ABSTRACT FOR THE MONTH OP SEPTEMBER, 1890. 



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



THERMOMETER. 



iiii 



66.47 



49.83 

 50.77 



♦BAROMETER 



SO 



.851 





2427 



:* 





2q 



9870 



30 



0402 



10 



0107 



to 



^417 



(o 





3° 



31.8 



29 



758o 



SO 



0518 







29 



9842 



29 



9723 





9217 



=9 



9 8-.2 



29 



9422 



=') 



8165 



10 



1422 





q,iS 



30 



1408 



V> 



3198 



3° 



2083 



30 

 30 

 3o 

 3o 

 30 

 30 



293 

 O76 



30 

 3° 



30 

 30 

 29 



124 

 292 

 307 

 381 

 '53 

 885 



30 



30 

 30 



106 

 982 

 047 



183 



30 

 30 



JO 

 ^o 

 30 



094 

 97' 

 295 

 3H 

 280 



30 



230 



29 



3° 

 3° 

 29 

 29 



935 

 164 

 313 



",° 

 666 



29 

 29 

 29 

 29 



29 



97S 

 929 

 942 

 953 

 792 

 8.9 



29 

 29 

 3° 

 30 



29 



808 

 743 

 058 



990 



30 

 10 



279 

 179 



sure of 



v;!]",ur- 



-384 6 

 ■ 3S07 



S.W. 

 S.W. 

 X.E. 



N.E. 

 E. 

 S.E. 



N.W. 



S.W. 

 S.W. 



Mean 



velocity 

 in mile; 



ml. 





ANA LYSIS 



OF 



WIND RECORD. 







N. 



N.E. 



E. 



S.E. 



s. 



S.W. 



W. 



N. W. 



Calm. 





792 



602 



150 



709 



1070 



3262 



917 



620 









Duration in hrs.. 



77 



65 



27 



83 



99 



23" 



72 



61 



S 



Mean velocity... 



12.9 



93 



5.6 



8-5 



10.8 



14. 1 



»-f 



.0.2 





Greatest niileag 

 Greatest velocil 

 the 30th. 

 Resultant miler 



y in gu 

 ge, 3410 



hour wi 

 ts, 42 n 



a 38 on 



lie 30th. 



Resul 

 Total 

 Avern 





ction, S 

 8,122. 

 ee, 11.3. 



49" W. 





•Barometer readings reduced to sea-level and 

 temperature of 32° Fahr. 



5 Observed. 



t Pressure of vapour in inches of mercury. 



I Humidity relative, saturation being ioo 



IT Nine years only. 



The greatest heat was 80. on the 8th ; the 

 greatest cold was 38.1 on the 29th, giving a 

 range of temperature of 41.9 degrees. Warmest 

 day was the 5th. Coldest day was the 28th. 

 Highest barometer reading was 30.45U on the 

 20th; lowest barometer was 29.666 on the 13th, 



giving a range of 0.784 inches. Maximum relative _ 

 humidity was 100 on the 12th and 13th. Minimum* 

 relative humidity was 48 on the 24th. 



Rain fell on 11 days. 



Aurora were observed on four nights. 



Hoar frost on four days. 



Fog on four dajs. 



Slight earthquake at three minutes past three 

 on the morning of the 26th. 



