204 PROCEEDINGS OF THE CANADIAN INSTITUTE. 
monthly maxima at Hamilton are higher than at Toronto, the 
monthly minima, from July to October, are very nearly the same at 
both places. The following tables show the average monthly maxima 
and minima at Hamilton and Toronto over a period of eight years 
(1874-81) :—- 
AVERAGE MONTHLY MAXIMA. 
| | | : 
| JAN. | Fes. | Mar. | Apr. | May. | June.| Jury.’ Ave. | Sepr. | Oct. | Nov. | Dec. 
| | | 
Hamilton. | 49°7 | 50°9| 582 72°0| 89°0| 91°0 | 93°9 | 94°0 | 90°3 | 81°6 | 64°3| 54°9 
! 
Toronto ..| 46:2) 445] 50°8! 660] 83°8| 862] 896] 87-4 | 84°3 | 713 | 57°4| 48°7 
| / | | 
AVERAGE MONTHLY MINIMA. 
Hamilton. | —0°1l | —1°6 6°3| 18°99 | SI°l) 42°2) 49:9) 47°4| 37°5 |) 26 iieaie 2°5 
Toronto... | —3°'l | —3°3 4°00} 166] 29:0} 40°4 | 492] 47°8 | 376 | 26°3 75 | —17 
The average yearly maximum at Hamilton is 96°.9, the average 
yearly minimum -—7°.4; the lowest temperature recorded in the 
eight years (1874-81) from which these averages are obtained was 
—20°.5; the highest 100°5. The absolutely highest temperature on 
record was 106°.3 (July, 1868), a degree of heat which has not 
been reached at New Orleans, or at Naples or Calcutta, in a period 
of at least 18 years. The average annual maximum is quite as high 
as at New Orleans or cities to the eastward along the Gulf of 
Mexico. 
The mean temperature of the different months at Toronto and 
Hamilton for the eight-year period mentioned is as follows :— 
' 
JAN. | FEB. MAR.| APR. May. | JUNE.| JuLy.| Aua. | Serr. | Oct. | Nov. | DEc. 
Hamilton. 244 | 24°6| 311] 42°] 57°7; 66°0| 73°3| 71°4| 63°9| 50°3| 37°1} 284 
| 
The mean of the year at Toronto is 44°74, and at Hamilton 47°47 
or 2°73 higher. The daily range in Toronto is about 13° in January, 
and nearly 20° in July, while at Hamilton the figures for these 
months are respectively about 20° and 27°. The average daily maxi- 
mum of July, at Hamilton, is above 84° in the shade, and not 79° in 
Toronto. In the warmest month ever recorded in Hamilton (July, 
