CLIMATE SUMMARY JUNE 2025

NOAA's National Centers for Environmental Information calculates the global temperature anomaly every month based on preliminary data generated from authoritative datasets of temperature observations from around the globe. The major dataset, NOAAGlobalTemp version 6.0.0, uses comprehensive data collections of increased global area coverage over both land and ocean surfaces. NOAAGlobalTempv6.0.0 is a reconstructed dataset, meaning that the entire period of record is recalculated each month with new data. Based on those new calculations, the new historical data can bring about updates to previously reported values. These factors, together, mean that calculations from the past may be superseded by the most recent data and can affect the numbers reported in the monthly climate reports. The most current reconstruction analysis is always considered the most representative and precise of the climate system, and it is publicly available through Climate at a Glance.

As is typical, precipitation patterns varied globally during June 2025. Regions that experienced drier-than-average conditions included parts of northern Canada, the western contiguous U.S., as well as the southern half of Europe, central and western parts of Asia and southern and eastern Australia. In contrast, southern and western Alaska, the eastern half of the U.S., northern South America, northern Europe and widespread parts of Asia had wetter-than-average conditions.