264 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 105 



MEDAN, NETHERLANDS EAST INDIES 



Lat. 3°35' N. Long. 98°41' E. H = 25 m.* 



PRESSURE AT SEA LEVEL 



Msans reduced to 24 hours 



1,000 mb. + 



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



1931 

 1932 

 1933 

 1934 

 1936 



1936 

 1937 

 1938 

 1939 

 1940 



10.7 

 11.8 

 10.1 

 9.3 

 11.0 



10.4 

 9.9 

 10.9 

 10.7 

 11.1 



10.6 



10.9 



10.0 



9.7 



9.7 



10.6 

 10.3 

 10.1 

 10.8 

 11.8 



Mean 10.6 11.4 



10.9 



10.0 



9.3 



9.0 



9.2 



9.8 



9.3 



10.4 



9.5 



9.7 

 9.6 

 9.6 



8.8 

 8.4 



8.5 

 8.2 

 8.4 

 9.0 

 10.6 



9.1 



9.1 

 8.7 

 9.0 

 9.2 



8.2 



7.8 

 9.0 

 7.4 



8.6 



9.2 

 8.8 

 9.0 



8.7 

 8.9 



9.2 

 8.2 

 7.7 

 9.1 

 9.2 



9.6 

 8.2 



8.8 

 8.0 

 8.2 



8.5 

 8.1 

 8.0 

 9.0 

 9.8 



8.6 



8.2 

 9.1 

 9.2 

 9.6 

 9.5 



9.1 

 8.3 

 8.4 

 8.5 

 10.0 



9.0 



9.1 

 9.3 

 9.2 



9.5 

 9.3 



9.2 



9.7 



8.8 



10.5 



11.0 



9.6 



10.0 

 9.5 

 9.3 

 9.7 

 9.0 



10.0 

 10.5 

 9.5 

 10.4 

 11.6 



9.9 



10.1 



10.1 



9.0 



9.9 



10.4 



10.3 

 8.9 

 9.5 

 9.6 



10.0 



10.6 

 10.3 



9.3 



9.7 



9.1 



12.1 



11.8 



9.8 10.3 



9.8 

 9.7 

 9.7 

 9.3 

 9.3 



9.4 

 9.1 

 8.9 

 9.8 

 10.6 



9.6 



TEMPERATURE IN DEGREES C. 

 Means of (see Notes) 



Mean 25.3 25.9 26.3 26.5 26.7 26.5 26.4 26.1 25.9 25.7 25.4 25.1 



26.0 



TOTAL PRECIPITATION IN MILLIMETERS, h. = 1.20 m. 



Mean 206 



61 



166 159 



161 



140 173 222 294 



202 



165 2034 



* See Notes, p. 37. 



