NATURAL HISTOKY, TORONTO REGION 



the vast American forests. It would appear that 

 both Summer and Autumn are a little warmer, and 

 that Winter is colder than in the earlier days of 

 settlement, while the Spring average temperature 

 shows little or no change. 



Considering the seasons from a popular stand- 

 point, the writer believes that their duration might 

 be stated as follows: 



Spring March 10th to May 20th. 

 Summer May 21st to September 10th. 

 Autumn September llth to November 25th. 

 Winter November 26th to March 9th. 



The first part of March is usually rather cold, 

 but days of bright sunshine and swelling buds, 

 together with the rapid disappearance of the snow, 

 which now lies only in patches in sheltered places, 

 give omen of spring, which soon comes on apace. 

 The maple tree has bloomed as early as March 20th, 

 and a few hardy plants may occasionally be founc 

 in bloom ten days later. A few migrating birds will 

 also appear after the middle of the month, and by the 

 31st, when the ground exposed to the sun is usually 

 free of frost, ploughing is frequently possible. 



The months of March 1903 and 1910 showed 

 the largest positive departures from average for 

 months of that name, the latter especially being 

 characterized by an extraordinary warm spell during 

 the last week, when temperatures of over 70 were 

 recorded. 



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