Maryland Average Temperature Up 3.3°F Since 1970 Earth Day
mc_climateApr 1, 2026
A graphic from Climate Central shows the average annual temperature change in Maryland, DC, and Virginia since the first Earth Day in 1970. Maryland's average annual temperature increased by 3.3°F between 1970 and 2024. The data was highlighted by Montgomery County's Climate Change office in its April 2026 newsletter.
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Source: Montgomery County Climate, “Climate News: County Budget, Earth Month Events”, received Apr 1, 2026.
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