73°F
Thornton, Colorado, USA
UpdatedMon, 18-Oct-2021 5:10pm MDT 
 

Navigation

ThorntonWeather.com on Twitter

ThorntonWeather.com on Facebook

 

Weather Geek Stuff - weathergeekstuff.com

Rocky Mountain Weather Network

Tony's Takes Photography



Ready for snow and freezing temperatures? They can come at any time now

Friday, September 24th, 2010 4:57pm MDT

Are you ready? As September comes to a close and with fall's arrival cold and snow aren't far behind usually.

Wednesday marked the first day of fall and while the forecast may not call for freezing temperatures or snow, it won’t be long before the Mile High City is faced with those conditions.  We have in fact already passed the earliest dates Denver has seen freezes and snow so they can arrive at any time. 

Denver has in fact seen snow as early as September 3rd and its first seasonal freeze as early as September 8th.  Those are the extremes however.  On average the first snowfall occurs on October 19th and the first freeze on October 7th.

How will we fare this year?  La Niña conditions are strengthening and the outlook is for warmer than normal temperatures for the next few months.  Colorado weather however doesn’t always follow an established pattern. 

Below is a look at Colorado’s cold season statistics as provided by the National Weather Service.  They provide a bit of historical perspective as to what we might expect this year.

  • The statistics below and many more are kept in our Climatology section. Check it out

Autumn First Freeze Information

Earliest Date of First Freeze: September 8, 1962
Latest Date of First Freeze: November 15, 1944
Average Date of First Freeze: October 7th
 
First Freeze Last 11 Years:
October 2, 2009
October 13, 2008
October 8, 2007
September 18, 2006
October 5, 2005
October 14, 2004
September 14, 2003
October 4, 2002
October 5, 2001
September 20, 2000
September 28, 1999
 
October 21st is the average date in which Denver’s normal overnight low temperature hits 32 degrees Fahrenheit for the first time.
 
Autumn First Snow Information
 
Earliest Date of First Snow: September 3, 1961
Latest Date of First Snow: November 21, 1934
Average Date of First Snow: October 19th
 
First Measurable Snow Last 11 Years:
October 21, 2009
November 14, 2008
October 22, 2007
October 18, 2006
October 10, 2005
November 1, 2004
November 5, 2003
October 25, 2002
October 5, 2001
September 23, 2000
September 28, 1999
 
Seasonal Snowfall Amounts

Greatest Seasonal Snowfall: 118.7 inches 1908-09
Least Seasonal Snowfall: 20.8 inches 1888-89
Average Seasonal Snowfall (1971-2000): 61.7 inches
 
Seasonal Snowfall Last 11 Years:
60.6 inches 2009-2010
38.1 inches 2008-2009
46.3 inches 2007-2008
72.6 inches 2006-2007
30.4 inches 2005-2006
39.3 inches 2004-2005
38.0 inches 2003-2004
61.8 inches 2002-2003
30.2 inches 2001-2002
58.3 inches 2000-2001
45.6 inches 1999-2000
 
Denver’s Snowstorm Total Snowfall Statistics
 
Greatest Snowfall From One Storm: 45.7 inches December 1-6, 1913 (recorded between December 4-5th 1913)
 
The Top 13 Denver Snowstorms since 1946:
31.8 inches Mar 18, 2003
30.4 inches Nov 3, 1946
23.8 inches Dec 24, 1982
21.9 inches Oct 25, 1997
21.5 inches Nov 27, 1983
21.2 inches Nov 19, 1991
20.7 inches Dec 20, 2006
18.7 inches Mar 5, 1983
17.7 inches Nov 19, 1979
17.3 inches Apr 1, 1957
16.9 inches Mar 20, 1952
16.0 inches Oct 3, 1969
15.8 inches Apr 26, 1972

Tags: ,

Leave a Comment

*