Littleton (CO) monthly weather averages

Average daytime temperature

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

Littleton average temperature chart (Celsius) Littleton average temperature chart (Fahrenheit)
Average monthly temperatures in Littleton (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.5 8.3 10.9 15.9 20.9 26.6 30.1 28.7 24.1 18.8 11.3 7.1
°F 43.6 47 51.6 60.5 69.6 79.8 86.2 83.7 75.4 65.8 52.4 44.7

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.

Littleton monthly rainfall chart (mm) Littleton monthly rainfall chart (inches)
Average monthly rainfall in Littleton (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 13 18 34 43 67 42 56 47 32 26 23 16
inches 0.5 0.7 1.3 1.7 2.6 1.7 2.2 1.8 1.2 1 0.9 0.6
Rainy days 5 6 9 8 10 8 9 10 7 5 5 6

Average annual rainfall in Littleton: 349.9mm (137.8 inches)

Average daily sunshine

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

Littleton average daily sunshine chart
Average daily sunshine Littleton
  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 11.2 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.

Littleton average minimum / maximum temperatures (Celsius) Littleton average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Littleton (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -9.5 -7.5 -4.9 -0.3 4.7 9.4 12.7 11.7 6.9 1 -4.7 -8.3
Max °C 6.9 8.7 11.3 16.3 21.3 27 30.6 29.2 24.6 19.2 11.7 7.5
Min °F 15 18.5 23.3 31.6 40.5 48.9 54.8 53 44.3 33.8 23.5 17.2
Max °F 29.7 33.1 37.8 46.4 55.4 64.8 70.9 68.7 60.3 50.2 38.3 31.3

Sea temperature

The graph below shows the average sea temperature.

Littleton average sea temperature chart (Celsius) Littleton average sea temperature chart (Fahrenheit)
Average sea temperature around Littleton in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 11 10.8 11.1 11.8 13.2 15.1 17.2 18.9 18.2 15.9 13.6 11.9
°F 51.8 51.4 52 53.3 55.7 59.1 62.9 66 64.7 60.6 56.5 53.5

Wind speed

The graph below shows the average wind speed.

Littleton average winspeed by month (km/h) Littleton average winspeed by month (mph)
Average wind speed in Littleton (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 15 16 17 18 17 16 15 14 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.

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

Other monthly averages

UV index Best time to go?

Littleton weather stats

Littleton weather statistics
Hottest month: July 30.1°C 86.2°F
Driest month: January 13mm 0.5ins
Sunniest month: September 9.8hrs
Coldest month: January 6.5°C 43.7°F
Wettest month: May 67mm 2.6ins
Warmest sea: August 18.9°C 66°F
Map showing location of Littleton (39.61332, -105.01665) Littleton map pin © Google

Locations nearby

Top United States locations