In harmony with kanellop's agriculture/weather postings (which I have found to be very informative - keep it up!), the USDA NASS provides these maps of planted acreage, harvested acreage, yield per acre, and production acreage by county.
http://www.nass.usda.gov/Charts_and_Maps/Crops_County/index.asp
When comparing observed and forecasted precipitation and temperature reports, having a mental image of these maps overlaid in your mind can help you form a more accurate picture of what crops are receiving (or not receiving, as is the case this year) rainfall and suitable temperatures.
-codeine
http://www.nass.usda.gov/Charts_and_Maps/Crops_County/index.asp
When comparing observed and forecasted precipitation and temperature reports, having a mental image of these maps overlaid in your mind can help you form a more accurate picture of what crops are receiving (or not receiving, as is the case this year) rainfall and suitable temperatures.
-codeine