KANSAS ACADEMY OF SCIENCE. 83 



per cent.; the cloudiest month was December, mean 61.61 per cent. The 

 percentage of cloudiness at 7 A. m. was 50.41; at 2 p. m., 49.82; at 9 p. m., 

 35.99. 



DIRECTION OF THE WIND. 



During the year, three observations daily, the wind was from the S. W. 

 272 times, N. W. 269 times, S. E. 155 times, S. 128 times, N. E. 102 times, 

 N. 72 times, E. 71 times, W. 26 times. The south winds (including south- 

 west, south and southeast) outnumbered the north (including northwest, 

 north and northeast) in the ratio of 555 to 443. 



VELOCITY OF THE WIND. 



The number of miles traveled by the wind during the year was 137,736, 

 which is 687 miles below the annual average for the 9 preceding years. This 

 gives a mean daily velocity of 377 miles, and a mean hourly velocity of 15.71 

 miles. The highest hourly velocity was 60 miles, on March 21st; the highest 

 daily velocity was 919 miles, on January 16th; the highest monthly velocity 

 was 16,608 miles, in March. The three windiest months were March, April 

 and May; the three calmest months were July, August, and September. 

 The average velocity at 7 a. m. was 14.51 miles; at 2 p. m., 17.73 miles; at 

 9 p. M. , 15.49 miles. 



BAROMETER. 



Mean height of barometer column, 29.113 inches, which is with one ex- 

 ception (1874, 29.121 inches) the highest annual mean on our record. Mean 

 at 7 A. M., 29.141 inches; at 2 p. m., 29.085 inches; at 9 p. m., 29.114 inches; 

 maximum, 29.985 inches, on December 17th, which is more than two-tenths of 

 an inch higher than any previous maximum ; minimum, 28.349 inches, on 

 March 26th; yearly range, 1.636 inches. The highest monthly mean was 

 29.200 inches, in January; the lowest was 28.992 inches, in June. The bar- 

 ometer observations are corrected for temperature and instrumental error. 



RELATIVE HUMIDITY. 



The average atmospheric humidity for the year was 68.63; at 7 a. m., 

 79.65; at 2 p. m., 50.95; at 9 p. m., 75.31. The dampest month was Decem- 

 ber, with mean humidity 76.70; the driest month was September, mean 

 humidity, 59,20. There were fourteen fogs during the year. The lowest 

 humidity for any single observation was 7 per cent., on September 12th. 

 This extreme dryness of the air existed during the continuance of the with- 

 ering "simoon" of that date. 



The following tables give the mean temperature, the extremesjof temper- 

 ature, the velocity of the wind, the percentage of cloudiness, the relative hu- 

 midity, the rainfall (including melted snow), and the depth of snow, for each 

 month of the year 1882, and a comparison with each of the fourteen preced- 

 ing years: 



