212 
GENERAL METEOROLOGICAL 
Provincial Magnetical Observatory, 
LATITUDE, 43° 39'.4 North. Lon@IruDE, 5 h.17 m.33s. West. ELEVATION ABOVE 
Jan. | Feb. |March.| April.| May. | June. 
: 23.83| 34.48] 39.55] 55.58| 63.16 
TAGULE ies esatraccssecceeseatentices * c is 3 a : 
Men erence from average (21 years) : . 0.00| + 4.19|— 1.38)/+ 3.95)+ 1.80 
Thermic Anomaly (Lat. 43° 40' N.) ......... — 9.42/—11.87|— 5.62/—10.65|— 2.57|— 1.44 
Highest Temperature .........cc0scsceeceeneeens , 50.2 | 67.0 | 61.8 | 74.5] 81.6 
Tavest Pemperature® ........ccceseesee eee aw -8|—8.5 | 12-8| 19.5] 82.5] 49-2 
Monthly and Annual Ranges 58.7 | 54.2 | 42.38 | 42.0 | 382.4 
Maximum Temperature............... || 29.83] 29.48] 41.89) 47.04) 63.97| 72.58 
Mean Minimum Temperature ............... 17.58} 15.82) 27.85} 382.19) 47.79) 55.33 
Mean Daily Ramge......secccsseessoeseees ees 12.25} 14.11) 14.54) 14.84) 16.18} 17.24 
Greatest Daily Range ...........2...-sscecreneee 30. 5| 26-5] 30.1] 25.6 | 24.6} 28.9 
Height of Barometer ..............- .||29.6429/29.6324/29.5111/29.5775/29.5659/29.4978 
eee inerstice from average (13 years) .........|| + -0181]+ .0199|— .1203|—. 0296|—. 0176|—. 0840 
ighest Barometer ..........csssceecsesceerseeee 30.142) 30.186] 29.984) 80.265) 29.886/29.859 
ane Barometer... -......seccesseeeee a 28.920} 29.044] 28.896] 29.088/28.909 
Monthly and Annual Ranges ........... 1.216] 0.890} 1.369) 0.798] 0.950 
ALN SA EAM Neg ON 2 aI 
: | | 
Mean Humidity of the Air.................sceeseeeee 81 | 71 «74 -76 | 71 
a aa aT RI a 
Mean Elasticity of Aqueous Vapour 11 148 335 a 414 
Mean of Cloudiness .............seceecseseesceesensenes | 0.71 | 0.67 | 0.49 | 0.59 | 0.57 | 0.58 
| 
Resultant Direction of the Wind........ ....||N 89 WIN 61 WIN 64 W|N 87 WIN 26 EIN 44 W 
Resultant Velocity of the Wind || 6.09 | 8.28 | 7.61} 4.10] 2.66] 3.18 
Mean Velocity (Miles per hour) ............]] 9.87 | 8.73 | 12.41 | 10.80 | 7.17 | 7.61 
Difference from average (13 years) ........ +1.62 }+0-85 |+38.97 |+2.51 |+0.75 | +2.40 
bry ea | lope 
Total Amount of Rain (in inches) ............... 0.740} 1.380} 0.882} 1.282} 1.815] 2.136 
Difference from average (20 and 21 years)}|—0.703) +0-273|—0.637|—1.153/—1.419|/—1.012 
Number of Days Rain ..............0ceceeeceonee 6 i DS ll 16 14 
| 
Total Amount of Snow (in inches)............... | 8.7 | 18.8 2.4 0.3 0.0 ; 
Difference from average (18 years) ......... — 4.54/+1.42 |—6.47 |\—1.96 |—0.0S 
Number of Days Snow............sccsescesconeee ie 13 11 5 0 
| a5 | as | 
Number of Fair Days ..........2...0..cs00e seaceenses il 11 | 17 15 | 15 | 16 
Number of Auroras observed. ...............66 cate 5 2 12 7 vi 2 
Possible to see Aurora (No. of Nights) ... 16 il 19 18 19 17 
| | | 
Number of Thunderstorms ...........c.ceeecceuces 0 1 0 af | 8 | 5 
* {n this table the averages with which the vearly means of temperature, the velocity of 
pared, all include 1860. In former tables the back years given for comparison were each 
