ABSTRACT FOR THE MONTH OF MAY, 1900. 



Meteorolog'ical Observations, McGill College Observatory, Montreal, Canada. Height above se a level, 187 feet. C. H. McLEOD, Superintendent. 



THERMOMETER. 



4.. 6 

 43.1 

 49.6 



*BAROMETER, 



=9-77 



29 93 

 29.92 

 30.05 



30.08 

 30.30 

 30-39 



66.47 



■751.04 



(I ANALYSIS OF WIHD RECORD. 



DliccHon 



N. 



N.E. 



^- 



S.E. 



s. 





31>4 



472 



409 



1248 



902 



l>"rmion in hrs. . 

 Mean veloclly.... 



193 

 l6.~ 



42 



11.24 



2S 

 14.2s 



84 

 14.86 



68 

 ~.26 



<'ri>mcBt iiiiloaKo ii 

 '"0 loth. 



hou!';«'ffili'll,"."''^ '" «"«t«' S6S.\V. miles ,>e, 



HestiUiint miloano, 2900. 



Resultant direction, W. 6 S" N. 

 ToUilmilcnKe.n.flgS 

 Avorngo velocity 15.99 '".p.h. 



• Barometer readings reduced to sea-level and 

 iperatureSS" Fahrenheit. 



t Mean of bi-hourly readings taken from 

 self-recording inatrumenta. 



1 Humidity relative, saturation being 100- 

 Mean of obs-ervationa at 8, 15, and 20 hours. 



If 19 years only, g 14 years only. 



The greatest heat was 80-0 on the 31st; the 

 greatest cold was 28.0 on the 10th, giving a range 

 of temperature of 52.0 degrees. 



Warmest day vrai the Slst. Coldest day was 

 the 10th. Highest barometer reading was 30.39 on 

 the 29th. Lowest barometer was 29.44 on the 3rd, 

 giving a range of .95 inches- 



MinimuD 

 a the 4th. 

 Rain fell 

 Snow fell 



a relative humidity observed \ 



Am 

 Fog( 



11 days. 



I 3 days, 

 r snow fell on 14 days, 

 ora was observed on the 5th. 

 the 3rd. 



