120 



STATE BOARD OF AGRICULTURE. 



Meteorological ohscrvalions for lltc moni.h of December, 1912, al Agricultural College, East 



Lansing, Michigan. 



Atmospheric Pressure. — (Reduced to sea level; inches and hundredths.)— Mean, 29.95; highest, 30.41; date, 12; lowest, 

 29.40; date, 30. 



TE.\iPERATrRE. — Highest. 57; date, 5; lowest, 9; date, 12; greatest daily range, 27; date, 6; least daily range, 4; date, 16. 



WiM>. — PrcvaiHng direction, fouthwest; total movement, 6,962 miles; average hourly velocity, 9.4; maximum velocity (for ■ 

 five minutes) 28 miles per hour, from west on 6. 



We.\ther. — Number of days, clear, 7; partly cloudy, 7; cloudy, 17; on which .01 inch, or more, of precipitation occurred, 16. 



MiscELUNEOUs Phenomb:<\ (dates of^— .\urora,s] 0: halos: solar, 29-31; lunar, 26; hail.O; sleet, 0; fog, 0; thunder- 

 storms, 0. 'Frost: light. ; hcavv, ; killing, . 



Note. — "T" indicates trace of precipitation. 



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

 Mexico. 



DEWEY A. SEEl.EY, 

 Local Forecaster, Weather Bureau. 



