Enjoying this weather? (John Sonderman/Flickr)

The record high temperature for Feb. 8 has been broken. The high temperature came in the 12 o’clock hour — 74 degrees (!!!) — thanks to lots of sunshine and a strong wind from the west. The record at National, originally set in 1900, is 68 degrees. It was tied in 2015, but hasn’t been surpassed until today.

This is classic down-slope warming. As air descends, it warms up. First law of thermodynamics. When the wind comes from the west, the D.C. metro tends to be warmer because air is flowing down off the mountains. All three airports set new records for the date.

After a warm spell, snow could be on the way for the D.C. region. Capital Weather Gang's Jason Samenow tells us how much snow might fall in the region. (Claritza Jimenez/The Washington Post)

Feb. 8 records

Washington, D.C.:  68 degrees (1900) → 74 degrees (2017)

BWI:  70 degrees (1965) → 72 degrees (2017)

Dulles Airport:  70 degrees (1965) → 71 degrees (2017)


So far this winter, warm days have far outnumbered the cool ones.

Brace for a change, though. At 10 a.m. tomorrow, the temperature will have dropped 30 degrees in the D.C. metro. By Friday morning, it will be 40 degrees cooler.


Forecast temperature change between 10 a.m. Wednesday and 10 a.m. Thursday. (Washington Post/Capital Weather gang)