AT TORONTO, FOR THE YEAR 1861. 



99 



TEMPERATURE. 



Mean temperature of the year . 



Warmest month 



when the mean temp, of the month was 



Coldest month 



when the mean temp, of the month was 



Difference between the warmest and ) 

 coldest months ) 



Mean of deviations of monthly means, 

 from their respective averages of 22 

 years, signs of deviation being disre- 

 garded 



Month of greatest deviation without re- 

 gard to sign 



when the monthly mean differed from 

 the 22 years' average of the same 

 month by 



Warmest day 



1861. 



44022 



August. 



65". 48 

 January 



19". 86 



Average 



of 

 22 years. 



Extremes in 22 

 years. 



when the mean of the day was . 

 Coldest dav 



when the mean of the day was . 



Highest temperature 



which occurred on 



Lowest temperature . 

 which occurred on 



Range of the year. 



Aug. 3 



74°. 20 

 Feb. 7 



—7°. 7 



870.8 



June 9 



—20". 8 

 Feb. 8 



108". 6 



44. "12 



July. 



66°. 85 



February 



22°. 98 



43°. 87 



.44) 



January. 



3". 9 



July 20 



77". 28 

 Jan. 24 



— 0".87 



90". 4 



July 22 



-12". 3 

 Jan. 25 



102". 7 



460.36 42°. 16 

 (in 1846) (in 1856.) 

 Julyl854 Augl860 



72". 47 64". 46 

 Jan. 1857 Feb. 1848 



12°. 75 26°. 60 



3°. 55 

 (in 1843 

 andl857) 



Jan. 1857 



10°. 7 



July 12 



(1845.) 



82"32 



Feb. 6, '55 



Jan 22'57 



—14". 38 



99". 2 



Aug. 24 



(1854.) 



—26". 5 



Jan. 26 



(1859.) 



118". 2 



(in 1855.) 



1°.36 



in 



1853.) 



July 31» 



(1844.) 



72". 75 



Dec. 22 



(1842.) 



+9°. 57 



82". 4 



Aug. 19 



(1840.) 



+ 1".9 



Jan. 2 



(1842.) 



87°. 



(in 1847.) 



There were twenty-seven days when the mean temperature of the 

 day differed 12° and upwards from the normal mean of the day. 

 Their distribution among the several months may be seen in the fol- 

 lowing table : 



• The mean temperature of the warmest day in the foregoing table, refers to the twenty- 

 two years average of the warmest days in each year, irrespective of their dates, the average 

 date being simply the aritlimetic mean of the several dates measured from any fixed epoch. 

 The same remark applies to the coldest day, and to tlie maxima and minima of the year. 

 As regards the low temperatures, the averages are derivid from the coldest days and lowest 

 temperatures in successive winters, — December being couiidered to belong to the following 

 ye&r. 



