Last mentioned: Mar 4, 2026
Current Data Release
New mapping confirms 50-year warming trend across nearly all major U.S. metropolitan areas.
Record Early Spring
One of the earliest recorded 'first leaf' dates across the Eastern U.S., leading to major crop losses.
Acceleration
Spring warming begins to outpace other seasons in the Southwest and Northeast.
Baseline Year
Modern climatological records begin tracking the current warming trend in earnest.
New climatological data reveals that spring temperatures across the United States have risen by an average of 2.2°F since 1970, with some regions seeing increases of over 5°F. This shift is shortening winters, extending allergy seasons, and creating volatile conditions for the agricultural sector.
This page surfaces every story mentioning NOAA across our climate coverage. We track each entity's appearance over time so readers can trace how the narrative evolves — which developments are isolated incidents, which build into longer arcs, and which reframe how operators in the space think about the entity. Story selection uses the same multi-source verification gate applied across the rest of our coverage.
Read our editorial methodology for how we identify, deduplicate, and score entity references. Our glossary defines the technical terms used across stories on this page, and our trends index contextualizes individual developments against the longer-running climate beat. Cross-entity comparisons live on our compare view.
| What you see | What it tells you |
|---|---|
| Story count | Number of distinct stories where NOAA was a primary or referenced actor. |
| Recency clustering | Whether mentions are concentrated in a recent window (a news cycle) or distributed (a sustained arc). |
| Sentiment distribution | Aggregate sentiment of the stories mentioning this entity, weighted by impact score. |
| Cross-niche links | When the same entity surfaces in our sibling networks, we link to those views to enrich context. |