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Climate & Temperature > Usa > Boston, Massachusetts Climate

Climate of Boston, Massachusetts, Usa Average Weather

Boston, Massachusetts Climate Graph
  • Boston, Massachusetts, usa, 42°22'N, 71°1'W, 9 m (30 ft)
  • Boston, Massachusetts has a humid subtropical climate that is mild with no dry season, constantly moist (year-round rainfall), hot summers and moderate seasonality (Köppen-Geiger classification: Cfa).
  • According to the Holdridge life zones system of bioclimatic classification Boston, Massachusetts is close to the cool temperate moist forest biome.
  • The annual average temperature is 10.7 degrees Celsius (51.3 degrees Fahrenheit).
  • Total annual Precipitation averages 1054.3 mm (41.5 in).
  • Annual sunshine averages 2739 hours.
  • If Boston, Massachusetts were situated on the opposite side of the world what would the climate be like? Follow this link to find the nearest location on ClimaTemps.com!

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Average Max Temperature °C ( °F) 2 (36) 3 (38) 8 (46) 13 (56) 19 (67) 25 (76) 28 (82) 27 (80) 23 (73) 17 (63) 11 (52) 5 (40) 15 (59)
Average Temperature °C ( °F) -2 (29) -1 (30) 4 (39) 9 (48) 15 (58) 20 (68) 23 (74) 22 (72) 18 (65) 13 (55) 7 (45) 1 (34) 11 (51)
Average Min Temperature °C ( °F) -6 (22) -5 (23) 0 (31) 5 (40) 10 (50) 15 (59) 18 (65) 18 (64) 14 (57) 8 (47) 4 (38) -3 (27) 6 (44)
Average Precipitation mm (in) 91 (4) 92 (4) 94 (4) 91 (4) 83 (3) 79 (3) 72 (3) 82 (3) 78 (3) 84 (3) 107 (4) 102 (4) 1054 (42)
Number of Wet Days (probability of rain on a day) 12 (39%) 11 (39%) 12 (39%) 12 (40%) 12 (39%) 11 (37%) 10 (32%) 10 (32%) 9 (30%) 9 (29%) 10 (33%) 10 (32%)   128 (35%)
Average Sunlight Hours/ Day 04:52 06:11 06:48 07:12 08:48 10:08 10:30 09:15 08:16 07:03 05:28 05:19   07:29
Average Daylight Hours & Minutes/ Day 09:27 10:29 11:52 13:20 14:34 15:13 14:56 13:51 12:26 10:58 09:44 09:07   12:00
Percentage of Sunny (Cloudy) Daylight Hours 52 (48) 60 (40) 58 (42) 55 (45) 61 (39) 67 (33) 71 (29) 68 (32) 67 (33) 65 (35) 57 (43) 59 (41)   62 (38)

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