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EXIiIBIT K - Climate The climate of Logan County is semi-arid continental. Because the county is separated from ma,~or sources of moisture by large distances and mountain ranges, its climate is characterized by low humidity, wide variations in precipi- Cation, temperature and abundant sunshine. Logan County is usually warm in summer with frequent hot days. The highest temperature occurs during July and August. In winter, periods of very cold weather are caused by Arctic air moving in from the north or northeast. Cold periods alternate with milder periods that occur often when westerly winds are warmed as they move downslope. Most precipitation falls as rain during the warmer part of the year and is nor- mally heaviest in late spring and early summer. Winter snow falls are frequent, but snow cover usually disappears during mild periods. The mean annual precipitation in Logan County ranges from 13 inches in the western part to nearly 19 inches in the eastern part. Most of the precipitation occurs during the growing season, commonly as thunderstorms. Of the total annual precipitation, 12.27 Inches or 81 percent usually falls in April through September which includes the growing season for most crops. In two years out of ten, the April-September rainfall is less than ten inches. Average seasonal snowfall is 29.9 inches. Some years, blizzards with high winds and drifting snow occur in the county and snow remains on the ground fora few weeks. Tornadoes occur occasionally in the county. Sunmer hailstorms are common and can cause severe local damage to crops in the county. Drought is always a risk in non-irrigated cropland areas. Most non-irrigated crops are grown in a sequence with summer fallow. This sequence tends to reduce the hazard of crop failure. EXHIBIT K - Climate