﻿RESEARCH IN BRITISH WEST AFRICA. 



151 



June or early in July, after which it abates somewhat, and the curve falls con- 

 siderably during July and early August, when the rain again increases in intensity 

 until September or October is reached, again diminishing in amount till January. 

 The maximum in June to July is much greater than that in September to 

 October, while the minimum in August does not fall so low as in December to 

 January. Thus, in the southern belt, rain falls during nearly every month in the 

 year, but there are two well marked maxima and minima in the rainfall curves. 

 This is known as the equatorial type. These maxima tend to fuse in the northern 

 part, especially in the Western Province, to form one annual maximum ; the 

 number of months with a small rainfall increases, and there are some without any. 

 This can be seen most readily by plotting out graphs for the various stations. 



Table C. 



Analysis of Rainfall for 1910. 



Station. 



— 



Jan. 



Feb. 



Mar. 



Apr. 



May. 



June. 



July. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 



Brass 



(Max. 



(Days 



•58 



1-77 



2-24 



1-26 



2-18 



3-50 



7-45 



2-61 



5-43 



3-32 



3-75 



2-80 



2 



9 



10 



13 



12 



20 



14 



22 



25 



20 



17 



9 



Calabar . . . 



(Max. 

 (Days 



— 



•83 



•58 



•65 



1-65 



•80 



2-10 



4-05 



3-40 



2-20 



— 



•29 



— 



6 



4 



15 



14 



18 



21 



31 



21 



18 



— 



2 



Forcados . . . 



( Max. 

 (Days 



•05 



1-60 



1-10 



1-80 



3-10 



1-60 



3-10 



3-10 



5-10 



2-30 



•50 



•30 



1 



4 



6 



11 



20 



19 



21 



20 



18 



17 



2 



1 



Akassa ... 



(Max. 



( Days 



•56 



2-20 



2-68 



1-47 



2-45 



7-74 



5-33 



1-96 



4-05 



3-15 



1-03 



2-15 



6 



11 



11 



16 



13 



19 



16 



20 



22 



23 



15 



7 



Bonny 



(Max. 

 (Days 



1-00 



1-50 



— 



2-33 



2-38 



7-50 



3-00 



3-35 



3-10 



2-50 



3-10 



1-44 



2 



5 



— 



15 



15 



15 



11 



14 



9 



9 



10 



8 



Sapele 



(Max. 

 ( Days 



— 



•10 



1-50 



2-10 



•88 



4-20 



3-72 



3-50 



2-70 



3-66 



nil 



nil 



— 



1 



7 



9 



13 



14 



13 



16 



15 



10 



nil 



nil 



Warri 



(Max. 



"j Days 



1-57 



— 



1-19 



2-32 



2-05 



7-40 



2-05 



6-11 



4-60 



2-40 



•96 



•24 



1 



— 



4 



7 



10 



14 



9 



20 



15 



9 



7 



3 



werri 



( Max. 

 (Days 



•41 



1-95 



1-52 



3-05 



1-08 



2-33 



2-05 



3-10 



2-11 



1-45 



nil 



— 



2 



3 



2 



11 



16 



21 



14 



24 



22 



12 



nil 



— 



Opobo 



(Max. 

 (Days 



•33 



— 



1-07 



1-50 



1-55 



4-15 



4-52 



2-47 



4-05 



2-92 



1-20 



nil 



3 



— 



4 



10 



8 



15 



12 



21 



14 



16 



9 



nil 



Onitsha ... 



] Max. 



•35 



1-05 



1-05 



2-05 



•85 



1-56 



3-40 



2-83 



2-27 



2-20 



nil 



•40 



( Days 



2 



4 



3 



7 



11 



9 



17 



19 



14 



13 



nil 



1 



Degema ... 



j Max. 

 (Days 



•55 



•31 



1-90 



1-70 



2-10 



2-12 



3-56 



1-48 



2-62 



1-95 



1-76 



nil 



2 



3 



5 



9 



16 



11 



14 



24 



11 



8 



4 



nil 



Epe 



( Max. 

 (Days 



•57 



•60 



•24 



1-97 



1-76 



2-55 



8-25 



1-88 



1-80 



1-64 



•14 



— 



1 



2 



3 



8 



11 



11 



18 



11 



12 



11 



3 



— 



Abo 



(Max. 



(Days 



•41 



•44 



1-12 



1-27 



4-34 



3-02 



8-20 



•98 



•83 



•67 



nil 



nil 



2 



3 



4 



10 



13 



19 



22 



26 



23 



13 



nil 



nil 



Benin City 



(Max. 

 ( Days 



— 



•86 



•67 



•46 



1-64 



4-15 



1-75 



3-73 



2-43 



1-48 



•80 



nil 



— 



2 



2 



6 



12 



13 



21 



23 



19 



17 



3 



nil 



Olokemeji 



(Max. 

 (Days 



nil 



nil 



2-04 



2-67 



1-70 



2-89 



•31 



1-42 



1-52 



1-43 



•94 



nil 



nil 



nil 



6 



11 



11 



17 



19 



23 



21 



19 



1 



nil 



Ondo ... 



( Max. 

 (Days 



— 



•12 



•80 



•85 



1-53 



1-52 



1-51 



7-04 



2-50 



■92 



nil 



__ 



— 



1 



4 



8 



4 



15 



5 



18 



15 



16 



nil 



— 



Lagos 



(Max. 



(Days 



•38 



•07 



•73 



1-31 



1-43 



5-00 



4-10 



•92 



2-45 



2-06 



1-11 



•11 



1 



2 



2 



8 



15 



22 



17 



17 



13 



12 



3 



2 



Oshogbo ... 



j Max. 



•01 



•95 



1-34 



112 



1-12 



•91 



2-31 



— 



1-81 



•91 



•47 



nil 



( Days 



1 



3 



4 



10 



13 



18 



14 



— 



13 



18 



2 



nil 



Ibadan . . . 



S Max. 



•23 



•36 



1-25 



3-20 



1-91 



2-42 



3-45 



1-60 



1-13 



2-05 



nil 



— 



( Days 



1 



2 



8 



li 



8 



10 



15 



11 



8 



11 



nil 



— 



Badagri ... 



( Max. 

 (Days 



nil 

 nil 



— 



— 



1-30 

 6 



1-24 

 11 



— 



3-95 

 9 



•30 

 5 



2-05 

 3 



2-70 



5 



•70 

 3 



nil 

 nil 



