Germantown (MD) monthly weather averages

Contents

Average daytime temperature

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

Germantown average temperature chart (Celsius) Germantown average temperature chart (Fahrenheit)
Average monthly temperatures in Germantown (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 3.7 5.6 11.7 17.4 23 27.6 30 29.1 25.2 19 12.8 6.5
°F 38.7 42.2 53 63.3 73.5 81.8 85.9 84.4 77.4 66.2 55 43.6

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.

Germantown monthly rainfall chart (mm) Germantown monthly rainfall chart (inches)
Average monthly rainfall in Germantown (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 74 70 89 85 107 97 92 96 93 84 89 85
inches 2.9 2.8 3.5 3.3 4.2 3.8 3.6 3.8 3.6 3.3 3.5 3.3
Rainy days 11 10 11 11 12 10 10 10 8 8 10 10

Average annual rainfall in Germantown: 1020.9mm (401.9 inches)

Average daily sunshine

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

Germantown average daily sunshine chart
Average daily sunshine Germantown
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.2 6 7.1 8 8.8 9.9 9.8 9.1 7.9 7 5.3 4.7

Day / night temperatures

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

Germantown average minimum / maximum temperatures (Celsius) Germantown average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Germantown (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -6 -4.7 0 4.9 10.5 15.3 18 17.2 13.1 6.5 2 -3.1
Max °C 4 5.9 12 17.7 23.4 28 30.3 29.4 25.5 19.3 13.1 6.7
Min °F 21.3 23.5 32.1 40.8 50.8 59.5 64.3 63 55.6 43.7 35.5 26.4
Max °F 30.2 33.1 42.8 52.3 62.4 70.9 75.4 73.9 66.7 55.2 45.5 35.2

Sea temperature

The graph below shows the average sea temperature.

Germantown average sea temperature chart (Celsius) Germantown average sea temperature chart (Fahrenheit)
Average sea temperature around Germantown in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 2.7 1 1.6 5 10.3 17 22.3 23.6 21.4 16.6 11.2 6.3
°F 36.8 33.8 35 41 50.5 62.6 72.2 74.6 70.6 61.8 52.2 43.4

Wind speed

The graph below shows the average wind speed.

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

Germantown relative humidity averages
Average relative humidity in Germantown
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
65% 64% 62% 61% 67% 70% 71% 73% 73% 71% 68% 68%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Germantown weather stats

Germantown weather statistics
Hottest month: July 30°C 86°F
Driest month: February 70mm 2.8ins
Sunniest month: July 9.8hrs
Coldest month: January 3.7°C 38.7°F
Wettest month: May 107mm 4.2ins
Warmest sea: August 23.6°C 74.5°F
Map showing location of Germantown (39.17316, -77.27165) Germantown map pin © Google

Locations nearby

Top United States locations