TWENTY-FIRST ANNUAL MEETING. 



119 



outnumbered the north (including northwest, north and northeast) in the ratio of 

 577 to 437. 



VELOCITY or THE WIND. 



The number of miles traveled by the wind during the year was 128,185, which is 

 7,751 miles below the annual average for the preceding 15 years. This gives a mean 

 daily velocity of 350.23 miles, and a mean hourly velocity of 14.59 miles. The high- 

 est velocity (the highest ever recorded at this station) was 96 miles an hour, from 

 2:25 to 2:30 a.m. on August 12th; the highest daily velocity was 930 miles, on the 

 25th of February; the highest monthly velocity was 13,830 miles, in March. The 

 windiest months were January, February, March, and April; the calmest months 

 were July, August, and September. The average velocity at 7 a.m. was 13.35 miles; 

 at 2 P.M., 16 miles; at 9 p. m., 14.58 miles. > 



BABOMETER. 



Mean height of barometer column, 29.132 inches, which is .25 inch above the an- 

 nual average. Mean, at 7 a.m., 29.149 inches; at 2 p.m., 29.114 inches; at 9 p.m., 

 29.131 inches; maximum, 29.983 inches, on January 15th; minimum, 28.495 inches, 

 on March 19th; yearly range, 1.488 inches. The highest monthly mean was 29.334 

 inches, in January; the lowest was 28.958 inches, in May. The barometer observa- 

 tions are corrected for temperature and instrumental error only. 



EELATIVE HUMIDITY. 



The average atmospheric humidity for the year was 72.2; at 7 a.m., 81; at 2 

 P.M., 58.2; at 9 P.M., 77.3. The dampest month was January, with mean humidity 

 85.9; the dryest month was April, mean humidity 61.8. There were 15 fogs during 

 the year. The lowest humidity for any single observation was 18 per cent., on April 

 22d and May 14th. 



The following tables give the mean temperature, the extremes of temperature, 

 the number of inches of rain and snow, the number of rainy days, the number of 

 thunder showers, the mean cloudiness, the relative humidity, the number of fogs, 

 the velocity of the wind, the mean and extreme barometer heights for each month 

 of the year 1888, and a comparison with each of the preceding 20 years: 



YEAR 1888. 



