ABSTRACT FOR THE MONTH OF SEPTEMBER, 1901, 



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







THERMOMETER. 



* BAROMETER. 



JMean 



WIND. 



"^1 



'k 



= C 



■?•? 



=1 











, 









, Mean 



DAY. 





MeL. 

















humid- 



General 



velocity 









'rt ^ 









Mas. 



Min. 



Range. 



Mean. 



Max. 



Min. 



Range. 



iiy. 



direction. 



in miles 

 per hour 



A'^ai 



a 



Ul 



^ s 





















30.00 





84 



N. 



10.6 



39 













SUNDAY ^ 



68:47 

















29.98 











52 









^ 





, 



68.77 





60 







17.0 



30-07 



30.12 



30.02 





85 





















73-39 





fth 































, 



81.5 



65 



8 



15-7 



30.07 



30.12 



30.00 











78 









5 







76..', 

 7>-97 











30.08 



























7 



8.-7 



56 

 46 



' 



25-5 



29.93 



30.03 



29-80 





79 

 60 



N.W, 



17-3 



94 



0.84 









































9 



56.88 

 61.52 



65.7 



47 





16.7 



30.04 



30.10 



29.92 





63 



w. 



e.8 



78 

















59 -0 



55 



5 



3.5 





29.92 



29-74 





91 



















12 



58.78 









10.6 







29-49 





94 





^^ 



01 







0.3S 



12 

















29.65 





29-52 





74 





6-9 



33 



O.OI 





O.OI 







>4 



6a. 87 



70.4 



52 



9 



■7.5 



29.91 



29.96 



29.77 





76 





5,5 











'* 









68. s 



56 



a 















S 



6,0 



01 



0.14 





0-14 













i6 





72.2 



58 



5 



•3-7 



29.71 



29.8, 









S.W 



19-5 



79 









16 











52 



3 





29.78 





29-71 





91 



















IB 





60.8 



4« 



3 



ia-5 



29,93 



30.02 



29 -78 





76 





13.4 



73 



0-13 





0- 13 









SO. 78 



56.5 





7 





30. .6 



30.31 







74 



, W. 





41 



0,07 





0,07 









48. 78 





39 







30.19 



30.31 



30.01 





79 





5-7 



31 



0,02 





0.02 



20 





ai 



51.75 



57-7 



46 





10.9 



30.09 



30.19 



30.00 





74 





14-7 



91 



0.02 





0.02 



21 







56.95 



68,2 



44 







24.2 



30.09 



30.19 



30.01 





74 



w. 



IS? 



89 





















62.84 





5" 









29-99 





29.90 



















23 







57-29 



64.0 



44 







30.0 



30-17 



30.43 



29,9s 











67 









24 







45-56 



53-0 



3» 















64 







94 













36 



48.09 



56.9 



36 



1 





30.45 



30.54 



30-37 





69 





5.6 















98 



56.98 



69-9 







19-6 

 19.9 



30.32 

 30.16 



30-39 

 30.25 



30.08 





76 

 75 



S.W. 

 S.W. 



13-3 



79 









27 



23 





Sunday 39 



64.28 

 57-92 



60.36 





58 

 49 



Q 





29.85 

 29.87 



30. oS 

 30.09 



29.56 

 29,56 





96 

 6t 



E. 

 W. 







1-53 





1.53 



29 





64-5 



3 



■5-2 



19-7 



50 





30 





67-39 



52.36 



15.02 



30.011 



30.109 



29.901 



,208 



76.6 



W.ij-aS'N 



§...87 



II60.3 



3-95 





3-95 









37 YcarsmcansJ 



































7 Years means 



for and iiicluding J 

 this month 1 



58.53 



66.53 



50.84 



15-70 



30.01s 







.185 



76,2 





,2.81 



53.90 



3.30 





3.30 



Jfor 

 (this 



and including 

 month. 



ANALYSIS OF WIND RECORD. 



Qroatest miloaRein ODoh 

 Ureateat velocity in guf 

 ur on tho 30th. 

 Resultant miloiige, 4723. 



a tho 30th 

 miles per 



Kesultaat direction. W, 

 Total mileage, 8,544. 



• 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 WO. 

 Mean of observations at 8, 15 and 20 hours. 



H 20 years only, g 15 years only. 



The greatest heat was 83.0 on the Gth; the 



greatest cold was 36.9 on the 26th, giving a range 



of temperature of 46.1 degrees. Warmest day was 



the 6th. Coldest day wag the 25th. 



Highest barometer reading was 30.57 on the 



2oth; lowest barometer was 29.49 on the 12thi 

 giving a range of 1.08 inches. 



Minimum relative humidity observed was 31 

 on the 30 th. 



Bain fell on 13 days. 



Thunderstorms on the 7th and 16th- 



Fog on the 3rd. Lunar halo on the 28th. 



