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Monthly climate in Chesterfield, Massachusetts, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Chesterfield features a humid continental climate (Dfb).Temperatures typically range between -3 °C (26 °F) and 22 °C (72 °F) through the year, but rarely can drop to -24 °C (-11 °F) or can rise to as high as 36 °C (98 °F).The average annual precipitation amounts to about 1408 mm (55.4 inches) and receives 137 rainy days on the 1 mm (0.04 inches) threshold annually.Chesterfield enjoys an average of 2874 hours of sunshine throughout the year, and daylight varies from 9 hours 6 minutes to 15 hours 13 minutes per day.

Monthly average temperatures in Chesterfield, Massachusetts, United States §

The warmest months in Chesterfield 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 -3 to -1 °C (26 - 30 °F) throughout the day. On average each year, Chesterfield experiences 61 days above 25 °C (77.0 °F) and 118 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Chesterfield, 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 17°C
(63°F)		 22°C
(72°F)		 22°C
(71°F)		 28°C
(83°F)		 33°C
(91°F)		 34°C
(94°F)		 36°C
(98°F)		 33°C
(92°F)		 32°C
(89°F)		 27°C
(81°F)		 23°C
(74°F)		 15°C
(59°F)
Mean maximum 11°C
(53°F)		 16°C
(60°F)		 18°C
(65°F)		 22°C
(72°F)		 30°C
(87°F)		 32°C
(90°F)		 34°C
(93°F)		 32°C
(90°F)		 30°C
(86°F)		 24°C
(76°F)		 20°C
(68°F)		 13°C
(56°F)
Average high 1°C
(33°F)		 3°C
(37°F)		 6°C
(43°F)		 13°C
(55°F)		 19°C
(67°F)		 25°C
(77°F)		 27°C
(82°F)		 26°C
(80°F)		 23°C
(73°F)		 16°C
(61°F)		 8°C
(47°F)		 3°C
(37°F)
Daily mean -3°C
(26°F)		 -2°C
(29°F)		 1°C
(35°F)		 8°C
(46°F)		 14°C
(58°F)		 19°C
(67°F)		 22°C
(72°F)		 21°C
(71°F)		 17°C
(64°F)		 11°C
(53°F)		 4°C
(39°F)		 -1°C
(30°F)
Average low -8°C
(19°F)		 -7°C
(20°F)		 -3°C
(26°F)		 3°C
(38°F)		 9°C
(48°F)		 14°C
(57°F)		 17°C
(64°F)		 16°C
(62°F)		 13°C
(55°F)		 7°C
(45°F)		 -1°C
(31°F)		 -5°C
(23°F)
Mean minimum -20°C
(-4°F)		 -19°C
(-1°F)		 -14°C
(6°F)		 -3°C
(26°F)		 2°C
(36°F)		 9°C
(48°F)		 12°C
(55°F)		 10°C
(49°F)		 4°C
(39°F)		 -1°C
(30°F)		 -11°C
(12°F)		 -17°C
(2°F)
Minimum -24°C
(-11°F)		 -22°C
(-6°F)		 -17°C
(1°F)		 -6°C
(22°F)		 -0°C
(32°F)		 3°C
(38°F)		 10°C
(51°F)		 8°C
(46°F)		 1°C
(33°F)		 -4°C
(24°F)		 -20°C
(-4°F)		 -22°C
(-8°F)

Compare climate in Chesterfield with other places

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

Monthly average precipitation in Chesterfield, Massachusetts, United States §

Chesterfield usually has the most precipitation in April, July and October, with an average of 13 rainy days and 160 mm (6.3 inches) of precipitation per month.The driest months in Chesterfield are January, March and June. On average, 87 mm (3.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Chesterfield, 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) 84 (3.3) 102 (4.0) 86 (3.4) 148 (5.8) 109 (4.3) 91 (3.6) 167 (6.6) 114 (4.5) 111 (4.4) 165 (6.5) 105 (4.1) 127 (5.0)
Average precipitation days (≥ 1 mm) 9 11 11 14 13 11 14 12 8 12 11 11

Monthly sunshine hours in Chesterfield, Massachusetts, United States §

The sunniest months in Chesterfield are June, July and August, when the sun shines an average of 10 hours 30 minutes a day.Least sunny months in Chesterfield: January, February and December receive an average of 5 hours 18 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Chesterfield, 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 139 178 246 232 268 319 327 320 277 207 192 165
Mean daily daylight hours 9h 27m 10h 33m 11h 57m 13h 24m 14h 37m 15h 13m 14h 53m 13h 48m 12h 25m 11h 0m 9h 45m 9h 6m

Solar UV radiation in Chesterfield, Massachusetts, United States §

Chesterfield 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 Chesterfield UV Index data.

Average daily maximum UV levels by month for Chesterfield, 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