The first freeze of the season is expected to happen tonight in Arlington.
With overnight temperatures expected to dip as low as 30 degrees, now is the time to protect sensitive plants and to turn off the valves leading to outdoor water pipes and hose bibbs, allowing them to drain.
More from the National Weather Service:
953 AM EDT Thu Nov 4 2021
…FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM EDT FRIDAY…
* WHAT…Sub-freezing temperatures as low as 30 expected.
* WHERE…In Maryland, Southern Baltimore, Prince Georges, Anne Arundel and Charles Counties. In District of Columbia, District of Columbia. In Virginia, Arlington/Falls Church/Alexandria, and King George County.
* WHEN…From 2 AM to 9 AM EDT Friday.
* IMPACTS…Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above-ground pipes to protect them from freezing.
The first freeze signals the end of the growing season and the end of Frost Advisories and Freeze Warnings until next season. The growing season has already ended in the outer reaches of the D.C. area.
GROWING SEASON OVER FOR MOST OF THE DMV: After last nights widespread freezing temperatures. Growing season has ended for much of the region. Frost & freeze headlines will no longer be issued for the areas listed below until Spring 2022. #vawx #mdwx #wvwx pic.twitter.com/hMuBsIpPnv
— Washingtonian Weather Geeks (@WashingtonianWx) November 3, 2021