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H. MOHN. METEOROLOGY. [2nd. arc. exp. fram 



Mean number of days with a temperature below — 40° for the whole year, 

 34. A temperature below — 50° was observed only on the 19'^^ and 

 20* of January, 1901. 



The highest absolute temperatures are: 



In the months May to September, the temperature may rise above 

 zero. The absolute maximum temperature found is 13.3 in July, 1902, 

 in the last winter quarters. February has remarkably high maximum 

 temperatures, particularly in 1900, when there was a succession of tem- 

 peratures above zero in the evening of the 9'^ and the morning of the 

 10*, with southerly wind. 



Days with a temperature above 10°: 



Mean number of days with a temperature above 10° for the whole 

 year, 5. 



o o 



The absolute range of the temperature becomes 13.3 + 51-3 or 



o 



64.6. The respective dates are July 9*, 1902 (pressure 756 mm., 

 Wind SE, 6 m. p. s.), and January 20* 1901 (pr. 750 mm. N. 6 m. p. s.). 

 The differences between the mean highest and lowest temperatuies 

 in each month are 



