ESTIMATION OF THE DATES OF HATCHING OF EGGS, ETC. 429 



occurred, and on how many days the air-miuima were above 50^. In a 

 second table we shall give the average daily duration in hours of the 

 period during which the average soil temperatures above 50° will ave- 

 rage 60°. 



The following tables, for September, 1875, to June, 187G, are princi- 

 pally based on data published in the Annual Eeports of the Chief Sig- 

 nal Officer : 



Table showing the number- of days in ivhich the maximum and minimum air temperatures were 



within certain limits. 



rORT GAEET, MANITOBA. 





Number of days. 





1 



ft 



1 



a 



1 



o 



i 



t-s 



a 



1 



ft 



p 

 ^ 



d 



1-3 



Maximum temperatures -were under 

 50=> 



3 



7 

 8 

 9 

 2 



1 



23 

 2 

 4 



1 

 1 

 



30 

 

 





 

 



31 

 

 

 

 

 



31 





 

 

 

 



29 

 

 

 

 

 



31 

 

 

 

 

 



19 

 7 

 3 

 1 

 

 



4 

 5 

 10 

 5 

 6 

 1 



2 



Between 50° and 59° 



3 





4 



Between 70^ and ?9° . 



12 





6 



Over 89^ 



3 







The minimum temperatures were 

 above 49° as follows .. ..... 



5 































4 



15 







Monthly mean temperatures 



520.3 



36°. 6 



8°. 9 



50.7 



-40.3 



-6° 4 



8°. 7 



350.9 



52°. 8 



60°. 



BRECKINRIDGE, MIXX. 





Number of days. 



• 



1 

 1 



ft 



1 



1 



1 







i 

 P 



1 



1 



S 



1 



ft 



i 



6 



1 



Maximum temperatures \rere under 

 50° 



1 



5 



11 



9 



3 



1 



13 

 8 

 3 

 5 

 2 

 



24 

 5 

 1 

 

 

 



31 

 

 

 

 

 



31 

 

 

 

 

 



29 

 

 

 

 

 



31 

 

 

 

 

 



17 



• 6 

 6 

 1 

 

 



2 

 7 

 8 

 5 

 9 

 









3 



Between C0° and 69° 



6 



Between 70° and 79° 



12 



Between 80° and 89° ... 





ver 89° 



4 







The minimum temperatures were 



8 































8 



14 







Monthly mean temperatures 



550.4 



4^0.0 



18°. 3 



18°. 



63.3 



40.3 



10°. 5 



330.3 



5C0.3 



630.1 



