Darien (CT) monthly weather averages

Average daytime temperature

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

Darien average temperature chart (Celsius) Darien average temperature chart (Fahrenheit)
Average monthly temperatures in Darien (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 2.4 3.9 9 15.2 21 25.7 28.4 27.5 23.5 17.7 11.5 4.9
°F 36.3 39 48.3 59.4 69.8 78.3 83 81.4 74.3 63.9 52.6 40.9

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.

Darien monthly rainfall chart (mm) Darien monthly rainfall chart (inches)
Average monthly rainfall in Darien (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 97 87 110 115 120 96 99 106 101 101 117 109
inches 3.8 3.4 4.3 4.5 4.7 3.8 3.9 4.2 4 4 4.6 4.3
Rainy days 11 10 11 10 11 10 9 9 8 7 11 11

Average annual rainfall in Darien: 1227.466mm (483.3 inches)

Average daily sunshine

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

Darien average daily sunshine chart
Average daily sunshine Darien
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 6 6.7 7.7 8.4 9 9.5 9.5 9.1 7.9 7.3 5.4 5

Day / night temperatures

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

Darien average minimum / maximum temperatures (Celsius) Darien average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Darien (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -7.7 -6.6 -1.9 2.9 8.1 13.2 16.4 15.9 11.8 5.6 1.3 -4.4
Max °C 2.7 4.2 9.3 15.6 21.3 26 28.7 27.8 23.8 18 11.7 5.2
Min °F 18.2 20.2 28.6 37.1 46.6 55.8 61.4 60.5 53.2 42.1 34.3 24.2
Max °F 27.5 29.8 38.7 48.6 58.5 67.3 72.5 71.2 64 53.2 43.7 32.7

Sea temperature

The graph below shows the average sea temperature.

Darien average sea temperature chart (Celsius) Darien average sea temperature chart (Fahrenheit)
Average sea temperature around Darien 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.

Darien average winspeed by month (km/h) Darien average winspeed by month (mph)
Average wind speed in Darien (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 21 21 21 20 18 17 16 16 17 17 19 20
mph 13 13 13 13 11 10 10 10 10 11 12 12

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.

Darien relative humidity averages
Average relative humidity in Darien
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
66% 65% 64% 62% 68% 71% 71% 72% 73% 69% 69% 68%

Other monthly averages

UV index Best time to go?

Darien weather stats

Darien weather statistics
Hottest month: July 28.4°C 83.1°F
Driest month: February 87mm 3.4ins
Sunniest month: August 9.1hrs
Coldest month: January 2.4°C 36.3°F
Wettest month: May 120mm 4.7ins
Warmest sea: August 22.1°C 71.8°F
Map showing location of Darien (41.07871, -73.46929) Darien map pin © Google

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