ABSTRACT FOR THE MONTH OF SEPTEMBER, 1898. 



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





DAY 



THERMOMETER. 



BAROMETER. 



tMean 

 pressure 

 of vapor. 



r'e^S" 

 humid- 

 ity. 



Dew 

 Point. 



WIND. 



In Tenths. 



Hi 



Sg.2 



a.s 



|l 



ll 



DAY. 





Mean. 



Max. 



Min. 



Range. 



Mean. 



§Max. 



§Min. 



Range. 



General 

 direction. 



Mean 

 velocity 

 in miles 



i 



1 



i 





3 



'5 92 

 69 IS 



74.88 



67. 75 

 69.7s 

 64. »3 



60.83 

 5I-43 



49-58 



6o!oj 



63 67 

 6s. ao 



64 35 



55.=5 

 47- 13 



55 93 

 48.43 



'si'.i'i 



5a.88 

 57.08 



66.'" 



70.8 

 78.8 

 81.3 



90.3 

 76.0 

 76.8 



68'.8 

 66 3 

 58.4 

 63.8 

 55-6 

 64.8 

 68. 4 



7J.7 

 71.6 



7a. 5 

 60.7 



60'., 

 70.6 

 62 a 

 56.4 



56.7 

 65.6 



ill 



7'. 4 

 74 7 



63.. 

 60.8 

 70 



70.8 

 63.5 

 62.4 

 57.3 



56:6 

 47-8 



44 5 



42!6 

 SI. 6 

 54-3 

 61.0 

 57.0 



56.4 

 50.4 



40. 5 



47.6 

 42.0 



46.4 

 S..9 

 46-9 

 49.3 



s=.s 



54.0 



11 

 11.3 



■9-5 

 "■5 



16.8 



.1:1 



■9.3 



13.8 



i6'8 

 1B.4 



14^6 



16. 1 

 I|-3 



'3-7 

 •8.9 



3'°3" 

 29.80J8 

 39.7487 



29.8390 

 39 8403 

 29.7200 

 30 0350 

 30 2687 

 30.39" 



30 3*3; 

 30 2918 

 30.1458 



29.8602 

 29.9058 



29 751S 



30 0)30 

 30 2543 



29 9978 

 29.7153 



30 0002 



39.7583 

 29 SlOJ 



2,.984o 

 30.0345 

 30.0663 



30.070 

 30.007 

 39 788 



29.847 

 39.931 



29 833 



30 146 

 30. 327 

 30.452 



39-937 

 29.651 

 39 651 



39.786 

 39.719 

 39 672 

 29 833 

 30.1,6 

 30.742 



30 090 

 29 941 



2J 816 

 29 816 



39 639 

 29 871 



29.894 

 29.649 

 39.764 



39:66; 

 39.664 

 29 922 

 29.912 

 30.015 



I56 

 ■137 



!o6i 



!.6i 

 -313 



.150 

 .153 



.149 



.125 



.232 

 .362 

 109 

 .296 



■317 



.094 

 .094 

 .113 



'6587 

 .7063 



.4970 

 ■59 40 

 .56^0 

 .3863 

 .3960 

 ■2943 



3547 

 .3357 

 •4195 



.4725 



.3305 

 .2218 



.4357 



".4063 

 .2970 



.5380 



84.8 

 91 8 

 825 



74 3 

 77 5 



86.7 



gll 

 79 



68.7 



III 



BB.'j 

 74.2 

 832 



6i.3 

 66.5 

 68.8 



63.7 

 61.8 

 51.5 

 53.5 

 44-5 



40.7 

 55" 



57 3 



47-3 

 37-3 

 43-3 

 53-5 

 55-2 

 43-3 



5!-3 



N. 

 S. 

 S. 



S. 



s. 

 s. 

 s. 

 s. 



N. 



N. 



W. 

 N W. 



S.W. 



s. 



s^w. 



s.w. 

 s.w. 

 w. 

 s.w. 

 s w. 



N. 

 N.W. 



S.E. 

 S.E. 



W. 

 S.W. 

 S.W. 



s.w. 



