METEOROLOGICAL TABLES. 



115 



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



Lansing, Michigan. 



Atmospheric Pressure. — (Reduced to sea level; inches and hundredths). — Mean, 30.02; highest, 30.63; date, 24; 

 lowest, 29.32; date, 30. 



TEMPER.4.TnRE.— Highest, 65; date, 21; lowest, 5; date, 15; greatest daily range, 38; date, 21; least daily range, 7; date, 28. 



Precipitation.— Total this month, 1. 21; snowfall, 4.3; greatest precipitation in 24 hours, .37, date, 26 and 27; snow on the 

 ground at end of month, 1.0. 



Wind. — Prevailing direction, northwest; total movement, 6543 miles; average hourly velocity, 8.8; maximum velocity (for 

 five minutes) 32 miles per hour, from northwest on 22. 



Wb.^ther. — Number of days, clear, 9; partly cloudy, 7; cloudy, 15; on which .01 inch, or more, of precipitation occurred, 14. 



Miscellaneous Phenomena (dates of).— Auroras, 0; halos: solar, 7, 9, 11, 19, 26; lunar, 8; hail, 27; sleet, 15; fog, 0; thun- 

 derstorms, 0. *frost: light, 0; heavy, 0; killing, 0; 



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

 Mexico. 



DEWEY A. SEELEY, 

 Local Forecaster, Weather Bureau. 



