River Mills, MD
Unincorporated community in Howard County, Maryland
River Mills is a small unincorporated community in Howard County, Maryland. It is 1.1 miles W of Ellicott City, the nearest town. Its ZIP code is 21043.
River Mills at a glance
- State
- Maryland
- County
- Howard County
- ZIP code
- 21043
- Nearest town
- Ellicott City (1.1 mi)
- Time zone
- America/New York
- Coordinates
- 39.2750, -76.8131
Weather in River Mills now
Loading the National Weather Service forecast…
River Mills weather by the hour
River Mills weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of River Mills.
This week in River Mills
Sunrise, sunset and moon in River Mills
What is the weather usually like in River Mills?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 87°F average high
- Januarycoldest month · 27°F average low
- 51.0 inprecipitation per year · 1,296 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit River Mills: May–June and August–September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station CYLBURN, MD US (USC00182308), adjusted for the elevation of River Mills.
River Mills weather month by month
Sunrise and sunset in River Mills through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:23 AM | 5:09 PM | 9 h 46 min |
| February | 6:57 AM | 5:45 PM | 10 h 48 min |
| March | 7:16 AM | 7:15 PM | 11 h 58 min |
| April | 6:28 AM | 7:46 PM | 13 h 17 min |
| May | 5:51 AM | 8:15 PM | 14 h 23 min |
| June | 5:38 AM | 8:37 PM | 14 h 58 min |
| July | 5:51 AM | 8:34 PM | 14 h 42 min |
| August | 6:19 AM | 8:04 PM | 13 h 45 min |
| September | 6:47 AM | 7:17 PM | 12 h 29 min |
| October | 7:15 AM | 6:29 PM | 11 h 14 min |
| November | 6:49 AM | 4:54 PM | 10 h 4 min |
| December | 7:18 AM | 4:46 PM | 9 h 28 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in River Mills?
River Mills 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 27°F (-3°C).
It gets about 51.0 inches (1,296 mm) of precipitation a year. The wettest month is May and the driest is February.
The best time to visit River Mills 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 River Mills
The closest live webcam is Arbutus › South, 6.2 miles SE of River Mills.
Webcams: Windy.com. Distances in a straight line from River Mills.
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Map of River Mills, MD
Tap any road on the map to see it in Street View below. Map: © OpenStreetMap contributors.
River Mills Street View
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Open in Google Maps ›Towns near River Mills
Other communities near River Mills
- Jeffers Hill5.1 mi S
- Woodland Village5.3 mi S
- Pfeiffer Corners5.5 mi S
- Sewells Orchard5.5 mi S
- Sewells Orchard5.5 mi S
- Stevens Forest5.5 mi S
- Thompsons Purchase5.6 mi S
- Timberview5.7 mi SE
- Sebring5.9 mi SW
- Sebring5.9 mi SW
- Hawthorn North5.9 mi SW
- Woodleigh5.9 mi SW
- Annetta Gardens6.0 mi S
- Owen Brown6.1 mi S
- Village of Deep Run6.1 mi S
Questions about River Mills
Where is River Mills, MD?
River Mills is an unincorporated community in Howard County, Maryland, 1.1 miles W of Ellicott City.
What county is River Mills in?
River Mills is in Howard County, Maryland.
What is the ZIP code of River Mills, MD?
The ZIP code for River Mills is 21043.
What is the nearest town to River Mills?
Ellicott City, 1.1 miles away.
Are there webcams near River Mills?
Yes. The closest is Arbutus › South, 6.2 miles away.
What is the hottest month in River Mills?
July, with an average high of 87°F (30°C).
What is the coldest month in River Mills?
January, with an average low of 27°F (-3°C).
How much does it rain in River Mills?
About 51.0 inches (1,296 mm) a year; the wettest month is May.
Does it snow in River Mills?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit River Mills?
May–June and August–September, when temperatures are most pleasant and rainy days are fewer.
What climate does River Mills have?
Humid subtropical (Köppen Cfa).
Last updated: