















































^■^ 





ABSTRACT FOR THE MONTH OF SEPTEMBER, 1899. 



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



DAY 



THERMOMETER. 



♦ BAROMETER. 



tMean 

 pressure 

 of vapor. 



r'efire 

 humid- 

 ity. 



Dew 

 Point, 



WIND. 



IN Tenths. 



■1^ ^(Ti 



ii 



li 



il 



DAY. 



Mean. 



Max. 



Mln. 



Range. 



Mean- 



§Max. 



SMin. 



Range. 



General 



Mean 



i;='ri2 



per hour 



',Ul 



17-45 

 'til 



5-S4 

 6.12 



16.58 

 ■5.84 

 16,84 

 16.42 



17-75 

 8,46 

 15.96 

 12,29 



II 



20,71 



3l:62 

 ■7-84 

 18.10 

 17-49 



7-8 



6 



8-3 



i:l 

 7-5 



7.8 



li 

 1.3 



6-3 

 83 



8.8 

 6.0 



9 7 

 b'o 



5 

 6-7 



6 

 9 



s 



6 

 3 



8 



5 



I 



•) 



Sunday lo 



■5 



SUMUAV 17 



iS 



Sunday a* 



a6 

 »9 



S7..3 

 64. ,o 



56.37 

 6.. 17 

 56.48 



6i!i7 

 57-35 



60.7S 

 5B.53 



i:E 



53.35 



65.27 

 55.46 

 52 43 



48:75 

 42.78 



64.87 

 52-78 

 45-67 

 55-35 



63-5 



63,2 



64-5 



59-8 

 69.2 

 65 ■ 



52.8 



III 

 76.2 



73-> 



56-9 

 48-6 



ir.i 

 49-5 

 64.6 

 67-5 

 49 5 



54-2 



50-6 

 S4-3 

 50-5 

 45.9 

 54-5 

 49,0 

 49-8 



56.S 



40.4 



S9-0 



49-7 



38^5 

 37-4 

 37-9 



57-8 

 4S-5 



46-5 

 36.. 



.1:1 



20,6 

 12.6 



13-2 



;i:l 

 ■6.7 



■9-4 



8.3 

 ■3-6 



12:8 

 ■38 

 23.6 



II. 3 

 l.l 



;8-4 



5-5 



30.1627 

 30.0492 



30-0373 

 29-8442 

 30.o6ii2 

 30-0860 

 29-8448 

 30.0717 



29-9358 

 29.5398 

 29.7782 

 30-0953 

 30-3007 

 30.3'37 



29-9483 

 29.9908 



29 , 8067 

 29.9727 

 30-2765 



29-7898 

 29.6625 

 29.7955 

 29-9732 

 29-9138 

 29.9567 



30.181 

 30.15a 



30-075 

 30.067 

 30.196 

 30-346 

 =9-945 

 30-149 



30.138 

 29.740 

 29.940 

 30.182 

 30,366 

 30.425 



30-025 

 30-049 

 29.967 

 29-844 

 30-178 

 30-335 



29-816 

 29 790 



3o'.03i 

 29-962 

 30.164 



30-115 

 29-953 



39.930 

 29.674 

 39-678 

 29,846 

 39-805 

 39-945 



39-740 

 39-463 

 39,561 

 39,940 

 30.182 

 30-179 



39-872 

 39.872 

 39 794 

 39-777 

 29-844 

 30,I7» 



39-7S4 

 39 644 

 29 832 



29.863 



.066 



.145 

 •518 



,204 



-398 

 -377 



:?84 

 -346 



•153 

 077 

 -173 

 .067 

 .334 



-062 

 -348 



.130 



.301 



.3763 

 -4940 



.3040 



:26o8 



-4030 

 .2867 



-3560 

 ,4.78 

 ,2868 

 -2315 

 3363 

 .2592 



:4;78 



.3813 



:& 

 -1797 



•4913 



•3903 



■.lltl 

 -3493 



80-7 

 8.-3 



67.2 



61-2 



675 

 86,7 

 77-7 

 70,3 



85. 8 

 94 3 



ti 



8l'2 



65-7 

 80.3 



76 



SS^o 



45-3 

 53-7 

 40,8 



52-8 

 43-7 



58.0 

 54.7 



t\ 



60.8 

 53.8 

 5'-3 



B 

 58-5 



4<J-5 



49-2 

 36-2 



N, 

 N. 

 S. 



S. 

 S. 

 W. 

 B. 

 S W. 

 N.W. 

 S.E. 



S.E. 

 fa.E. 

 S.W. 

 S.W. 

 S.W. 

 S.E. 

 S.E. 



S. 

 N. 

 N, 

 S. 



S.W. 

 w. 



S.E, 



S.E. 

 S.E, 

 S,W. 



S. 

 S.E. 



S. 



27 



95 



63 

 97 

 77 



56 



fs 



36 

 23 



6 

 18 



Si 



34 

 93 



0.66 

 0-03 



o.'je 



1-56 



0.30 

 0-14 





0,66 

 0,03 



o'.'si 



0,05 

 0,14 



2 



4 

 6 

 8 



'3 



18 

 19 



E SUNDAY 



35 



26 



11 



3° 



Mcnns 



54-80 



63-15 



48-34 



14.80 



29.9646 



30.0717 



29-8455 



.3397 



•33B2 



76.92 



47.44 



s 18° W. 



14.67 



5-68 



43-17 



5.08 





5,08 







Tor and including 

 this month ' 



58-39 



66.47 



50.68 



■5-78 



30.0146 







.183 



-3752 



75-74 







s.2.85 



5-40 







II53-7 



3-26 





3.26 



C 25 Years means for 

 Knd including this 

 (month. 



a ANALYSIS OF WIND RECORD. | 



• Barometer readings reduced to sea-level and 

 temperature 32° Fahrenheit. 



S Observed. 



t Pressure of vapour in inohes of mercury. 



t Humidity relative, saturation being 100. 



H 18 years only, a 13 years only. 



The greatest heat wa-s 'T.6 on the 3rd : the 

 greatest cold was 36.°1 on the 30th giving a range 

 of temperature of 41.5 degrees. 



Warmest day was the 18th, Coldest day wm 

 the 23rd. Highest barometer reading was 30,425 on 

 the 16th. Lowest barometer was 29.463 on the 12th, 

 giving a range of 0.962 inches. Maximum rela- 



tive humidity was 99 on the 20th and 26th- Mini- 

 mum relative humidity was 34 on the 16th. 

 Rain fell on 17 days- 

 Lunar corona on the 2l8t- 

 Fog on 3 days. 



Thunderstorm on the 12th, during which bail 

 tell. 



Direction 



N. 



N.E- 



E. 



S.E. 



S. 



s.w. I w 



- 



N,\V, 



Calm, 



Mile 



1364 



19 



164 



2344 



2430 



2877 8, 



521 





Dumioninhrs.. 



100 



4 



.6 



■38 



■78 



176 57 



49 



2 



Mean velocity 



■3-64 



4-75 



10-25 



16.98 



■3-65 



16.3s 1 14-39 



.0,63 





Groatost miloago w one hour wus 32, uti tbe 

 loth. 



Oroalost volooity in gusts, 36 milos p6r liour 

 onthoaoth. 



Keaultnnt mileage, 4.DS0. 

 Resultant diroction, S- 18° \V. 

 Total mileage, 1U,66S. 













