The traditional dog days of summer roughly range from July 4 through about August 10. Although they were named for the time when the dog star, Sirius, rose with the sun, dog days for us is the time when row crops are pollinating and the first half of grain fill. The week starting July 10 was about average in degree day accumulation, and especially in the southern two-thirds of Iowa, some welcome rain fell. Moisture remains a concern, but the week's rainfall coincided with pollination, which is a very good thing.
Iowa State University
Pope, Richard O., "These are the dog days" (2006). Integrated Crop Management News. 1310.
The Iowa State University Digital Repository provides access to Integrated Crop Management News for historical purposes only. Users are hereby notified that the content may be inaccurate, out of date, incomplete and/or may not meet the needs and requirements of the user. Users should make their own assessment of the information and whether it is suitable for their intended purpose. For current information on integrated crop management from Iowa State University Extension and Outreach, please visit https://crops.extension.iastate.edu/.