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Table  33 (Cli., Wind )
Average Monthly Wind Speed at Hanbanthota  ( m / h ) ,  
Cli33e
Month 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998
January 25.6 24.3 21.6 25.5 27.5 24.3 20.2 21.1 23.7 24.0 24.5
February 17.2 22.3 20.6 21.3 19.5 21.0 18.2 20.4 23.4 20.7 21.3
March 16.3 14.6 13.9 16.4 18.2 16.1 18.6 18.1 19.7 17.1 18.7
April 11.3 16.3 17.0 15.0 15.7 12.6 16.4 11.3 15.2 12.3 15.9
May 25.7 24.2 20.9 19.4 20.3 20.2 24.1 22.4 27.1 18.9 19.2
June 25.8 25.8 25.0 25.6 24.8 24.2 23.9 23.1 22.2 22.5 21.7
July 24.3 22.5 23.2 24.1 25.5 23.7 22.7 21.7 22.6 24.0 20.1
August 23.0 28.2 24.9 22.8 27.5 26.8 24.7 24.8 23.4 24.7 23.7
September 21.7 22.7 27.1 24.3 25.6 26.0 22.2 25.9 24.2 21.1 22.0
October 20.0 19.9 16.4 18.3 19.8 16.7 13.3 17.3 18.5 12.4 21.1
November - 14.7 16.2 16.5 16.7 13.5 15.1 12.6 14.4 10.5 14.9
December - 25.6 21.2 18.1 23.3 16.4 23.6 23.5 15.1 17.6 12.9
© 2004, KRI (Kusaka Research Institute) 
Source: 
Statistical Compendium on Natural Resources Management Sri Lanka 2000,  
Ministry of Forestry & Environment 
Revised:  2003(y)/12(m)/01(d)
Chief Editor:
Dr. Milton Rajaratne (B.Com., M.Sc., Ph.D.)
     The former Head, Department of Management Studies
     University of Peradeniya, Sri Lanka