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Monthly climate in Chelsea, Vermont, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Chelsea features a humid continental climate (Dfb). Temperatures typically range between -7 °C (19 °F) and 20 °C (69 °F) through the year, but rarely can drop to -31 °C (-23 °F) or can rise to as high as 35 °C (95 °F). The average annual precipitation amounts to about 1181 mm (46.5 inches) and receives 147 rainy days on the 1 mm (0.04 inches) threshold annually. Chelsea enjoys an average of 2769 hours of sunshine throughout the year, and daylight varies from 8 hours 56 minutes to 15 hours 24 minutes per day.

Monthly average temperatures in Chelsea, Vermont, United States §

The warmest months in Chelsea are June, July and August, with daily mean temperatures ranging from 17 to 20 °C (64 - 69 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -7 to -5 °C (19 - 24 °F) throughout the day. On average each year, Chelsea experiences 42 days above 25 °C (77.0 °F) and 143 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Chelsea, Vermont, 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 13°C
(56°F)		 19°C
(67°F)		 19°C
(67°F)		 25°C
(78°F)		 33°C
(92°F)		 33°C
(92°F)		 35°C
(95°F)		 32°C
(91°F)		 31°C
(88°F)		 24°C
(76°F)		 22°C
(71°F)		 14°C
(57°F)
Mean maximum 8°C
(47°F)		 11°C
(52°F)		 15°C
(59°F)		 20°C
(69°F)		 30°C
(85°F)		 29°C
(85°F)		 31°C
(88°F)		 31°C
(87°F)		 28°C
(83°F)		 22°C
(72°F)		 16°C
(62°F)		 11°C
(53°F)
Average high -3°C
(27°F)		 -1°C
(30°F)		 3°C
(38°F)		 10°C
(50°F)		 18°C
(64°F)		 23°C
(73°F)		 25°C
(78°F)		 24°C
(76°F)		 21°C
(70°F)		 14°C
(57°F)		 5°C
(41°F)		 -1°C
(31°F)
Daily mean -7°C
(19°F)		 -6°C
(22°F)		 -2°C
(29°F)		 5°C
(42°F)		 12°C
(55°F)		 17°C
(64°F)		 20°C
(69°F)		 19°C
(67°F)		 15°C
(60°F)		 9°C
(48°F)		 1°C
(33°F)		 -5°C
(24°F)
Average low -12°C
(10°F)		 -11°C
(13°F)		 -6°C
(21°F)		 1°C
(34°F)		 7°C
(45°F)		 11°C
(53°F)		 15°C
(59°F)		 14°C
(58°F)		 10°C
(50°F)		 5°C
(41°F)		 -4°C
(26°F)		 -9°C
(16°F)
Mean minimum -25°C
(-13°F)		 -23°C
(-10°F)		 -20°C
(-3°F)		 -6°C
(22°F)		 -0°C
(32°F)		 6°C
(43°F)		 9°C
(49°F)		 7°C
(46°F)		 1°C
(34°F)		 -4°C
(25°F)		 -16°C
(3°F)		 -25°C
(-12°F)
Minimum -31°C
(-23°F)		 -27°C
(-17°F)		 -23°C
(-9°F)		 -9°C
(17°F)		 -2°C
(29°F)		 0°C
(32°F)		 8°C
(46°F)		 4°C
(40°F)		 -4°C
(25°F)		 -5°C
(23°F)		 -20°C
(-4°F)		 -28°C
(-18°F)

Compare climate in Chelsea with other places

Compare temperature, precipitation, sunshine, UV index in Chelsea, Vermont, United States with other places around the world.

Monthly average precipitation in Chelsea, Vermont, United States §

Chelsea usually has the most precipitation in April, July and October, with an average of 13 rainy days and 133 mm (5.2 inches) of precipitation per month. The driest months in Chelsea are January, March and September. On average, 73 mm (2.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Chelsea, Vermont, 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) 77 (3.0) 80 (3.2) 71 (2.8) 117 (4.6) 96 (3.8) 97 (3.8) 140 (5.5) 98 (3.9) 71 (2.8) 141 (5.6) 104 (4.1) 88 (3.4)
Average precipitation days (≥ 1 mm) 10 12 11 14 12 13 14 13 8 13 14 13

Monthly sunshine hours in Chelsea, Vermont, United States §

The sunniest months in Chelsea are June, July and August, when the sun shines an average of 10 hours 43 minutes a day. Least sunny months in Chelsea: January, November and December receive an average of 4 hours 33 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Chelsea, Vermont, 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 118 157 233 219 266 321 330 334 290 196 157 143
Mean daily daylight hours 9h 18m 10h 28m 11h 57m 13h 28m 14h 46m 15h 24m 15h 3m 13h 54m 12h 27m 10h 56m 9h 37m 8h 56m

Solar UV radiation in Chelsea, Vermont, United States §

Chelsea experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 9 - 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 3. For more detailed information, check out our hourly Chelsea UV Index data.

Average daily maximum UV levels by month for Chelsea, Vermont, 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) 2 4 5 8 9 10 9 9 7 5 3 2

Detailed Monthly Weather Insights for Chelsea, Vermont, United States

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