THE CLIMATE OF TORONTO
on six consecutive days the following temperatures were registered : 98°, 101°, 103°, 97°, 95° and 92°. The average warmest day of the year is July 15th, but the normal changes very little between July 5th and August 12th. The warmest summer on record was that of 1911, with a mean of 68°.8 ; the warmest June was that of 1895, with a mean of 67°.9 ; the warmest July that of 1868, with mean of 75°.8, and the warmest August that of 1900, with mean of 71°.6. The coolest summer was that of 1869, with a mean of 62.°2, and in this summer the temperature was over 80° on but five days.
The summer rainfall is quite evenly distributed, each month averaging a little under 3.00 inches. The greatest rainfall was 15.88 inches, in 1841, and the least was 1.95 inches, in 1899. The heaviest monthly rainfall in summer was 8.15 inches, in July, 1841, and the least a trace in August, 1876. The heaviest falls ever recorded were 3.45 inches during a thunderstorm on the 4th August, 1878, and 3.88 inches during a 22-hour rain in July, 1897.
The downward trend of the temperature curve is not rapid during the autumn, and it is not until October 7th that 50° is reached, and November 26th is the average date on which mean temperature drops to the freezing point. The warmest autumn was that of 1908, with a mean of 51°.6, and the next warmest, 1912, with a mean of 51°.2, in each year the three months being above average. The warmest September was that of 1881, with a mean of 67°.8 ;