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Monthly climate in Dunstable, Massachusetts, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Dunstable features a humid continental climate (Dfb).Temperatures typically range between -2 °C (29 °F) and 23 °C (74 °F) through the year, but rarely can drop to -22 °C (-7 °F) or can rise to as high as 37 °C (99 °F).The average annual precipitation amounts to about 1173 mm (46.2 inches) and receives 123 rainy days on the 1 mm (0.04 inches) threshold annually.Dunstable enjoys an average of 2915 hours of sunshine throughout the year, and daylight varies from 9 hours 5 minutes to 15 hours 15 minutes per day.

Monthly average temperatures in Dunstable, Massachusetts, United States §

The warmest months in Dunstable are June, July and August, with daily mean temperatures ranging from 20 to 23 °C (69 - 74 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -2 to 0 °C (29 - 32 °F) throughout the day. On average each year, Dunstable experiences 74 days above 25 °C (77.0 °F) and 106 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Dunstable, 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 19°C
(67°F)		 22°C
(73°F)		 22°C
(72°F)		 29°C
(85°F)		 34°C
(94°F)		 37°C
(99°F)		 37°C
(98°F)		 35°C
(96°F)		 34°C
(94°F)		 29°C
(84°F)		 24°C
(76°F)		 17°C
(62°F)
Mean maximum 13°C
(56°F)		 17°C
(63°F)		 19°C
(67°F)		 23°C
(73°F)		 32°C
(90°F)		 33°C
(92°F)		 35°C
(96°F)		 34°C
(94°F)		 32°C
(89°F)		 26°C
(78°F)		 21°C
(70°F)		 15°C
(60°F)
Average high 2°C
(36°F)		 4°C
(39°F)		 7°C
(45°F)		 13°C
(56°F)		 20°C
(68°F)		 26°C
(79°F)		 28°C
(84°F)		 28°C
(83°F)		 24°C
(75°F)		 17°C
(63°F)		 9°C
(49°F)		 4°C
(39°F)
Daily mean -2°C
(29°F)		 -1°C
(31°F)		 2°C
(37°F)		 9°C
(48°F)		 15°C
(59°F)		 20°C
(69°F)		 23°C
(74°F)		 23°C
(73°F)		 19°C
(66°F)		 12°C
(55°F)		 5°C
(41°F)		 -0°C
(32°F)
Average low -6°C
(22°F)		 -5°C
(23°F)		 -2°C
(29°F)		 4°C
(40°F)		 10°C
(50°F)		 15°C
(59°F)		 18°C
(65°F)		 18°C
(64°F)		 14°C
(57°F)		 8°C
(47°F)		 0°C
(33°F)		 -4°C
(25°F)
Mean minimum -18°C
(1°F)		 -16°C
(3°F)		 -13°C
(9°F)		 -3°C
(27°F)		 3°C
(38°F)		 9°C
(48°F)		 13°C
(57°F)		 11°C
(53°F)		 6°C
(43°F)		 -1°C
(31°F)		 -9°C
(17°F)		 -15°C
(5°F)
Minimum -22°C
(-7°F)		 -18°C
(-1°F)		 -19°C
(-1°F)		 -4°C
(25°F)		 1°C
(35°F)		 4°C
(40°F)		 12°C
(55°F)		 9°C
(49°F)		 3°C
(37°F)		 -5°C
(23°F)		 -15°C
(6°F)		 -21°C
(-5°F)

Compare climate in Dunstable with other places

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

Monthly average precipitation in Dunstable, Massachusetts, United States §

Dunstable usually has the most precipitation in April, July and October, with an average of 12 rainy days and 130 mm (5.1 inches) of precipitation per month.The driest months in Dunstable are January, May and September. On average, 76 mm (3.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Dunstable, 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) 71 (2.8) 84 (3.3) 82 (3.2) 126 (5.0) 81 (3.2) 85 (3.3) 136 (5.4) 85 (3.4) 77 (3.0) 128 (5.0) 98 (3.9) 120 (4.7)
Average precipitation days (≥ 1 mm) 8 10 9 12 11 11 13 11 8 11 10 9

Monthly sunshine hours in Dunstable, Massachusetts, United States §

The sunniest months in Dunstable are June, July and August, when the sun shines an average of 10 hours 33 minutes a day.Least sunny months in Dunstable: January, February and December receive an average of 5 hours 35 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Dunstable, 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 150 183 249 230 280 319 325 325 274 207 193 174
Mean daily daylight hours 9h 26m 10h 33m 11h 57m 13h 24m 14h 38m 15h 15m 14h 55m 13h 49m 12h 26m 10h 59m 9h 43m 9h 5m

Solar UV radiation in Dunstable, Massachusetts, United States §

Dunstable 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 Dunstable UV Index data.

Average daily maximum UV levels by month for Dunstable, 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 5 8 9 10 9 9 7 6 3 2