Degree Day Information for Iowa

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July 12, 2004
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July 26, 2004
 Degree Day Map
Base-50 degree days. (Accumulated degree days shown; departure from average shown in parentheses.)
May 1, 2004 through July 25, 2004.

Rain needed in August

It was about a year ago now that I wrote here that crop conditions across Iowa were generally good to excellent. I went on to say that all we needed then was some favorable weather in August, and things looked good for harvest. It seems we are there again. With any luck (spell luck r-a-i-n) we should be on tap for respectable yields.

On another note, our western bean cutworm (WBC) trapping has accomplished two things:

  1. WBC is now documented in all areas of Iowa, and

  2. it is now time to scout for WBC, if you haven't already.

To see trap capture data near you, visit our western bean cutworm website.

Updated August 2, 2004.

More about degree days:

How and why
we measure
degree days
(5/17/2004)

Degree days and
crop management
(4/6/1998)

Updated each Wednesday until July 22, after which it is updated monthly.
Provided by Rich Pope, Extension Specialist
Department of Entomology, Iowa State University,
Ames, Iowa. Original weather data from
Midwest Climate Information Center. 		[Integrated Crop Management]
[Integrated Pest Management]
[To Iowa State Entomology Home Page]

This page is part of the Iowa State Entomology site. Last updated 8/2/04 by John VanDyk