Weather Almanac for Ellicott, CO

Change the Weather History Date:

Tuesday, December 18, 2012

  Average (KCOS) Record (KCOS)
Mean Temperature 29 °F  
Max Temperature 41 °F 65 °F (2013)
Min Temperature 17 °F -15 °F (1909)
Degree Days  
Heating Degree Days 36  
Month to date heating degree days   630  
Since 1 July heating degree days   2111  
Cooling Degree Days 0  
Month to date cooling degree days   0  
Year to date cooling degree days   455  
Dew Point    
Average Humidity    
Maximum Humidity    
Minimum Humidity    
Precipitation 0.01 in 0.13 in (1934)
Month to date precipitation   0.21  
Year to date precipitation   16.41  
Snow 0.10 in 2.80 in (2005)
Month to date snowfall   3.4  
Since 1 July snowfall   11.2  
Snow Depth    
Wind Speed    
Max Wind Speed    
Max Gust Speed    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Search for Another Location


Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!



Dec. 18, 2012 Rise Set
Actual Time 7:10 AM MST 4:37 PM MST
Civil Twilight 6:40 AM MST 5:07 PM MST
Nautical Twilight 6:07 AM MST 5:41 PM MST
Astronomical Twilight 5:34 AM MST 6:13 PM MST
Moon 10:54 AM MST (12/18) 11:02 PM MST (12/18)
Length of Visible Light 10h 27m
Length of Day
9h 27m
Waxing Crescent, 35% of the Moon is Illuminated
Dec 18
Waxing Crescent
Dec 19
First Quarter
Dec 28
Jan 4
Last Quarter
Jan 11

No daily or hourly history data available