ALLISON — ON THE METEOROLOGY OP HALIFAX. 177 



accurate, and perhaps slightly, varying from these ; but we may at 

 present rely upon these deviations as elo8€ly approximating to the 

 truth. 



As the tables are before you I do not generally recapitulate the 

 figures, but comment upon the monthly and yearly characteristics, 



January, 1871, was slightly deficient in heat, wiih a maximum 

 and minimum temperature both low, the latter — 13^.7 — being very 

 seldom reached in Halifax. The month having been cold and dry, 

 we naturally had a high mean barometer, and the extraordinary 

 height of 30.643 was attained. K. W. wind succumbed to W. N. 

 W., and the mean velocity was very nearly li2 miles per hour. 

 Sleighing was confined to 14 days. 



February, usually milder th?n Janimry, was last year slightly 

 colder, and the maximum remained low. We had no such cold 

 days, however, in February as in January. Mean pressure declin 

 ed considerably, and the relative humidity was much less. Though 

 some falls of both rain and snow were heavy, the month had a fair 

 share of brightness ; wind direction remaining the same, and veloci- 

 ty almost identical. Sleighing on 17 days. 



March became very mild, and the thermometer never marked 

 below 16.2. Mean pressure was higher than normal, and did not 

 fall to 2-9 inches. Rain exceeded its normal by 25 per cent, and 

 there were but 2 days sleighing. Prevalent wind veered to N. W.,. 

 with, a speed of 12.29 per hour. 



April on the contrary was cold and backward, with low maxim- 

 um ; and a barometer mean below its normal; with excess of N. 

 wdnd and great velocity. Precipitation was much as usual, and we 

 had one day of sleighing. 



The characteristics of May might serve as a standard for that 

 month, with the exception of the great heat at its close, when the 

 thermometer marked 8 7°. 2. This, however, did not bring the 

 temperature quite up to the normal. 



June was a very cool month, but exempt from frost. Its pres- 

 sure was normal, and amount of cloud as usual. The peculiar 

 direction of prevalent winds is worth noting, although the same 

 S. E. triumphed in 1869. Mean velocity was 7.30 per hour.. 

 Wet and dry days were in their customary proportion. 



