2008-2009 Forecast Verification

Data for verification taken from Philadelphia International Airport and Regan International Airport

Total Seasonal Snowfall

Philadelphia/South Jersey - 23.3 inches

Washington, D.C. - 7.5 inches

Monthly Analysis

Washington, D.C. and Surrounding Suburbs

December

• Temperatures: +0.8 degrees above normal
• Total Snowfall: 0.0 inches
• No snow or ice storms; All Rain Events
• Precipitation: 2.97"; -0.08" Average

January

• Temperatures: -3.2 degrees below normal
• Total Snowfall: 1.9 inches
• Snow and Ice storm on the 27th/28th; 1.9" Snow
• Precipitation: 2.68"; -0.53" below normal

February

• Temperatures: +1.7 degrees above normal
• Total Snowfall: 0.1 inches
• Precipitation: 0.35"; -2.28" below average

March

• Temperatures: -1.3 degrees below normal
• Total Snowfall: 5.5 inches
• Snowstorm on the 1st/2nd; 5.5" snow
• Precipitation: 1.97"; -1.63" below average

Philadelphia/South Jersey

December

• Temperatures: +1.3 degrees above normal
• Total Snowfall: 0.4 inches
• Precipitation: 6.84"; +3.5" above normal

January

• Temperatures: -3.3 degrees below normal
• Total Snowfall: 5.5 inches
• Snow and Ice storm on the 27th/28th; 4.9" total snowfall
• Precipitation: 2.00"; -1.50" below normal

February

• Temperatures: +2.3 degrees above normal
• Total Snowfall: 8.4 inches
• Snowstorm on the 3rd; 7.7" total snowfall(this was a freak mesoscale event where Philly and areas within 20 miles saw 5-8” inches; most areas saw 2” or less).
• Precipitation: 0.78"; -1.97" below normal

March

• Temperatures: +0.4 degrees; Normal
• Total Snowfall: 9.0 inches
• Snowstorm on the 1st/2nd; 9.0" total snowfall
• Precipitation: 1.73"; -1.83" below normal

Maps