
(53°F)		 6°C
(43°F)
Daily mean 1°C
(34°F)		 2°C
(36°F)		 4°C
(39°F)		 9°C
(48°F)		 14°C
(57°F)		 19°C
(67°F)		 23°C
(74°F)		 23°C
(74°F)		 19°C
(67°F)		 14°C
(58°F)		 8°C
(46°F)		 3°C
(38°F)
Average low -2°C
(28°F)		 -2°C
(29°F)		 1°C
(33°F)		 6°C
(43°F)		 11°C
(52°F)		 16°C
(61°F)		 20°C
(68°F)		 20°C
(68°F)		 16°C
(61°F)		 11°C
(52°F)		 4°C
(39°F)		 -0°C
(32°F)
Mean minimum -14°C
(8°F)		 -12°C
(10°F)		 -8°C
(18°F)		 0°C
(33°F)		 5°C
(42°F)		 11°C
(52°F)		 16°C
(60°F)		 15°C
(59°F)		 11°C
(51°F)		 4°C
(39°F)		 -5°C
(23°F)		 -8°C
(18°F)
Minimum -19°C
(-1°F)		 -15°C
(5°F)		 -12°C
(11°F)		 -2°C
(29°F)		 3°C
(38°F)		 9°C
(48°F)		 14°C
(57°F)		 13°C
(55°F)		 9°C
(48°F)		 0°C
(33°F)		 -9°C
(17°F)		 -14°C
(6°F)

Compare climate in West Wareham with other places

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

Monthly average precipitation in West Wareham, Massachusetts, United States §

West Wareham usually has the most precipitation in April, October and December, with an average of 11 rainy days and 127 mm (5.0 inches) of precipitation per month.The driest months in West Wareham are January, June and August. On average, 84 mm (3.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in West Wareham, 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) 82 (3.2) 97 (3.8) 107 (4.2) 122 (4.8) 98 (3.9) 90 (3.5) 102 (4.0) 81 (3.2) 102 (4.0) 143 (5.6) 93 (3.7) 116 (4.6)
Average precipitation days (≥ 1 mm) 8 11 10 13 12 10 10 11 10 11 10 10

Monthly sunshine hours in West Wareham, Massachusetts, United States §

The sunniest months in West Wareham are June, July and August, when the sun shines an average of 10 hours 54 minutes a day.Least sunny months in West Wareham: January, February and December receive an average of 5 hours 34 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in West Wareham, 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 148 186 259 246 297 327 347 329 280 234 205 172
Mean daily daylight hours 9h 31m 10h 36m 11h 58m 13h 22m 14h 33m 15h 9m 14h 49m 13h 46m 12h 25m 11h 1m 9h 48m 9h 10m

Solar UV radiation in West Wareham, Massachusetts, United States §

West Wareham 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, November 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 West Wareham UV Index data.

Average daily maximum UV levels by month for West Wareham, 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) 3 5 6 8 9 10 9 9 8 6 4 2