Knollwood, MD
Unincorporated community in Montgomery County, Maryland
Knollwood is a small unincorporated community in Montgomery County, Maryland. It is 2.0 miles W of Potomac, the nearest town. Its ZIP code is 20817.
Knollwood at a glance
- State
- Maryland
- County
- Montgomery County
- ZIP code
- 20817
- Nearest town
- Potomac (2.0 mi)
- Time zone
- America/New York
- Coordinates
- 39.0211, -77.1578
Weather in Knollwood now
Loading the National Weather Service forecast…
Knollwood weather by the hour
Knollwood weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Knollwood.
This week in Knollwood
Sunrise, sunset and moon in Knollwood
What is the weather usually like in Knollwood?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 87°F average high
- Januarycoldest month · 27°F average low
- 41.3 inprecipitation per year · 1,050 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Knollwood: May–June and August–September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station ROCKVILLE 1 NE, MD US (USC00187705), adjusted for the elevation of Knollwood.
Knollwood weather month by month
Sunrise and sunset in Knollwood through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:24 AM | 5:11 PM | 9 h 47 min |
| February | 6:58 AM | 5:47 PM | 10 h 49 min |
| March | 7:18 AM | 7:16 PM | 11 h 58 min |
| April | 6:30 AM | 7:47 PM | 13 h 17 min |
| May | 5:53 AM | 8:16 PM | 14 h 22 min |
| June | 5:40 AM | 8:37 PM | 14 h 56 min |
| July | 5:54 AM | 8:35 PM | 14 h 41 min |
| August | 6:20 AM | 8:05 PM | 13 h 44 min |
| September | 6:48 AM | 7:18 PM | 12 h 29 min |
| October | 7:17 AM | 6:31 PM | 11 h 14 min |
| November | 6:50 AM | 4:56 PM | 10 h 5 min |
| December | 7:18 AM | 4:48 PM | 9 h 29 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in Knollwood?
Knollwood has a humid subtropical climate. The warmest month is July, with an average high of 87°F (31°C), and the coldest is January, with average lows of 27°F (-3°C).
It gets about 41.3 inches (1,050 mm) of precipitation a year. The wettest month is September and the driest is February.
The best time to visit Knollwood 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 Knollwood
The closest live webcam is Garrett Park › South-east: Dulcet Drive West - Academy Park Drive, 3.2 miles E of Knollwood.
Webcams: Windy.com. Distances in a straight line from Knollwood.
Do you know Knollwood? Tell us about it
Help other travelers: share what makes Knollwood special. We review every message before publishing it.
Map of Knollwood, MD
Tap any road on the map to see it in Street View below. Map: © OpenStreetMap contributors.
Knollwood 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 Knollwood
Other communities near Knollwood
- Wildwood Hills0.4 mi E
- Lelands Corner0.6 mi S
- Rose Hill Estates0.7 mi S
- McAuley Park1.2 mi W
- Stratton Woods1.3 mi E
- Georgetown Village1.4 mi E
- Emery Corners2.0 mi S
- Wyngate2.0 mi E
- Wildwood Manor2.1 mi E
- Woodhaven2.3 mi SE
- Williamsburg Estates2.5 mi W
- Bannockburn Estates2.6 mi S
- Cohasset2.7 mi SE
- Sonoma2.7 mi SE
- Pooks Hill2.8 mi E
Questions about Knollwood
Where is Knollwood, MD?
Knollwood is an unincorporated community in Montgomery County, Maryland, 2.0 miles W of Potomac.
What county is Knollwood in?
Knollwood is in Montgomery County, Maryland.
What is the ZIP code of Knollwood, MD?
The ZIP code for Knollwood is 20817.
What is the nearest town to Knollwood?
Potomac, 2.0 miles away.
Are there webcams near Knollwood?
Yes. The closest is Garrett Park › South-east: Dulcet Drive West - Academy Park Drive, 3.2 miles away.
What is the hottest month in Knollwood?
July, with an average high of 87°F (31°C).
What is the coldest month in Knollwood?
January, with an average low of 27°F (-3°C).
How much does it rain in Knollwood?
About 41.3 inches (1,050 mm) a year; the wettest month is September.
Does it snow in Knollwood?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Knollwood?
May–June and August–September, when temperatures are most pleasant and rainy days are fewer.
What climate does Knollwood have?
Humid subtropical (Köppen Cfa).
Last updated: