Mid-Atlantic Climate Impacts Summary and Outlook: Summer 2023

MARISA Mid-Atlantic Regional Climate Summary map and title

Air quality was a significant issue in the Mid-Atlantic region during the summer season, with every state recording their worst air quality on record during June.

Explore an interactive tool displaying air quality data in the Mid-Atlantic from 2000 to the present in the latest MARISA Seasonal Climate Impacts Summary and Outlook.

Highlights

Average temperatures for the summer season were 0–1 degrees below normal for much of the region. This is the first cooler-than-normal season since the start of the MARISA Climate Summary series in 2018.
Summer precipitation amounts varied across the region, with some sites experiencing 50–75% of normal rainfall with others experiencing over 150% of normal rainfall.
In mid-June, 80% of Pennsylvania and 73% of Maryland were in drought. These states last experienced this level of moderate to severe drought in September 2002 and October 2019, respectively.

Read the Climate Summary

The MARISA Seasonal Climate Impacts Summary and Outlook is a seasonal series produced by NOAA’s Mid-Atlantic Regional Integrated Sciences and Assessments program that details seasonal weather and climate variability and change in the Mid-Atlantic region.

MARISA is led by the non-profit RAND Corporation, in partnership with researchers in Penn State University’s Earth and Environmental Systems Institute, Johns Hopkins University, the Department of Earth and Atmospheric Sciences at Cornell University, the Virginia Institute of Marine Science, Morgan State University, and Carnegie Mellon University.