The magnificent cherry blossoms at DC's Tidal Basin draw more than 1.6 million visitors every spring, but timing a trip to see them at their primate be
Climate change is no longer an abstract future problem for the DC region. It is already reshaping the area’s weather in observable, measurable ways — altering how hot it gets,
Winter weather in the DC region is notoriously fickle. A small change in temperature, sometimes just a degree or two, can mean the difference between snow, sleet, a glaze of
Every so often during a snowstorm, flakes start falling that look more like feathers than crystals – thick, clumpy, almost unreal. like small pancakes.
So what causes really big snowflakes?
It
DC’s relationship with snow is complicated. The region sits near the climatological rain–snow line, meaning truly major snowstorms are rare. But when they happen, they have enormous impacts.
Not all winter storms are created equal. In the DC region, a storm’s impact depends on far more than just how much snow or ice falls. Temperatures, precipitation intensity
Astronomical autumn begins with the fall equinox, the moment when Earth’s tilt relative to the sun places neither hemisphere in favor. Day and night are nearly equal in length,
Each autumn, clocks across most of the United States and Canada move back one hour as Daylight Saving Time ends. The shift marks the seasonal transition toward shorter days and
For DC-area residents, the arrival of the first freeze, the first sustained dip to 32 degrees or lower, is a key marker in the transition from autumn into winter. It
The final freeze of the season, the last time temperatures dip to 32 degrees or lower in spring, is closely watched by gardeners. It marks the unofficial start of planting
Astronomical summer begins with the summer solstice, the moment when the Northern Hemisphere is tilted most directly toward the sun. It’s the longest day of the year in terms
Astronomical spring officially begins with the spring or vernal equinox, a milestone that announces the transition from winter to spring in the Northern Hemisphere. The equinox, occurring around March 20
