WHOLE VOL. 



LAT. 20 N. 



573 



SEA-LEVEL PRESSURE AT 10° INTERSECTIONS 



Lat. 20° N. Long. 30° E. 



950 mb. + 



Date Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec. Year 



61.5 63.9 66.4 



61.6 

 02.2 

 59.8 

 62.0 

 61.3 



65.8 

 63.8 

 59.4 

 63.0 

 63.4 



65.1 

 67.0 

 63.4 

 65.3 

 66.4 



61.4 



61.9 

 61.3 

 60.9 

 60.1 

 61.7 



61.1 65.3 66.2 61.4 



61.2 63.6 66.6 61.6 



60.3 63.8 65.8 60.8 

 62.0 64.9 64.2 61.2 



Mean 



64.2 61.7 59.9 58.9 58.0 57.5 57.4 59.4 61.3 63.7 65.6 



61.3 



Lat. 20° N. Long. 40° E. 

 950 mb. + 



Mean 64.2 62.S 60.7 59.0 57.6 55.5 54.5 54.8 56.7 60.4 62.8 63.9 



59.4 



Lat. 20° N. Long. 50° E. 

 950 mb. + 



Mean 66.8 64.0 62.6 59.9 56.3 52.0 49.7 51.0 64.: 



61.2 64.7 66.2 69.1 



