Military Posts of the United States. 273 



Weather, fair 16.58 and 18.04, cloudy 8.50 and 7.04, rain 

 4.70 and 3.33, snow 0.70 and 2.08. The prevailing winds at 

 the east were N. W., S. W. and S. ; at the West S. W., S. 

 and N. E. The proportion of fair weather was less, and of 

 cloudy weather and rain greater, at the east, the proportion of 

 snow much less. 



" In 1825 the aggregate mean temperature of the year was 

 58.27 ; the highest degree 102; the lowest — 25 ; and the range 

 127. The proportion of winds, S. E. 5.52, N. W. 4,81, N.E. 

 4.72, W. 3.24, N. 3.23, S. W. 3.09, S. 2.79, E. 1.45. The 

 proportion of weather, fair 16.91, cloudy 5.67, rain 6.49, 

 snow 1.32. At Fort Brady, the most northern station, the 

 mean for the year was 40.60 ; highest degree 89 ; lowest — 25 ; 

 range 114. At Cantonment Brooke, the most southern sta- 

 tion, the mean for the year was 72.37 ; the highest degree 92 ; 

 the lowest 40 ; range 52. On comparing the eastern and west- 

 ern posts, the means in January were 26.34 and 1 7.63, Febru- 

 ary 27.67 and 29.58, March 36.89 and 38.31, April 45.12 

 and 57.32, May 53.37 and 63.94, June 65.04 and 71.86, July 

 70.98 and 75.42, August 68.12 and 74.83, September 59-86 

 and 63.60, October 51.94 and 50.36, November 41.1S and 

 38.50, December 31.65 and 19.26. During the six winter 

 months the means were 35.94 and 32.27, being 3.67 higher at 

 the east ; and during the summer months 60.41 and 67.83, 

 being 7.42 lower at the east. The means for the year were 

 48.17 and 50.05, being 1.88 warmer at the west ; the highest 

 degrees were 94? and 102, the lowest — 5 and — 25, the ranges 

 99 and 127. The course of the winds was N. 2.91 and 4.03, 

 N. W. 6.25 and 5.74, N. E. 3.50 and 2.16, E. 1.54 and 1.50, 

 S.E. 1.62 and 4.58, S. 3.62 and 5.29, S. W. 7.83 and 4.37, 

 W. 3.54 and 2.66. Weather, fair 16.53 and 16.25, cloudy 

 9.62 and Q.m, rain 3.62 and 6.12, snow 0.60 and 1.41. Pre- 

 vailing winds at the East S. W., N. W. and S. ; at the West 

 N. W., S. and S. E. The proportion of fair weather was 

 about the same; of cloudy considerably greater; and of rain 

 and snow much less, at the east. 



" By the last table it appears that the aggregate mean tem- 

 perature was highest in 1825 and lowest in 1823, there being, 

 however, but a fractional difference between this and the fol- 



VOL. X. NO. II. APRIL. 1829- S 



