News & Features What is the spring equinox — and why it matters A look at the science and seasonal changes tied to the official start of astronomical spring. By Justin Grieser and Jason Samenow / May 29 2026 / 0 0 / Share Share to X Share to Bluesky Share to Facebook Share to LinkedIn Share by email
News & Features When does daylight saving time end? What to know about 'falling back' What to know about gaining an hour of sleep and losing evening daylight, as clocks fall back. By Justin Grieser and Jason Samenow / May 29 2026 / 0 0 / Share Share to X Share to Bluesky Share to Facebook Share to LinkedIn Share by email
DC Weather, Explained When does DC typically see its last freeze? A look at how the timing of D.C.’s last freeze can vary dramatically from year to year. By Jason Samenow / May 29 2026 / 0 0 / Share Share to X Share to Bluesky Share to Facebook Share to LinkedIn Share by email
DC Weather, Explained When does DC typically see its first freeze? A look at how the timing of D.C.’s first freeze can vary widely from year to year. By Jason Samenow / May 29 2026 / 0 0 / Share Share to X Share to Bluesky Share to Facebook Share to LinkedIn Share by email
News & Features What is the winter solstice — and why it matters A look at the science, traditions and seasonal significance of the shortest day of the year. By Justin Grieser and Jason Samenow / May 29 2026 / 0 0 / Share Share to X Share to Bluesky Share to Facebook Share to LinkedIn Share by email
News & Features When does daylight saving time start? What to know about 'springing forward' What to know about losing an hour of sleep, and gaining more evening daylight, as clocks spring forward. By Justin Grieser and Jason Samenow / May 29 2026 / 0 0 / Share Share to X Share to Bluesky Share to Facebook Share to LinkedIn Share by email
DC Weather, Explained Yes, thundersnow is real. Here’s how it happens. How thundersnow happens — and why thunder and lightning can occur during intense snowstorms. By Jason Samenow and Jeff Halverson / May 29 2026 / 0 0 / Share Share to X Share to Bluesky Share to Facebook Share to LinkedIn Share by email
Why forecasting snow is so hard in DC, and the storms that bring it Why snow forecasts in D.C. are so tricky — and the storm tracks that make or break them. By Jason Samenow / May 29 2026 / 0 0 / Share Share to X Share to Bluesky Share to Facebook Share to LinkedIn Share by email
DC Weather, Explained DC’s hottest and coldest days: A look at the city’s temperature records It has been as hot as 106 and as cold as minus-15 during the 1872-current climate record in Washington. By Ian Livingston / May 29 2026 / 0 0 / Share Share to X Share to Bluesky Share to Facebook Share to LinkedIn Share by email
DC Weather, Explained 100-degree days in Washington, DC It hits 100 or higher every couple years, and often in groups. By Ian Livingston / May 29 2026 / 0 0 / Share Share to X Share to Bluesky Share to Facebook Share to LinkedIn Share by email
DC Weather, Explained 80-degree lows were once rare in DC, but not anymore 80-degree lows have become much more frequent across history. In 2024 there were a record eight. By Ian Livingston / May 29 2026 / 0 0 / Share Share to X Share to Bluesky Share to Facebook Share to LinkedIn Share by email
DC Weather, Explained DC’s climate, by the numbers: Temperature and precipitation trends The city has toasty summers and moderate winters. It's also rather wet. By Ian Livingston / May 29 2026 / 0 0 / Share Share to X Share to Bluesky Share to Facebook Share to LinkedIn Share by email
