



ABSTRACT FOR THE MONTH OF DECEMBER, 1914, 













Meteorological Observations, Taken at McGill College Observatory 



Height above sea-level, 187 feet. C. 



H. McLEOD, Superintendent. 











DAYS. 



THERMOMETER 



• BAROMETER 



J Mean 

 relative 

 humid- 

 ity. 



WIND 



8 S -S 

 0* o w 



1! 



§1 



c 1 



3| 



DAYS. 























General 



velocity 









Mean. 



Max. 



Mln. 



Range. 



Mean. 



Max. 



Min. 



Range. 





direction. 



in miles 

 per hour 



















1 

 2 

 3 



45.2 

 42.8 

 39.2 

 27.8 

 20.2 



47.8 

 45.8 

 47.3 



42.6 

 30.6 

 33.1 



5.2 

 6.2 

 14.2 



30.21 

 30.09 

 30.24 



30.22 

 30.18 

 30.45 

 30.64 



30.19 

 29.97 

 29.98 

 30.48 



.03 

 .21 

 .47 

 .16 



80 

 81 

 66 

 54 



svv 



SE 

 NW 

 NE 



11.0 

 8.7 



17.5 

 6.5 





 

 4 

 66 



.09 

 .40 

 .01 





.09 

 .40 

 .01 



1 



2 

 3 

 4 









6 



24.8 



10.3 



8.5 



30.60 



30.72 



30.65 



.07 

























8 



20.8 

 26. 3 

 26.6 

 20.8 







0.0 



30.62 



30.68 



30.53 



.15 



57 



NE 



17.6 



88 









6.. 













12.1 





30.52 



30.15 



.37 

































30.25 



30.07 































5.7 



30.29 



30.33 



30.26 



.07 































5.7 



30.14 



30.25 



30.00 



.19 

























11 

 12 



10.2 

 23.9 







11.4 





30.00 



30.03 



.06 

























30.0 



17.2 



12.8 



30.19 



30.20 



30.10 



.10 

























SONDAT 13 



30 







7.7 





30.20 



29.50 



.61 



07 



S 



14.1 









5.S 



.25 



13.. 



. .Sdndat 













23.9 





29.58 



29.14 



.44 



67 































6.6 





30.13 



29.52 



.61 



60 













.05 



















10.0 





30.35 



30.10 



.16 



63 





15.8 



6 







.06 



















15.0 





30.44 



30.33 



.11 



67 













T 



















11.7 





30.40 



30.25 



.15 



03 























19 



26.3 



.34.6 



16.0 



17.6 



20.94 



30.20 



29.70 



.44 



60 















.33 

















13.4 



18.6 



30.25 



30.42 



29.87 



.55 



49 



NW 



17.0 



91 









20.. 



. . Sunday 















22.5 





30.33 



20.47 



.86 



72 













.55 

















0.B 



24.1 



29.68 



29.01 



29.53 



.38 



59 





20.6 









.01 

















— 4.2 



9.2 



30.00 



30.18 



29.92 



.26 



52 













T 

















— 7.7 



6.7 



30.15 



30.22 



30.06 



.16 



50 





8.1 









.03 

















—10.8 



8.0 



30.23 



30.33 



30.10 



.23 



61 





0.0 



















20 



—10.0 



— 7.4 



—15.6 



8.2 



30.53 



30.66 



30.35 



.31 



57 





























—10.7 



28.7 



30.33 



30.63 



30.15 



.48 



07 



S 



13.2 









T 



T 



27.. 















14.0 



14.5 



30.26 



30.31 



30.22 



.00 



64 





14.7 











T 

















23.8 



7.7 



20.88 



30.24 



20.38 



.86 



72 



S 



12.7 











.28 

















10.8 



20.0 



29.62 



30.13 



29.26 



.87 



64 



NW 



25.4 



20 



.02 





.02 











31 



0.3 



12.4 



4.0 



8.4 



30.31 



30.37 



30.21 



.16 



56 



NW 



10.6 



72 







T 













18.70 



24.81 



12.34 



12.51 



30. 152 



30.308 



29.003 



.316 



61. IS 



NW 



15.90 



35.43 



0.52 



27.8 



2.00 









































("40 Years means 







for and Inclining 



10.21 



25.05 



12.24 



13.72 



30.025 







.200 



82.0 





14.78§ 



25.01 



1.27 



25.04 



3.72 



. ? or 



and lnclud- 







this month. J 









































ANALYSIS OF WIND RECORD. 



The greatest heat was 47.8° above zero on 

 1st. The greatest cold was 15.6° below zero or. 



the 



the 



















































26th. This gives a range of 63.4°. 





































The warmest day was the 1st. The coldest day 



* Barometer readings reduced 



to BO. 



-level and 









































S. 



S.W. 



W. 



N.W. 



CALMS 



was the 26th. 







rnlrnn 















































400 



700 



2132 



2327 



3144 







The hiuhest barometer reading was 30.72 on the 

 5th. The lowest barometer reading was 20.14 on 

 the 14th. This gives a range ol 1.58 inches. 















Duration in hours. . . 



7 



177 



IS 



33 



58 



126 



147 



162 



16 



t Humidity relative, saturation 



being 



100. Mean 







































Mean Velocity. 

 Total mileage, 





4.7 



10.8 



10.7 12.1 



12.1 



16.0 



15.8 



10.4 







The minimum relative humidity observed 

 33 on the 7th. 





ing hygrometer. 

 § 27 years means. 



















1600. 



The giL':ites1 mik-aiie in ono hour w :s ;i.l on the 22nd. 







Resultant direction, N 01° 



4' W. 







1 33 years means. 













Resultant mileage, 3048. 

























































































