SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL, III 



as NOK 30 Dec. s 



10 /s 20 



NEW YORK 



Fig. 3. — Temperature departures from normal at New York, December 1949. 

 Dotted lines indicate predicted dates for minima. 



line, and then took the sums for each column. The results are shown 

 in table 4. 



Table 4.^Frcquciicy of minima of Washington temperatures with respect to 

 the dates of predicted minima of 1949 



Days from predicted dates —3 —2 — i +1 +2 +3 



Numbers of days of minima 5 11 4 n 9 9 6 



I also took the mean values of the departures of temperature from 

 normal for the 7 columns of the table of 55 lines. These results are 

 given in table 5. 



Table 5. — Average temperature departures at Washington zvith respect to the 

 dates of predicted minima of 1949 



Days from predicted dates —3 — 2 — i o +1 +2 +3 



Average temperature departures... 4?46 5? 16 4?87 5^42 3?96 3?6o 3^87 



It is clear that the prediction for 1949 was less successful than that 

 for 1948, illustrated in figure i. In other words, the displacements 



