Southglenn (CO) monthly weather averages

Average daytime temperature

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

Southglenn average temperature chart (Celsius) Southglenn average temperature chart (Fahrenheit)
Average monthly temperatures in Southglenn (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.1 7.9 10.7 15.7 20.8 26.5 30 28.8 23.9 18.5 11.1 6.7
°F 42.9 46.2 51.2 60.3 69.4 79.8 86.1 83.8 75.1 65.4 52 44

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.

Southglenn monthly rainfall chart (mm) Southglenn monthly rainfall chart (inches)
Average monthly rainfall in Southglenn (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 12 18 34 41 69 42 59 48 31 24 22 15
inches 0.5 0.7 1.3 1.6 2.7 1.7 2.3 1.9 1.2 0.9 0.9 0.6
Rainy days 6 6 9 8 10 9 10 10 7 5 5 6

Average annual rainfall in Southglenn: 348.666mm (137.3 inches)

Average daily sunshine

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

Southglenn average daily sunshine chart
Average daily sunshine Southglenn
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 7.7 8.2 8.9 10 10.2 11.3 11.3 10.6 9.8 8.8 7.2 7.1

Day / night temperatures

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

Southglenn average minimum / maximum temperatures (Celsius) Southglenn average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Southglenn (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -9.5 -7.5 -4.7 0.1 5.1 9.9 13.2 12.2 7.3 1.3 -4.5 -8.5
Max °C 6.5 8.3 11.1 16.1 21.2 27 30.5 29.2 24.4 19 11.5 7.1
Min °F 15 18.6 23.6 32.2 41.1 49.7 55.7 54 45.1 34.3 23.9 16.8
Max °F 29.3 32.7 37.8 46.6 55.6 65.1 71.2 69.3 60.4 50.2 38.3 30.7

Sea temperature

The graph below shows the average sea temperature.

Southglenn average sea temperature chart (Celsius) Southglenn average sea temperature chart (Fahrenheit)
Average sea temperature around Southglenn in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 11 10.7 11.1 11.8 13.3 15.2 17.3 19.1 18.3 16 13.6 11.9
°F 51.7 51.3 51.9 53.3 55.9 59.3 63.2 66.4 65 60.7 56.6 53.4

Wind speed

The graph below shows the average wind speed.

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

Southglenn relative humidity averages
Average relative humidity in Southglenn
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
54% 55% 53% 49% 51% 48% 48% 50% 50% 48% 55% 56%

Other monthly averages

UV index Best time to go?

Southglenn weather stats

Southglenn weather statistics
Hottest month: July 30°C 86°F
Driest month: January 12mm 0.5ins
Sunniest month: September 9.8hrs
Coldest month: January 6.1°C 43°F
Wettest month: May 69mm 2.7ins
Warmest sea: August 19.1°C 66.4°F
Map showing location of Southglenn (39.58721, -104.95276) Southglenn map pin © Google

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