Riverdale, DE
Unincorporated community in Sussex County, Delaware
Riverdale is a small unincorporated community in Sussex County, Delaware. It is 2.5 miles NE of Long Neck, the nearest town. Its ZIP code is 19939.
Riverdale at a glance
- State
- Delaware
- County
- Sussex County
- ZIP code
- 19939
- Nearest town
- Long Neck (2.5 mi)
- Time zone
- America/New York
- Coordinates
- 38.5939, -75.1917
Weather in Riverdale now
Loading the National Weather Service forecast…
Riverdale weather by the hour
Riverdale weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Riverdale.
This week in Riverdale
Sunrise, sunset and moon in Riverdale
What is the weather usually like in Riverdale?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 88°F average high
- Januarycoldest month · 29°F average low
- 43.9 inprecipitation per year · 1,115 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Riverdale: May–June and September–October, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station GEORGETOWN SUSSEX CO AP, DE US (USW00013764), adjusted for the elevation of Riverdale.
Riverdale weather month by month
Sunrise and sunset in Riverdale through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:15 AM | 5:05 PM | 9 h 49 min |
| February | 6:49 AM | 5:39 PM | 10 h 50 min |
| March | 7:10 AM | 7:09 PM | 11 h 58 min |
| April | 6:22 AM | 7:38 PM | 13 h 15 min |
| May | 5:47 AM | 8:07 PM | 14 h 19 min |
| June | 5:34 AM | 8:28 PM | 14 h 54 min |
| July | 5:47 AM | 8:26 PM | 14 h 38 min |
| August | 6:13 AM | 7:56 PM | 13 h 42 min |
| September | 6:41 AM | 7:10 PM | 12 h 29 min |
| October | 7:08 AM | 6:24 PM | 11 h 15 min |
| November | 6:41 AM | 4:49 PM | 10 h 7 min |
| December | 7:09 AM | 4:42 PM | 9 h 32 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in Riverdale?
Riverdale has a humid subtropical climate. The warmest month is July, with an average high of 88°F (31°C), and the coldest is January, with average lows of 29°F (-2°C).
It gets about 43.9 inches (1,115 mm) of precipitation a year. The wettest month is September and the driest is February.
The best time to visit Riverdale is May–June and September–October. 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 Riverdale
The closest live webcam is Harmon: DE 24 @ MOUNT JOY RD, 1.5 miles NW of Riverdale.
Webcams: Windy.com. Distances in a straight line from Riverdale.
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Map of Riverdale, DE
Tap any road on the map to see it in Street View below. Map: © OpenStreetMap contributors.
Riverdale Street View
Drag the image to look around and tap the arrows on the ground to move. If it says there is no imagery, tap a nearby street on the map above.
Open in Google Maps ›Towns near Riverdale
Other communities near Riverdale
- Riverdale0.4 mi E
- Captains Grant Mobile Home Park0.7 mi NE
- Orchard Manor0.8 mi NE
- Gull Point1.0 mi W
- Warwick Park1.0 mi W
- Israel Haul1.1 mi S
- Driftwood Village Mobile Home Park1.1 mi N
- The Landing1.2 mi W
- River Village II Mobile Home Park1.4 mi N
- River Village Mobile Home Park1.6 mi N
- Sandy Landing1.7 mi SE
- Bullseye1.7 mi W
- West Beach1.8 mi SE
- River Breeze2.1 mi N
- Trinity2.1 mi N
Questions about Riverdale
Where is Riverdale, DE?
Riverdale is an unincorporated community in Sussex County, Delaware, 2.5 miles NE of Long Neck.
What county is Riverdale in?
Riverdale is in Sussex County, Delaware.
What is the ZIP code of Riverdale, DE?
The ZIP code for Riverdale is 19939.
What is the nearest town to Riverdale?
Long Neck, 2.5 miles away.
Are there webcams near Riverdale?
Yes. The closest is Harmon: DE 24 @ MOUNT JOY RD, 1.5 miles away.
What is the hottest month in Riverdale?
July, with an average high of 88°F (31°C).
What is the coldest month in Riverdale?
January, with an average low of 29°F (-2°C).
How much does it rain in Riverdale?
About 43.9 inches (1,115 mm) a year; the wettest month is September.
Does it snow in Riverdale?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Riverdale?
May–June and September–October, when temperatures are most pleasant and rainy days are fewer.
What climate does Riverdale have?
Humid subtropical (Köppen Cfa).
Last updated: