POE THE YEAR l! 



BELATIVE HUMIDIXY. 



1868. 



of 



26 years. 



MeaD humidity of the year 



Month of greatest humidity 



Greatest mean monthly humidity 



Month of least humidity 



Least mean monthly humidity ... 



76 



December. 



83 



July. 



69 



77 

 January. 



83 



82 in 1851. 

 Jan. 1857. 



Feh. 1843. 



58 



73 in 1858. 

 Dec. 1858. 



81 

 April, 1849. 



76 



EXTENT OP SKY CLOUDED. 



1868. 



of 

 15 years. 



Extremes. 



Mean cloudiness of the year 



Most cloudy month ...: 



Greatest monthly mean of cloudiness 



Least cloudy month 



Lowest monthly mean of cloudiness .. 



0.64 

 November. 

 0.78 

 June. 

 0.51 



0.60 



November. 



0.74 



August. 



0.48 



0.65 in 1864 



oVss 

 o'.io 



0.57 in 1856. 

 o'.'73 



o'.'so 



"WIND. 



of 

 20 jears. 



Extremes'. 



Resultant direction 



Resultant velocity in miles 



Mean vfclocity, without regard to direction 



Month of greatest mean velocity 



Greatest monthly mean velocity 



Month of least mean velocity 



Least monthly mean velocity 



Day of greatest mean velocity 



Greatest daily mean velocity 



Day of least mean velocity 



Least daily mean velocity 



Hour of g:eatest absolute velocity < 



Greatest velocity 



N. 57° W. 



1.47 



7.69 

 February. 



10.84 



July. 



4.66 

 March 21. 



28.63 

 March 9. 



1.37 



April 8. 



2 to 3 p.m. 



38.0 



N. 61° W. 

 1.89 

 6.89 

 March, 

 8.81 

 July. 

 4.97 



22"95 



39.81 



8.55 in 1860. 

 Mar. 1860. 



12.41 

 August, 1852 



3.30 

 Mar. 19, '59. 



31.16 



Deo. 27, '61. 



9-10 a.m. 



46.0 



5.10 in 1853. 

 Jan. 1848. 



5.82 

 Sept. 1860. 



5 79 



Dec. 2, 1848. 



15.30 



Mar. 14, '53. 



11 to noon. 



25.6 



