Watertown, Massachusetts, United States Climate

Weather: 20.41°C/68.74°F, Wind SW at 6.17 km/h, 57% Humidity, 0% Chance of rain

United States
(Photo by Andrea Davis on Unsplash)
Contents

Watertown Climate Summary

Located at an elevation of None meters (0 feet) above sea level, Watertown has a Humid continental, no dry season, hot summer climate (Classification: Dfa). The district’s yearly temperature is 12.53ºC (54.55ºF) and it is -0.11% lower than United States’s averages. Watertown typically receives about 16.37 millimeters (0.64 inches) of precipitation and has 33.73 rainy days (9.24% of the time) annually.

CountryUnited States
CityMassachusetts
Longitude-71.1828321
Latitude42.3709299
Attitude/ElevationNonem (0ft)
Local timeMonday 16:41
Annual high temperature15.42ºC (59.76ºF)
Annual low temperature7.51ºC (45.52ºF)
Average annual precip.16.37mm (0.64in)
Warmest monthJuly (30.47ºC / 86.85ºF)
Coldest MonthJanuary (-4.32ºC / 24.22ºF)
Wettest MonthDecember (21.56mm / 0.85in)
Driest MonthSeptember (9.95mm / 0.39in)
Number of days with rainfall (≥ 1.0 mm)33.73 days (9.24%)
Days with no rain331.27 days (90.76%)
Humidity68.04%

Climate Watertown: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)18.0(64.4)21.0(69.8)19.0(66.2)23.0(73.4)33.0(91.4)35.0(95.0)40.0(104.0)37.0(98.6)35.0(95.0)29.0(84.2)23.0(73.4)17.0(62.6)40.0(104.0)
Average high °C (°F)2.22(36.0)4.54(40.17)6.82(44.28)12.13(53.83)20.03(68.05)25.73(78.31)30.47(86.85)28.77(83.79)24.12(75.42)16.53(61.75)9.28(48.7)4.37(39.87)15.42(59.76)
Daily mean °C (°F)-0.25(31.55)1.94(35.49)4.17(39.51)9.3(48.74)16.82(62.28)22.46(72.43)27.08(80.74)25.47(77.85)20.81(69.46)13.75(56.75)6.66(43.99)2.09(35.76)12.53(54.55)
Average low °C (°F)-4.32(24.22)-2.2(28.04)-0.28(31.5)4.23(39.61)10.52(50.94)15.9(60.62)20.57(69.03)19.75(67.55)15.72(60.3)9.34(48.81)2.57(36.63)-1.68(28.98)7.51(45.52)
Record low °C (°F)-20.0(-4.0)-18.0(-0.4)-13.0(8.6)-2.0(28.4)2.0(35.6)9.0(48.2)17.0(62.6)12.0(53.6)8.0(46.4)-4.0(24.8)-11.0(12.2)-12.0(10.4)-20.0(-4.0)
Average precipitation mm (inches)14.69(0.58)14.7(0.58)16.95(0.67)18.65(0.73)12.05(0.47)14.45(0.57)17.33(0.68)19.85(0.78)9.95(0.39)18.22(0.72)18.03(0.71)21.56(0.85)16.37(0.64)
Average precipitation days (≥ 1.0 mm)2.183.092.643.093.452.823.553.181.822.732.822.362.81
Average relative humidity (%)67.8668.6669.265.6465.8365.3165.767.1968.1171.1669.5272.2668.04
Mean monthly sunshine hours6.878.618.7610.1312.5313.1413.512.4710.427.956.646.829.82

