First and Last Frost Dates of Delaware with Map

  • SheelaBy
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Delaware’s weather changes across different parts of the state, affecting when plants can grow. In Lewes, plants can grow for 240 days, but in Hockessin, it’s only 198 days. This makes a big difference for gardeners and farmers.

Big cities like Wilmington, Dover, and Newark have longer growing times. But places further inland like Hockessin and Milford have shorter growing times. In these places, the last frost in spring can happen as late as April, and the first frost in fall can come as early as October.

This guide gives frost date info for different cities and towns in Delaware. It tells you which weather stations are closest and how far away they are. This helps gardeners and farmers plan when to plant and harvest better.

Delaware Frost Dates Map

Type or select your Delaware location in the selection box below, to find its frost dates.

Delaware Frost Dates Map

City Name

Delaware Frost Dates

Spring Last Frost
—
—
Fall First Frost
—
—
The nearest weather station to your location is — and is located at a distance of —.
These dates are based on NOAA Data with 30% probability derived from “U.S. Climate Normals 2020: U.S. Annual/Seasonal Climate Normals (1991-2020)”. This means there is a 30% chance that the first fall frost may occur before the shown date, and the last spring frost may occur after the shown date.

First & Last Frost Dates of Delaware Cities and Towns

This info comes from NCEI.gov’s U.S. Climate Normals 2020, looking at weather from 1991-2020. The frost dates here have a 30% chance of happening.

When we talk about First and Last frost dates, remember these aren’t exact. The “Last Spring Frost Date” means it’s usually safe to plant outside after this, but there’s still a small chance (30%) of frost later.

The “First Fall Frost Date” is when frost usually starts, but it might come a bit earlier (30% chance). Use these dates as a good guess for gardening – they’re usually right, but not always!

City Station ID Distance (mi) Fall First Frost Spring Last Frost Growing Season (Days)
Wilmington USC00079605 2.06 10/30 04/13 217.0
Dover USC00072730 1.28 10/31 04/09 223.0
Newark USC00076410 1.09 10/28 04/14 216.0
Middletown USC00076410 15.20 10/28 04/14 216.0
Bear USW00013781 4.29 10/28 04/12 216.0
Glasgow USC00076410 4.39 10/28 04/14 216.0
Brookside USC00076410 1.00 10/28 04/14 216.0
Hockessin USW00003761 6.86 10/19 04/24 198.0
Milford USC00073595 10.39 10/24 04/18 209.0
Smyrna USC00072730 11.84 10/31 04/09 223.0
Pike Creek Valley USC00076410 5.33 10/28 04/14 216.0
Claymont USC00365390 2.38 11/10 04/03 239.0
Seaford USC00073595 12.23 10/24 04/18 209.0
North Star USC00076410 6.57 10/28 04/14 216.0
Wilmington Manor USW00013781 1.30 10/28 04/12 216.0
Georgetown USW00013764 1.42 10/31 04/09 225.0
Millsboro USW00013764 7.68 10/31 04/09 225.0
Pike Creek USC00076410 4.86 10/28 04/14 216.0
Edgemoor USC00079605 2.76 10/30 04/13 217.0
Elsmere USC00079605 3.84 10/30 04/13 217.0
New Castle USW00013781 1.95 10/28 04/12 216.0
Clayton USC00072730 12.11 10/31 04/09 223.0
Laurel USW00013764 14.67 10/31 04/09 225.0
Camden USC00072730 3.01 10/31 04/09 223.0
Rising Sun-Lebanon USC00072730 3.07 10/31 04/09 223.0
Highland Acres USC00072730 1.98 10/31 04/09 223.0
Harrington USC00073595 7.44 10/24 04/18 209.0
Milton USW00013764 6.66 10/31 04/09 225.0
Lewes USC00075320 1.21 11/07 04/02 240.0
Dover Base Housing USC00072730 2.34 10/31 04/09 223.0
Selbyville USW00013764 17.49 10/31 04/09 225.0
Long Neck USC00075320 11.35 11/07 04/02 240.0
Ocean View USC00075320 16.94 11/07 04/02 240.0
Townsend USC00076410 19.10 10/28 04/14 216.0
Bridgeville USC00073595 5.30 10/24 04/18 209.0
Greenville USC00079605 3.04 10/30 04/13 217.0
Riverview USC00072730 8.31 10/31 04/09 223.0
Cheswold USC00072730 6.62 10/31 04/09 223.0
Delmar USW00013764 19.93 10/31 04/09 225.0
Kent Acres USC00072730 1.46 10/31 04/09 223.0
Millville USW00013764 15.98 10/31 04/09 225.0
Woodside East USC00072730 5.70 10/31 04/09 223.0
Delaware City USW00013781 6.59 10/28 04/12 216.0
Wyoming USC00072730 3.47 10/31 04/09 223.0
Lincoln USC00073595 9.04 10/24 04/18 209.0
Felton USC00072730 10.31 10/31 04/09 223.0
Rodney Village USC00072730 1.76 10/31 04/09 223.0
St. Georges USW00013781 8.58 10/28 04/12 216.0
Blades USC00073595 12.60 10/24 04/18 209.0
Bellefonte USC00079605 2.40 10/30 04/13 217.0
Rehoboth Beach USC00075320 6.22 11/07 04/02 240.0
Frederica USC00072730 9.75 10/31 04/09 223.0
Greenwood USC00073595 1.03 10/24 04/18 209.0
Bethany Beach USC00075320 17.80 11/07 04/02 240.0
Dagsboro USW00013764 11.45 10/31 04/09 225.0
Newport USW00013781 2.86 10/28 04/12 216.0
Frankford USW00013764 13.64 10/31 04/09 225.0
Ellendale USC00073595 8.28 10/24 04/18 209.0
South Bethany USC00075320 19.35 11/07 04/02 240.0
Arden USC00365390 3.29 11/10 04/03 239.0
Houston USC00073595 7.99 10/24 04/18 209.0
Dewey Beach USC00075320 7.75 11/07 04/02 240.0
Fenwick Island USW00013764 22.86 10/31 04/09 225.0
Odessa USW00013781 15.24 10/28 04/12 216.0
Bowers USC00072730 8.19 10/31 04/09 223.0
Magnolia USC00072730 5.45 10/31 04/09 223.0
Bethel USW00013764 16.26 10/31 04/09 225.0
Ardentown USC00365390 3.13 11/10 04/03 239.0
Slaughter Beach USC00075320 11.87 11/07 04/02 240.0
Ardencroft USC00365390 3.37 11/10 04/03 239.0
Kenton USC00072730 10.15 10/31 04/09 223.0
Little Creek USC00072730 3.38 10/31 04/09 223.0
Woodside USC00072730 6.19 10/31 04/09 223.0
Leipsic USC00072730 6.54 10/31 04/09 223.0
Henlopen Acres USC00075320 5.64 11/07 04/02 240.0
Viola USC00072730 8.01 10/31 04/09 223.0
Port Penn USW00013781 10.86 10/28 04/12 216.0
Farmington USC00073595 3.68 10/24 04/18 209.0
Hartly USC00072730 11.23 10/31 04/09 223.0

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