ABSTRACT FOR THE MONTH OF MAY, 1903. 



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



THERMOMETER. 



* BAROMETER. 





Mean 



S's£ 



General 

 direction. 



pSrhou?. 



SS.S 



N.W. 





67 



S.E. 



ir.9 



57 



S.E. 





25 



S.W. 



20. 8 





N.E. 





87 



N.E. 





80 



N.E. 





09 



S.W. 





94 



S.W. 



n .6 



92 



S.W. 



so.6 



57 



S.W. 





3« 



N.E. 



7-8 



76 



S.W. 







N.E. 



.3.8 





S.W. 





67 



N.E. 



10.7 



92 



S.W. 



19.6 



87 



S.W. 





52 



S.W. 



13.8 





S.W. 



16.0 



64 



S.W. 





55 



N.W. 







N.E. 





98 





[for and includii 



ANALYSIS OF WIND RECORD. 



Direction.. 



N. 



N.E. 



E. 



S.E. 



S. 



S.W. 



W. 



N.W. 



Calm. 





525 



1815 



7" 



796 



995 



37"4 



470 



873 





Duration in hrs., 



48 



■44 



14 



52 



7 6 



2.5 



36 



63 





Mean velocity.... 



.0.9 



12.7 



5.1 



*5-3 



■3-1 



■7-5 



13.1 



13.9 





Greatest mileage 

 Greatest velocity 



noneh 



in gusts 



ur was 

 was 72 



2 on the 

 d the Is 



let. 





x K 

 Kes 



sultant 

 lltant di 



mileage 

 rection, 



2,932. 

 S 46° W. 



t For 27 days only. 



m Total mileage, 9,319. 



•Barometer readings reduced to sea-level and 

 temperature 32° Fahrenheit, 



t Mean of bi-hourly readings taken from 

 self-recording instruments. 



t Humidity relative, saturation being 100. 

 Mean of observations at 8, 15 and 20 hours- 



V22 years only. § 16 years only. 



The greatest heat was 84.8 above zero on the 

 19th. The greatest cnld was 27.9 above zero on the 

 2nd, giving a range of temperature of 56.9°. 



Warmest day was the 18th. Coldest day ^ 

 1st. 



Highest barometer reading was 30.52 ■ 

 2nd ; lowest barometer was 29.58 on tt 

 giving a range of .94 incheB- 



i the 2nd. 

 Rain fell c 



elative humidity obae 



