Windsor monthly weather averages

Average daytime temperature

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

Windsor average temperature chart (Celsius) Windsor average temperature chart (Fahrenheit)
Average monthly temperatures in Windsor (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -6.5 -4.7 1.4 9.3 17.2 22 24.4 22.7 18.1 11.8 4.2 -3.5
°F 20.2 23.5 34.5 48.7 63 71.5 76 72.9 64.7 53.2 39.5 25.8

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.

Windsor monthly rainfall chart (mm) Windsor monthly rainfall chart (inches)
Average monthly rainfall in Windsor (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 81 65 78 80 93 104 112 128 100 92 104 101
inches 3.2 2.5 3.1 3.1 3.7 4.1 4.4 5 3.9 3.6 4.1 4
Rainy days 16 13 13 13 13 13 14 14 12 13 16 17

Average annual rainfall in Windsor: 1109.866mm (437 inches)

Average daily sunshine

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

Windsor average daily sunshine chart
Average daily sunshine Windsor
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 3 4.3 4.8 5.9 7.5 8.4 8.9 7.5 5.9 4.3 2.5 2.3

Day / night temperatures

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

Windsor average minimum / maximum temperatures (Celsius) Windsor average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Windsor (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -16.5 -15 -8.3 -0.8 5.5 10.6 13.3 12.2 7.6 2.4 -3.2 -12.4
Max °C -6.3 -4.5 1.7 9.6 17.5 22.3 24.7 23 18.4 12 4.4 -3.3
Min °F 2.3 5.1 17.2 30.7 41.9 51 55.9 54 45.7 36.3 26.3 9.8
Max °F 11.5 14.5 26.1 39.9 52.7 61.5 66.2 63.7 55.4 45 33.1 18

Sea temperature

The graph below shows the average sea temperature.

Windsor average sea temperature chart (Celsius) Windsor average sea temperature chart (Fahrenheit)
Average sea temperature around Windsor in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 3.8 2.8 2.4 3.3 6.2 10.7 14.9 16.2 14.4 11.1 8.1 5.5
°F 38.9 37 36.3 38 43.2 51.3 58.7 61.2 58 52 46.5 41.9

Wind speed

The graph below shows the average wind speed.

Windsor average winspeed by month (km/h) Windsor average winspeed by month (mph)
Average wind speed in Windsor (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 13 13 13 13 12 10 9 9 10 12 12 12
mph 8 8 8 8 7 7 6 6 6 7 8 7

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.

Windsor relative humidity averages
Average relative humidity in Windsor
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
73% 71% 68% 65% 65% 72% 75% 78% 79% 75% 79% 77%

Other monthly averages

UV index Best time to go?

Windsor weather stats

Windsor weather statistics
Hottest month: July 24.4°C 75.9°F
Driest month: February 65mm 2.6ins
Sunniest month: July 8.9hrs
Coldest month: January -6.5°C 20.3°F
Wettest month: August 128mm 5ins
Warmest sea: August 16.2°C 61.2°F
Map showing location of Windsor (45.56678, -71.99909) Windsor map pin © Google

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