Dedham, Massachusetts, United States Climate

Weather: 5.43°C/41.77°F, Wind SW at 5.81 km/h, 66% Humidity, 0% Chance of rain

United States
(Photo by Andrea Davis on Unsplash)
Contents

Dedham Climate Summary

Located at an elevation of None meters (0 feet) above sea level, Dedham has a Humid continental, no dry season, hot summer climate (Classification: Dfa). The district’s yearly temperature is 12.42ºC (54.36ºF) and it is -0.22% lower than United States’s averages. Dedham typically receives about 38.08 millimeters (1.5 inches) of precipitation and has 39.52 rainy days (10.83% of the time) annually.

CountryUnited States
CityMassachusetts
Longitude-71.1676536
Latitude42.2436085
Attitude/ElevationNonem (0ft)
Local timeWednesday 21:26
Annual high temperature14.88ºC (58.78ºF)
Annual low temperature8.01ºC (46.42ºF)
Average annual precip.38.08mm (1.5in)
Warmest monthJuly (29.68ºC / 85.42ºF)
Coldest MonthJanuary (-4.66ºC / 23.61ºF)
Wettest MonthDecember (55.28mm / 2.18in)
Driest MonthSeptember (23.15mm / 0.91in)
Number of days with rainfall (≥ 1.0 mm)39.52 days (10.83%)
Days with no rain325.48 days (89.17%)
Humidity68.63%

Climate Dedham: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)17.0(62.6)19.0(66.2)18.0(64.4)22.0(71.6)33.0(91.4)35.0(95.0)39.0(102.2)37.0(98.6)35.0(95.0)28.0(82.4)22.0(71.6)17.0(62.6)39.0(102.2)
Average high °C (°F)1.86(35.35)4.24(39.63)6.35(43.43)11.64(52.95)19.16(66.49)24.82(76.68)29.68(85.42)28.01(82.42)23.31(73.96)16.2(61.16)9.17(48.51)4.17(39.51)14.88(58.78)
Daily mean °C (°F)-0.23(31.59)1.86(35.35)4.0(39.2)9.14(48.45)16.4(61.52)21.98(71.56)26.62(79.92)25.35(77.63)20.83(69.49)13.94(57.09)6.87(44.37)2.23(36.01)12.42(54.36)
Average low °C (°F)-4.66(23.61)-1.88(28.62)0.09(32.16)4.39(39.9)11.29(52.32)16.84(62.31)21.59(70.86)20.7(69.26)16.64(61.95)9.94(49.89)2.82(37.08)-1.63(29.07)8.01(46.42)
Record low °C (°F)-20.0(-4.0)-21.0(-5.8)-12.0(10.4)-3.0(26.6)2.0(35.6)9.0(48.2)16.0(60.8)12.0(53.6)7.0(44.6)-3.0(26.6)-9.0(15.8)-11.0(12.2)-21.0(-5.8)
Average precipitation mm (inches)38.95(1.53)35.71(1.41)45.71(1.8)44.51(1.75)27.26(1.07)26.37(1.04)34.48(1.36)34.75(1.37)23.15(0.91)43.88(1.73)46.89(1.85)55.28(2.18)38.08(1.5)
Average precipitation days (≥ 1.0 mm)2.453.453.274.184.03.273.823.452.363.273.362.643.29
Average relative humidity (%)68.2268.7369.4766.2166.8666.4467.1368.3569.1771.4169.3372.2968.63
Mean monthly sunshine hours6.728.578.7810.1912.4713.1413.5412.4610.537.936.686.749.81

Climate Graph

The chart below shows the mean monthly temperature and precipitation of Dedham in recent years.

