Weather and Growing Season Summary
The 2009 growing season resulted in mean monthly temperatures that varied from -8o F to +7o F from the 30-year average (Table 1). This year there were a total of four days above 90o F, down from 10 days in 2007 and up from 2 in 2008. Overall, 2009 was a cooler year than normal. In western Iowa, this growing season will be remembered for the combination of cooler and wetter weather conditions during the growing season.