RESEARCH IN SIERRA LEONE. 



157 



Table A. 

 Monthly Temperatures for 1911 



— 



Jan. 



Feb. 



Mar. 



Apr. 



May 



June 



July 



Aug. 



Sept. 



Oct, 



Nov. 



Dec. 



Mean. 



Freetown 



Bo 



Batkanu 



Dam 



Kaballa 



Max. 



Min. 



Mean 



Range 



Max. 



Min. 



Mean 



Range 



Max. 



Min. 



Mean 



Range 



Max. 



Min. 



Mean 



Range 



Max. 



Min. 



Mean 



Range 



913 



91-7 



92-0 



91-7 



87-8 



86-6 



84-1 



80-2 ; 



85-1 



85-1 



89-3 



89-5 



73-8 



74-2 



74-5 



75-2 



74-5 



71-8 



71-7 



71-0 i 



71-8 



70-9 



73-0 



72-9 



82-55 



82-95 



83-25 



83-45 



81-15 



79-2 



77-9 



706 



78-45 



77-5 



81-15 



81-2 



17*5 



17-5 



17-5 



16-5 



13-3 



14-8 



12 4 



19-2 



13-3 



14-2 



16-3 



16-6 



88-32 



9425 



94-3 



91-5 



88-44 



86-3 



83-2 



81-6 



84-8 



88-7 



87-2 



88-4 



65-45 



68-33 



70-2 



73-2 



7103 



70-2 



69-8 



69-2 



70-3 



69-6 



69-2 



65-7 



76-88 



81-29 



82-2 



827 



79-73 



78-2 



76-5 



75-4 



77-5 



79-1 



78 2 



77-05 



23 



26 



24 



18 



17 



16 



14 



12 



14 



19 



18 



23 



90-9 



95-3 



96-27 



95-4 



93-8 



90-6 



86-8 



84-67 



87-12 



90-04 



89-3 



89-09 



67-6 

 79-2 



69-4 



71-87 



74 



74 



72-5 



72-35 



71-93 



72-88 



72-5 



72-85 



69-46 



82-3 



84-07 



84-7 



83-9 



81-5 



79-57 



78-3 



80 



81-27 



81-67 



79-27 



23 



25 



24 



21 



19 



18 



14 



13 



15 



18 



17 



20 



86-86 



97-17 



94-14 



89-7 



89-6 



86-9 



83-3 



86-7 



87 



89-(> 



93 



87-4 



58-86 



69-5 



69-09 



70-14 



71-4 



71-3 



70-3 



69-5 



70-7 



69-9 



69-5 



66-5 



71-86 



83-3 



81-6 



79-9 



80-5 



79-1 



76-8 



78-1 



78-8 



79-7 



81-2 



76-9 



28 



28 



25 



19 



18 



15 



13 



17 



17 



20 



24 



21 



92 



94 



96-9 



95 



92 



87 



83 



82 



84 



86 



87 



89 



60-3 



65 



47-8 



49 



49 



47 



69 



66 



67 



61 



50 



58 



76-14 



79-5 



72-35 



72 



70-5 



67 



76 



74 



75-5 



73-5 



68-5 



73-5 



31 



29 



49 



46 



43 



40 



14 



16 



17 



25 



37 



41 



87-86 



72-94 



80-58 



15-8 



88-08 



69-36 



78-72 



18 



90-77 



73-4 



81-26 



19 



89 28 



6889 



79-73 



20 



88-99 



57-42 



73-2 



32 



The foregoing table gives the maximum and minimum temperatures for eaeh 

 month in 1911, taken at five stations. A cursory glance is sufficient to show that, 

 with the exception of Kaballa, there is very little variation at any of the 

 meteorological stations, either as regards the monthly distribution of the maximum 

 or minimum temperatures or the annual mean. The monthly range of temperature 

 is also similar at all four stations. Kaballa, however, is furthest from the coast, 

 being situated on a high range of hills, and consequently, although the maximum 

 there is nearly the same as at the other stations, the minimum is considerably 

 less, and the range is increased correspondingly. To this fact we shall return 

 later when discussing this station. 



Table B. 



Monthly Record of Rainfall in inches in 1911. 





Jan. 



Feb. 



Mar. | Apr. 



May June 



July Aug. 



Sept. 



Oct. 



Nov. 



Dec. 



Total. 



Bonthe l'OO 



0-43 



0-40 



2-95 



11-82 



23-19 



24-54 



33-53 



25-66 



17-33 



8-17 0-71 



149-63 



Freetown 



o-oi 



0-07 



0-02 



0-66 



4-00 



15-52 



26-05 



36-08 



33-04 



1423 



6-00 ! 0-91 



186-59 



Bo 



0-35 



0-25 



4-51 



2-50 



7'14 



18-29 



13-21 



26-41 



25-93 



11-00 



9-22 0-35 



11916 



Batkanu 



— 



— 



0-87 



2-71 



8-24 13-66 



18-03 



17-15 



18-95 



19-99 



7-61 | 0-62 



107-73 



Daru ... 



— 



3-38 



4-42 



10-45 



15-65 



7-63 



7-93 



7-16 



14-02 



8-44 



8-12 



87-20 



Kaballa 



— 



— 



o-io 



3-76 



6-68 



10-31 



11-07 



14-52 



18-86 



14-59 



0-24 



— 



80-13 



This table gives the monthly record of rainfall in inches for six stations in 

 1911. It serves to show graphically the duration of the wet and dry seasons 



