9/25/25 - Frost before Oct. 11 not likely

Weather History & Forecast:

• 1942: Early snowfall hit Iowa on this date, with up to 4 inches accumulating in some areas
• Coming week: Unseasonably warm and dry with sunny days, temperatures above normal
• Extended outlook: Strong warm signal through early October, particularly in upper Midwest

Recent Weather:

• Past week: 8-12 degrees above average statewide
• First above-average rainfall period in weeks (with the highest, 4.54", in Fort Dodge!)
• Eastern Iowa remained drier than western areas

Specialty Crop Updates:

• Peppers: Good yields continuing due to warm weather; some cyclamen/broad mite issues observed in Newton area
• Carmen peppers: Unusual spiciness reported - growers advised to check
• Melons: Reduced solar radiation from cloudy, wet summer conditions may have contributed to poor season (theory posited by Jordan Lyon, Buser's Produce)
• Tomatoes: Splitting issues due to uneven rainfall patterns

Frost Outlook:

• No widespread frost expected through October 11th based on dew point forecasts
• Warm, dry conditions may still allow nighttime cooling near normal levels

Upcoming Events:

• October 4: Nut Growers of Iowa field day (Centerville/Ottumwa)
• October 7: Shimek Forestry field day (southeast Iowa)
• October 9: Yellow River Forestry field day (northeast Iowa)

Greenhouse/High Tunnel Tip:

• Control weeds now to prevent pest and disease carryover through winter

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