142 STATE BOARD OF AGRICULTURE. 



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



Date. 



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 



28 



27 



28 



29 



30 



31 



Temperature. 



Highest. 



53 

 54 

 32 

 38 

 35 

 39 

 33 

 32 

 30 

 44 

 38 

 32 

 32 

 33 

 34 

 46 

 53 

 32 

 32 

 40 

 27 

 23 

 28 

 24 

 24 

 27 

 27 

 34 

 33 

 36 

 38 



Lowest. 



34 

 31 



29 

 25 

 27 

 24 

 23 

 27 

 26 

 30 

 29 

 28 

 26 

 24 

 21 

 30 

 32 

 22 

 21 

 23 

 9 

 8 

 23 

 10 

 3 



15 

 12 

 13 

 13 

 20 

 23 



Mean. 



44 

 42 

 30 

 32 

 31 

 32 

 28 

 30 

 28 

 37 

 34 

 30 

 29 

 28 

 28 

 38 

 42 

 27 

 26 

 32 

 18 

 16 

 26 

 17 

 14 

 21 

 20 

 24 

 23 

 28 

 30 



Precipita- 

 tion in 

 inches. 



30 

 48 





 03 

 03 











T. 







T. 

 09 

 28 

 06 

 03 

 01 



69 



1 43 

 05 







T. 



T. 



T. 

 01 

 03 



T. 



T. 



T. 







T. 



T. 

 02 



Character of 

 day. 



Cloudy 



Cloudy 



Cloudy 



Partly Cloudy 



Cloudy 



Partly Cloudy 



Cloudy 



Cloudy 



Cloudy 



Cloudy 



Cloudy 



Cloudy 



Cloudy 



Cloudy 



Partly Cloudy 



Cloudy 



Cloudy 



Partly Cloudy 

 Partly Cloudy 

 Partly Cloudy 

 Partly Cloudy 



Cloudy 



Cloudy 



Cloudy 



Partly Cloudy 



Cloudy 



Cloudy 



Cloudy 



Partly Cloudy 

 Partly Cloudy. 

 Cloudy 



Percent- 

 age of 

 possible 

 sunshine. 



3 

 1 

 



48 



11 



27 



1 











27 



11 











23 



69 











51 



37 



67 



47 











6 



49 















80 



67 







Mean highest temperature 34 , 9 



Mean lewest temperature 22 



Mean temperature for month 28 4 



Total precipitation for month , 3 54 



Weather. 



Number days clear 



Partly cloudy 10 



Cloudy , 21 



With 0.01 inch or more of precipitation 15 



Sunshine. 



Number hours sunshine 56 4 



Possible hours sunshine 280 8 



Percentage of possible 20 



This month since 1863. 



Total 

 precipita- 

 tion. 



1 71 

 3 20 

 1 43 

 1 90 

 1 34 



35 

 11 



57 

 .76 

 06 

 02 



37 

 2 80 

 1.29 



1 03 



2 27 



3 55 



85 



1 75 

 88 



28 



15 



14 



56 



32 



.20 



61 



.12 



1.47 



1 52 



2.28 



0.93 



5.39 



80 

 2.02 

 1.42 



1 51 

 0.50 

 3.00 



89 

 75 

 42 

 54 

 85 

 19 

 08 

 91 

 28 

 58 



1 20 



55 



1 57 

 1.01 



2 11 

 74 



3 61 

 86 

 3 94 

 3.54 



Barometer — Mean, 30.00 inches; highest, 30.51 inches, on 25th; lowest, 29.17 inches, on 2d. 



Temperature — Highest, 54°, on 2d; lowest. 3°, on 25th; greatest daily range, 23°, on 2d; least daily range, 3°, on 3d; normal 

 temperature, 26.8°; departure, +1.6°; accumulated departure since January 1, +1415°; average daily departure since January 

 1, +3.9°; highest in 36 years, 62°; lowest, -24°. 



Precipitation (in inches) — Total this month, 3.54; normal, 2.08; departute, +1.46; since January 1, +3.17; g"e.atest amount 

 in 24 hours, 1.43, on 17th; total snowfall, 8.3 in. 



Wind — Prevailing direction, northwest; total movement, 5,622 miles; average hourly velocity, 7.6 milos; ma-;imum velocity, 

 28 miles per hour from northwest on 31st. 



Dates of — .Auroras, 0; hail, 0; sleet, 18, 23; fog — dense, 0; thunderstorms, 0; halos — solar, 4, 14, 15, 22, 30; halos — lunar, 

 15; frost — kilHng, — ; heavy, — ; light, — . 



DEWEY A.SEELEY, 



Meteorologist. 



