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Monthly climate in Lambertville, New Jersey, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Lambertville features a humid subtropical climate (Cfa).Temperatures typically range between 1 °C (35 °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 1312 mm (51.7 inches) and receives 135 rainy days on the 1 mm (0.04 inches) threshold annually.Lambertville enjoys an average of 2928 hours of sunshine throughout the year, and daylight varies from 9 hours 20 minutes to 14 hours 58 minutes per day.

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

The warmest months in Lambertville 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 4 °C (35 - 39 °F) throughout the day. On average each year, Lambertville experiences 94 days above 25 °C (77.0 °F) and 71 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Lambertville, 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)		 26°C
(78°F)		 28°C
(82°F)		 30°C
(87°F)		 34°C
(94°F)		 35°C
(96°F)		 37°C
(98°F)		 35°C
(95°F)		 34°C
(94°F)		 35°C
(95°F)		 25°C
(77°F)		 19°C
(66°F)
Mean maximum 16°C
(61°F)		 20°C
(68°F)		 23°C
(74°F)		 28°C
(82°F)		 32°C
(90°F)		 34°C
(93°F)		 36°C
(96°F)		 34°C
(93°F)		 32°C
(90°F)		 29°C
(84°F)		 23°C
(74°F)		 17°C
(63°F)
Average high 5°C
(41°F)		 8°C
(46°F)		 11°C
(52°F)		 17°C
(62°F)		 22°C
(72°F)		 27°C
(81°F)		 30°C
(87°F)		 29°C
(84°F)		 26°C
(79°F)		 20°C
(68°F)		 12°C
(54°F)		 7°C
(45°F)
Daily mean 1°C
(35°F)		 3°C
(38°F)		 6°C
(43°F)		 12°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)		 4°C
(39°F)
Average low -2°C
(28°F)		 -1°C
(30°F)		 2°C
(35°F)		 7°C
(45°F)		 12°C
(55°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)		 -11°C
(12°F)		 -7°C
(19°F)		 -0°C
(32°F)		 5°C
(41°F)		 12°C
(53°F)		 16°C
(61°F)		 15°C
(59°F)		 9°C
(49°F)		 3°C
(37°F)		 -6°C
(22°F)		 -9°C
(17°F)
Minimum -17°C
(2°F)		 -16°C
(3°F)		 -14°C
(7°F)		 -2°C
(28°F)		 1°C
(34°F)		 9°C
(48°F)		 13°C
(56°F)		 13°C
(56°F)		 6°C
(42°F)		 1°C
(34°F)		 -9°C
(15°F)		 -12°C
(12°F)

Compare climate in Lambertville with other places

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

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

Lambertville usually has the most precipitation in May, July and August, with an average of 14 rainy days and 143 mm (5.6 inches) of precipitation per month.The driest months in Lambertville are January, September and November. On average, 80 mm (3.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Lambertville, 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) 66 (2.6) 108 (4.2) 110 (4.3) 106 (4.2) 138 (5.4) 103 (4.0) 145 (5.7) 146 (5.8) 91 (3.6) 112 (4.4) 83 (3.3) 105 (4.1)
Average precipitation days (≥ 1 mm) 8 11 10 12 14 12 14 14 10 11 9 10

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

The sunniest months in Lambertville are June, July and August, when the sun shines an average of 10 hours 28 minutes a day.Least sunny months in Lambertville: January, February and December receive an average of 5 hours 26 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Lambertville, 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 141 175 244 246 272 310 344 307 267 221 216 178
Mean daily daylight hours 9h 39m 10h 40m 11h 58m 13h 18m 14h 25m 14h 58m 14h 40m 13h 40m 12h 24m 11h 5m 9h 55m 9h 20m

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

Lambertville 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 Lambertville UV Index data.

Average daily maximum UV levels by month for Lambertville, 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