10 



FIELD OPERATIONS OF THE BUREAU OF SOILS, 1819. 



Normal monthly, seasonal, and annual temperature and preciititation at 

 Kimball, Kimiall County. 



The mean annual rainfall is about 16 inches, but the precipitation 

 varies greatly from year to year. Precipitation in the wettest year 

 on record amounted to 25.59 inches and in the driest year to 9.46 

 inches. About 76 per cent of the annual rainfall occurs during the 

 growing season, from April to September, inclusive. About 46 per 

 cent occurs in May, June, and July, with the maximum in May. 

 From October to March, inclusive, the precipitation commonly aver- 

 ages less than 1 inch per month. The rainfall in May and June is 

 usually well distributed. In July, August, and September the dis- 

 tribution is not so favorable and occasional long droughts occur dur- 

 ing these months. The average annual snowfall is less than 2 feet. 

 The greater part falls during December, January, and February. 



The mean annual temperature is 47.4° F. January is the coldest 

 month, with a mean annual temperature of 26.5° F., and July the 

 warmest with a mean of 70.7° F. The mean annual temperature for 

 August is only 1° lower. The lowest temperature recorded is — 33° 

 F. in January and the highest 106° in July. 



