450 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 105 



SAO GABRIEL DO RIO NEGRO, BRAZIL 



Lat. 0°8' S. Long. 67°5' W. H„ = 85 m. 



PRESSURE AT STATION LEVEL: COR. TO 0° C. (32° F.) AND TO 



GRAV. AT 45° LAT. 



Means of (see Notes on Brazil) 



900 mb. + 



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



1931 

 1932 

 1933 

 1934 

 1935 



1936 

 1937 

 1938 

 1939 

 1940 



100.2 

 99.2 



100.2 

 99.8 



100.4 

 99.5 



100.8 

 100.6 



98.7 

 100.4 

 100.4 

 101.5 



99.5 



100.0 

 100.4 



100.7 

 100.6 



100.7 

 100.6 

 100.3 

 100.4 

 100.0 



100.8 

 99.2 

 99.9 

 99.5 

 99.4 



100.7 

 100.0 

 100.8 

 101.6 

 101.1 



101.0 

 101.1 

 100.7 

 101.8 

 101.4 



101.9 

 102.4 

 102.2 

 101.9 

 102.6 



100.6 

 101.8 

 101.7 

 101.6 

 101.3 



103.5 

 102.3 

 103.4 

 102.4 

 102.8 



102.8 

 103.0 

 103.0 

 102.6 

 102.8 



102.7 

 103.2 

 103.6 

 103.5 

 102.7 



103.5 

 103.6 

 103.5 

 103.5 

 103.6 



105.9 

 102.4 

 103.0 

 103.2 

 102.6 



102.4 

 102.0 

 102.0 

 102.2 

 103.1 



101.6 

 101.2 

 101.2 

 101.4 

 101.0 



101.6 

 101.5 

 101.6 

 102.1 

 101.1 



100.6 

 100.0 

 100.3 

 101.4 

 100.7 



100.8 

 100.4 

 100.6 

 99. G 

 100.7 



Mean 100.1 100.2 100.1 101.0 101.8 102.9 103.3 102.9 101.4 100.5 



99.1 



99.0 



101.2 



99.0 

 99.2 

 99.1 

 98.8 

 99.1 



99.2 



100.0 

 99.4 

 99.5 

 99.8 



100.0 



99.1 

 98.7 

 98.9 

 100.5 

 99.7 



101.3 

 100.9 

 101.1 

 101.4 

 101.2 



101.0 

 100.9 

 •101.1 

 101.1 

 101.1 



99.6 101.1 



TEMPERATURE IN DEGREES C. h, =z L70 m. 



Means of (see Notes on Brazil) 



TOTAL PRECIPITATION IN MILLIMETERS. hr = 1.50 m. 



Mean 269.5 222.0 261.0 247.6 305.7 232.7 227.3 206.9 161.1 165.9 193.9 303.8 2738.2 



* Normal values used for missing months. 



