﻿ABSTRACT FOR THE MONTH OF JULY, 1897. 



Meteorological Observations, McGill College Observatory, Montreal, Canada. Height above sea level, 187 feet, C. H. McLEOD, Superintendent. 



THERMOMETER. 



Mean. Max. 



71.05 



62.58 

 81. .3 

 79.67 

 82. 13 

 78.65 



6j 53 

 62.12 

 67.78 

 70 85 



60.58 

 64.90 

 65.40 



29.7452 

 29.7518 

 29 9677 



29.8972 



29 9573 



30 0862 

 29.9782 

 29 8455 

 29.9130 



29.6678 

 29 7098 



30.2667 

 30. J048 

 29 9540 

 29 8138 

 29.6680 

 29.6498 



30.0353 

 30 0292 

 29.9633 



"9 743 



29.75s 

 29.808 

 30.007 

 30 085 



29 891 

 29 745 

 29.726 



30.062 

 30 083 

 29 979 



29 59} 



29 637 

 29.864 

 30033 



29,946 

 29.897 

 29 830 

 29.717 



s w. 

 s.w. 



N.E. 



N.E. 

 N.E. 

 S.W. 

 S.W. 



s w. 



N.E 

 N.E. 



S E. 

 S.E. 

 S W. 



N. 



1[58.5o 



ANALYSIS OF WIND RECORD. 



Direction 



N, 



N.E. 



E. 



S E. 



S. 



S.W. 



w. 



N W. 



Calm. 



Miles 



955 



1957 



371 



955 



768 



2502 



297 



177 





Duration in hrs.. 



88 



171 



46 



95 



75 



302 



38 



26 



3 



Mean velocity.... 



10.85 



11.44 



8.07 



10.05 10.24 



12.33 



7.82 



6.81 





Greatest mileage in one hour was 28, on fue Resultant mileage, 'HO. 



9"i- * Rfsultant direction, S.lSJo E, 



Greatest velocity in gusts 3fi miles per hour on Total mileage, 7982. 



the 9th. Average velocity 10.73 m. p. h. 



* Barometer readings reduced to sea-level and 

 temperature 32° Fahrenheit. 



§ Observed. 



t Pressure of vapour in inches of mercury. 



t Humidity relative, saturation being 100. 



f 16 years only, s U years only. 



The greatest heat was ftS^U on the 5th ; the 

 greatest cold wa.s 54.° 5 on the 1st, giving a range 

 of temperature of ilS^S degrees. 



Warmest day wa« the 5th. Coldest day was 

 the 29th. Highest barometer rending was 30.343 on 

 the 19th. Lowest barometer was 29.599 on the 12th 

 giving a range of 0.744 inches. Maximum relative 



humidity was 99 on the Ist, ISthi 14th. iVIinimum 

 relative humidity was 10 on the 7th. 



Rain fell on 19 days. 



Auroras were observed on 1 night 



Fog on 1 day— on 23rd. 



Thunderstorms on 4 days— on Ist, 5th, 11th 

 and 23rd. 



