Winter 2024-25 Weather. The most recent international research institute (iri) for climate and society. According to ag2's todd crawford, decembers during previous weak la niñas tended to be colder than average in the northern u.s., particularly in the northern.

A first look at the winter 2024/2025 forecast shows the influence of a weak la niña phase. The latest forecast expects la niña to emerge this fall and persist through the.