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Monthly climate in Barnum Island, New York, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Barnum Island features a humid subtropical climate (Cfa). Temperatures typically range between 2 °C (36 °F) and 25 °C (77 °F) through the year, but rarely can drop to -14 °C (6 °F) or can rise to as high as 34 °C (94 °F). The average annual precipitation amounts to about 1372 mm (54.0 inches) and receives 133 rainy days on the 1 mm (0.04 inches) threshold annually. Barnum Island enjoys an average of 3058 hours of sunshine throughout the year, and daylight varies from 9 hours 18 minutes to 15 hours 0 minutes per day.

Monthly average temperatures in Barnum Island, New York, United States §

The warmest months in Barnum Island are July, August and September, with daily mean temperatures ranging from 21 to 25 °C (71 - 77 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 2 to 5 °C (36 - 41 °F) throughout the day. On average each year, Barnum Island experiences 55 days above 25 °C (77.0 °F) and 44 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Barnum Island, New York, 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)		 17°C
(64°F)		 22°C
(72°F)		 25°C
(77°F)		 28°C
(83°F)		 30°C
(87°F)		 34°C
(94°F)		 32°C
(90°F)		 31°C
(87°F)		 31°C
(88°F)		 22°C
(71°F)		 17°C
(63°F)
Mean maximum 14°C
(57°F)		 14°C
(58°F)		 17°C
(63°F)		 20°C
(68°F)		 26°C
(79°F)		 29°C
(85°F)		 32°C
(89°F)		 30°C
(87°F)		 29°C
(84°F)		 26°C
(79°F)		 20°C
(69°F)		 15°C
(60°F)
Average high 5°C
(41°F)		 6°C
(43°F)		 8°C
(47°F)		 13°C
(55°F)		 18°C
(64°F)		 23°C
(74°F)		 27°C
(81°F)		 26°C
(80°F)		 24°C
(75°F)		 19°C
(66°F)		 12°C
(54°F)		 7°C
(46°F)
Daily mean 2°C
(36°F)		 3°C
(38°F)		 5°C
(42°F)		 10°C
(50°F)		 15°C
(59°F)		 21°C
(69°F)		 25°C
(77°F)		 24°C
(76°F)		 21°C
(71°F)		 16°C
(62°F)		 9°C
(49°F)		 5°C
(41°F)
Average low -1°C
(31°F)		 0°C
(33°F)		 3°C
(37°F)		 7°C
(45°F)		 12°C
(54°F)		 18°C
(65°F)		 22°C
(73°F)		 22°C
(72°F)		 19°C
(66°F)		 14°C
(58°F)		 6°C
(43°F)		 2°C
(36°F)
Mean minimum -10°C
(14°F)		 -9°C
(17°F)		 -5°C
(24°F)		 2°C
(36°F)		 7°C
(44°F)		 14°C
(57°F)		 18°C
(65°F)		 18°C
(65°F)		 13°C
(56°F)		 7°C
(45°F)		 -2°C
(28°F)		 -5°C
(23°F)
Minimum -14°C
(6°F)		 -14°C
(7°F)		 -8°C
(18°F)		 -0°C
(32°F)		 2°C
(37°F)		 11°C
(51°F)		 17°C
(63°F)		 17°C
(63°F)		 11°C
(52°F)		 5°C
(41°F)		 -7°C
(20°F)		 -9°C
(15°F)

Compare climate in Barnum Island with other places

Compare temperature, precipitation, sunshine, UV index in Barnum Island, New York, United States with other places around the world.

Monthly average precipitation in Barnum Island, New York, United States §

Barnum Island usually has the most precipitation in February, October and December, with an average of 11 rainy days and 135 mm (5.3 inches) of precipitation per month. The driest months in Barnum Island are January, June and September. On average, 88 mm (3.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Barnum Island, New York, 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) 80 (3.2) 127 (5.0) 106 (4.2) 126 (5.0) 126 (5.0) 86 (3.4) 127 (5.0) 116 (4.6) 97 (3.8) 144 (5.7) 101 (4.0) 133 (5.2)
Average precipitation days (≥ 1 mm) 9 12 10 12 13 12 11 12 10 12 10 10

Monthly sunshine hours in Barnum Island, New York, United States §

The sunniest months in Barnum Island are June, July and August, when the sun shines an average of 10 hours 56 minutes a day. Least sunny months in Barnum Island: 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 Barnum Island, New York, 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 153 182 259 251 293 326 354 326 283 233 215 179
Mean daily daylight hours 9h 37m 10h 39m 11h 58m 13h 18m 14h 27m 15h 0m 14h 42m 13h 41m 12h 24m 11h 4m 9h 54m 9h 18m

Solar UV radiation in Barnum Island, New York, United States §

Barnum Island 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 Barnum Island UV Index data.

Average daily maximum UV levels by month for Barnum Island, New York, 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

Detailed Monthly Weather Insights for Barnum Island, New York, United States

Discover in-depth weather details for every month in Barnum Island. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Barnum Island's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.