ABSTRACT FOR THE MONTH OF DECEMBER, 1902, 



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



THERMOMETER. 



.5 

 .3 

 • 6 

 .6 

 .8 



25-8 

 23.0 



3-9 



2.3 



.6 



2.8 



— 16.C 

 —9-1 



•° 



— 5.C 

 — 7- 



'•9 



— 0.. 



i.S 



28. ( 



>• 3 



5-4 



'I- 



18 



8. 

 9. 



^9 

 1.8 



i-'i 



B., 



■7 

 16. 



6. 

 7- 

 22! 



* BAROMETER. 



N.E. 

 N.E. 

 N.W. 

 N.W. 

 N.W. 



N.E 

 S.W. 

 S.W. 

 S.W. 



S.W. 

 N.E. 

 S.W. 

 S.W. 

 S.W. 

 S.W. 

 N E. 



N.E. 

 S.W. 

 N.W. 

 N.E. 

 N.E. 

 N E. 

 N.E. 



S.W. 

 S.W. 

 S.W. 

 SW. 



4-25 

 3.67 











ANALYSIS 



OF WIND RECORD." 









on. 





N. 



N.E. 



E. 



S.E. 



S. 



S.W. 



W. 



N.W. 











Miles 







516 



26,9 



249 



■56 



.20 



4°33 



676 



1320 





Duration in hrs. . 



54 



.72 



53 



24 



24 



236 



63 



99 



■9 



Mean 



veloc 



uy.... 



9.6 



'5 3 



4.7 



6.5 



5.o 



17. 1 1 10.7 



■3-3 





Greatest mileage in one hour was 39 on the 22nd- Resultant mileage, 2,260. 



ilooity in gusts was 48 on the 22nd- Resultant direction, N 81° W- 



nd records are from tho instruments on the tower of the City Hall, Montreal. 



Total mileage, 9,699. 



"Barometer readings reduced to sea-level and 

 temperature 32° Fahrenheit. 



t Mean of bi-hourly readings taken from 

 self-recording instruments. 



JHu 



observations a 



li 21 years only. \ 16 years only. 



The greatest heat was 39.3 above i 

 22nd- The greatest cold was 20.0 below 

 9th, giving a range of temperature of 5 



Highest barometer reading was 30>0 on the 

 15th ; lowest barometer was 29.38 ou the 3rd, 

 giving a range of 1.42 inches- 



Mil 



relative humidity observed ' 

 fell on 17 da; 



i the 9th. 

 Rain fell on 6 days. 

 Rain and snow on 4 days. 

 No- inches snow on ground 18. 



