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Farmers in Montana can look to Peru for an early spring weather forecast, a new study suggests.

The study links extreme Montana weather to fall Pacific Ocean temperatures near Peru, according to a Montana State University researcher who analyzed 100 years of weather data.

If the average surface temperature of the ocean near Peru is warmer than normal from November through March, fishing off the coast of Peru will be poor and Montana will experience ((CONLINK|14176|El NiÃ