Liberia's climate, with the absence of South American Leaf Blight (SALB) disease, was the major factor suiting the cultivation ofHevea brasiliensis (Hevearubber) by Firestone Plantations Company at Harbel. Notably, however, the weather was unusually hot and dry during the latter 1980's, and concerns about fires, tree survival, and economically sustainable yields surfaced. The objective was consequently set to analyze accumulated climatic data, find out if there had been significant changes in the weather at Harbel, and determine ifHevearubber cultivation at Harbel was threatened.