METEOROLOGICAL TABLES 135 



MONTHLY METEOROLOGICAL SUMMARY, LANSING, MICHIGAN, SEPTEMBER, 1922 



Barometer— Mean, 30.12 inches, highest, 30.47 inches, on 17th; lowest, 29.81 inches, on 2nd. 



Temperature— Highest, 94°, on 8th; lowest, 36°, on 25th; greatest daily range, 41°, on 29th; least daily range, 10°, on 14th; 

 normal temperature, 6.16°; departure, -f-2.7°; accumulated departure since January 1, -|-449°; average daily departure since 

 January 1, -|-1.7°; highest in 37 years, 99°; lowest, 21°. 



Precipitation (in inches)— Total this month, 2.93; normal, 2.62; departure, -|-0.31; since January 1, — 1.58; greatest amount 

 in 24 hours, 1.37, on 13th and 14th; total snowfall, 0.0 in. 



Wind — Prevailing direction, southwest; total movement, 2,462 miles; average hourly velocity, 3.4 miles; maximimi velocity, 

 14 miles per hour from northwest on 24th. 



Dates of — Auroras, 16; hail, 0; sleet, 0; fog, dense, 14; thunderstorms, 1, 6, 7, 9, 10; halos, solar, 17; halos, lunar, 0; frost, 

 kilUng, 0; heavy, 25, 26; light, 27. 



DEWEY A. SEELEY, 



Meteorologist. 



