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Monthly climate in Rowley, Massachusetts, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Rowley features a humid continental climate (Dfb).Temperatures typically range between -1 °C (30 °F) and 23 °C (73 °F) through the year, but rarely can drop to -21 °C (-5 °F) or can rise to as high as 34 °C (94 °F).The average annual precipitation amounts to about 1170 mm (46.1 inches) and receives 124 rainy days on the 1 mm (0.04 inches) threshold annually.Rowley enjoys an average of 2995 hours of sunshine throughout the year, and daylight varies from 9 hours 4 minutes to 15 hours 15 minutes per day.

Monthly average temperatures in Rowley, Massachusetts, United States §

The warmest months in Rowley are June, July and August, with daily mean temperatures ranging from 20 to 23 °C (68 - 73 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 1 °C (30 - 34 °F) throughout the day. On average each year, Rowley experiences 55 days above 25 °C (77.0 °F) and 93 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Rowley, 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)		 20°C
(68°F)		 20°C
(68°F)		 28°C
(82°F)		 31°C
(89°F)		 33°C
(92°F)		 34°C
(94°F)		 34°C
(93°F)		 32°C
(90°F)		 28°C
(82°F)		 22°C
(72°F)		 16°C
(61°F)
Mean maximum 13°C
(55°F)		 15°C
(60°F)		 17°C
(63°F)		 21°C
(69°F)		 29°C
(84°F)		 30°C
(87°F)		 33°C
(91°F)		 32°C
(90°F)		 30°C
(85°F)		 25°C
(77°F)		 20°C
(69°F)		 15°C
(59°F)
Average high 2°C
(36°F)		 4°C
(39°F)		 7°C
(44°F)		 12°C
(54°F)		 18°C
(65°F)		 24°C
(75°F)		 27°C
(80°F)		 26°C
(80°F)		 23°C
(73°F)		 17°C
(63°F)		 10°C
(50°F)		 4°C
(40°F)
Daily mean -1°C
(30°F)		 -0°C
(32°F)		 3°C
(37°F)		 8°C
(47°F)		 14°C
(58°F)		 20°C
(68°F)		 23°C
(73°F)		 23°C
(73°F)		 19°C
(66°F)		 13°C
(56°F)		 6°C
(43°F)		 1°C
(34°F)
Average low -5°C
(23°F)		 -4°C
(25°F)		 -1°C
(30°F)		 5°C
(41°F)		 10°C
(51°F)		 16°C
(60°F)		 19°C
(67°F)		 19°C
(67°F)		 15°C
(59°F)		 10°C
(50°F)		 2°C
(36°F)		 -3°C
(27°F)
Mean minimum -16°C
(3°F)		 -15°C
(5°F)		 -12°C
(11°F)		 -1°C
(30°F)		 5°C
(40°F)		 10°C
(50°F)		 15°C
(59°F)		 14°C
(57°F)		 9°C
(48°F)		 2°C
(36°F)		 -7°C
(20°F)		 -12°C
(11°F)
Minimum -21°C
(-5°F)		 -17°C
(2°F)		 -15°C
(5°F)		 -3°C
(27°F)		 2°C
(37°F)		 7°C
(45°F)		 14°C
(57°F)		 12°C
(54°F)		 6°C
(43°F)		 -0°C
(31°F)		 -11°C
(12°F)		 -20°C
(-3°F)

Compare climate in Rowley with other places

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

Monthly average precipitation in Rowley, Massachusetts, United States §

Rowley usually has the most precipitation in April, July and October, with an average of 12 rainy days and 130 mm (5.1 inches) of precipitation per month.The driest months in Rowley are January, August and September. On average, 72 mm (2.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Rowley, 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) 71 (2.8) 89 (3.5) 87 (3.4) 131 (5.2) 83 (3.3) 88 (3.5) 127 (5.0) 70 (2.8) 74 (2.9) 131 (5.1) 98 (3.9) 121 (4.8)
Average precipitation days (≥ 1 mm) 8 11 9 13 11 11 12 10 8 11 10 10

Monthly sunshine hours in Rowley, Massachusetts, United States §

The sunniest months in Rowley are June, July and August, when the sun shines an average of 10 hours 48 minutes a day.Least sunny months in Rowley: 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 Rowley, 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 153 186 254 240 291 327 334 332 280 220 197 176
Mean daily daylight hours 9h 25m 10h 32m 11h 57m 13h 25m 14h 39m 15h 15m 14h 55m 13h 49m 12h 26m 10h 59m 9h 43m 9h 4m

Solar UV radiation in Rowley, Massachusetts, United States §

Rowley 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 3. For more detailed information, check out our hourly Rowley UV Index data.

Average daily maximum UV levels by month for Rowley, 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 5 5 8 9 10 9 9 7 6 3 2