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Table  12A  (Cli., Rainfall )
Mean Rainfall (Annual)(Catchment Area)(Stations) (1999-2008)
cli12ae (mm)
Station 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008
Catchment Area                 
Canyon 4,000.9 3,578.5 3,395.9 3,290.4 3,173.7 3,834.9 4,076.5 3,491.3 3,728.6 3,244.6
Castlereigh 4,757.9 4,289.5 3,833.2 3,971.3 3,892.2 3,190.1 3,297.2 3,098.0 3,049.4 2,751.8
Kotmale Power station 2,557.5 2,420.7 1,921.2 1,901.1 1,593.4 2,129.1 1,980.2 2,493.8 2,104.0 2,073.5
Laxapana 5,276.5 4,256.2 3,834.5 3,956.7 4,301.5 4,549.1 3,744.6 3,901.3 4,231.4 3,764.9
Maussakele 3,339.0 2,731.2 2,459.7 2,600.8 2,549.3 2,631.6 2,837.7 2,623.2 2,762.4 2,461.4
Norton 4,854.7 4,168.5 3,748.9 4,014.8 4,244.7 4,371.2 4,630.5 3,953.4 4,461.4 3,638.4
Samanala Power Station 4,880.9 3,837.9 3,615.3 3,471.0 3,611.0 4,498.6 4,322.1 4,482.8 4,200.4 4,803.8
Wimalasurendra Power Station 4,577.0 4,084.3      n.a. 3,965.3 4,265.2      n.a. 4,625.0 3,943.4 4,449.8 3,613.1
Selected Stations  
Anuradhapura 1,192.7 1,245.9 1,262.4 1,260.4 1,192.3 1,444.3 798.8 1,324.4 1,380.9 1,485.5
Badulla 1,460.7 1,592.0 1,321.8 1,989.9 1,532.1 1,982.0 1,683.4 2,370.1 1,632.7 1,864.3
Bandarawela 1,431.1 1,354.6 1,528.9 1,602.1 1,498.0 1,590.8 1,515.5 2,080.8 1,638.0 2,103.6
Batticaloa 1,990.3 2,021.4 1,636.3 1,872.8 1,858.5 2,594.7 1,372.9 1,306.3 1,570.2 1,987.3
Colombo 2,888.2 2,012.4 1,932.6 2,099.2 2,030.0 1,958.1 2,814.0 2,722.9 2,138.8 2,622.1
Galle 2,964.1 2,516.0 1,771.6 1,536.7 1,894.3 2,252.3 1,879.7 2,552.9 3,091.2 2,776.8
Hambantota 913.4 1,146.2 730.3 882.1 1,272.7 1,164.7 977.9 1,333.5 1,017.8 1,139.8
Jaffna       n.a.       n.a.       n.a. 1,413.5 1,328.4 1,868.9 1,235.3 1,591.0 1,168.3 1,811.8
Katugastota 1,898.1 1,669.8 1,922.0 1,926.7 1,502.2 1,565.3 1,783.6 2,120.7 1,827.6 1,848.6
Katunayake 3,223.7 2,162.3 1,539.8 2,008.6 1,790.9 1,672.0 2,396.0 2,594.8 1,659.9 2,516.1
Kurunegala 1,755.1 1,584.1 1,599.0 2,046.0 1,228.2 1,998.3 2,006.0 2,316.1 1,618.4 2,404.8
Maha Illuppallama 1,458.7 1,461.0 1,441.5 1,801.9 1,137.2 1,383.9 1,134.4 1,529.0 1,494.2 1,545.7
Mannar 735.9 870.3 1,164.6 923.4 1,130.5 1,152.8 1,190.8 938.8 642.8 1,219.2
Nuwara Eliya 1,893.6 1,824.3 2,665.6 1,517.4 1,373.8 1,741.1 1,347.1 2,555.3 1,674.7 1,587.0
Pottuvil 1,396.9 1,769.9 1,216.8 1,691.8 1,918.9 1,300.3 1,430.5 1,607.2 1,368.5 1,727.5
Puttalam 965.5 947.8 945.3 1,584.9 1,280.0 1,219.9 990.0 1,520.8 918.3 1,341.7
Ratmalana 3,103.6 2,705.0 2,087.6 2,302.2 2,247.1 2,108.1 3,207.1 3,082.3 2,084.4 2,967.2
Ratnapura 4,381.0 3,629.4 3,418.1 3,202.3 4,021.2 3,741.6 3,404.8 3,735.6 3,104.5 3,883.5
Trincomalee 1,840.0 1,409.9 1,431.4 1,724.5 1,424.8 1,926.1 1,791.6 1,776.0 1,483.2 1,844.5
Vavuniya 1,438.8 1,717.4 1,352.2 1,196.9 1,370.7 1,411.2 1,167.2 1,028.2 1,504.3 1,224.3
© 2009, KRI (Kusaka Research Institute)  Revised:  2009(y)/10(m)/01(d)
Source:  Chief Editor:
Central Bank of Sri Lanka       Dr. Milton Rajaratne (B.Com., M.Sc., Ph.D.)
Remark:       The former Head, Department of Management Studies
n.a. - Not available       University of Peradeniya, Sri Lanka