Xew York Weather Bureau. 247 



tions. The rainfall was the least recorded for October by the 

 Weather Bureau station at Rochester. 



The average number of days on which the precipitation 

 amounted to 0.01 inches or more was 8.9. The rain frequency 

 was, as a rule, greatest in easitem New York, and least in the 

 west. The average number of clear days was 8.4; of partly 

 cloudy days, 9.0; and of cloudy days, 13. G; giving an average 

 cloudiness of 58 per cent. Over the Western Plateau, the Great 

 Lakes, the St. Lawrence Valley and the Atlantic Coast the 

 cloudiness was below the general average. 



The prevailing wind directioTi was from the northwest. The 

 average wind travel at six stations of the National Bureau was 

 8,201 miles; with a maximum velocity of 48 miles per hour at 

 Buffalo on the 20th. 



Light thundersitorms or distant lightning were observed at 5 

 stations of western New York on the 29th, 30th and 31st. 



Killing frosts occurred at some northern and highland stations 

 on the 8th, and were quite general on t'he 9th, also frequently dur- 

 ing the two following weeks. 



Hail fell on the 3d, Ttli, 8th, 18th and 21st; and sleet fell on the 

 21st and 22d. 



A solar halo was O'bserved on the 28th, and a lunar halo on the 

 19th. 



General features of the weather. — The temperature was below 

 the normal continuously from the beginning of October until the 

 27th, the greatest deficiency occurring on the 9th, when killing 

 frosts were generally reported, being the first of the season at 

 many stations. The weather was much warmer after the 27th, 

 and on the closing days of the mont'h the excess of temperature 

 amounted to nearly 1.5 degrees above the normal. 



