ikdIIETEOIR.OLOa-IECJLI-i ABSTRACT IFOIR, THE YEAS 1890. 



Observations made at McGill College Observatory, Montreal, .Canada. — Height above sea level 187 ft. Latitude N. 45° 30' 17". Longitude 4 h 54 m 18 s 55 W. 



C. H. McLEOD, Superintendent. 





Thermometer. 



* Barometer. 





1° 





I 



Wind. 



„ 



3 a 

 I- 8 



Ja 



ga 





11= 

 I " 



| 



J J a 



.-—2 



£*5 



|fl 





Month. 



1 

 ■si 



1T Bevia- 

 liou t'roin 

 16 year 



a 



g 



gig 



& 



1 



s 



S-ag 



Resultant 

 direction. 



Mean 



velocity 



i* 



Month. 



March 



April 



May 



1488 



1:1 ns 

 a;. si 

 40 01 

 51.59 

 lil 45 

 IIS 57 

 lil 82 

 57 79 

 (5.85 

 .11. 71 

 7.14 



+ 3.07 

 + 3.6U 

 + 2.64 

 + 0.41 



— 2.99 



— 0.01 



— 0.4a 



— 2.14 

 -0.72 

 + 0.7a 



— 0.34 

 -11. 15 



52.3 

 45.0 

 43.0 

 66.9 

 74.1 

 85 3 

 SS 6 

 88.8 

 80.0 

 71.7 

 55.0 

 35.4 



— 21.6 



— 9.1 



— 4.0 

 21.1 

 28.3 

 40.8 

 49.4 

 47.4 

 33. 1 

 30.7 



9.0 



— 15.0 



17.34 



10 05 

 13 67 

 16.615 

 16.81 

 17.25 

 17 52 

 16 11 

 14.79 

 11.75 

 13.49 

 15 91 



30.1399 



Mil 11184 

 29 9 ,6) 

 oil IU15 

 29 8991 

 29 9ll)i 

 29 11251 

 29 9.V.I5 

 :;:l. 11781) 

 29 "IIII3 

 29 972) 

 30.0718 



30.717 



30.702 

 .'ill .'.Dl 

 81.1 158 

 3D 311 

 .'ill 2711 

 .')0. 259 

 .'ill 21)1 

 811. 4511 

 .81) 898 

 88 448 

 30.677 



29 201 



29 1192 

 29.229 

 29 2211 

 29 558 

 29 1132 

 29.8H1 

 29.588 

 29.851) 

 29.847 

 29 515 

 29.326 



.400 

 .400 

 243 

 .236 

 .195 

 .160 

 .143 

 .178 

 .160 

 .179 

 .283 

 .372 



.0824 

 1(125 

 1158 

 1584 

 2664 

 .4252 

 .4915 

 .44119 

 9316 

 2583 

 .1430 

 .0555 



79 6 



80 4 

 71.9 

 60.1 

 68.7 

 69.7 

 i/i ii 

 71) 8 

 77.9 

 80.7 

 76.8 

 79.8 



9.5 

 13.8 

 18.5 

 26.5 

 40.7 

 53.4 

 57.7 

 51 5 

 50 5 

 39.8 

 25 2 



1.8 



N. 75° W. 

 S. 52° W. 



18. 55° W. 



s. or \v. 



8. 38° w. 

 S. 8j° W. 

 S. 39° W. 

 S. 83° W. 

 S. 49'-' \V. 

 i\'.3ii° W. 

