Mountain Brook (AL) monthly weather averages

Average daytime temperature

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

Mountain Brook average temperature chart (Celsius) Mountain Brook average temperature chart (Fahrenheit)
Average monthly temperatures in Mountain Brook (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 10.5 13.3 18.4 23.2 26.8 30.3 31.8 31.5 28.5 23.3 17.7 12.8
°F 50.8 55.9 65.1 73.8 80.2 86.6 89.3 88.6 83.2 73.9 63.9 55

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.

Mountain Brook monthly rainfall chart (mm) Mountain Brook monthly rainfall chart (inches)
Average monthly rainfall in Mountain Brook (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 128 121 153 120 116 97 131 97 103 71 105 127
inches 5 4.7 6 4.7 4.6 3.8 5.2 3.8 4.1 2.8 4.1 5
Rainy days 11 10 11 9 10 9 12 9 8 6 9 10

Average annual rainfall in Mountain Brook: 1313.433mm (517.1 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Mountain Brook

Mountain Brook average daily sunshine chart
Average daily sunshine Mountain Brook
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.2 6 7.3 8.6 9.4 9.7 8.9 8.8 7.9 8 6 5.3

Day / night temperatures

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

Mountain Brook average minimum / maximum temperatures (Celsius) Mountain Brook average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Mountain Brook (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -0.9 0.8 5.1 9.1 13.7 17.8 20.1 19.7 16.3 9.2 4.6 1
Max °C 10.8 13.6 18.7 23.6 27.1 30.7 32.1 31.8 28.8 23.6 18.1 13.1
Min °F 30.3 33.4 41.2 48.3 56.7 64 68.2 67.4 61.3 48.6 40.2 33.7
Max °F 40.8 45 53.4 61.3 68.7 75.6 79 78.3 72.5 61.5 52.3 44.6

Sea temperature

The graph below shows the average sea temperature.

Mountain Brook average sea temperature chart (Celsius) Mountain Brook average sea temperature chart (Fahrenheit)
Average sea temperature around Mountain Brook in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 14.7 13.9 14.5 16.4 19.9 23.9 26.8 27.5 26.1 22.5 19 16.4
°F 58.4 57.1 58 61.6 67.7 75.1 80.2 81.5 79.1 72.6 66.2 61.6

Wind speed

The graph below shows the average wind speed.

Mountain Brook average winspeed by month (km/h) Mountain Brook average winspeed by month (mph)
Average wind speed in Mountain Brook (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 13 14 15 14 11 10 10 9 10 10 12 13
mph 8 9 9 9 7 6 6 6 7 7 7 8

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.

Mountain Brook relative humidity averages
Average relative humidity in Mountain Brook
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
71% 67% 64% 65% 70% 72% 74% 75% 74% 72% 71% 71%

Other monthly averages

UV index Best time to go?

Mountain Brook weather stats

Mountain Brook weather statistics
Hottest month: July 31.8°C 89.2°F
Driest month: October 71mm 2.8ins
Sunniest month: October 8hrs
Coldest month: January 10.5°C 50.9°F
Wettest month: March 153mm 6ins
Warmest sea: August 27.5°C 81.5°F
Map showing location of Mountain Brook (33.50094, -86.75221) Mountain Brook map pin © Google

Locations nearby

Top United States locations