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Monthly climate in Princeton, North Carolina, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Princeton features a humid subtropical climate (Cfa).Temperatures typically range between 7 °C (45 °F) and 27 °C (81 °F) through the year, but rarely can drop to -13 °C (9 °F) or can rise to as high as 36 °C (98 °F).The average annual precipitation amounts to about 1283 mm (50.5 inches) and receives 128 rainy days on the 1 mm (0.04 inches) threshold annually.Princeton enjoys an average of 3159 hours of sunshine throughout the year, and daylight varies from 9 hours 47 minutes to 14 hours 30 minutes per day.

Monthly average temperatures in Princeton, North Carolina, United States §

The warmest months in Princeton are June, July and August, with daily mean temperatures ranging from 25 to 27 °C (77 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 7 to 10 °C (45 - 50 °F) throughout the day. On average each year, Princeton experiences 148 days above 25 °C (77.0 °F) and 34 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Princeton, North Carolina, 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 26°C
(79°F)		 27°C
(81°F)		 30°C
(87°F)		 31°C
(88°F)		 36°C
(97°F)		 36°C
(96°F)		 36°C
(98°F)		 35°C
(94°F)		 35°C
(95°F)		 36°C
(97°F)		 29°C
(84°F)		 25°C
(77°F)
Mean maximum 23°C
(73°F)		 25°C
(77°F)		 27°C
(81°F)		 30°C
(86°F)		 34°C
(93°F)		 34°C
(93°F)		 35°C
(96°F)		 34°C
(94°F)		 33°C
(92°F)		 32°C
(89°F)		 27°C
(80°F)		 23°C
(73°F)
Average high 12°C
(54°F)		 16°C
(60°F)		 18°C
(64°F)		 23°C
(74°F)		 27°C
(81°F)		 30°C
(86°F)		 32°C
(90°F)		 31°C
(88°F)		 29°C
(84°F)		 25°C
(76°F)		 17°C
(63°F)		 14°C
(58°F)
Daily mean 7°C
(45°F)		 10°C
(50°F)		 12°C
(54°F)		 17°C
(63°F)		 22°C
(72°F)		 25°C
(77°F)		 27°C
(81°F)		 26°C
(79°F)		 24°C
(75°F)		 19°C
(66°F)		 11°C
(53°F)		 9°C
(48°F)
Average low 2°C
(36°F)		 4°C
(40°F)		 6°C
(44°F)		 11°C
(52°F)		 17°C
(63°F)		 20°C
(69°F)		 23°C
(73°F)		 22°C
(72°F)		 19°C
(67°F)		 14°C
(58°F)		 6°C
(43°F)		 4°C
(39°F)
Mean minimum -8°C
(18°F)		 -5°C
(23°F)		 -4°C
(24°F)		 1°C
(34°F)		 6°C
(43°F)		 14°C
(58°F)		 18°C
(64°F)		 17°C
(63°F)		 12°C
(54°F)		 4°C
(40°F)		 -3°C
(27°F)		 -6°C
(22°F)
Minimum -13°C
(9°F)		 -6°C
(21°F)		 -5°C
(23°F)		 -3°C
(27°F)		 4°C
(40°F)		 10°C
(51°F)		 15°C
(60°F)		 15°C
(60°F)		 9°C
(49°F)		 1°C
(34°F)		 -5°C
(24°F)		 -8°C
(18°F)

Compare climate in Princeton with other places

Compare temperature, precipitation, sunshine, UV index in Princeton, North Carolina, United States with other places around the world.

Monthly average precipitation in Princeton, North Carolina, United States §

Princeton usually has the most precipitation in June, August and September, with an average of 13 rainy days and 139 mm (5.5 inches) of precipitation per month.The driest months in Princeton are March, October and November. On average, 75 mm (3.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Princeton, North Carolina, 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) 92 (3.6) 92 (3.6) 73 (2.9) 106 (4.2) 118 (4.7) 125 (4.9) 124 (4.9) 158 (6.2) 134 (5.3) 68 (2.7) 84 (3.3) 109 (4.3)
Average precipitation days (≥ 1 mm) 8 10 10 10 11 14 14 17 10 7 8 9

Monthly sunshine hours in Princeton, North Carolina, United States §

The sunniest months in Princeton are June, July and August, when the sun shines an average of 10 hours 32 minutes a day.Least sunny months in Princeton: January, February and December receive an average of 6 hours 7 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Princeton, North Carolina, 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 168 183 252 283 301 315 340 313 288 270 234 205
Mean daily daylight hours 10h 3m 10h 54m 11h 59m 13h 6m 14h 2m 14h 30m 14h 15m 13h 25m 12h 21m 11h 14m 10h 16m 9h 47m

Solar UV radiation in Princeton, North Carolina, United States §

Princeton experiences the highest level of ultraviolet (UV) radiation in April, June and July, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure.January, November and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Princeton UV Index data.

Average daily maximum UV levels by month for Princeton, North Carolina, 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) 4 6 8 10 10 11 11 10 9 8 5 3