Updated January 2015. The increased cost of health insurance is a central fact in any discussion of health policy and health delivery. As annual premiums edged beyond $16,800 for an average family, costs are blamed for rising uninsured and under-insurance..
Figure 1. Corn growth and temperature levels. Corn will germinate and grow slowly at about 50 F (10 C), but the average first spring planting dates across the U.S. usually begin when the average air temperatures reach 55 F (13 C) and soil temperature at seed depth is favorable for seedling growth.
At the V6 growth stage, corn would be approximately 12 inches tall. It is important to remember that although corn can germinate and grow slowly at about 50Â°F, the planting should start when the average soil temperature reaches 55Â°F at the top two inches.he optimal average temperatures for corn growth range between 68 and 73Â°F. However, the optimum temperature varies over the corn growing season and between daytime and nighttime. Corn can survive short exposure to low and high temperatures of 32 and 112Â°F, respectively.