ABSTRACT FOR THE MONTH OF MAY, 1898. 



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



THERMOMETER. 



Mean. Max. Min. Range. 



BAROMETER. 



Mean. §Max. §Min. Range, 



29.«433 

 29.74B7 



39-9793 

 S9.9383 

 39.8398 

 19.8257 

 29.9580 

 29.9873 



29 9452 

 29.7893 

 29 8682 

 29 9403 



29.7305 



29.868 

 29.874 

 30.003 



30.018 

 29.967 



30.13s 



30 038 

 29.814 

 29.936 

 29.98s 

 29.903 

 29.770 



29.590 

 39.590 

 30 173 



.4475 

 .3867 

 .3435 



^3938 

 .4970 

 .4707 



N.E. 



W. 



N W. 



S.W. 

 W. 

 S. 

 S.VP. 



ITso.-. 



,.96 



nth. 







AUALYSIS 



OF WIND RECORD. 







Direction 



N. 



N.E. 



E. 



S.E. 



s. 1 S.W. 



W. 



N.W. 



C*.M. 



Mile. 



33t8 



303 



234 



69. 



■775 1 11.84 



1239 



735 





Duration in iirs.. 



.84 



3* 



37 



66 



148 



98 



.02 



57 



28 



Mean veiocity... 



12.60 



8.91 



S.67 



.0.47 



...99 



is.oB 



IJ.14 



.2.72 





Resultant mileage, 1,665. 

 Resultant direotion,S.87i° W. 

 Tottil mileage, 8,469. 

 Average velocity 11.3S m. p. h. 



* Barometer readings reduced to seo-lovel and 

 temperature 32° Fahrenheit. 



§ Observed. 



t PresBure of vapour in inches of mercury. 



t Humidity relative, saturation being 100. 



If 17 years only, a 12 years only. 



The greatest heat was 79''. 5 on the 31st; the 

 greatest cold wa* 34'^. 5 on the 6th, giving a 

 range of temperature of 4o.U degrees. 



Warmest day was the Slet, Coldest day was 

 the 5th. Highest barometer reading was 30-266 on 

 the 21st. Lowest barometer was 29.590 on the 19th 

 and 20th, giving a range of 0*676 inches. Maxi- 



mum relative humidity was 98 on the 24th and 

 25th. Minimum relative humidity was 30 on the 

 8th. 



Rain fell on 16 days. 



Lunar halos on 2nd and 5th. Solar halo on the 

 2nd. Lunar coronas on the 6th and 7th. 



Fog on 5 days. Thunder on 14th, I9th and 

 22nd. 



