Heather Knolls, MD
Unincorporated community in Calvert County, Maryland
Heather Knolls is a small unincorporated community in Calvert County, Maryland. It is 3.9 miles SW of Prince Frederick, the nearest town. Its ZIP code is 20639.
Heather Knolls at a glance
- State
- Maryland
- County
- Calvert County
- ZIP code
- 20639
- Nearest town
- Prince Frederick (3.9 mi)
- Time zone
- America/New York
- Coordinates
- 38.5900, -76.5486
Weather in Heather Knolls now
Loading the National Weather Service forecast…
Heather Knolls weather by the hour
Heather Knolls weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Heather Knolls.
This week in Heather Knolls
Sunrise, sunset and moon in Heather Knolls
What is the weather usually like in Heather Knolls?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 85°F average high
- Januarycoldest month · 25°F average low
- 48.1 inprecipitation per year · 1,222 mm
- 15.1 insnowfall per year · 38 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Heather Knolls: May–June and August–September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station MECHANICSVILLE 5 NE, MD US (USC00185865), adjusted for the elevation of Heather Knolls.
Heather Knolls weather month by month
Sunrise and sunset in Heather Knolls through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:20 AM | 5:10 PM | 9 h 49 min |
| February | 6:55 AM | 5:45 PM | 10 h 50 min |
| March | 7:15 AM | 7:14 PM | 11 h 58 min |
| April | 6:28 AM | 7:44 PM | 13 h 15 min |
| May | 5:52 AM | 8:12 PM | 14 h 19 min |
| June | 5:39 AM | 8:33 PM | 14 h 54 min |
| July | 5:52 AM | 8:31 PM | 14 h 38 min |
| August | 6:19 AM | 8:02 PM | 13 h 42 min |
| September | 6:46 AM | 7:15 PM | 12 h 29 min |
| October | 7:14 AM | 6:29 PM | 11 h 15 min |
| November | 6:46 AM | 4:54 PM | 10 h 7 min |
| December | 7:15 AM | 4:47 PM | 9 h 32 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in Heather Knolls?
Heather Knolls has a humid subtropical climate. The warmest month is July, with an average high of 85°F (30°C), and the coldest is January, with average lows of 25°F (-4°C).
It gets about 48.1 inches (1,222 mm) of precipitation a year. The wettest month is September and the driest is February. Snow is common: about 15 inches fall in an average year.
The best time to visit Heather Knolls 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 Heather Knolls
The closest live webcam is Deale › South: Herrington Harbour North - Town Point Marina, 12.7 miles N of Heather Knolls.
Webcams: Windy.com. Distances in a straight line from Heather Knolls.
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Map of Heather Knolls, MD
Tap any road on the map to see it in Street View below. Map: © OpenStreetMap contributors.
Heather Knolls Street View
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Open in Google Maps ›Towns near Heather Knolls
Other communities near Heather Knolls
- Tanglewood0.6 mi SE
- Poplar Woods0.9 mi SE
- Baden Estates1.0 mi E
- Woodwind Estates1.1 mi N
- Angelica1.3 mi E
- Rolling Acres1.7 mi N
- Wilson1.7 mi NE
- Bess-Mar Estates1.7 mi NW
- Tranquility1.8 mi N
- Tobacco Woods2.2 mi NE
- Dares2.2 mi S
- Queensberry2.3 mi SW
- Willowbrook Hills2.4 mi SW
- Neeld Estates2.4 mi NE
- Turners Field2.5 mi W
Questions about Heather Knolls
Where is Heather Knolls, MD?
Heather Knolls is an unincorporated community in Calvert County, Maryland, 3.9 miles SW of Prince Frederick.
What county is Heather Knolls in?
Heather Knolls is in Calvert County, Maryland.
What is the ZIP code of Heather Knolls, MD?
The ZIP code for Heather Knolls is 20639.
What is the nearest town to Heather Knolls?
Prince Frederick, 3.9 miles away.
Are there webcams near Heather Knolls?
Yes. The closest is Deale › South: Herrington Harbour North - Town Point Marina, 12.7 miles away.
What is the hottest month in Heather Knolls?
July, with an average high of 85°F (30°C).
What is the coldest month in Heather Knolls?
January, with an average low of 25°F (-4°C).
How much does it rain in Heather Knolls?
About 48.1 inches (1,222 mm) a year; the wettest month is September.
Does it snow in Heather Knolls?
Yes, about 15 inches of snow fall in an average year.
When is the best time to visit Heather Knolls?
May–June and August–September, when temperatures are most pleasant and rainy days are fewer.
What climate does Heather Knolls have?
Humid subtropical (Köppen Cfa).
Last updated: