Rock Hall (MD) monthly weather averages

Average daytime temperature

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

Rock Hall average temperature chart (Celsius) Rock Hall average temperature chart (Fahrenheit)
Average monthly temperatures in Rock Hall (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 4.7 6.5 12.2 17.9 23.5 28.2 30.4 29.6 26.1 19.9 13.9 7.5
°F 40.5 43.6 54 64.2 74.2 82.8 86.8 85.3 78.9 67.8 56.9 45.5

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.

Rock Hall monthly rainfall chart (mm) Rock Hall monthly rainfall chart (inches)
Average monthly rainfall in Rock Hall (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 80 77 98 83 99 95 100 106 91 77 87 92
inches 3.2 3 3.9 3.3 3.9 3.7 3.9 4.2 3.6 3 3.4 3.6
Rainy days 10 9 10 10 11 9 10 10 8 7 9 9

Average annual rainfall in Rock Hall: 1047.933mm (412.6 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Rock Hall

Rock Hall average daily sunshine chart
Average daily sunshine Rock Hall
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.7 6.4 7.5 8.4 9 10 10 9.2 8.1 7.3 6 5.3

Day / night temperatures

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

Rock Hall average minimum / maximum temperatures (Celsius) Rock Hall average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Rock Hall (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -4.2 -2.9 1.8 6.5 12.1 17.1 19.7 18.9 15.1 8.7 3.7 -1.3
Max °C 5 6.7 12.5 18.2 23.8 28.5 30.7 29.9 26.4 20.2 14.1 7.7
Min °F 24.5 26.8 35.2 43.6 53.7 62.8 67.5 66 59.1 47.6 38.7 29.7
Max °F 32.7 35.4 44.8 54.1 64.2 73 77.4 75.9 69.3 57.9 48 37.8

Sea temperature

The graph below shows the average sea temperature.

Rock Hall average sea temperature chart (Celsius) Rock Hall average sea temperature chart (Fahrenheit)
Average sea temperature around Rock Hall in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 1 -0.8 -0.1 3.7 9.4 16.4 21.9 23.4 21.1 16.1 10.6 5.2
°F 33.9 30.5 31.9 38.7 48.8 61.4 71.5 74.1 70 61.1 51 41.4

Wind speed

The graph below shows the average wind speed.

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

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.

Rock Hall relative humidity averages
Average relative humidity in Rock Hall
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
65% 63% 61% 60% 67% 69% 70% 72% 72% 71% 68% 67%

Other monthly averages

UV index Best time to go?

Rock Hall weather stats

Rock Hall weather statistics
Hottest month: July 30.4°C 86.7°F
Driest month: October 77mm 3ins
Sunniest month: July 10hrs
Coldest month: January 4.7°C 40.5°F
Wettest month: August 106mm 4.2ins
Warmest sea: August 23.4°C 74.1°F
Map showing location of Rock Hall (39.13817, -76.23495) Rock Hall map pin © Google

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