Climate Graph

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

Watertown

Watertown Temperature by Month

July
27.08°C | 80.74°F
August
25.47°C | 77.85°F
June
22.46°C | 72.43°F
September
20.81°C | 69.46°F
May
16.82°C | 62.28°F
October
13.75°C | 56.75°F
April
9.3°C | 48.74°F
November
6.66°C | 43.99°F
March
4.17°C | 39.51°F
December
2.09°C | 35.76°F
February
1.94°C | 35.49°F
January
-0.25°C | 31.55°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature35.0°C (95.0°F)28.16°C (82.69°F)17.0°C (62.6°F)
Avg Temperature31.0°C (87.8°F)24.9°C (76.82°F)16.0°C (60.8°F)
Min Temperature24.0°C (75.2°F)19.52°C (67.14°F)12.0°C (53.6°F)
Dew PointMaxAverageMin
Dew Point20.0°C (68.0°F)15.87°C (60.57°F)5.0°C (41.0°F)
PrecipitationMaxAverageMinSum
Precipitation16.5mm | 0.65in2.3mm | 0.09in0.0mm | 0in71.2mm | 2.8in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind17.0kmh | 10.56mph10.52kmh | 6.54mph4.0kmh | 2.49mph
Gust Wind26.0kmh | 16.16mph14.65kmh | 9.1mph5.0kmh | 3.11mph
Sea Level PressureMaxAverageMin
Sea Level Pressure16.5mb2.3mb0.0mb
Watertown

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
August° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2020-08-0127 | 80.617 | 62.6638 | 4.9729.88 | 10120.0 | 0.0
2020-08-0227 | 80.619 | 66.26813 | 8.0830.0 | 10160.0 | 0.0
2020-08-0329 | 84.220 | 68.06514 | 8.729.94 | 10140.5 | 0.02
2020-08-0424 | 75.220 | 68.07816 | 9.9429.94 | 10149.3 | 0.37
2020-08-0527 | 80.619 | 66.27017 | 10.5629.91 | 10133.4 | 0.13
2020-08-0627 | 80.614 | 57.2529 | 5.5930.09 | 10190.0 | 0.0
2020-08-0723 | 73.416 | 60.8698 | 4.9730.15 | 10211.6 | 0.06
2020-08-0822 | 71.619 | 66.2887 | 4.3530.12 | 102015.1 | 0.59
2020-08-0927 | 80.618 | 64.4689 | 5.5930.06 | 10180.5 | 0.02
2020-08-1028 | 82.419 | 66.2699 | 5.5929.94 | 10140.7 | 0.03
2020-08-1131 | 87.820 | 68.06313 | 8.0829.94 | 10140.3 | 0.01
2020-08-1229 | 84.220 | 68.06913 | 8.0830.0 | 10160.4 | 0.02
2020-08-1329 | 84.213 | 55.4447 | 4.3530.06 | 10180.0 | 0.0
2020-08-1426 | 78.816 | 60.8579 | 5.5930.06 | 10180.0 | 0.0
2020-08-1521 | 69.816 | 60.87314 | 8.730.06 | 10180.0 | 0.0
2020-08-1621 | 69.817 | 62.67912 | 7.4630.03 | 10171.3 | 0.05
2020-08-1719 | 66.216 | 60.88411 | 6.8429.88 | 10125.2 | 0.2
2020-08-1825 | 77.015 | 59.06510 | 6.2129.83 | 10101.1 | 0.04
2020-08-1923 | 73.410 | 50.05310 | 6.2129.91 | 10130.0 | 0.0
2020-08-2024 | 75.210 | 50.0508 | 4.9730.03 | 10170.0 | 0.0
2020-08-2125 | 77.012 | 53.65412 | 7.4629.97 | 10150.0 | 0.0
2020-08-2228 | 82.417 | 62.6639 | 5.5929.91 | 10130.1 | 0.0
2020-08-2328 | 82.418 | 64.4639 | 5.5929.97 | 10150.0 | 0.0
2020-08-2429 | 84.219 | 66.2687 | 4.3529.94 | 10140.6 | 0.02
2020-08-2528 | 82.419 | 66.26612 | 7.4629.74 | 10070.7 | 0.03
2020-08-2619 | 66.25 | 41.04217 | 10.5629.83 | 10100.0 | 0.0
2020-08-2716 | 60.810 | 50.0737 | 4.3529.8 | 100913.5 | 0.53
2020-08-2824 | 75.217 | 62.6764 | 2.4929.74 | 10070.3 | 0.01
2020-08-2923 | 73.420 | 68.0888 | 4.9729.62 | 100316.5 | 0.65
2020-08-3022 | 71.612 | 53.66116 | 9.9429.62 | 10030.1 | 0.0
2020-08-3121 | 69.89 | 48.2538 | 4.9730.03 | 10170.0 | 0.0

Watertown 3 Year Historical Weather Data

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