﻿ABSTRACT FOR THE MONTH OF MAY, 1897. 



Meteoroloincal Observations, McGill College Observatory, MontTeal. Canada. Height above sea level, 187 feel. C H. McLEOD, duverintmrlmu 



23 Years means ^ 

 )r and includineV 

 lis month ... \ 



THERMOMETER. 



48.82 

 58.42 

 59-35 

 58.70 

 58.62 

 52.23 



50.50 

 50.87 

 54.08 



45.62 

 51. 7B 



\u 



BAROMETER. 



29.70,68 

 29.8487 

 29-9730 



29.6992 

 29.8437 

 29.6970 

 29.7623 

 '9.7457 



29 9743 



30 2528 



29.79<S3 

 .9.6577 



29.9285 

 30.0B70 



29.7528 

 29.9192 



30.176 

 30.280 

 30.395 



29.781 

 29.897 

 29.820 

 29 817 

 29.843 

 30.132 



30.246 

 30. 160 

 30.351 

 30.073 

 29 842 

 29.894 



29.938 

 30.180 

 30.247 

 30. 171 

 29.762 

 29.681 



29.729 



29.8338 



tMean 

 pressure 

 of vapor 



relative 



humid 



ity. 



46.8 



N.E. 





S.W. 



54.8 



S. 



52.2 



S.W. 



52.5 



S.W. 



Me; 

 velocity 

 in miles 

 perhour 



N.E. 

 N.E. 



N. 



23 SUNDA 







ABALYSIS OF WIND RECORD. 







Direction ' 



N. 



N.E. 



E. 



S.E. 



S. 



S.W. 



w. 



N.W. 



Calm. 



Miles 



■395 



2009 



164 



678 



9'5 



4.48 



776 



837 









Duration in hrs.. 



92 



148 



23 



57 



66 



233 



56 



69 





Mean velocity.... 



.5.16 



•3-57 



7-13 



11. f9 



.3.66 



.7.80 



.3.86 



.2..3 





Greatest mileage in one hour was 33 on the 30th. 

 Greatest velocity in gusts, 40 miles per hour on 



Resultant mileage, 2419. 

 Resultant direction, 8.67]° W. 

 Total mileage, 10922. 

 Average 14.68 miles per hour. 



§ Observed. 



t Pressure of vapour in inches of 



t Humidity relative, saturation being 100. 



^ 16 years only. 



« 11 years only. 



The greatest heat was 72 oj on the 14th ;l the 

 greatest cold was 33.° S on the 7th, giving a range 

 of temperature of 38.3 degrees. 



Warmest day was the 24th. Coldest day was 

 the 7th. Highest barometer reading was 30.395 



on the 8th. Lowest barometer was 29,475 on the 

 2l8t, gi/ing a range of 920 inches. Maximun 

 relative humidity was 100 on the 4th. 



Minimum relative humidity waa 27 on the 6th. 



Rain or snow fell on 19 days. 



Aurora was observed on 1 night; lunar halo o) 

 1 night; lunar corona on 1 night. 



Thunder storms on the 20th. 



E.arthquake shocks on the 27th. 



