METEOROLOGY OF STRATFORD, C. W. 87 



METEOROLOGY OF STRATFORD. 



ilBSTBACT OF METEOROLOGICAI, OBSERVATIONS AT STRATFORD, FOR THE TEAR 1861 

 BY C. J. MACGREGOR, M.A. 



Approximate height of Stratford above the sea, 1182. 



The instruments with which the observations, embodied in the annexed sum- 

 mary, have been taken, were made by Negretti & Zambra of London, England. 

 They are lixed in position in a shed attached to the Grammar School, and are 

 thus protected from being unduly influenced by radiation and the direct 

 force of the wind. Their index and capillarity errors are known, and by the 

 " tables of errors " the readings are corrected at the time of observation. 



1. Barometer. 



Mean height 28.6955 



Highest 29. 317 on January 22, at 9 p,m 



Lowest 27.943 on May 7, at 7 a.m. 



Yearly range 1 . 374 



Greatest daily range 0.951 from 7 a.m. of Feb. 7th to Feb. 8th. 



The " means " of all the months except June, August, September, and 

 December, were below the mean for the year. 



2. Temperature. 



Mean of the year 43°53 



Highest 90°4 on August 2. 



Lowest -20o4 on January 13. 



Yearly range 110°8 



Greatest monthly range 67°2 in February. 



Least " " 31°6 in November. 



Greatest daily range 36°5 on May 30. 



Least " " 4°2 on April 2. 



Warmest month, July, mean temperature . 65°9 

 Coldest month, January, " " 18°6 



The " means " of six months, from May to October inclusive, were above the 

 " mean " of the year. 



3. Elasticity. 



Mean of the year 275 



4. Humidity (Saturation being 100.) 



Mean of the year 81 



5. Amount of cloudiness (0-10.) 



Mean of the year 6.5 



6. Rain. 



Number of days on which rain fell 119 



Number of hours during which rain fell. . 759.45 



Depth in inches ai.8135 



The month in which the greatest amount of rain fell, was July, depth. 4.4772 

 inches. The month in whice the least fell was January, depth, 0.4138 inches. 



