Figure 2: Monthly Trend in Weather-Related Cancellations: January 2004 - December 2009

Figure 2: Monthly Trend in Weather-Related Cancellations: January 2004 - December 2009

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Month Percent of scheduled flights Percent of total cancels
Jan 1.4 50.31
Feb 1.23 48.61
March 0.81 41.86
April 0.35 25.33
May 0.26 23.13
June 0.45 24.91
July 0.41 23.10
Aug 0.44 26.79
Sept 0.74 42.96
Oct 0.35 27.91
Nov 0.28 25.92
Dec 1.53 53.02

SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, Airline On-Time Performance Database, February 2010