140 



STATE BOARD OF' AGRICULTURE. 



MONTHLY METEOROLOGICAL SUMMARY, LANSING, MICHIGAN, OCTOBER, 1921. 



Barometer — Mean, 29.96 inches; highest, 30.39 inches, on 14th; lowest, 29.52 inches, on 19th. 



Temperature— Highest. 75°, on 17th; lowest, 29°, on 13th; greatest daily range, 31°, on 13th; least daily range, 8°, on .30th; 

 normal temperature, 49.0°; departure, +1.5°; accimaulated departure since January 1, +1408°; average daily departure since 

 January 1, +4.6°; highest in 36 years, 90°; lowest, 10°. 



Precipitation (in inches) — Total this month, 2.85; normal, 2.23; departure, +0.62; since January 1, +0.06; greatest amount 

 in 24 hours, 1.28, on 0th and 7th; total snowfall, T. in. 



Win J — Prevaihng direction, southwest; total movement, 4,569 miles; average hourly velocity, 6.1 miles; maximum velocity, 

 20 miles per liour from northwest on 12th. 



Datk.s op— Auroras, 7; hail, 0; sleet, 0; fog— dense, 31; thunderstorms, 10; haln.s— .si}lar, 1, 20, 29; halos- lunar, 25; frost- 

 killing, 13; heavy, 0; light, 5, 12. 



DEWEY A. SEELEY, 



Meteorologist. 



