The summer rains of the Ukraine differ from those of Central or Western Europe in their heaviness. Only in the Western Ukraine are the summer rains of the type of gentle rains that are uniform for an entire country; in the south and east they appear as cloudbursts in heavy showers. In Samashcani, in Bessarabia, there have been times when 200 mm. of rain fell in a single day, in Korovintzi [[97]]in the Poltava region, 5 mm. in one minute. In the Pontian steppes all rain falls in the form of heavy showers. The water flows off quickly and evaporates rapidly, before it is able to thoroughly saturate the ground.
Electric discharges and hailstorms occur in close connection with the summer rains, most frequently in June, less so in July and in May. They usually come from the southwest in the afternoon hours. Most of these storms originate in the Carpathian Mountains and reach Volhynia and Kiev, but do not cross the Dnieper. The Caucasus, too, has very many storms. Hailstorms are most frequent in Galicia and Volhynia and the western part of the Kiev regions; very rare in the southeast.
In August the amount of rainfall slowly decreases; in September and October still more, and so it continues until December. January is the month of least rainfall for the entire Ukraine (only one-fourth of the June figure), and this circumstance is of particularly great significance for the southern and eastern parts of the Ukraine. For this reason the cover of snow in the Ukraine is much less than in Central Europe or Muscovy, besides which, it is often disturbed by snowstorms. The slight snow-cover melts down quickly in the spring, without saturating the soil well, and without requiring much warmth. This explains the rapid rise of heat in the Ukrainian spring.
From January until the end of April the amount of rainfall again grows slowly but steadily, reaching its maximum in June.
The southern part of Crimea and the Caucasian shore have just the opposite annual distribution of the precipitations. Under the influence of the moist Pontian winds, the greatest amount of rain falls in December and January, while the spring and summer have very little rain. These characteristics of the Mediterranean climate, the rainy winter after the dry summer, are all the more striking, [[98]]since the opposite condition prevails on the other side of the Yaila and Caucasus Mountains.
From this account of the Ukrainian climate we see that this climate retains an entirely independent position as against that of Central Europe or Russia. The Ukrainian climate is characterized by an annual amplitude of 20° to 30°, a mean annual temperature of from +6° to +12°, a July mean of from +19° to +24°, and a January mean of from 0° to 8°, with predominant summer rains and a generally insignificant cover of snow. The difference from the Russian climate is, consequently, quite considerable. The Russian climate forms the transition to the polar, that of the Ukraine to the Mediterranean climate.
Nature has provided the Ukraine with a pleasant, very wholesome climate. On the whole temperate, it does not lack heavy frosts and considerable degrees of heat, which harden the Ukrainian to any inclemencies of the weather. The differences of the seasons cause a pleasant variety, strong winds clear the atmosphere and bring motion into nature, the rains are everywhere sufficient for the growth of vegetation and the carrying on of the most important occupation of the Ukraine—agriculture. The great uniformity of this Ukrainian climate has recently caused the French geographer, de Martonne, to set it up as one of the types of climate of the globe. [[99]]
Flora and Fauna of Ukraine
Eastern European bigness characterizes also the organic life of the Ukraine. But it follows, from the location of the country, that the Ukraine has a much more varied plant and animal geography than the proper Russian territory, despite the latter’s much greater extent.