New York Weather Bureau. 311 



The average numiber of days on which the precipitation 

 amounted to 0.01 inches or more was 13.6; the number being 

 greatest near the Great Lakes and the Northern Plateau, and 

 least in the southeast. The average number of clear days was 

 4.4; of partly cloudy days, 7.5, and of cloudy days, 19.1, giving an 

 average cloudiness of 70 per cent, for the State. The cloudiness, 

 like the rain frequency, was at a maximum in western and 

 northern New York, the minimum occurring in the southeast. 



The prevailing winds were from the southwest. The average 

 total wind travel at 6 stations of the National Bureau was 9,039 

 miles, which is in excess of the usual mileage for the month. 

 The maximum velocity recorded at the above stations was 60 

 miles per hour at Buffalo on the 5th. 



No thunderstorms were reported during the month. 



Auroras were reported from 1 station on the 19th and from 2 

 stations on the 21st. 



Hail fell on the 13th, 17th and 20th, and sleet on the 4th, 6th, 

 7th, 14th, 17th, 20th, 26th and 30th. 



Lunar halos were observed on the 2d, 5th, 6th, 8th, 10th, 13th. 



General Features of the Weather. 

 The temperature for December averaged considerably higher 

 than usual in southern New York, but nearly normal in the 

 northern section. About normal conditions obtained during the 

 first week, the succeeding ten days being unseasonably warm. 

 Cold weather followed, until the 30th, the general minima occur- 

 ring on the 19th, 24th and 28th, when temperatures fell below 

 zero in the northern and highland sections. The precipitation 

 was well distributed thi'ough the month, a considerable excess 

 over the usual values obtaining in the State at large. About 

 the usual snowfall occurred, but was quickly melted by the warm 