Dedham

Dedham Temperature by Month

July
26.62°C | 79.92°F
August
25.35°C | 77.63°F
June
21.98°C | 71.56°F
September
20.83°C | 69.49°F
May
16.4°C | 61.52°F
October
13.94°C | 57.09°F
April
9.14°C | 48.45°F
November
6.87°C | 44.37°F
March
4.0°C | 39.2°F
December
2.23°C | 36.01°F
February
1.86°C | 35.35°F
January
-0.23°C | 31.59°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature24.0°C (75.2°F)16.55°C (61.79°F)11.0°C (51.8°F)
Avg Temperature22.0°C (71.6°F)14.39°C (57.9°F)10.0°C (50.0°F)
Min Temperature18.0°C (64.4°F)11.1°C (51.98°F)7.0°C (44.6°F)
Dew PointMaxAverageMin
Dew Point17.0°C (62.6°F)8.87°C (47.97°F)2.0°C (35.6°F)
PrecipitationMaxAverageMinSum
Precipitation46.0mm | 1.81in4.95mm | 0.19in0.0mm | 0in153.3mm | 6.04in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind30.0kmh | 18.64mph14.0kmh | 8.7mph5.0kmh | 3.11mph
Gust Wind45.0kmh | 27.96mph19.48kmh | 12.1mph6.0kmh | 3.73mph
Sea Level PressureMaxAverageMin
Sea Level Pressure46.0mb4.95mb0.0mb
Dedham

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
October° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2019-10-0119 | 66.214 | 57.27614 | 8.730.03 | 10172.7 | 0.11
2019-10-0220 | 68.017 | 62.68615 | 9.3229.83 | 10108.9 | 0.35
2019-10-0311 | 51.86 | 42.87415 | 9.3230.09 | 10197.6 | 0.3
2019-10-0413 | 55.45 | 41.06715 | 9.3230.03 | 10171.8 | 0.07
2019-10-0514 | 57.22 | 35.65311 | 6.8430.39 | 10290.0 | 0.0
2019-10-0616 | 60.89 | 48.27214 | 8.730.33 | 10270.0 | 0.0
2019-10-0722 | 71.615 | 59.07420 | 12.4330.15 | 10214.6 | 0.18
2019-10-0817 | 62.611 | 51.87011 | 6.8430.24 | 10246.1 | 0.24
2019-10-0914 | 57.29 | 48.27222 | 13.6730.3 | 10264.7 | 0.19
2019-10-1012 | 53.68 | 46.47626 | 16.1630.24 | 10246.8 | 0.27
2019-10-1111 | 51.89 | 48.28530 | 18.6430.12 | 10204.0 | 0.16
2019-10-1213 | 55.410 | 50.08516 | 9.9429.94 | 10141.4 | 0.06
2019-10-1316 | 60.810 | 50.0726 | 3.7330.0 | 10160.0 | 0.0
2019-10-1417 | 62.611 | 51.8747 | 4.3529.97 | 10150.1 | 0.0
2019-10-1515 | 59.05 | 41.05610 | 6.2130.09 | 10190.0 | 0.0
2019-10-1614 | 57.28 | 46.47111 | 6.8429.88 | 10124.4 | 0.17
2019-10-1710 | 50.08 | 46.47728 | 17.429.09 | 98546.0 | 1.81
2019-10-1812 | 53.64 | 39.26520 | 12.4329.71 | 10060.0 | 0.0
2019-10-1913 | 55.44 | 39.26311 | 6.8430.0 | 10160.0 | 0.0
2019-10-2013 | 55.46 | 42.8705 | 3.1130.06 | 10180.1 | 0.0
2019-10-2114 | 57.29 | 48.2738 | 4.9730.09 | 10190.2 | 0.01
2019-10-2214 | 57.210 | 50.08312 | 7.4630.06 | 10180.8 | 0.03
2019-10-2316 | 60.811 | 51.87612 | 7.4629.85 | 10118.7 | 0.34
2019-10-2415 | 59.06 | 42.85912 | 7.4630.24 | 10240.0 | 0.0
2019-10-2515 | 59.08 | 46.4688 | 4.9730.24 | 10240.0 | 0.0
2019-10-2612 | 53.65 | 41.0689 | 5.5930.21 | 10230.1 | 0.0
2019-10-2711 | 51.87 | 44.68114 | 8.730.03 | 101735.6 | 1.4
2019-10-2811 | 51.89 | 48.28415 | 9.3230.15 | 10210.4 | 0.02
2019-10-2913 | 55.49 | 48.2829 | 5.5930.33 | 10270.0 | 0.0
2019-10-3015 | 59.013 | 55.4917 | 4.3530.27 | 10250.8 | 0.03
2019-10-3118 | 64.417 | 62.69221 | 13.0529.91 | 10137.5 | 0.3

Dedham 3 Year Historical Weather Data

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