Lake Maxinkuckee, Physical and Biological Survey 129 



24, 28, 29, and 31 ; at 6 p. m. on December 9, 10, 11, 13, 14, 15, 28, 

 29, and 31. Thus the temperature in December, 1900, was at or 

 below freezing- at 6 a. m. on 19 days, at noon on 11 days, and at 6 

 p. m. on 9 days. In 1901, observations began on the eighth and 

 records at or below freezing were made at 6 a.m. on the 9th, 10th, 

 11th, 12th, 14th to 24th, both inclusive, and 28th and 31st, both in- 

 clusive; at noon on the 14th to 21st, both inclusive, and 29th and 

 31st; at 6 p. m. on the 9th to 12th, both inclusive, 13th to 23d, 

 both inclusive, 25th, and 27th to 31st, both inclusive. 



In 1902 freezing temperatures were recorded at 6 a. m, on the 

 1st, 2d, 4th, 6th to 9th, both inclusive; 12th to 19th, both inclusive; 

 23d, and 25th to 31st, both inclusive; at noon on the 4th, 7th to 9th, 

 both inclusive; 11th to 14th, both inclusive; 16th, 17th, 18th, and 

 24th to 31st, both inclusive ; at 6 p. m. on the 4th, 7th, 8th, 9th, 

 11th to 14th, both inclusive; 16th to 18th, both inclusive, and 24th 

 to 31st, both inclusive. It will thus be noted that in this month 

 the temperature was at or below freezing at 6 a. m. on 23 days, 

 at noon on 19 days, and at 6 p. m. on 19 days. In 1904 freezing 

 temperatures w^ere recorded at 6 a. m. on the 1st to 22d, both in- 

 clusive ; 24th, 25th, 26th, 28th, 29th and 30th ; at noon on the 1st 

 to 6th, both inclusive; 9th to 21st, both inclusive; 24th, 25th, 28th, 

 29th and 30th; at 6 p.m. on the 1st to 21st, both inclusive; 24th, 

 25th, 27th, 28th and 29th ; from which it is seen that in December, 

 1904, the temperature was down to freezing at 6 a. m. on 28 days, 

 at noon on 24 days, and at 6 p. m. on 26 days. In 1913, the tem- 

 perature was at or below freezing at 6 a. m. on December 8, 15, 19, 

 20, 21, 22, 23, 27, 28, 29, 30 and 31 ; at noon on December 7, 29, 30 

 and 31; and at 6 p.m. on December 7, 8, 18, 21, 25, 26, 28, 29, 

 30 and 31. 



The greatest daily range was as follows: 



December 8, 1899, from 29° to 54°, or 25°. 



December 12, 1900, from 14° to 35.3°, or 21.3°. 



December 18, 1901, from -13° to 54°, or 67°. 



December 9, 1902, from 4° to 23°, or 19°. 



December 13, 1913, from 34° to 54°, or 20°. 



Air Temperatures for December, 1898 



For this month there are only 4 records of air temperatures, 

 all at 6 a.m., viz.: 16° on the seventh, 5° on the eighth, 10' on 

 the ninth, and 5° on the fourteenth. 