 S. 68° W. 

 S. 81° W. 



19.6 

 18.6 

 16- 9 

 17.9 

 14.0 

 12.2 

 12.6 

 11.3 

 11.3 

 9.5 

 14.9 

 ..16.4 



64.6 



63 5 

 62 8 

 49. S 

 65.4 

 60.7 

 59.4 

 50.8 

 57.5 

 72.5 

 67.4 

 58.9 



33.8 

 44.9 

 45.9 

 56.8 

 42 3 

 57.2 

 58.4 

 58.1 

 51.6 

 33.8 

 36.5 

 41.9 



1.64 

 2.85 

 0.48 

 1.80 

 4.85 

 2.72 

 2.78 

 8.08 

 3.57 

 2.69 

 2.46 

 0.05 



7 

 10 



5 

 12 

 18 

 14 

 17 

 20 

 11 

 15 

 13 



1 



31.3 

 27.4 

 11.7 

 3.0 



. 8.'8 

 32.3 



21 

 12 

 12 



io 



19 



4.40 

 4.45 

 1.53 

 2.11 

 4.85 

 2.72 

 2.78 

 8.08 

 3.57 

 2.69 

 3.32 

 2.79 



A 

 2 

 2 

 2 



"i 

 1 



24 

 20 

 15 

 15, 

 18 

 14 

 17 

 20 

 11 

 15 

 19 

 19 



February 



Vlarch 



April 



May 







September 



October 



November 



September 



December 



Sums furJtfin 

 Means for 1890 . . 



U\03 



— '6 .'go 







15.69 



29.991)4 







!246 



.2433 



73. S 



32.7 



S. 66° W. 



ii.'eo 



61 .'i 



46.8 



33.97 



143 



114.5 



79 



13 29 

 3.61 



15 



207 Sums for 1890.. 

 17 Means for 1890... 



Means for 16) 

 years t..|„liiijA 

 Dec. 31. I*"!" \ 



41.63 











29.9765 









■ 2493 



74.4 







*15 34 



61.4 



§46-1 



28.13 



134 



124.6 



84 



40.25 



15 



202 



\ Means for 16 

 < years ending 

 ( Bee. 31, 1890. 



ha 



•Barometer readings reduced, to 32". Fall, and t.. sea level, t Inches of mercury, i Saturation, 100. § For 9 years only. * For 4 years only. IT "+" indicates that the temperature has been higher; "-"that it has been 

 reragetor 16 years, inclusive ol 1890. file u tbly means are derived from readings taken every 4th hour, beginning with 8h. Ilui. Eastern Standard time. The anemometer and wind lane are mi the summit 



of Mount Royal, 57 feet above the ground, and 810 feet, a lime sea level. 



The greatest heaty was 88.8 on August 4th; greatest cold 21.6below zero on January 10th ; extreme range of temperature was therefore 110°. 4. Greatest range of the thermometer in onedayv 



'"•'"Y ""' ".,'.':" ''■ |, 1 - -'"'• 'I"' warmest day was July l.-t . who., ilie mean leni|.e re was 711 45. The eldest day was. Ian. loth, when llie mean tel r re was 15 73 below /.em. Tlie highest ha 



■i January .311 I lie liiwesl was 29 092 on l'ebruary nth, giving a ranee oi'l .1)25 tor the year. Tile I..W0M relative humidity wa- 15 on April loth. The -real esi mi lease of wind ret ' 



li.u'tireulo.-l velocity i„ gusls was at the rate of 111! in. p. b. The total mileage of will. I was 127.018. The res., haul direct eai of the wind lor year ice S. mis IV.. and the re- nt 



I.eeiK. J ' : 'i"''-; l 7' l;l ' V o', ' " ,n ' lr0M "" ,'8 days, funnier storm- on 20 .lavs. Luna, bale.- .... 13 nights. Lunar corona.- on 1 „igl,|. Solar l.alos .... Ida,-- and contact 



tuo city, on April 1st. Ihe lirst appreciable snowfall ol the autumn was on November 91 h. The first sleighing ot the winter 

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



hour was lb on .l.ltiuarv liitl d 



ileage 50.720, Auroras were observed on 18 

 e day. The sleighing ..) the winter closed, in 



. Leeeuiber 3rd. There was a slight car fh..|. lake on Se). I ember 2. oh, at 3 h. 3 i 



