It's simply an average. If you got 4000 bushel of corn from 100 acres, you'd be getting an average of 40 bushel per acre. (4000/100=40). An acre is measure of area (of land), yield is simply the amount of something (crops) that is produced. Yield could be measured in whatever measurment is approprate for the crop: weight, volume, etc.
The highest monthly average temperature in Spartanburg for August is 80 degrees. The lowest monthly average temperature in Spartanburg for January is 44 degrees. The most monthly precipitation in Spartanburg occurs in December with 4.8 inches. The air quality index in Spartanburg is 19% better than the national average. The pollution index in Spartanburg is 52% worse than the national average.
North Carolina Weather > Sparta Weather Sparta, NC Weather Sparta, NC climate is mild during summer when temperatures tend to be in the 60's and very cold during winter when temperatures tend to be in the 30's. The warmest month of the year is July with an average maximum temperature of 79.70 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 18.50 degrees Fahrenheit.