352 



NINETEENTH REPORT. 



Table II. 



U. S. Department of Agriculture^ Weather Bureau, 

 Charles F. Marvin, Chief. 



MONTHLY METEOROLOGICAL SUMMARY. 



Lansing, Michigan, July, 1916. 



a 



0) 



-M 



u o 



SUMMARY. 



1. 



2. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 

 10. 

 11. 

 12. 

 13. 

 14. 

 15. 

 16. 

 17. 

 18. 

 19. 

 20. 

 21. 

 22. 

 23. 

 24. 

 25. 

 26. 

 27. 

 28. 

 29. 

 30. 

 31. 



Ft. Cloudy 



Clear 



Clear 



Clear 



Clear 



Clear 



Clear 



Clear 



Clear 



Clear 



Clear 



Pt. Cloudy 



Pt. Cloudy 



Clear 



Pt. Cloudy 



Pt. Cloudy 



Clear 



Clear 



Clear 



Pt Cloudy 



Clear 



Pt. Cloudy 



Clear 



Clear 



Clear 



Clear 



Clear 



Pt. Cloudy 



Clear 



Clear 



Clear 



89 



78 



85 



100 



100 



99 



100 



95 



80 



100 



100 



84 



58 



100 



91 



94 



100 



100 



99 



68 



100 



89 



100 



100 



100 



100 



65 



76 



100 



79 



98 



Mean highest temp 89.5 



Mean lowest temp 62.7 



Mean temp, for month 76.1 



Total precip. for month. 0.09 



Weather. 



Number days clear 23 



Partly cloudy 8 



Cloudy 



With 0.01 or more of precipitation.. 2 



Sunshine. 



Number hours sunshine 424.1 



Possible hours sunshine 464.9 



Percentage of possible 91 



Barometer. 



Mean 30 . 00 inches 



Highest 80.22 inches, on 6th 



Lowest 29.68 inches, on 2nd 



Temperature. 



Highest, 102°, on 29th. 



Lowest, 52°, on 10th. 



Greatest daily range, 33°, 

 on 24th. 



Least daily range, 17°, on 

 20th. 



Normal for month, 70.9°. 



Excess or deficiency this 

 month, +5.2°. 



Accumulated excess or de- 

 ficiency since Jan. 1st, 

 — 134°; average daily, 

 same period, — 0.6°. 



Highest in 31 years, 102°; 

 lowest, 37°. 



Precipitation 

 (in inches). 



Total amount, 0.09; normal, 

 3.22; excess or deficiency 

 this month, — 3.18; since 

 Jan. 1st., 4-0.23. 



Greatest amount in any 24 

 hour period, 0.05, on 13th. 



Total snowfall, 0.0 in. 



Wind. 



Prevailing Dir., E. 



Total movement, 2,505 



miles; average hourly 



velocity, 3.4 miles. 

 Maximum velocity, 21, from 



the NW, on 2nd. 



Dates of — 



Auroras 



Dense fog 



Hail 



Sleet 



Thunderstorms, 2, 18, 15, 



16, 20, 22, 30. 

 Halos: solar, 1, 28. 



lunar 



Frost: killing 



heavy 



light 



