Meteorological Abstract for trie Year 1893. 



Observations made at McGill College Observatory, Montreal, Canada. 



Height above sea level 187 ft. Latitude N. 45° 30' IT". Longitude 4 h 54 m 18f55 W. 



C. H. McLEOD, Superintendent. 



January 



February 



March 



April 



May 



June 



July 



August | 67 



September 54 



October W) 



November ] 35 



December 11 



II Devia- 

 tion from 

 19 years 



Means for 19 ) 

 years ending > ! 41.73 

 Dec. 31. 1893. S 



40.8 • 



42. 9 ■ 

 60.8 ; 

 84. H 

 86 5 

 87.1 

 9'i.fl 

 76.5 ! 

 72.0 



34.9 



53.2 

 52.0 



48 

 38.5 



15 5n 

 14. 52 

 I i.t.6 

 17.43 

 17 I'll 

 17 66 

 Hi 38 

 15 74 



n; 59 



13.48 

 17 97 



29.9871 



3d 6'7 



3ii su; 



511,1155 

 3H.5S.I 

 511 251 

 511.1^7 

 511.155 

 311 U9 

 5ii 554 

 511 6112 

 5i) 61.5 

 5H 882 



28 915 



29 256 

 29.441 

 29 254 

 29.245 

 29.612 

 25 5311 

 29.124 

 29.415 

 29.016 

 2: 1 05 

 29.345 



• 2550 



74 .4 



W. 



S.77° 

 S 71 

 S.46 

 S. 43° W. 

 S. 65 W. 

 S. 40° W. 

 S. 7U" W. 

 S.89.j"W. 

 8.6(1'," W. 

 8. 43° W. 

 S.36}° W. 

 S. 80° W. 



S.605°W. 



Mean 

 velocity 

 in miles 

 per hour 



18.1 

 16.6 



11 2 



12 7 

 11.4 

 12.3 

 14 9 

 16 9 



15.21 



§45 7 



2S IS 



155 



122.' 



J?f_. 



Ill *fi 



*2 &*z 



January . 

 February. 

 March — 

 April 



May- 



June 



July 



August 



September. 

 October — 

 November. 

 December. 



Means for 19) 

 yean ending > 

 Dec. 31. 1898.1 



nly. 11 "t" indicates that the temperature has been higher: "—" that it has 

 i. Eastern Standard time. The anemometer and wind vane are on the sum- 



* Barometer readings reduced to . '-2° Fah. and to sea level, t Inches of mercury, t Saturation 100. § For twelve years only. * For seven ye 

 beer. h„r,r than the average tor 19 >ears inclusive of 1893. The monthly ineas are derived from readings taken every 4th hour, beginning with 3 1 

 mit of Mount Royal 57 feet above the ground and 810 leet above the sea level. 



The greatest heat was 90.0 on August 11 : the greatest cold was 16.4 below zero on January 11, and 16.3 below zero on January 12. The extreme range of temperature was therefore 106.4. Greatest range of the thermometer 

 in one day was 40.3 on February 6: least range was 4 1 on April 15. The warmest day was August 11, when the mean tempera.ture was 78.57. The coldest day was January 11. when the mean temperature was 12.05 below /.er<e 

 The highen barometer reading was 30 882 on December 14. Lowest barometer reading was 28.943 on January 2, giving a ranee of 1.959 for the year. The lowest relative humidity was 23 on May 12. The greatest mileage <>t Hind 

 recorded in one hour was 62 on January 25, and the greatest velocity in gusts was at the rate of 72 m. p. h. on January 29. The total mileage of wind was 1545.172. The resultant direction nt the wind tor the year_ was s.i. i \ .. 

 and the reniltant mileage was 49. 4-,8. Auroras were observed on 28 nights. Fogs on 5 days, Thunder storms on 23 days. Lightning without thander, on 5 days. Lunar hah. s on 16 nights. Lunar coronas On 5 nignts 8olar 

 Halos on 10 days The first snowfall of the autumn was on October 29. The first sleighing of the winter was on December 3. On November 27, at 11 h, 47 m., there was a very sharp earthquake shock, its apparent direction 

 wasN. E. toS.W. 



Note.— The yearly means of the above, are the averages of the monthly means, except for the velocity of the wind. 



