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STATE BOARD OF AGRICULTURE. 



Meteorological observations for the month of April, 1911, at Agricultural College, East 



Lansing, Michigan. 



Atmospheric Pressure. — (Reduced to sea level; inches and hundredths.) — Mean, 30.10; highest, 30.59; date, 10; lowest, 

 29.32; date, 5; 



Temper.'VTUre. — Highest, 75; date, 27; lowest, 10; date, 1; greatest daily range, 33; date, 26; least daily range, 9; date, 13. 



Precipitation. — Total this month, 2.11; snowfall, .05; greatest precipitation in 24 hours, .79; date, 4; Snow on the ground at 

 end of month, 0. 



Wind. — Prevailing direction, southeast; total movement, 5461 miles; average hourly velocity, 7.6; maximum velocity (for 

 five minutes) 28 miles per hour, from southwest on 5. 



We.^ther. — Number of days, clear, 11; partly cloudy, 5; cloudy, 14; on which .01 inch, or more, of precipitation occurred, 15. 



Miscell.\neous Phenomen-v (dates of). — .\uroras, 0; halos: solar, 10, 18, 26; lunar, 10, 11; hail, 0; sleet, 4; fog, 0; thunder- 

 storms, 13; *frost: light. 25, 26; heavy, 24; killing, 16, 17, 23. 



♦Frosts are not recorded after the occurrence of "killing," except in Florida and along the immediate coast of the Gulf of 

 Mexico. 



DEWEY A. SEELEY, 

 Local Forecaster, Weather Bureau. 



