Harman US

District of Columbia Frost Dates

The District of Columbia has an urban, relatively mild growing environment compared with many nearby inland locations. Gardeners still watch for surprise spring frosts, but the city usually warms earlier than outer suburbs and sees less lingering cold than more rural pockets.

Look up your exact frost dates

Frost timing shifts across District of Columbia with elevation and distance from water. Enter your ZIP code for dates from your nearest weather station.

District of Columbia locations

ZIPAreaHardiness zone
20001 Washington 8a
20002 Washington 8a
20003 Washington 8a
20007 Washington 7b
20016 Washington 7b
20017 Washington 7b
20018 Washington 7b
20019 Washington 8a
20024 Washington 8a
20032 Washington 8a
20064 Washington 7b
20250 Washington 8a
20260 Washington 8a
20319 Washington 8a
20373 Washington 8a
20388 Washington 8a
20390 Washington 8a
20422 Washington 7b
20510 Washington 8a
20540 Washington 8a
20004 Washington -
20005 Washington 8a
20006 Washington 8a
20008 Washington 7b
20009 Washington 7b
20010 Washington 7b
20011 Washington 7b
20012 Washington 7b
20015 Washington 7b
20020 Washington 7b
20036 Washington 8a
20037 Washington 8a
20045 Washington 8a
20052 Washington 8a
20057 Washington 7b
20059 Washington -
20204 Washington 8a
20220 Washington 8a
20230 Washington 8a
20240 Washington 8a
20245 Washington 8a
20317 Washington 7b
20408 Washington 8a
20415 Washington 8a
20418 Washington 8a
20427 Washington 8a
20431 Washington 8a
20515 Washington -
20520 Washington 8a
20530 Washington 8a
20535 Washington 8a
20542 Washington 7b
20551 Washington 8a
20560 Washington 8a
20565 Washington 8a
20566 Washington 8a
20591 Washington 8a

Source: NOAA 1991–2020 U.S. Climate Normals (public domain) and USDA 2023 Plant Hardiness Zone Map. Page updated Aug 4, 2026.