Lake Maxinkiickee, Physical and Biological Survey 



85 



April 



Sky: — Of 39 observations of the sky made in April, 1900, we 

 have 24 records of clear and 15 cloudy ; of 89 in 1901, 33 recorded 

 the sky as clear, 56 as cloudy; of 31 in 1902, 15 noted clear, and 16 

 cloudy; and of 71 in 1903, 39 records gave clear and 32 cloudy, 

 making- a total of 111 records clear and 119 cloudy, the weather 

 being pretty evenly divided in this particular, there being a few 

 more cloudy periods than clear ones. 



Generally, this month shows a very even balance between pe- 

 riods of clearness and of cloudiness, the month for 1900 showing 

 a greater number of clear periods than cloudy, the spring of 1901 

 showing the reverse, and April of 1902 and 1903 being very little 

 different. For the whole 4 years there are 8 more cloudy periods 

 than clear ones. 



Winds: — Generally speaking, calm periods are rare in April, 

 none at all being recorded in 1900, 1902 and 1903. In 1901 it was, 

 however, unusually calm, there being 19 periods of calm recorded. 

 As to direction, winds are pretty equally divided ; so much so that 

 taking year after year, one cannot speak of any marked tendency 

 toward a prevailing wind from any particular direction; the rec- 

 ords are as follows : 



There are fewer west winds than any other, and more north- 

 east than any other, the others being well distributed. The north- 

 east winds generally bring cool weather and storms. It is gen- 

 erally a boisterous month, with but few calms. 



Storms: — Both snowstorms and rainstorms are rather frequent. 



As compared with other months, rain storms are usually rather 

 infrequent; we have a lecord of 3 rainstorms for 1900, of 6 for 

 1901, of 4 for 1902. In 1903 it was unusually wet, there being 11 

 periods of rain recorded for April of that year. There are occa- 

 sional snowstorms; we have 4 recorded for 1900, 1 for 1901, and 

 .75 inch for 1902. There was one sleet storm in 1900. Five 

 records of frost in 1901, and one hailstorm in 1903. 



The following table shows the general weather conditions for 

 April : 



