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Monthly climate in Suffern, New York, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Suffern features a humid continental climate (Dfa). Temperatures typically range between 0 °C (32 °F) and 24 °C (76 °F) through the year, but rarely can drop to -18 °C (0 °F) or can rise to as high as 36 °C (97 °F). The average annual precipitation amounts to about 1345 mm (52.9 inches) and receives 135 rainy days on the 1 mm (0.04 inches) threshold annually. Suffern enjoys an average of 2906 hours of sunshine throughout the year, and daylight varies from 9 hours 15 minutes to 15 hours 4 minutes per day.

Monthly average temperatures in Suffern, New York, United States §

The warmest months in Suffern are June, July and August, with daily mean temperatures ranging from 21 to 24 °C (70 - 76 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 0 to 2 °C (32 - 36 °F) throughout the day. On average each year, Suffern experiences 78 days above 25 °C (77.0 °F) and 84 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Suffern, 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 18°C
(65°F)		 25°C
(77°F)		 26°C
(79°F)		 29°C
(85°F)		 33°C
(92°F)		 35°C
(95°F)		 36°C
(97°F)		 35°C
(95°F)		 34°C
(93°F)		 33°C
(92°F)		 24°C
(76°F)		 17°C
(63°F)
Mean maximum 14°C
(58°F)		 19°C
(66°F)		 21°C
(70°F)		 26°C
(79°F)		 31°C
(88°F)		 33°C
(92°F)		 35°C
(96°F)		 34°C
(93°F)		 32°C
(89°F)		 28°C
(82°F)		 22°C
(72°F)		 15°C
(60°F)
Average high 4°C
(39°F)		 6°C
(43°F)		 9°C
(49°F)		 15°C
(59°F)		 21°C
(70°F)		 26°C
(79°F)		 29°C
(85°F)		 28°C
(83°F)		 25°C
(76°F)		 19°C
(66°F)		 11°C
(52°F)		 6°C
(42°F)
Daily mean -0°C
(32°F)		 2°C
(35°F)		 4°C
(40°F)		 10°C
(51°F)		 16°C
(61°F)		 21°C
(70°F)		 24°C
(76°F)		 23°C
(74°F)		 20°C
(68°F)		 14°C
(58°F)		 6°C
(44°F)		 2°C
(36°F)
Average low -4°C
(26°F)		 -2°C
(28°F)		 0°C
(33°F)		 6°C
(43°F)		 11°C
(53°F)		 16°C
(62°F)		 20°C
(68°F)		 19°C
(67°F)		 16°C
(60°F)		 10°C
(51°F)		 2°C
(36°F)		 -1°C
(30°F)
Mean minimum -14°C
(7°F)		 -13°C
(8°F)		 -8°C
(17°F)		 -1°C
(30°F)		 4°C
(40°F)		 11°C
(52°F)		 15°C
(60°F)		 14°C
(57°F)		 9°C
(48°F)		 2°C
(36°F)		 -7°C
(20°F)		 -10°C
(14°F)
Minimum -17°C
(2°F)		 -18°C
(-0°F)		 -14°C
(7°F)		 -3°C
(27°F)		 0°C
(33°F)		 8°C
(47°F)		 13°C
(55°F)		 13°C
(55°F)		 5°C
(42°F)		 0°C
(33°F)		 -13°C
(10°F)		 -13°C
(10°F)

Compare climate in Suffern with other places

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

Monthly average precipitation in Suffern, New York, United States §

Suffern usually has the most precipitation in July, August and October, with an average of 12 rainy days and 140 mm (5.5 inches) of precipitation per month. The driest months in Suffern are January, March and November. On average, 84 mm (3.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Suffern, 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) 70 (2.8) 99 (3.9) 95 (3.8) 118 (4.7) 130 (5.1) 99 (3.9) 147 (5.8) 131 (5.2) 114 (4.5) 141 (5.6) 88 (3.5) 111 (4.4)
Average precipitation days (≥ 1 mm) 8 11 10 12 13 13 14 13 11 11 9 10

Monthly sunshine hours in Suffern, New York, United States §

The sunniest months in Suffern are June, July and August, when the sun shines an average of 10 hours 25 minutes a day. Least sunny months in Suffern: January, February and December receive an average of 5 hours 24 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Suffern, 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 143 177 247 239 270 310 337 310 274 218 204 171
Mean daily daylight hours 9h 34m 10h 38m 11h 58m 13h 20m 14h 29m 15h 4m 14h 45m 13h 43m 12h 24m 11h 3m 9h 51m 9h 15m

Solar UV radiation in Suffern, New York, United States §

Suffern 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 Suffern UV Index data.

Average daily maximum UV levels by month for Suffern, 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 Suffern, New York, United States

Discover in-depth weather details for every month in Suffern. 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 Suffern'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.