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Monthly climate in Union City, New Jersey, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Union City features a humid subtropical climate (Cfa).Temperatures typically range between 1 °C (34 °F) and 26 °C (78 °F) through the year, but rarely can drop to -18 °C (-1 °F) or can rise to as high as 36 °C (96 °F).The average annual precipitation amounts to about 1267 mm (49.9 inches) and receives 129 rainy days on the 1 mm (0.04 inches) threshold annually.Union City enjoys an average of 2913 hours of sunshine throughout the year, and daylight varies from 9 hours 17 minutes to 15 hours 2 minutes per day.

Monthly average temperatures in Union City, New Jersey, United States §

The warmest months in Union City are June, July and August, with daily mean temperatures ranging from 22 to 26 °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 4 °C (34 - 39 °F) throughout the day. On average each year, Union City experiences 77 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 Union City, 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 18°C
(64°F)		 20°C
(68°F)		 25°C
(77°F)		 27°C
(82°F)		 31°C
(88°F)		 35°C
(94°F)		 36°C
(96°F)		 34°C
(93°F)		 33°C
(92°F)		 33°C
(91°F)		 24°C
(75°F)		 18°C
(64°F)
Mean maximum 14°C
(58°F)		 16°C
(61°F)		 20°C
(68°F)		 23°C
(75°F)		 29°C
(85°F)		 32°C
(91°F)		 35°C
(95°F)		 32°C
(91°F)		 30°C
(87°F)		 27°C
(81°F)		 21°C
(71°F)		 16°C
(60°F)
Average high 4°C
(40°F)		 6°C
(43°F)		 9°C
(49°F)		 15°C
(59°F)		 20°C
(69°F)		 26°C
(79°F)		 29°C
(85°F)		 28°C
(82°F)		 24°C
(76°F)		 19°C
(67°F)		 12°C
(53°F)		 6°C
(44°F)
Daily mean 1°C
(34°F)		 2°C
(36°F)		 5°C
(42°F)		 11°C
(52°F)		 17°C
(62°F)		 22°C
(72°F)		 26°C
(78°F)		 25°C
(76°F)		 21°C
(70°F)		 16°C
(61°F)		 8°C
(47°F)		 4°C
(39°F)
Average low -2°C
(28°F)		 -1°C
(30°F)		 2°C
(36°F)		 8°C
(46°F)		 13°C
(55°F)		 18°C
(65°F)		 22°C
(72°F)		 22°C
(71°F)		 18°C
(64°F)		 13°C
(55°F)		 4°C
(40°F)		 1°C
(33°F)
Mean minimum -13°C
(10°F)		 -11°C
(12°F)		 -5°C
(23°F)		 2°C
(35°F)		 7°C
(44°F)		 14°C
(57°F)		 18°C
(64°F)		 17°C
(63°F)		 12°C
(53°F)		 6°C
(43°F)		 -4°C
(26°F)		 -7°C
(19°F)
Minimum -18°C
(-1°F)		 -16°C
(4°F)		 -9°C
(16°F)		 -1°C
(31°F)		 3°C
(37°F)		 10°C
(50°F)		 17°C
(62°F)		 16°C
(61°F)		 9°C
(49°F)		 4°C
(39°F)		 -9°C
(17°F)		 -11°C
(13°F)

Compare climate in Union City with other places

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

Monthly average precipitation in Union City, New Jersey, United States §

Union City usually has the most precipitation in July, August and October, with an average of 12 rainy days and 134 mm (5.3 inches) of precipitation per month.The driest months in Union City are January, September and November. On average, 81 mm (3.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Union City, 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) 67 (2.7) 102 (4.0) 98 (3.8) 112 (4.4) 114 (4.5) 92 (3.6) 148 (5.8) 127 (5.0) 92 (3.6) 128 (5.0) 83 (3.3) 106 (4.2)
Average precipitation days (≥ 1 mm) 7 10 10 12 13 13 13 14 9 10 8 10

Monthly sunshine hours in Union City, New Jersey, United States §

The sunniest months in Union City are June, July and August, when the sun shines an average of 10 hours 25 minutes a day.Least sunny months in Union City: January, February and December receive an average of 5 hours 29 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Union City, 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 147 176 248 237 271 310 338 309 272 218 208 174
Mean daily daylight hours 9h 36m 10h 39m 11h 58m 13h 19m 14h 28m 15h 2m 14h 43m 13h 42m 12h 24m 11h 3m 9h 53m 9h 17m

Solar UV radiation in Union City, New Jersey, United States §

Union City 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 Union City UV Index data.

Average daily maximum UV levels by month for Union City, 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 9 9 8 6 4 2