What is the impact of La Niña on the U.S. weather?

La Niña, the cool phase of the El Niño-Southern Oscillation (ENSO) climate cycle, is expected to influence the weather across the U.S. from October to December 2025, leading to above-average temperatures in much of the country and above-average precipitation in the southern half of Florida and the Northwest.

Which regions of the U.S. are most likely to experience extreme weather conditions due to La Niña?

According to the forecasts, parts of the Southwest, including Texas, New Mexico, and Arizona, as well as areas in the Northeast, such as New York, Connecticut, Rhode Island, Massachusetts, Vermont, and New Hampshire, are highlighted as facing the highest chances of above-average temperatures. Additionally, parts of Texas, New Mexico, Arizona, Colorado, Oklahoma, Kansas, Nebraska, Louisiana, Arkansas, Mississippi, Alabama, and Tennessee are expected to see below-average precipitation.

How certain are the weather predictions for the U.S. in late 2025?

The Climate Prediction Center (CPC) has indicated a 71% chance of La Niña influencing the climate from October to December 2025, which is a significant probability. While the forecasts also incorporate longer-term trends and other factors, the potential impact of La Niña is a major driver of the predicted weather patterns across the country.

Home / Weather / La Niña's Arrival Sparks Dramatic Weather Shifts Across the U.S.

La Niña's Arrival Sparks Dramatic Weather Shifts Across the U.S.

5 Oct

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Summary

La Niña expected to influence climate from October to December 2025
Much of the U.S. favored to see above-average temperatures
Southern Florida and Northwest likely to experience above-average precipitation

According to the latest forecasts, the U.S. is set to experience dramatic weather shifts in the coming months due to the anticipated arrival of La Niña, the cool phase of the El Niño-Southern Oscillation (ENSO) climate cycle.

The Climate Prediction Center (CPC) has indicated a 71% chance of La Niña influencing the climate from October to December 2025. This natural climate pattern is expected to have a significant global impact on weather, wildfires, and ecosystems.

The CPC's maps reveal that much of the country is favored to see above-average temperatures during this period. Regions most likely to experience the highest temperatures include parts of the Southwest, such as Texas, New Mexico, and Arizona, as well as areas in the Northeast, including New York, Connecticut, Rhode Island, Massachusetts, Vermont, and New Hampshire.

In terms of precipitation, the CPC has highlighted the southern half of Florida and the Northwest as the areas most likely to see above-average levels from October to December 2025. Conversely, parts of Texas, New Mexico, Arizona, Colorado, Oklahoma, Kansas, Nebraska, Louisiana, Arkansas, Mississippi, Alabama, and Tennessee are among the regions expected to experience below-average precipitation.

These forecasts not only incorporate the potential influence of La Niña but also take into account longer-term trends and other factors that can shape weather patterns. While a weak La Niña may open the door for other factors to alter the overall weather, the current predictions suggest that the country is in for a significant shift in temperature and precipitation in the coming months.

Disclaimer: This story has been auto-aggregated and auto-summarised by a computer program. This story has not been edited or created by the Feedzop team.