South America Rain Have and Have-Not

Rainfall is already verifying; on Dec. 21 alone, rainfall in Mato Grosso was measured at more than 2.5 inches at several stations. This sector of South America is the “have” in terms of rain prospects.

In contrast, southern Brazil states of Parana and Rio Grande do Sul through the entirety of Argentina crop country have well under 1 inch of rain forecast through the end of December, generally 0.25 inch or less. Such a meager amount as the Southern Hemisphere goes into its summer season qualifies as “have not” when it comes to precipitation.

Up to this point in December, temperatures in Argentina have mostly been near to below normal. However, the end of the month has a notable warming trend. The high temperature in Cordoba, the state capital of Cordoba, is projected to hit 39 degrees Celsius or 102 Fahrenheit on Christmas Day. For this sector of South America, the description on rain prospects is “have not”.

La Nina is expected to remain in effect through the rest of the South America crop year. That places this rain-no rain contrast squarely into focus as the defining feature for 2020-21.

Bryce Anderson can be reached at

Follow him on Twitter @BAndersonDTN

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