New York Weather Bureau. 271 



The average number of days on which the precipitation 

 amounted to 0.01 inches or more was 10.8; the rain frequency 

 being greatest, on the average, near the Great Lalies and over 

 the northern plateau, and least near the Atlantic coast. The 

 average number of clear days was 5.9; of partly cloudy days, 9.5; 

 and of cloudy days, 14.6; giving an average cloudiness of 62 per 

 cent. The maximum cloudiness obtained over the Northern 

 Plateau and the Great Lake Region, and the minimum in the 

 eastern part of the State. 



The prevailing wind direction was from the southwest. The 

 average total wind travel at 5 stations of the National Bureau 

 was 9,173 miles, the totals being in excess of the usual values for 

 the month. The maximum velocity reported from the above 

 stations was 72 miles per hour at Buffalo on the 6th. 



Thunderstorms or distant lightning were reported from 6 sta- 

 tions of eastern New York on the 5th; from 3 stations of southern- 

 central New York on the 6th; at Number Four on the 17th; at 

 North Hammond on the 17th; at Mount Morris on the 29th. 



Hail fell on the 13th, 21st, 28th and 29th; and sleet fell on the 

 21st, 25th, 28th, 29th. 



A solar halo was observed on the 20th, and a lunar halo on 

 the 9th. 



General features of the weather. — This month ranks among the 

 warmest Novembers on record in this State, the mean tempera- 

 tures exceeding any previously obtained at one-half of the sta- 

 tions possessing long records, among them being Gooperstown, 

 whose observations extend over 44 years. The fluctuations of 

 temperature w^ere notably large and frequent, especially during 

 the latter half of the month. The values were from 3 to 10 

 degrees below the normal during four brief periods, central about 

 the 10th, 14th, 20th and 30th. Between these dates warm waves 

 were felt, the most marked occurring on the 17th and 27th, with 

 excesses of 20 and 25 degrees respectively. It is also of interest 

 to note that the mean temperature for the State on the 27th 

 reached the highest value which occurred during October 

 preceding. 



