METEOROLOGICAL TABLES. 



139 



MONTHLY METEOROLOGICAL SUMMARY, LANSING, MICHIGAN, JANUARY, I92I. 



Dale. 



Temperature. 



Highest. 



1. 



2 



3. 



4. 



5. 



6. 



7. 



8. 



9. 

 10. 

 11. 

 12. 

 1.3. 

 14. 

 1.5. 

 16. 

 17. 

 18. 

 19. 

 20. 

 21. 

 22. 

 23. 

 24. 

 25. 

 26. 

 ■27. 

 28. 

 29. 

 30. 

 31. 



Lowest. 



49 

 36 

 49 

 48 

 38 

 37 

 4.5 

 40 

 34 

 42 

 35 

 21 

 24 

 28 

 29 

 31 

 20 

 22 

 40 

 53 

 51 

 44 

 39 

 29 

 23 

 30 

 36 

 44 

 40 

 34 

 32 



33 

 29 

 28 

 36 

 29 

 29 

 34 

 20 

 17 

 23 

 20 

 10 

 10 

 22 

 20 

 17 

 7 

 6 

 15 

 40 

 41 

 33 

 26 

 12 

 12 

 12 

 13 

 22 

 26 

 26 

 16 



Mean. 



41 

 32 

 38 

 42 

 34 

 33 

 40 

 30 

 26 

 32 

 28 

 16 

 17 

 25 

 24 

 24 

 14 

 14 

 28 

 46 

 46 

 38 

 32 

 20 

 18 

 21 

 24 

 33 

 33 

 30 

 24 



Precipita- 

 tion in 

 inches. 



10 



T. 







T. 

 03 























T. 



T. 

 03 

 03 

 02 

 02 



T. 





 M 

 05 

 09 



T. 







T. 



T. 



T. 























Character of 

 day. 



Cloudy 



Cloudy ■. 



Clear 



Partly cloudy . 



Cloudy 



Cloudy 



Cloudy 



Clear 



Clear 



Partly cloudy . 

 Partly cloudy. 



Cloudy 



T'loudy 



Cloudy 



Cloudy 



Cloudy 



Cloudy 



Partly cloudy . 



Cloudy 



Cloudy 



Cloudy 



Cloudy 



Partly cloudy . 



Cloudy 



Partly cloudy. 



Clear" 



Partly cloudy. 

 Partly cloudy . 



Cloudy 



Cloudy 



Partly cloudy. 



Percent- 

 age of 

 possible 



sunshine. 











100 



44 







26 



5 



100 



100 



08 



37 



11 



3 







5 



3 



12 



79 







47 



3 







03 



17 



31 



82 



72 



41 











40 



This month since 1863. 



Mean highest temperature 36.2 



Mean lowest temperature .' 22 1 



Mean temperature for month 29 2 



Total precipitation for month 0.41 



We.xther. 



Number days clear '. 4 



Partly cloudy 9 



Cloudy 18 



With 0.01 or more of precipitation 9 



Sunshine. 



Number hours sunshine 98 8 



Possible hours sunshine '. 292 5 



Percentage of possible 34 



Year. 



1863 

 1864 

 1865 

 1866 

 1867 

 1868 

 1869 

 1870 

 1871 

 1872 

 1873 

 1874 

 1875 

 1876 

 1877 

 1878 

 1879 

 1880 

 1881 

 1882 

 1883 

 1884 

 1885 

 1886 

 1887 

 1888 

 1889 

 1890 

 1891 

 1892 

 1893 

 1894 

 1895 

 1896 

 1897 

 1898 

 1899 

 1900 

 1901 

 1902 

 1903 

 1904 

 1905 

 1906 

 1907 

 1908 

 1909 

 1910 

 1911 

 1912 

 1913 

 1914 

 1915 

 1916 

 1917 

 1918 

 1919 

 1920 

 1921 



Mean 

 tempera- 

 ture. 



22 3 



21 J 

 21.2 

 17.6 

 19 



29 4 

 25 4 

 24 8 

 21.6 

 15 9 

 27.7 



12 9 



30 2 



18 1 

 29 1 



19 2 

 37.1 



17 

 24 9 



14 4 



15 5 

 15 3 



18 8 

 18.2 

 15 4 

 28 



31 5 

 26.7 



19 2 

 14 8 

 26.9 

 17.5 

 24 6 

 22.3 



24 9 

 21.7 

 25.6 



22 2 

 20^5 



20 7 

 14.4 

 18.2 

 31.8 

 23.2 

 23.8 

 26.6 



23 4 



25 2 

 9.2 



26 2 

 27.0 

 20 4 

 27.6 

 21.0 

 10.2 

 28.5 



13 2 

 29.2 



Total 

 precipita- 

 tion. 



0.94 

 65 

 2.03 

 1.68 

 1.47 

 87 

 1.93 

 3.95 



42 



2 98 



3 .53 



1 81 

 1.63 

 1 33 



1 12 



49 



2 67 

 2.27 

 1.47 



1 .53 



1 23 



2 70 



2 66 



3 25 

 2 18 



1 .53 



2 31 

 82 



96 

 1.78 



1 37 



1 04 

 0.79 

 4.17 



3 07 



2 03 

 1.17 

 1.51 



43 

 1.20 

 2.82 



1 07 

 1 99 



3 97 

 1.89 

 2.16 

 2.52 

 1.43 

 80 

 3.10 

 2.98 

 1.54 

 3.11 

 1.55 

 2.08 



36 



1 34 

 0.41 



Barometer — Mean, 30.13 inches; highest, 30.96 inches, on 18th; lowest, 20.45 inches, on l.st. 



Temperatire — Highest, .53°, on 20th; lowest, 6°, on 18th; greatest daily range, 25°, on 19th; least daily range, 6°, on 14th; 

 normal for month, 22.7°; excess or deficiency this month, +6.4°; accumulated excess or deficiency since January 1st, +200°; 

 average daily, same period, +6.4°; highest in 36 years, 63°, lowest, — 26°. 



Precipitation (in inches) — Total amount, 0.41; normal, 2.09; excess or deficiency this month, — 1.68; since January 1st, • — 1.68; 

 greatest amount in any 24 hour period, 0.14, on 20th and 21st; total snowfall, 1.7. 



Wind — Prevailing direction, southwest; total movement, 5,902 miles; average hourly velocity, 7.9 miles; maximum velocity, 30, 

 from the northwest, on 16th. 



Dates of — Auroras, 0; dense fog, 0; sleet, 19; thunderstorms, 0; halos: solar, 10, 13, 27, 29; lunar, 19; frost: killing, — ; heavy, 

 — ; light, — . 



DEWEY A. SEELEY, 



Meteorologist 



