Plymouth (CT) monthly weather averages

Contents

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Plymouth

Plymouth average temperature chart (Celsius) Plymouth average temperature chart (Fahrenheit)
Average monthly temperatures in Plymouth (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -0.2 1 6.5 13.2 19.7 24.3 27 25.8 21.7 15.8 9.1 2.2
°F 31.6 33.9 43.8 55.8 67.4 75.8 80.5 78.5 71 60.5 48.4 35.9

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Plymouth monthly rainfall chart (mm) Plymouth monthly rainfall chart (inches)
Average monthly rainfall in Plymouth (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 88 82 97 106 103 99 97 110 101 96 108 103
inches 3.5 3.2 3.8 4.2 4.1 3.9 3.8 4.3 4 3.8 4.3 4
Rainy days 11 11 12 11 12 12 10 10 9 8 12 13

Average annual rainfall in Plymouth: 1157.167mm (455.6 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Plymouth

Plymouth average daily sunshine chart
Average daily sunshine Plymouth
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.9 6.7 7.4 8.1 8.8 9.4 9.6 8.9 7.8 6.9 5 4.8

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Plymouth average minimum / maximum temperatures (Celsius) Plymouth average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Plymouth (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -10.4 -9.3 -4.2 0.9 6.8 11.8 14.8 13.9 9.7 3.5 -1 -7.2
Max °C 0 1.3 6.8 13.5 20 24.7 27.3 26.1 22 16.2 9.4 2.4
Min °F 13.3 15.3 24.4 33.6 44.2 53.2 58.6 57 49.4 38.2 30.3 19
Max °F 22.6 24.8 34.3 45 56.1 64.8 69.8 68 60.4 49.6 39.6 27.7

Sea temperature

The graph below shows the average sea temperature.

Plymouth average sea temperature chart (Celsius) Plymouth average sea temperature chart (Fahrenheit)
Average sea temperature around Plymouth in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.2 4.3 4.2 6.2 10.5 16.2 21 22.1 20 16.1 12.3 9
°F 43.1 39.7 39.5 43.2 51 61.2 69.9 71.8 68 61.1 54.1 48.2

Wind speed

The graph below shows the average wind speed.

Plymouth average winspeed by month (km/h) Plymouth average winspeed by month (mph)
Average wind speed in Plymouth (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 17 18 18 18 16 15 14 13 14 15 17 17
mph 11 11 11 11 10 9 9 8 9 9 11 11

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Plymouth relative humidity averages
Average relative humidity in Plymouth
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
66% 65% 62% 60% 66% 70% 70% 73% 74% 70% 70% 70%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Plymouth weather stats

Plymouth weather statistics
Hottest month: July 27°C 80.6°F
Driest month: February 82mm 3.2ins
Sunniest month: July 9.6hrs
Coldest month: January -0.2°C 31.6°F
Wettest month: August 110mm 4.3ins
Warmest sea: August 22.1°C 71.8°F
Map showing location of Plymouth (41.67204, -73.05289) Plymouth map pin © Google

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