A strong push of cold air invaded Iowa during the morning of the 10th.  Most of the northwest half of the state fell below freezing on the morning of the 10th, with all of the state recording a killing freeze by the morning of the 11th.  In addition, the seasons first significant snow fell over parts of central, southwest, and west central Iowa with 1 to 3 inches of snow recorded.  The heaviest was over the southwest and far west central counties.  The snow was very early, with Des Moines recording 1.1 inches.  That was the earliest occurrence of a 1 inch or greater snowfall on record.  With the previous summer being one of the coolest on record, crop development was 7 to 13 days behind normal.  As a result, only 70 to 80% of the corn crop was mature and soybean harvest was behind normal.  The freezing temperatures ended the growing season.  This reduced the weight of the immature corn crop that was stunted by the frost and caused some fields of soybean pods to freeze and crack open, thus dropping their beans.  Crop reductions statewide were estimated to be on the order of 2% of the total crop.  Estimates placed the corn crop losses around $75,000,000 and soybean losses around $50,000,000.

Frost/Freeze in MADISON, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in JASPER, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in MAHASKA, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in MARION, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in KOSSUTH, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in HARDIN, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in HUMBOLDT, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in LUCAS, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in ADAIR, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in MARSHALL, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in BOONE, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in BREMER, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in DECATUR, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in WINNEBAGO, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in RINGGOLD, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in SAC, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in WORTH, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in HANCOCK, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in CRAWFORD, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in DALLAS, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in WAYNE, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in WEBSTER, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in GREENE, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in CERRO GORDO, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in GRUNDY, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in CLARKE, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in WAPELLO, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in BUTLER, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in CARROLL, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in CASS, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in WARREN, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in EMMET, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in FRANKLIN, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in CALHOUN, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in STORY, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in TAYLOR, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in UNION, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in WRIGHT, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in HAMILTON, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in GUTHRIE, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in TAMA, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in DAVIS, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in MONROE, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in ADAMS, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in APPANOOSE, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in PALO ALTO, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in POCAHONTAS, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in AUDUBON, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in BLACK HAWK, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in POLK, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency

Frost/Freeze in POWESHIEK, IOWA
From 10-OCT-09 02:00:00 to 11-OCT-09 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 2.50M
Reported by: Other Federal Agency