no. 5 



LONG-RANGE TEMPERATURE FORECAST — ABBOT 



Fig. 5. — Normal temperatures, sunspots few minus sunspots many. 



In table 1 I compare an analysis for 14 stations over the interval 

 I 95 0_ 58 with an analysis for the same stations for the interval 1959-60. 

 The mean results for the two intervals are almost identical. They show 

 that forecasts three years after the last month (November 1956) used 

 in their basis are just as good as earlier forecasts. Further support 

 for this thesis will be found by inspection of figure 4. 



These results show about as good agreement of forecasts with ob- 

 served precipitation for extreme departures as for usual departures. 



