Summer Nights are Warming Across the U.S.

Graphic

Summer Nights are Warming Across the U.S.

  • Published: Aug 7th, 2019

Summer minimum temperatures are warming fast across the U.S. — leading to added health risks and higher energy costs

 How Summer Nights are Changing In Your Area

Graphic

How Summer Nights are Changing In Your Area

  • Published: Aug 7th, 2019

Is the summer heat making it hard to sleep? Here’s how the summer minimum temperatures have been changing in your city.

 Ozone Season Lengths Across the Country

Map

Ozone Season Lengths Across the Country

  • Published: Jul 31st, 2019

As long as ozone season sticks around, so do concerns about the health risks of poor air quality. Check out where ozone is an issue across the country.

Explainer: How Ground-Level Ozone Is Formed

Graphic

Explainer: How Ground-Level Ozone Is Formed

  • Published: Jul 31st, 2019

Ground-level ozone is a hazardous air pollutant and a key component of smog. Here’s how it forms.

How Ozone Levels Are Changing in Your City

Graphic

How Ozone Levels Are Changing in Your City

  • Published: Jul 31st, 2019

Ozone pollution can reach unhealthy levels in your city. Here’s how the number of unhealthy ozone days have changed over time.

Hotter Summers Mean More Stagnant Air

Graphic

Hotter Summers Mean More Stagnant Air

  • Published: Jul 24th, 2019

Hotter summers often lead to more stagnant air—trapping air pollutants that can cause health problems.

Nationwide Trends in Air Stagnation Since 1973

Map

Nationwide Trends in Air Stagnation Since 1973

  • Published: Jul 24th, 2019

Since NOAA’s Index began in 1973, the number of annual stagnant days has increased in 83% of the contiguous U.S. cities analyzed.

 2019 Global Temperature Anomalies Through June

Map

2019 Global Temperature Anomalies Through June

  • Published: Jul 18th, 2019

While U.S. temperatures have been relatively mild this year, the rest of the world has endured near-record heat.