138 STATE BOARD OF AGRICULTURE 



MONTHLY METEOROLOGICAL SUMMARY, LANSING, MICHIGAN, DECEMBER, 1922 



Barometer— Mean, 30.08 inches; highest, 30.59 inches, on 6th; lowest, 29.55 inches, on 8th. 



Temper.\ti!RE— Highest, 57°, on 1st; lowest, 2°, on 18th; greatest daily range, 34°, on 8th.; least dady range, 3°, on 24th; 

 normal temperature, 26.8°; departure, —0.6°; accumulated departure since January 1, -f 621°; average daily departure since 

 January 1, +1.7°; highest in 37 years. 62°; lowest. — 24°. 



Precipitation (in inches)— Total this month, 1.03; normal, 2.08; departure, —1.05; since January 1, —3.00; greatest am:unt 

 in 24 hours, 0.29, on 4th; total snowfall, 4.3 in. ■ i ■ . 



Wind— Prevailing direction, west; total movement, 5,499 miles; average hourly velocity, 7.4 miles; maximum velocity, 24 

 miles per hour, from west, on 12th. 



Dates of— Auroras, 0; hail, 0; sleet, 0; fog, dense, 7, 26; thunderstorms, 0; halos, solar, 16, 20, 26, 30; halos, lunar, 26, .50; 

 frost, killing, 0; hea^T, 0; light, 0. ^^^^^ ^ ^^^^^^.^ 



Meteorologist. 



