Eyre Peninsula farmers may be confused right now after receiving 35 to 45 millimetres of rain last week after a drought-like autumn and winter.
Cleve Rural Traders agronomist Geoff Rissmann said the late rains may have a negative impact on crops that are yet to be reapt.
“The chances are the grain will germinate, which means it will be downgraded at the silos,” Mr Rissmann said.
“It will also lose its colour and turn a dark brown, grey or even black.
“There may also be a lot more moisture in the grain and it will be over ripe.”
However, the rain may be beneficial for those who have planted summer crops.
“There are a few people putting in summer crops of millet and they will definitely be grateful for this rain,” Mr Rissmann said.
Cleve and Port Lincoln received 43mm last Thursday, while Kimba receive 28mm and Whyalla just 22mm.
Bureau of Meteorology is forecasting more rain on Thursday and Friday with further chances of thunderstorms.