Keystone, DE

Unincorporated community in New Castle County, Delaware

Keystone is a small unincorporated community in New Castle County, Delaware. It is 0.8 miles S of Newport, the nearest town. Its ZIP code is 19804.

Keystone at a glance

State
Delaware
County
New Castle County
ZIP code
19804
Nearest town
Newport (0.8 mi)
Time zone
America/New York
Coordinates
39.7264, -75.6056

Weather in Keystone now

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Keystone weather by the hour

Keystone weather for the next 7 days

Source: National Weather Service (NOAA) · forecast for the coordinates of Keystone.

This week in Keystone

Sunrise, sunset and moon in Keystone

What is the weather usually like in Keystone?

Cfa
Humid subtropical climate
Köppen climate classification, calculated from the 1991–2020 normals

Average high and low temperature (°F)

21°39°57°74°92°41°26°Jan44°27°Feb53°34°Mar64°44°Apr74°53°May82°63°Jun87°68°Jul85°67°Aug78°59°Sep67°47°Oct56°37°Nov46°30°Dec

Average precipitation (inches)

3.2"Jan2.8"Feb4.2"Mar3.5"Apr3.6"May4.7"Jun4.4"Jul4.0"Aug4.4"Sep3.7"Oct3.1"Nov3.9"Dec

Best time to visit Keystone: May–June and August–September, with mild temperatures and fewer rainy days.

Source: NOAA NCEI U.S. Climate Normals 1991–2020, station WILMINGTON NEW CASTLE CO AP, DE US (USW00013781), adjusted for the elevation of Keystone.

Keystone weather month by month

January
41° 26°F
3.2 in of rain · 6 wet days❄ 6.1 in of snow
February
44° 27°F
2.8 in of rain · 6 wet days❄ 7.8 in of snow
March
53° 34°F
4.2 in of rain · 7 wet days❄ 3.1 in of snow
April
64° 44°F
3.5 in of rain · 7 wet days❄ 0.1 in of snow
May
74° 53°F
3.6 in of rain · 7 wet days
June
82° 63°F
4.7 in of rain · 7 wet days
July
87° 68°F
4.4 in of rain · 7 wet days
August
85° 67°F
4.0 in of rain · 6 wet days
September
78° 59°F
4.4 in of rain · 6 wet days
October
67° 47°F
3.7 in of rain · 6 wet days
November
56° 37°F
3.1 in of rain · 6 wet days❄ 0.2 in of snow
December
46° 30°F
3.9 in of rain · 7 wet days❄ 2.9 in of snow

Sunrise and sunset in Keystone through the year

MonthSunriseSunsetDaylight
January7:19 AM5:03 PM9 h 43 min
February6:53 AM5:39 PM10 h 46 min
March7:11 AM7:10 PM11 h 58 min
April6:23 AM7:41 PM13 h 18 min
May5:46 AM8:11 PM14 h 25 min
June5:32 AM8:33 PM15 h 1 min
July5:45 AM8:31 PM14 h 45 min
August6:13 AM8:00 PM13 h 46 min
September6:42 AM7:12 PM12 h 30 min
October7:11 AM6:24 PM11 h 13 min
November6:45 AM4:48 PM10 h 2 min
December7:14 AM4:40 PM9 h 25 min

Times for the 15th of each month, local time (America/New York).

What is the weather like in Keystone?

Keystone has a humid subtropical climate. The warmest month is July, with an average high of 87°F (30°C), and the coldest is January, with average lows of 26°F (-4°C).

It gets about 45.3 inches (1,152 mm) of precipitation a year. The wettest month is June and the driest is February. Snow is common: about 20 inches fall in an average year.

The best time to visit Keystone is May–June and August–September. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.

Webcams near Keystone

The closest live webcam is Liberty: CENTERVILLE RD @ BOXWOOD RD, 0.6 miles W of Keystone.

Liberty: CENTERVILLE RD @ BOXWOOD RDLiberty · 0.6 mi WOn Windy
Newport: MARSHALL ST @ JUSTIS STNewport · 0.8 mi SOn Windy
Prices Corner: DE 141 @ KIRKWOOD HWYPrices Corner · 1.1 mi NWOn Windy
Prices Corner: CENTERVILLE RD @ OLD CAPITOL TRAILPrices Corner · 1.1 mi NWOn Windy
Avalon: OLD CAPITOL TRAIL @ NEWPORT GAP PIKEAvalon · 1.2 mi WOn Windy
Prices Corner: CENTERVILLE RD @ GREENBANK RDPrices Corner · 1.2 mi NWOn Windy
Elsmere: DE 2 @ DE 100Elsmere · 1.2 mi NEOn Windy
Middleboro Manor: I 95 @ I 495 SPLITMiddleboro Manor · 1.4 mi SEOn Windy
Colony Hills: I 95 @ I 95 SB OFF-RAMP TO DE 141 SBColony Hills · 1.4 mi SOn Windy

Webcams: Windy.com. Distances in a straight line from Keystone.

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Map of Keystone, DE

Tap any road on the map to see it in Street View below. Map: © OpenStreetMap contributors.

Keystone Street View

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Towns near Keystone

Other communities near Keystone

Questions about Keystone

Where is Keystone, DE?

Keystone is an unincorporated community in New Castle County, Delaware, 0.8 miles S of Newport.

What county is Keystone in?

Keystone is in New Castle County, Delaware.

What is the ZIP code of Keystone, DE?

The ZIP code for Keystone is 19804.

What is the nearest town to Keystone?

Newport, 0.8 miles away.

Are there webcams near Keystone?

Yes. The closest is Liberty: CENTERVILLE RD @ BOXWOOD RD, 0.6 miles away.

What is the hottest month in Keystone?

July, with an average high of 87°F (30°C).

What is the coldest month in Keystone?

January, with an average low of 26°F (-4°C).

How much does it rain in Keystone?

About 45.3 inches (1,152 mm) a year; the wettest month is June.

Does it snow in Keystone?

Yes, about 20 inches of snow fall in an average year.

When is the best time to visit Keystone?

May–June and August–September, when temperatures are most pleasant and rainy days are fewer.

What climate does Keystone have?

Humid subtropical (Köppen Cfa).

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