New research has confirmed that frosts in Western Australia are now occurring later in the season.
And that means farmers may need to re-think their variety choices and seeding date.
CSIRO scientists, funded by the GRDC have been examining the pattern of frost in grain growing regions, right across southern Australia.
And in WA they've discovered that frosts now happen about three weeks later than they did prior to the 1960's.
And its a trend that researcher Steven Crimp says is set to continue.
"If farmers are still using historical information that's maybe 10 or 20 years old, there's certainly been some changes since then. So that could cause some problems in exposing them too some risk," he says.
"Have a look at the climate information for your location. Look at that for the last decade or 15 years. Look at how that has changed over the longer record and then make some assumptions around optimal sowing date and varietal selection."
© ABC 2013
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