SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. Ill 



PREDICTION OF APPROXIMATE DATES FOR MINIMUM 

 TEMPERATURES IN WASHINGTON, D. C, FOR THE 

 YEAR 1949 



Following the method described in this paper, I give the follow- 

 ing dates expected to be close to dates of minimum temperatures in 

 Washington in the year 1949. 



The departures of temperature from the normal, as published by 

 the U. S. Weather Bureau, Form 1030, may be taken for these dates, 

 and also for the warmest days that occur between them. Then the 

 average excess of these warmer temperatures over the mean of the 

 temperatures of two cool dates preceding and following each warm 

 one will be found about 6?9 F. for the 55 cases of the year 1949. 



