Indiana has much the same temperature with Illinois and Missouri. The winters are mild, and seldom last in their severity more than six weeks; during this period, the slower streams are generally frozen, and afford a safe passage on the ice. In the middle and southern parts of the state snow seldom falls to a greater depth than six inches. Trees begin to be green early in April, and the peach blossoms in March. A large number of shrubs put forth their flowers before the leaves, and from this the spring vegetation is singularly beautiful. Illinois has in general the same climate with Missouri, and its productions are the same as those of that state; being, however, somewhat lower, it is more subject to inundation, and consequently the air is more humid. The portions of Pennsylvania, Virginia, North Carolina, Georgia and Alabama, comprehended within this division, partake the general character of climate with those we have particularly described.
4. The region possessing a warm climate lies between the temperate, and a line drawn from Cape Henry in a circular direction, and passing above Tarboro, and through Fayetteville, Columbia, Augusta, Milledgeville and Fort Jackson in Alabama, and thence a little south of west across the Mississippi, and on to the Sabine river, in the latitude of Nacogdoches, in Texas. In this region the winters continue from about the first of January to the first of March; and the summers from the first of May to the middle of October. The weather is pretty settled and steady, and, except in swampy or marshy situations, the country is generally healthy. This region includes the interior and central parts of North Carolina, the northern and western parts of South Carolina, the northern parts of Georgia, Alabama, Mississippi, and Louisiana.
In the northern and western parts of South Carolina, the land is mountainous, and the climate generally salubrious. The air is dry, and in winter cold; but it is generally mild and delightful. The highlands of North Carolina that lie within this district are healthy and pleasant; the days in summer are hot, but the nights are refreshed by cool breezes. The northern and hilly region of Georgia is as healthy as any part of the states. Winter continues from the middle of December to the middle of February. The northern parts of Alabama, in the districts of hills, springs, and pine forests, are generally healthy. In winter the still waters often freeze; and the summers are not much hotter than they are many degrees farther to the north.
The climate of the northern part of Mississippi, in places removed from stagnant waters, is healthy. Heat in summer is intense; and during the latter month of that season and the first of autumn, even the residents in the healthy districts are exposed to severe bilious attacks. In compensation, however, they are free from the pulmonary affections which occasion so much destruction in the more northern regions. The productions of this state are the same with those of Louisiana.
5. The hot region extends from the southern extremity of the warm, to the Atlantic Ocean, and the Gulf of Mexico. It comprises all Florida, and the southern parts of the Carolinas,39 Georgia, Alabama, and Mississippi, with the greater portion of Louisiana.
The climate of Florida may be considered in some respects as a tropical climate. From the first of July to the first of October, the air is sultry, and the heat exceedingly oppressive. This may be considered the unhealthy season, during which fevers are prevalent, but even at this time the climate of St. Augustine is salubrious and pleasant, and is a place of resort for those who are desirous of avoiding sickness. During this period the range of the thermometer is between eighty-four and eighty-eight degrees, and it sometimes rises above one hundred. Even in winter, the influence of the clear vertical sun is always uncomfortable; in the peninsular parts, water never freezes, though there are sometimes slight frosts. In this climate the most delicate orange trees flourish and bear delicious fruits; the air is generally pure and mild, and the breeze pleasant. Heavy dews fall, and the night air is exceedingly humid. The rainy season commences early in winter; in February and March there are severe thunder storms by night, followed by days of great clearness and beauty. The peninsula is visited by tornadoes, and at the time of the autumnal equinox, hurricanes and destructive gales occur.
In the southern and eastern portions of the Carolinas, the summers are very hot, sultry, moist and unhealthy. The extensive and rapid decomposition of vegetable matter engenders exhalations, which unite with the miasmata of the swamps, and create an atmosphere loaded with the most deleterious qualities. Intermittent and bilious fevers are frequent and severe. In the low country the summer lasts seven or eight months; and though the winter frost is sometimes severe enough to kill the tender plants, it seldom lasts more than three or four days, or penetrates the ground above two inches. Spring commences about the middle of February, and green peas are often in the market by the middle of March; but the weather varies very much till about the first of May, when it becomes steadily warm, and continues increasing in heat till September, when it begins to moderate. Almost every person whose circumstances permit, removes to a more healthy situation during this period, and a vast number go to the northern states in the summer, and return in the fall. The period of going north is mostly from the middle of May to the middle of July, and of returning, from the middle of October to the middle of November. The anxiety that prevails during that period is extreme, and when it is over, the inhabitants congratulate one another with the full prospect of ten or eleven months being added to their lives.
The climate of Georgia differs little from that already described of the Carolinas. The rice swamps, and the low country in general, are very unhealthy, and the planters are obliged, during the sickly season, to retire to the elevated parts of the state. A near approach to the tropical temperature is found in some portions of Georgia, where the cane, the olive, and sweet orange flourish luxuriantly. The climate of the southern part of Alabama, and of Mississippi, resembles that of Georgia and South Carolina in the same latitudes. In the thirty-first degree of latitude, the thermometer stands in spring water at sixty-nine degrees, which is nearly the mean temperature of the year. A series of thermometrical observations is mentioned by Mr. Flint, which gave the following result. The warmest part of the warmest day in April, gave eighty-two degrees; mean heat of July of the same year, eighty-six; coldest in January, fifty-four; coldest in February, forty-three; warmest in March, eighty-five degrees. In the same year, trees even in swamps, where the vegetation is most tardy, were in full leaf by the second of April; at which time peach blossoms were gone. Peas were in pod by the twelfth of April; when peaches were of the size of a hazel-nut, and the fig trees in full leaf. Green peas were on the table, and strawberries ripe by the second of May, and on the sixteenth of the same month, mulberries, dewberries, and whortleberries were ripe.
The climate of Louisiana bears a general resemblance to that of Florida. All the northern fruits come to perfection here, with the exception of apples. The pumpkin and melon tribe flourish, and the common garden vegetables are cultivated in abundance. Figs of different kinds might be extensively raised for exportation, but are much neglected. On the rich alluvial lands maize thrives wonderfully; but wheat and rye do not flourish. In the region of the sugar-cane, along the whole shore of the gulf, and on the lower courses of the rivers of Louisiana, the orange tree flourishes and bears a delicious fruit. In the year 1822, a severe frost destroyed these trees while in full bearing, but the roots have thrown out new trees. The cultivated grape, and various wild grapes abound. Berries are neither common nor good. Cotton grows to the height of six feet; and tobacco of the first quality is extensively raised.
In addition to the views of climate already given, we may add the following description of that of Mississippi Valley, for which we have been indebted to the industrious observation of Mr. Flint. ‘We may class four distinct climates, between the sources and the outlet