352 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



WASHINGTON, UNITED STATES 



Lat. 38° 54' N. Long. 77° 3' W. H b '= 112 ft. 



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



GRAV. AT 45° LAT. 



Means of iCS^^^O 11 ) corrected to means of 24 hours, 75th meridian W. 



29 inches + 



TEMPERATURE IN DEGREES F. 

 Means of \ (daily Max. -f- daily Min.), corrected to 24 hours * 



M'ns 34.6 37.8 45.9 54.5 63.5 72.6 76.7 74.9 69.7 56.8 47.1 37.8 



TOTAL PRECIPITATION IN INCHES 



M'ns 3.22 2.64 3.01 3.52 3.25 3.47 3.77 4.10 4.10 2.47 2.42 

 * Temperatures in vol. 79 were also corrected to 24 hour means after 1872. 



2.43 



