234 



STATE BOARD OF AGRICULTURE. 



Monthly Meteorological Summary, Lansing, Michigan, December, 1916. 



Date. 



Temperature. 



Highest. 



Lowest. 



Mean. 



Precipita- 

 tion, in 

 inches. 



Character of 

 day. 



Percent- 

 age of 

 possible 

 sunshine. 



This month since 1804. 



1 



8. 

 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 



33 

 32 

 32 

 31 

 33 



32 

 35 

 36 

 31 

 28 



28 

 28 

 32 

 23 

 30 



32 

 35 

 32 

 26 

 21 



27 

 38 

 39 

 33 

 31 



29 

 32 

 26 

 30 

 29 

 35 



23 

 19 



14 

 11 



20 



15 

 14 

 31 

 20 

 15 



15 

 22 

 20 

 14 

 11 



16 

 29 

 22 

 20 

 18 



18 

 22 

 33 

 30 

 11 



13 

 22 

 8 

 11 

 20 

 23 



28 

 26 

 23 

 21 

 26 



24 

 24 

 34 

 26 

 22 



22 

 25 

 26 

 18 

 20 



24 

 32 

 27 

 23 

 20 



22 

 30 

 36 

 32 

 21 



21 

 27 

 17 

 20 

 24 

 29 



0.03 

 

 

 

 





 

 0.01 

 

 







0.17 



0.03 











0.04 

 02 



e.oi 



0.02 

 0.02 



0.03 

 0.01 

 0.05 

 0.32 

 0.15 





 

 

 

 

 0.10 



Cloudy 



Clear 



Clear 



Clear 



Partly cloudy.. 



Partly cloudy.. 



Cloudy 



Cloudy 



Cloudy 



Cloudy 



Cloudv. 

 Cloudy. 

 Cloudy. 

 Clear.. 

 Clear.. 



Cloudy. 

 Cloudy. 

 Cloudy. 

 Cloudy. 

 Cloudy. 



Cloudy 



Partly cloudy. 



Cloudy 



Cloudy 



Cloudy 



Cloudy 



Cloudy 



Clear 



Partly cloudy . 



Cloudy 



Cloudy 



9 



82 



67 



100 



48 



87 







8 



48 



63 



5 







36 



97 



100 



7 

 

 

 1 

 



24 



53 











50 



39 



7 



100 



49 



60 



7 



Mean highest temperature. . . . 



Mean lowest temperature 



Mean temperature for month. 

 Total precipitation for month. 



Weather 



Number days clear 



Partly cloudy 



Cloudy 



With 0.01 or more of precipitation. 



Sunshine 



Number hours sunsliine . 

 Possible hours sunshine. 

 Percentage of possible. . . 



30 9 

 18.7 

 24.8 

 1.01 



6 



4 



21 



15 



104.0 



280.8 



37 



Barometer — Mean. 30.04 inches; highest, 30.54 inches, on 6th; lowest, 29.47 inches, on 17th. 



Temperature — Highest, 39°, on 23rd; lowest, 8°, on 28th; greatest daily range, 21°, on 7th; least daily range, 3°. on 20th; 

 Normal for month, 26.8°; excess or deficiency this month, —2.0°; accumul.ited excess or deficiency since January 1st, —211°; 

 average daily, same period, —0.6°; highest in 30 years, 62°; lowest, —24°. 



Precipitation (in inches) — Total amount, 1.01; normal, 2.08; excess or deficiency this month, —1.07; since January 1st, 

 + 1.33; greatest amount in any 24 hour period, 0.47, on 24th and 25th; total snowfall, 11.0 inches. 



Wind — Prevailing direction, southwest; total movement, 4,814 miles; average hourly velocity, 6.5 miles; maximum velocity, 

 21, from the northea,st, on 29th. 



Dates of— .\uroras, 0; dease fog, 0; hail, 0; sleet, 0; halos: solar, 5, 6, 13, 15, 16, 21, 30; lunar, 11, 15. (Frosts not recorded.) 



DEWEY A. SEELEY, 



Local Forcaster. 



