138 



STATE BOARD OF AGRICUL.TURB. 



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



Barometer— Mean, 30.04 inches; highest, 30.36 inches, on 21st; lowest, 29.54 inches, on 17th. 



Temperature— Highest, 88°, on 31st; lowest, 45°, on 15th; greatest daily range, 32°, on 24th; least daily range, 7°, on 27th: 

 normal temperature, 68.4°; departure, +0.2°; accumulated departure since January 1, +1216°; average daily departure sinc3 

 January 1, +5.0°; highest in 36 years, 102°; lowest, 32°. 



Precipitation (in inches)— Total this month, 5.18; normal, 2.63; departure, +2.55; since January 1st, —0.58; greatest amount 

 in 24 hours, 2.26, on 17th; total snowfall, 0.0 in. 



Wind — Prevailing direction, southwest; total movement, 3,055 miles; average hourly velocity, 4.1 miles; maximum veloc t/, 

 18 miles per hour, from northwest on 17th. 



Dates of— Auroras, 0; hail. 0; sleet, 0; fog— dense, 26, 28; thunderstorms, 6, 13, 17, 19, 27, 30; halns— solar, 9, 22; halus— 

 lunar. 15; frost-killing, 0; heavy. 0; light, 0. ^^^^^ ^ ^^^^^^^^ 



Meteorologist. 



