Freeze Risk

Freeze Risk Shifts from August Report

September 12, 2019
Climatologist Al Dutcher looks at freeze risks for various sites, maturities and planting dates for corn. In some areas slightly warmer-than-normal August temperatures reduced freeze risk while in others, conditions were cooler than normal.

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Fall Freeze Risk as of early September (Table 1)

September 10, 2019
Table 1. The odds (%) of an early fall hard freeze (28°F or less), calculated using 2019 GDD accumulations from emergence to August 31 and applying 1981-2010 GDD accumulations from September 1 to the average first hard freeze date. The table (stacked in two parts) shows the odds for four emergence dates.

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2019 Freeze Risk as of July 31 for Multiple Nebraska Sites

August 8, 2019
Table 2. Fall hard freeze probabilities based on the current 1981-2010 normals comparison period. (Data source: National Centers for Environmental Information Normals, Means, and Extremes Database)
LOCATION

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Fall Freeze Risk, August 2019 (Table 1)

August 8, 2019
Table 1. The odds (%) of an early fall hard freeze (28°F or less), calculated using 2019 GDD accumulations from emergence to July 31 and applying 1981-2010 GDD average accumulations for August 1 to the average first hard freeze date. The table (stacked in two parts) shows the odds for four emergence dates.

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Calculating the Odds of a Hard Freeze

August 7, 2019
How likely are you to see a hard freeze (28°F or less) before your corn reaches maturity? Check these tables based on current and historical conditions to see whether you're in an area of concern.

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Precipitation forecast map for September 21-28 2017

Forecast for Precipitation and End-of-Season Freeze Risk

September 19, 2017
Nebraska climatologist Al Dutcher forecasts the precipitation and temperature outlook through early October and examines the freeze risk prior to corn maturity for multiple hybrids and sites across Nebraska.

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