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Monthly climate in Andover, New Jersey, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Andover features a humid subtropical climate (Cfa).Temperatures typically range between -1 °C (31 °F) and 24 °C (76 °F) through the year, but rarely can drop to -21 °C (-6 °F) or can rise to as high as 35 °C (96 °F).The average annual precipitation amounts to about 1306 mm (51.4 inches) and receives 135 rainy days on the 1 mm (0.04 inches) threshold annually.Andover enjoys an average of 2863 hours of sunshine throughout the year, and daylight varies from 9 hours 16 minutes to 15 hours 3 minutes per day.

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

The warmest months in Andover are June, July and August, with daily mean temperatures ranging from 21 to 24 °C (69 - 76 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 2 °C (31 - 35 °F) throughout the day. On average each year, Andover experiences 77 days above 25 °C (77.0 °F) and 91 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Andover, 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 17°C
(63°F)		 24°C
(76°F)		 25°C
(78°F)		 28°C
(83°F)		 32°C
(90°F)		 34°C
(94°F)		 35°C
(96°F)		 34°C
(93°F)		 33°C
(92°F)		 32°C
(90°F)		 24°C
(75°F)		 17°C
(62°F)
Mean maximum 14°C
(57°F)		 18°C
(65°F)		 21°C
(70°F)		 25°C
(78°F)		 30°C
(87°F)		 32°C
(91°F)		 35°C
(94°F)		 33°C
(91°F)		 31°C
(88°F)		 27°C
(81°F)		 22°C
(71°F)		 15°C
(59°F)
Average high 3°C
(38°F)		 5°C
(42°F)		 9°C
(48°F)		 15°C
(59°F)		 21°C
(69°F)		 26°C
(78°F)		 29°C
(84°F)		 28°C
(82°F)		 24°C
(76°F)		 18°C
(65°F)		 10°C
(51°F)		 5°C
(42°F)
Daily mean -1°C
(31°F)		 1°C
(34°F)		 4°C
(39°F)		 10°C
(50°F)		 16°C
(60°F)		 21°C
(69°F)		 24°C
(76°F)		 23°C
(73°F)		 19°C
(67°F)		 14°C
(57°F)		 6°C
(43°F)		 2°C
(35°F)
Average low -4°C
(25°F)		 -3°C
(27°F)		 -1°C
(31°F)		 5°C
(42°F)		 11°C
(52°F)		 16°C
(60°F)		 19°C
(67°F)		 19°C
(66°F)		 15°C
(59°F)		 10°C
(50°F)		 1°C
(34°F)		 -2°C
(29°F)
Mean minimum -14°C
(7°F)		 -15°C
(6°F)		 -10°C
(15°F)		 -2°C
(29°F)		 3°C
(38°F)		 10°C
(51°F)		 14°C
(58°F)		 13°C
(55°F)		 7°C
(46°F)		 2°C
(35°F)		 -7°C
(19°F)		 -11°C
(13°F)
Minimum -18°C
(-0°F)		 -21°C
(-6°F)		 -17°C
(2°F)		 -4°C
(25°F)		 -1°C
(31°F)		 7°C
(45°F)		 12°C
(54°F)		 12°C
(54°F)		 4°C
(40°F)		 -0°C
(32°F)		 -14°C
(7°F)		 -16°C
(4°F)

Compare climate in Andover with other places

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

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

Andover usually has the most precipitation in May, July and October, with an average of 11 rainy days and 136 mm (5.4 inches) of precipitation per month.The driest months in Andover are January, June and November. On average, 84 mm (3.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Andover, 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) 70 (2.8) 100 (3.9) 95 (3.7) 112 (4.4) 135 (5.3) 94 (3.7) 130 (5.1) 127 (5.0) 106 (4.2) 144 (5.7) 88 (3.5) 107 (4.2)
Average precipitation days (≥ 1 mm) 8 11 11 13 12 13 13 14 10 10 9 11

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

The sunniest months in Andover are June, July and August, when the sun shines an average of 10 hours 20 minutes a day.Least sunny months in Andover: January, February and December receive an average of 5 hours 16 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Andover, 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 138 175 242 236 266 309 335 307 270 216 198 166
Mean daily daylight hours 9h 36m 10h 38m 11h 58m 13h 19m 14h 29m 15h 3m 14h 44m 13h 43m 12h 24m 11h 3m 9h 52m 9h 16m

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

Andover 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 Andover UV Index data.

Average daily maximum UV levels by month for Andover, 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