80 Lake Maxinkuckee, Physical and Biological Survey 



Sky: As shown by our records, March, in all the years rec- 

 ords have been kept, has shown an excess, sometimes inconsider- 

 able, sometimes considerable, of cloudy weather. During the years 

 1900, 1902 and 1903, the excess was not great, the month being 

 pretty evenly divided as to periods of cloudiness and clearness. In 

 the spring of 1901 this month was unusually cloudy, there being 

 3 times as many cloudy periods as clear ones. It is the abnormal 

 condition of this particular spring that makes the periods of cloudi- 

 ness during the 4 years studied sum up to more than twice as fre- 

 quent as the clear ones. 



Winds: North, east and south winds are relatively infrequent. 

 The winds from other directions vary from year to year in fre- 

 quence, but, taken as a whole, are so evenly distributed that none 

 can be called the prevailing wind. Most years this is rather a rude 

 boisterous month with few periods of calm. 



Storms: Rainstorms, the first of the spring rains, and snow 

 storms, are quite frequent. 



Temperatures: The total number of records for March is 

 370, as follows : 8 for 1899 ; 93 for 1900, 1901, 1902, and 1903. 



The lowest temperature recorded was zero, on March 17, 1900. 

 The highest was 73 on March 19, 1903. The extremes were as 

 follows : 



1900, March 17, and 52 March 9; range 52. 



1901, 5.5 March 6, and 64.8 March 25; range 59.3. 



1902, 10 March 17, and 65 March 19; range 55. 



1903, 18 March 1, and 73 March 19; range 55. 



Temperatures at or below freezing were recorded as follows: 

 In March, 1899, at 6 a. m. on the 12th, 22d, 23d, 24th, 28th, 29th 

 and 31st. The only other record was 50 on the llth. In 1900, 

 March furnished freezing temperatures at 6 a.m. on the 1st to 

 5th, both inclusive ; 7th to 10th, both inclusive ; 12th, 14th to 18th, 

 both inclusive; 20th, 21st, 22d, 24th, 25th, and 27th to 31st, both 

 inclusive ; at noon on the 1st, 5th, 6th, 12th, 14th to 17th, both in- 

 clusive; 20th, 21st, and 29th; at 6 p.m. on the 3d to 8th, both 

 inclusive ; llth, 13th to 17th, both inclusive ; 19th, 20th, 21st, 25th, 

 29th and 30th. The temperature was down to freezing at 6 a. m. 

 on 25 days, at noon on 11 days, and at 6 p. m. on 19 days. 



In March, 1901, freezing temperatures were recorded at 6 

 a. m. on the 1st, 5th, 6th, 7th, llth, 12th, 14th, 15th, 16th, 17th, 

 21st, 22d, 27th, 28th, 29th and 31st; at noon on the 5th, 6th, 20th 

 and 21st; at 6 p.m. on the 4th, 5th, 6th, 15th, 20th, 21st, 27th, and 

 28th. The temperature was at or below freezing on 16 days at 

 6 a. m., on 4 days at noon, and on 8 days at 6 p. m. 



