METEOROLOGICAL TABLES. 



145 



METEOROLOGICAL TABLES. 



Monthly Meteorological Summary, Lansing, Michigan, July, 1918. 



Barometer — Mean, 30.02 inches; highest, 30.20 inches, on 4th; lowest, 29.74 inches, on 1st. 



Temperautre— Highest, 94°, on 26th; lowest, 42°, on 31st; greatest daily range, 34°, on 19th; least daily range, 9°, on 16th: 

 normal for month, 70.9'^; excess or deficiency this month, —1.7°; accumulated excess or deficiency since Janaury 1st, —344®; 

 average daily, same period, —1.6°; highest in 33 years, 102°, lowest, 37°. 



Precipitation (in inches) — Total amount, 1.96; normal, 3.22; excess or deficiency this month, —1.26; since January 1st, —1.52; 

 greatest amount in any 24 hour period, 1.36, on 26th; total snowfall, 0.0 inches. 



Wind — Prevailing direction, southwest; total movement, 2,971 miles; average hourly velocity, 4.0 miles; maximum velo- 

 city 17, from northwest of 1st. 



Dates of— Auroras, 0; fog, dense, 0; hail, 0; thunderstorms, 2, 23, 24, 26, 29; Halos: solar, 3, 4, 5, 8, 13; lunar, 0; frost: killing, 

 0; heavy, 0;light,8,31. 



DEWEY A. SEELEY, 



Mbtioroloqiht. 



