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Monthly climate in Somerset, New Jersey, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Somerset features a humid subtropical climate (Cfa).Temperatures typically range between 1 °C (34 °F) and 25 °C (78 °F) through the year, but rarely can drop to -17 °C (2 °F) or can rise to as high as 37 °C (98 °F).The average annual precipitation amounts to about 1305 mm (51.4 inches) and receives 131 rainy days on the 1 mm (0.04 inches) threshold annually.Somerset enjoys an average of 3024 hours of sunshine throughout the year, and daylight varies from 9 hours 18 minutes to 15 hours 1 minutes per day.

Monthly average temperatures in Somerset, New Jersey, United States §

The warmest months in Somerset are June, July and August, with daily mean temperatures ranging from 22 to 25 °C (72 - 78 °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, Somerset experiences 92 days above 25 °C (77.0 °F) and 72 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Somerset, New Jersey, 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
(67°F)		 25°C
(78°F)		 27°C
(82°F)		 30°C
(87°F)		 34°C
(94°F)		 36°C
(98°F)		 37°C
(98°F)		 35°C
(96°F)		 35°C
(96°F)		 35°C
(95°F)		 24°C
(76°F)		 19°C
(66°F)
Mean maximum 16°C
(61°F)		 19°C
(67°F)		 23°C
(73°F)		 27°C
(81°F)		 32°C
(90°F)		 34°C
(94°F)		 36°C
(97°F)		 34°C
(94°F)		 33°C
(91°F)		 29°C
(84°F)		 23°C
(73°F)		 17°C
(62°F)
Average high 5°C
(41°F)		 7°C
(45°F)		 11°C
(51°F)		 16°C
(62°F)		 22°C
(72°F)		 27°C
(81°F)		 30°C
(87°F)		 29°C
(84°F)		 26°C
(78°F)		 20°C
(68°F)		 12°C
(54°F)		 7°C
(45°F)
Daily mean 1°C
(34°F)		 3°C
(37°F)		 6°C
(43°F)		 11°C
(53°F)		 17°C
(63°F)		 22°C
(72°F)		 25°C
(78°F)		 24°C
(76°F)		 21°C
(70°F)		 16°C
(60°F)		 8°C
(46°F)		 3°C
(38°F)
Average low -2°C
(28°F)		 -1°C
(30°F)		 2°C
(35°F)		 7°C
(45°F)		 12°C
(54°F)		 17°C
(63°F)		 21°C
(70°F)		 20°C
(69°F)		 17°C
(62°F)		 11°C
(53°F)		 3°C
(37°F)		 -0°C
(32°F)
Mean minimum -12°C
(10°F)		 -12°C
(11°F)		 -7°C
(20°F)		 0°C
(33°F)		 5°C
(42°F)		 12°C
(54°F)		 16°C
(61°F)		 15°C
(59°F)		 10°C
(50°F)		 3°C
(38°F)		 -6°C
(22°F)		 -9°C
(16°F)
Minimum -17°C
(2°F)		 -16°C
(3°F)		 -13°C
(9°F)		 -2°C
(29°F)		 1°C
(35°F)		 9°C
(49°F)		 14°C
(57°F)		 14°C
(57°F)		 6°C
(44°F)		 1°C
(34°F)		 -10°C
(14°F)		 -13°C
(10°F)

Compare climate in Somerset with other places

Compare temperature, precipitation, sunshine, UV index in Somerset, New Jersey, United States with other places around the world.

Monthly average precipitation in Somerset, New Jersey, United States §

Somerset usually has the most precipitation in July, August and October, with an average of 12 rainy days and 136 mm (5.4 inches) of precipitation per month.The driest months in Somerset are January, September and November. On average, 79 mm (3.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Somerset, New Jersey, 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) 65 (2.6) 107 (4.2) 107 (4.2) 110 (4.3) 129 (5.1) 102 (4.0) 140 (5.5) 133 (5.2) 89 (3.5) 136 (5.4) 82 (3.2) 106 (4.2)
Average precipitation days (≥ 1 mm) 8 10 10 12 13 13 14 13 9 10 9 10

Monthly sunshine hours in Somerset, New Jersey, United States §

The sunniest months in Somerset are June, July and August, when the sun shines an average of 10 hours 47 minutes a day.Least sunny months in Somerset: January, February and December receive an average of 5 hours 39 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Somerset, New Jersey, 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 152 180 254 250 283 321 352 319 279 231 218 181
Mean daily daylight hours 9h 37m 10h 39m 11h 58m 13h 19m 14h 27m 15h 1m 14h 42m 13h 41m 12h 24m 11h 4m 9h 54m 9h 18m

Solar UV radiation in Somerset, New Jersey, United States §

Somerset experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 10 - 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 Somerset UV Index data.

Average daily maximum UV levels by month for Somerset, New Jersey, 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 10 10 10 9 8 6 4 2