How Rare is September Snow in the Lower Elevations?

September Snow Tidbits
  Casper
(1939-2012)
Lander
(1911-2012)
Riverton
(1918-2012)
Earliest September Snow Sept. 8, 1962
0.2 inches
Sept. 7, 1941
0.3 inches
(note: Sept. 1929
data was missing)
Sept. 6, 1929
3.0 inches
Last Time Measurable Snow fell in Sept. Sept. 30, 2009 Sept. 30, 2009 Sept. 22, 2000
% of Time the First Measurable Snow occurs in Sept. 35% 35% 15%
Snowiest September
1982 with
11.5 inches
 1965 with
14.4 inches
1982 with
13.0 inches

Last time measurable snow occurred at the following locations:

  • Basin:  Sept. 22, 2000
  • Buffalo:  Sept. 20, 1995
  • Cody:  Sept. 22, 2000
  • Moose:  Sept. 22, 2006
  • Pinedale:  Sept. 24, 2007
  • Thermopolis: Sept. 22, 2000


Return to Latest News

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.