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.
1 Measure soil temperature at corn planting depth (1.5 to 2 inches). 2  If the early morning temperature (the low) is above 50 degrees (F), then consider planting.3  Check the forecast for assurances that the soil temperature of 50 degrees (F) or above is likely to hold for 3-5 days.hen planting early, consider using the following guidelines: 1  Measure soil temperature at corn planting depth (1.5 to 2 inches). 2  If the early morning temperature (the low) is above 50 degrees (F), then consider planting.