The average height of the mercury in the thermometer, during the month of January, is about 85°, it seldom varies more than 10°, during the 24 hours of the day; and usually it does not vary more than 4° between the hours of 10 A. M. and 10 P. M. During this month, however, I have seen the mercury stand at the lowest mark, at which I ever observed it, in Liberia, that is, at 68°. This was early in the morning during the prevalence of a very strong land-breeze. During this month I have also seen the mercury stand at the highest mark, at which I ever observed it--that is, at 90°. The air is sometimes uncomfortably cool, before 8 o’clock A. M., during this month. During the month of _February_ the weather is generally similar to that of January. There are, however, usually more frequent showers of rain; and sometimes, towards the close of this month, slight tornadoes are experienced. The harmattan haze generally disappears about the last of this month; and the atmosphere becomes clear. The range of the thermometer is about the same as in January. _March_ is perhaps the most trying month in the year to the constitutions of new-comers. The atmosphere is usually very oppressive during this month--the sun being nearly vertical. The occasional showers of rain, and the slight tornadoes, which occur in this month, do not usually mitigate the oppressiveness of the atmosphere, as might be supposed. The variation in the state of the atmosphere, as indicated by the thermometer, seldom exceeds 6° during the whole of this month. The average height of the mercury is about 85°. _April_ is significantly called the ‘tornado month,’ the most numerous and most violent tornadoes usually occurring during this month. The ordinary state of the weather, in reference to the degree of heat, and its influence on the system, is not very different from that of the three preceding months. The showers of rain are usually more frequent, however; and the visitations of those peculiar gusts, called _tornadoes_, are much more common in April, than in any other month. These are sudden, and sometimes violent gusts, which occur much more frequently at night, than during the day. Although they usually approach suddenly and rapidly, yet certain premonitory evidences of their approach are almost always presented, which are generally easily recognized by persons who have frequently observed them. They generally commence from northeast, or east-northeast, and rapidly shift around to nearly southeast; by which time the storm is at its height.