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Monthly climate in New Fairfield, Connecticut, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification New Fairfield features a humid subtropical climate (Cfa).Temperatures typically range between -1 °C (30 °F) and 24 °C (75 °F) through the year, but rarely can drop to -20 °C (-4 °F) or can rise to as high as 36 °C (97 °F).The average annual precipitation amounts to about 1339 mm (52.7 inches) and receives 135 rainy days on the 1 mm (0.04 inches) threshold annually.New Fairfield enjoys an average of 2950 hours of sunshine throughout the year, and daylight varies from 9 hours 12 minutes to 15 hours 6 minutes per day.

Monthly average temperatures in New Fairfield, Connecticut, United States §

The warmest months in New Fairfield are June, July and August, with daily mean temperatures ranging from 20 to 24 °C (69 - 75 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 1 °C (30 - 34 °F) throughout the day. On average each year, New Fairfield experiences 70 days above 25 °C (77.0 °F) and 95 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in New Fairfield, Connecticut, 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)		 23°C
(74°F)		 25°C
(77°F)		 28°C
(84°F)		 33°C
(91°F)		 35°C
(95°F)		 36°C
(97°F)		 35°C
(95°F)		 33°C
(91°F)		 31°C
(89°F)		 24°C
(75°F)		 16°C
(61°F)
Mean maximum 13°C
(55°F)		 17°C
(63°F)		 20°C
(68°F)		 24°C
(76°F)		 30°C
(87°F)		 33°C
(91°F)		 35°C
(95°F)		 33°C
(91°F)		 31°C
(88°F)		 26°C
(79°F)		 21°C
(70°F)		 14°C
(58°F)
Average high 2°C
(37°F)		 5°C
(41°F)		 8°C
(47°F)		 14°C
(58°F)		 20°C
(68°F)		 25°C
(78°F)		 28°C
(83°F)		 27°C
(82°F)		 24°C
(75°F)		 18°C
(64°F)		 10°C
(50°F)		 5°C
(40°F)
Daily mean -1°C
(30°F)		 0°C
(33°F)		 3°C
(38°F)		 9°C
(49°F)		 15°C
(59°F)		 20°C
(69°F)		 24°C
(75°F)		 23°C
(73°F)		 19°C
(66°F)		 13°C
(56°F)		 6°C
(42°F)		 1°C
(34°F)
Average low -5°C
(23°F)		 -4°C
(25°F)		 -1°C
(31°F)		 5°C
(41°F)		 10°C
(51°F)		 15°C
(60°F)		 19°C
(67°F)		 19°C
(66°F)		 15°C
(58°F)		 9°C
(49°F)		 1°C
(34°F)		 -3°C
(28°F)
Mean minimum -17°C
(2°F)		 -15°C
(6°F)		 -10°C
(14°F)		 -2°C
(29°F)		 3°C
(38°F)		 10°C
(51°F)		 14°C
(58°F)		 13°C
(55°F)		 7°C
(45°F)		 1°C
(34°F)		 -8°C
(18°F)		 -11°C
(12°F)
Minimum -20°C
(-4°F)		 -20°C
(-4°F)		 -15°C
(5°F)		 -4°C
(25°F)		 0°C
(32°F)		 6°C
(44°F)		 13°C
(56°F)		 11°C
(52°F)		 4°C
(39°F)		 -1°C
(30°F)		 -13°C
(9°F)		 -15°C
(5°F)

Compare climate in New Fairfield with other places

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

Monthly average precipitation in New Fairfield, Connecticut, United States §

New Fairfield usually has the most precipitation in April, July and October, with an average of 13 rainy days and 139 mm (5.5 inches) of precipitation per month.The driest months in New Fairfield 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 New Fairfield, Connecticut, 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) 71 (2.8) 97 (3.8) 89 (3.5) 124 (4.9) 115 (4.5) 102 (4.0) 145 (5.7) 119 (4.7) 122 (4.8) 147 (5.8) 93 (3.7) 115 (4.5)
Average precipitation days (≥ 1 mm) 8 11 10 13 14 12 14 12 9 12 9 11

Monthly sunshine hours in New Fairfield, Connecticut, United States §

The sunniest months in New Fairfield are June, July and August, when the sun shines an average of 10 hours 35 minutes a day.Least sunny months in New Fairfield: January, February and December receive an average of 5 hours 28 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in New Fairfield, Connecticut, 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 146 178 253 242 275 315 339 320 280 221 204 172
Mean daily daylight hours 9h 33m 10h 37m 11h 58m 13h 21m 14h 31m 15h 6m 14h 47m 13h 45m 12h 25m 11h 2m 9h 50m 9h 12m

Solar UV radiation in New Fairfield, Connecticut, United States §

New Fairfield 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 New Fairfield UV Index data.

Average daily maximum UV levels by month for New Fairfield, Connecticut, 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