7.17 



11.29 



20.17 



9.04 

 15.17 



18. 31 

 7.13 

 11,04 



18.39 



9 54 

 6.17 

 5. 93 



13.35 

 15.71 



17.50 



17.50 



15 08 



15.88 

 21.83 



16 04 

 <3.67 

 16.74 



9 50 



8.7 



53 

 4.7 



4.7 



8.'2 



11 

 5.3 



1.5 

 7-7 



6!8 

 3-0 



4-7 



'I.s 



6.3 



i'.8 



7 

 5 



5 



4 



6 



39 

 84 



69 

 39 



i 

 61 



80 

 96 

 81 

 19 

 77 

 4 



86 



i 



5' 



56 

 90 



11 



0.06 



O.S5 

 0.04 



o!i6 



0.03 

 1-45 



0.05 

 1.90 



0.36 

 03 



.... 



oil 

 o!oo 



0.06 



O.S5 

 04 



o.i6 



0.03 

 >.45 



0.0s 

 1.90 



0.36 

 0.03 



3 





6 



8 

 9 



SUNDAT II 



■3 



I6 

 17 



Sunday i8 



'9 



SlINUAV 35 



»7 

 '9 



8 

 9 





30.410 

 30 392 

 30.240 

 30 090 

 29 941 

 39 -933 



13 

 ■4 

 ■S 

 16 



18 SuNDA-jr 



■9 



33 

 34 





39.871 

 30 233 

 30. 29J 

 30.190 



29 894 



29.843 

 29.926 



30 016 

 30.086 

 30 13S 





26 

 37 



28 



29 

 30 





M^ns 



59 89 



67.77 



5" 9t 



■4.83 



39.9892 



30.0759 



29.8894 



.1865 



.4398 



80. .9 



53 48 



3.43° W. 



.362 



4.74 



3.5 



0.9 



54-5 



6.o3 





6.08 



Sums, 





34 Years racinsl 

 for and including ) 

 Ihismonlii ) 



58.55 



66 61 



SO. 79 



IS 83 



30.0167 







..80 



.3768 









s 12 72 



5.71 



f54 33 



3. .8 





3-i8 



t24 Years means for 

 <and including this 

 (month. 









AMAIYSIS OF WIND RECORD. 



• Barometer readings reduced to sea-level and 

 temperature 32* Fahrenheit. 



§ Observed. 



t Pressure of vapour in inches of mercury. 



X Humidity relative, saturation being 100. 



V 17 years only, s 12 years only. 



The greatest heat was 90.°3 on the 4th ; the 

 greatest cold was 40.°5 on the 21st, giving a 

 range of temperature of 49.8 degrees. 



Warmest day was the 4th. Coldest diiy was 

 the 20lh- Highestbarometerreading was30.452on 

 the 10th. Lowest barometer was 29.532 on the 18th, 

 giving a range of 920 inches. Maximum rela- 



tive humidity was 99 on the 18th, 23rd and 25th. 

 Minimum relative humidity was 56 on the 13th 

 and 20th. 



Rain fell on 22 days. 



Hail fell on 18th. 



Auroras were observed on 2 nights. Lunar 

 balos on 1 night. Lunar coronas on 3 nights. 



Fog on 4 days. 





Dlrcaion 



N. 



N.E. 



E. 



S E. 



s. 1 s.w. 

 3847 1 3142 



W. 



N.W. 

 ~67 



Calm. 





Mile. 



718 



iS 





649 





Duration in lirs.. 



to 





217 



217 aaa 



96 



49 



6 





Mean velocity.... 



89.75 



9.03 





13.53 



13 12 14.15 



15.31 



19.61 







Oreatestmiloasein one hour woB 40. on tiie Resultant mileage, 6,0S5. 

 23rd and 21tli. Resultant direction, S. «=> \V. 



Uroatostvelooity in gusts 60 miles per hour on Total mileage, 9,793. 

 "» ""'• Average velocity 13.62 m. p. h. 



Thunder 

 18lh and 19th 



storms ( 



n l8t 



2nd, 4tb, 9th, 10th, 





