ABSTRACT FOR THE MONTH OF MARCH, 1900. 



Meteorological Observations, McGill College Observatory, Montreal, Canada. Height above sea level, 1S7 feet. G H. McLEOD, SupenntendenU 



THERMOMETER. 



«BAROMETER. 





S.W. 

 S.E. 

 S.W. 



TT 47.38 



nth. 





a 



ANALYSIS 



OF WIND RECORD. 







Direction 



N. 



N.E. 



E. 



S.E. 



S. 



S.W. W. 



N.W. 



Calm. 



Mllci 



33; 



841 



69, 



■593 



U90 



7048 aoos 



1699 





I'liraiion In hrs.. 



36 



38 



40 



77 



86 



274 ■" 



81 





Mean velocity.... 



9-36 



ai.i6 



17.4a 



so. 69 



.50, 



25.7= "7 91' 



20.98 





, OrotttcBt iiiilu 



iHt. 



IlMullaiit mi 



oity in 

 ooBo, 7 



hour 

 uetSi 56 

 765. 



WHS 64, 

 milos ]i 



on the 

 er hour 



lie 

 To 

 Av 



ultant direction 

 almilongo, 15.51 

 Qrago velocity. 2 



S. 47.6 

 .85 mile 



W. 



a per hour. 



" Barometer readings reduced to aoa-level and 



perature 32° Fahrenheit. 



t Mean of bi-hourly readings taken from 

 self recording instruments. 



1 Humidity relative. Mean from obseryations 

 at 8, 15, and 20 hours. 



H 19 years only. § 14 years only. 



The greatest heat was 39.2 on the 19th ; the 

 greatest cold was —5-8 on the 12th, giving a range 

 of temperature of 45.0 degrees. 



Warmest day was the 20th. Coldest day was 

 the Sth. Highest barometer reading was 30.67 on 

 the 5th. Lowest barometer was 29.23 on the 2nd, 

 giving a range of 1.44 inches- 



Mil 



1 relative humidity observed \ 



) 28th. 

 Rain fell on 3 days. 

 Snow fell on 20 days. 

 Rain or snow fell on 20 days. 

 An aurora was observed on the 12th. 

 A lunar halo on 1 night. 

 Lunar coronas on 2 nights.; 

 Fog on 2 days. 



