Annandale (VA) monthly weather averages

Average daytime temperature

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

Annandale average temperature chart (Celsius) Annandale average temperature chart (Fahrenheit)
Average monthly temperatures in Annandale (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 5.2 7 12.8 18.5 23.7 28.3 30.3 29.5 25.9 19.9 13.9 7.6
°F 41.4 44.5 55 65.2 74.6 83 86.6 85.1 78.7 67.8 57 45.7

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.

Annandale monthly rainfall chart (mm) Annandale monthly rainfall chart (inches)
Average monthly rainfall in Annandale (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 68 71 87 77 87 81 92 101 85 73 82 85
inches 2.7 2.8 3.4 3 3.4 3.2 3.6 4 3.3 2.9 3.2 3.3
Rainy days 10 9 10 10 11 10 10 10 8 7 9 9

Average annual rainfall in Annandale: 950mm (374 inches)

Average daily sunshine

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

Annandale average daily sunshine chart
Average daily sunshine Annandale
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.2 6 7.2 8.2 9 10.1 9.7 9.1 8 7.1 5.6 4.9

Day / night temperatures

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

Annandale average minimum / maximum temperatures (Celsius) Annandale average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Annandale (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -4.3 -3 1.8 6.5 12.1 17.2 19.8 19.1 15 8.2 3.3 -1.7
Max °C 5.5 7.2 13.1 18.8 24 28.6 30.6 29.8 26.2 20.2 14.2 7.9
Min °F 24.4 26.6 35.2 43.6 53.7 63 67.6 66.3 59 46.8 37.9 29
Max °F 33.1 35.8 45.3 54.7 64.4 73.2 77.4 75.9 69.1 57.6 47.7 37.6

Sea temperature

The graph below shows the average sea temperature.

Annandale average sea temperature chart (Celsius) Annandale average sea temperature chart (Fahrenheit)
Average sea temperature around Annandale in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 4.2 2.6 3.3 6.7 11.8 18.2 23.2 24.2 22.1 17.3 12.2 7.7
°F 39.6 36.6 38 44.1 53.3 64.8 73.7 75.6 71.7 63.2 54 45.8

Wind speed

The graph below shows the average wind speed.

Annandale average winspeed by month (km/h) Annandale average winspeed by month (mph)
Average wind speed in Annandale (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 16 16 17 16 14 13 12 12 12 13 14 15
mph 10 10 11 10 9 8 8 7 8 8 9 9

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.

Annandale relative humidity averages
Average relative humidity in Annandale
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
65% 64% 62% 60% 68% 69% 71% 73% 73% 70% 68% 67%