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Monthly climate in Otis, Massachusetts, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Otis features a humid continental climate (Dfb).Temperatures typically range between -4 °C (26 °F) and 22 °C (72 °F) through the year, but rarely can drop to -25 °C (-12 °F) or can rise to as high as 34 °C (94 °F).The average annual precipitation amounts to about 1530 mm (60.2 inches) and receives 141 rainy days on the 1 mm (0.04 inches) threshold annually.Otis enjoys an average of 2849 hours of sunshine throughout the year, and daylight varies from 9 hours 7 minutes to 15 hours 13 minutes per day.

Monthly average temperatures in Otis, Massachusetts, United States §

The warmest months in Otis are June, July and August, with daily mean temperatures ranging from 19 to 22 °C (67 - 72 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -4 to -1 °C (26 - 30 °F) throughout the day. On average each year, Otis experiences 54 days above 25 °C (77.0 °F) and 119 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Otis, Massachusetts, 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 16°C
(62°F)		 22°C
(71°F)		 22°C
(71°F)		 28°C
(83°F)		 32°C
(90°F)		 33°C
(92°F)		 34°C
(94°F)		 33°C
(91°F)		 31°C
(89°F)		 26°C
(79°F)		 23°C
(73°F)		 15°C
(59°F)
Mean maximum 11°C
(52°F)		 15°C
(60°F)		 18°C
(65°F)		 22°C
(72°F)		 30°C
(86°F)		 32°C
(89°F)		 33°C
(91°F)		 31°C
(88°F)		 29°C
(85°F)		 24°C
(75°F)		 19°C
(67°F)		 13°C
(56°F)
Average high 0°C
(33°F)		 2°C
(36°F)		 6°C
(43°F)		 12°C
(55°F)		 19°C
(66°F)		 24°C
(75°F)		 27°C
(80°F)		 26°C
(78°F)		 22°C
(72°F)		 16°C
(61°F)		 8°C
(47°F)		 2°C
(37°F)
Daily mean -4°C
(26°F)		 -2°C
(29°F)		 1°C
(34°F)		 8°C
(46°F)		 14°C
(57°F)		 19°C
(67°F)		 22°C
(72°F)		 21°C
(70°F)		 17°C
(63°F)		 11°C
(53°F)		 4°C
(39°F)		 -1°C
(30°F)
Average low -8°C
(19°F)		 -6°C
(21°F)		 -3°C
(26°F)		 3°C
(38°F)		 9°C
(48°F)		 14°C
(57°F)		 17°C
(64°F)		 17°C
(62°F)		 13°C
(55°F)		 7°C
(45°F)		 -1°C
(31°F)		 -5°C
(24°F)
Mean minimum -20°C
(-4°F)		 -19°C
(-2°F)		 -14°C
(7°F)		 -4°C
(26°F)		 2°C
(35°F)		 9°C
(49°F)		 13°C
(55°F)		 10°C
(51°F)		 5°C
(40°F)		 -1°C
(30°F)		 -11°C
(12°F)		 -15°C
(5°F)
Minimum -25°C
(-12°F)		 -22°C
(-8°F)		 -16°C
(4°F)		 -6°C
(22°F)		 -1°C
(31°F)		 4°C
(40°F)		 10°C
(51°F)		 8°C
(47°F)		 1°C
(35°F)		 -5°C
(24°F)		 -19°C
(-2°F)		 -21°C
(-5°F)

Compare climate in Otis with other places

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

Monthly average precipitation in Otis, Massachusetts, United States §

Otis usually has the most precipitation in April, July and October, with an average of 13 rainy days and 171 mm (6.7 inches) of precipitation per month.The driest months in Otis are January, February and March. On average, 93 mm (3.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Otis, Massachusetts, 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) 86 (3.4) 104 (4.1) 90 (3.6) 157 (6.2) 121 (4.8) 109 (4.3) 182 (7.1) 143 (5.6) 129 (5.1) 174 (6.9) 106 (4.2) 130 (5.1)
Average precipitation days (≥ 1 mm) 9 11 11 14 14 13 14 13 9 11 11 11

Monthly sunshine hours in Otis, Massachusetts, United States §

The sunniest months in Otis are June, July and August, when the sun shines an average of 10 hours 32 minutes a day.Least sunny months in Otis: January, February and December receive an average of 5 hours 5 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Otis, Massachusetts, 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 132 173 243 231 268 318 328 321 280 207 186 157
Mean daily daylight hours 9h 28m 10h 34m 11h 57m 13h 23m 14h 36m 15h 13m 14h 53m 13h 48m 12h 25m 11h 0m 9h 45m 9h 7m

Solar UV radiation in Otis, Massachusetts, United States §

Otis 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 4. For more detailed information, check out our hourly Otis UV Index data.

Average daily maximum UV levels by month for Otis, Massachusetts, 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 9 9 8 6 4 2