MICHIGAN ACADEMY OF SCIENCE. 



353 



Table III. 



U. S. Department of Agriculture, Weather Bureau, 

 Charles F. Marvin, Chief. 



MONTHLY METEOROLOGICAL SUMMARY. 



Lansing, Michigan, August, 1916. 



a 



O O 



SUMMARY 



1. 



2. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 

 10. 

 II. 

 12. 

 13. 

 14. 

 15. 

 16. 

 17. 

 18. 

 19. 

 20. 

 21. 

 22. 

 23. 

 24. 

 25. 

 26. 

 27. 

 28. 

 29. 

 30. 

 31. 



Clear 



Clear 



Cloudy 



Pt. Cloudy 



Clear 



Clear 



Pt. Cloudy 



Pt. Cloudy 



Clear 



Pt. Cloudy 



Cloudy 



Pt. Cloudy 



Clear 



Cloudy 



Pt. Cloudy 



Pt. Cloudy 



Pt. Cloudy 



Cloudy 



Pt. Cloudy 



Clear 



Clear 



Clear 



Clear 



Clear 



Clear 



Cloudy 



Clear 



Clear 



Clear 



Clear 



Pt. Cloudy 



96 



100 



44 



73 



76 



94 



52 



54 



100 



68 



38 



82 



100 



66 



75 



76 



87 



43 



100 



100 



100 



100 



98 



83 



94 







93 



92 



98 



98 



72 



Mean highest temp 84.2 



Mean lowest temp 57.9 



Mean temp, for month 71.0 



Total precip. for month 1 . 58 



Weather. 



Number days clear 16 



Partly cloudy 10 



Cloudy 5 



With 0.01 or more of precipitation. . 8 



Sunshine. 



Number hours sunshine 340.2 



Possible hours sunshine 430.7 



Percentage of possible 79 



Barometer. 



Mean 80.01 inches 



Highest 80.29 inches, on 1st 



Lowest 29.68 inches, on 24th 



Temperature. 



Highest, 98°, on 20th. 



Lowest, 41°, on 28th. 



Greatest daily range, 38°, 

 on 2nd. 



Least daily range, 11°, on 

 26th. 



Normal for month, 68.4°. 



Excess or deficiency this 

 month, +2.6°. 



Accumulated excess or de- 

 ficiency since Jan. 1st, 

 — 52°; average daily, 

 same period, — 0.2°. 



Highest in 31 years, 99°; 

 lowest, 32°. 



Precipitation 

 (in inches). 



Total amount, 1.58; nor- 

 mal, 2.63; excess or de- 

 ficiency this month, — 1.05; 

 since Jan. 1st, — 0.82. 



Greatest amount in any 24 

 hour period, 0.63, on 7th. 



Total snowfall, 0.0 in. 



Wind. 



Prevailing Dir., SW. 

 Total movement, 2,859 miles; 



average hourly velocity, 



3.8 miles. 

 Maximum velocity, 19, from 



the W, on 3rd. 



Dates of — 



Auroras 26 



Dense fog 



Hail 



Thunderstorms, 3, 4, 7, 8, 



10, 16, 18. 



Halos: solar, 4, 17, 18, 19, 



27, 31. 



lunar 



Frost : killing 



heavy 



light 28 



13 



