Eecent Meteokologicat. ISToTES. — By F. W. W. Doane, 



M. Can. Soc. C. E., City Engineer, Halifax, N. S. 



Head May 31st, 1911. 



Dr. H. S. Poole's comparison of the montMy mean tem- 

 peratures of Halifax, ISTova Scotia, and Plymouth, England, 

 tempts the writer to add a few comparatively unimportant notes. 



Although the latitude of Plymouth is six degrees further 

 north than that of Halifax, the mean temperature of Plymouth 

 for the month of January is 42 deg. F., while that of Halifax 

 is only 20 deg. F., a difference in favor of the higher latitude 

 of 22 deg; During the month of June, the mean temperature 

 in the two cities is about the same, 59 deg. F. During July 

 and August, the mean temperature at Plymouth is between 61 

 deg. and 62 deg. F., while at Halifax it has risen above 64 

 deg. F., as it should. For the month of September the records 

 show again about the same mean temperature for the two places, 

 58 deg. F. During October, jSTov ember and December, however, 

 while the mean temperature at Plymouth drops 16 deg. F., at 

 Halifax it drops 38 deg. F. 



The diagram prepared by Dr. Poole illustrates clearly the 

 great advantage that the English city receives from the Gulf 

 Stream, and the great disadvantage that the ISTova Scotia capital 

 labors under in consequence of its location in the path of the 

 Arctic current. The yearly mean temperature for Plymouth is 

 51 deg. F., that for Halifax, 42 deg. F. 



The mean temperature in Halifax for March as shown by 

 Dr. Poole, is about 27 deg. F. For March, 1911, it was 28.85. 

 Rain was recorded on eight days. The total precipitation was 

 4.086 inches, while the mean is 5.325. The weather during 

 the first part of the month was generally cold and cloudy. The 

 wind movement was greater than usual, with prevailing direc- 

 tions of northeast, southwest, northwest, west and north in the 



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