Howell Mountain, CA
Unincorporated community in Napa County, California
Howell Mountain is a small unincorporated community in Napa County, California. It is 0.3 miles S of Angwin, the nearest town. Its ZIP code is 94508.
Howell Mountain at a glance
- State
- California
- County
- Napa County
- ZIP code
- 94508
- Nearest town
- Angwin (0.3 mi)
- Time zone
- America/Los Angeles
- Coordinates
- 38.5814, -122.4500
Weather in Howell Mountain now
Loading the National Weather Service forecast…
Howell Mountain weather by the hour
Howell Mountain weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Howell Mountain.
This week in Howell Mountain
Sunrise, sunset and moon in Howell Mountain
What is the weather usually like in Howell Mountain?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 85°F average high
- Decembercoldest month · 39°F average low
- 39.7 inprecipitation per year · 1,009 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Howell Mountain: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station ANGWIN PACIFIC UNION COLLEGE, CA US (USC00040212), adjusted for the elevation of Howell Mountain.
Howell Mountain weather month by month
Sunrise and sunset in Howell Mountain through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:24 AM | 5:14 PM | 9 h 50 min |
| February | 6:58 AM | 5:49 PM | 10 h 50 min |
| March | 7:18 AM | 7:18 PM | 11 h 59 min |
| April | 6:31 AM | 7:47 PM | 13 h 16 min |
| May | 5:56 AM | 8:16 PM | 14 h 20 min |
| June | 5:43 AM | 8:37 PM | 14 h 54 min |
| July | 5:56 AM | 8:35 PM | 14 h 38 min |
| August | 6:22 AM | 8:05 PM | 13 h 42 min |
| September | 6:50 AM | 7:19 PM | 12 h 29 min |
| October | 7:17 AM | 6:33 PM | 11 h 15 min |
| November | 6:50 AM | 4:58 PM | 10 h 7 min |
| December | 7:18 AM | 4:51 PM | 9 h 32 min |
Times for the 15th of each month, local time (America/Los Angeles).
What is the weather like in Howell Mountain?
Howell Mountain has a warm-summer mediterranean climate. The warmest month is July, with an average high of 85°F (29°C), and the coldest is December, with average lows of 39°F (4°C).
It gets about 39.7 inches (1,009 mm) of precipitation a year. The wettest month is December and the driest is July.
The best time to visit Howell Mountain is June to 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 Howell Mountain
The closest live webcam is Middletown › North: SR-29: 29-175 Jct - North, 14.8 miles NW of Howell Mountain.
Webcams: Windy.com · Traffic cameras: Caltrans. Distances in a straight line from Howell Mountain.
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Map of Howell Mountain, CA
Tap any road on the map to see it in Street View below. Map: © OpenStreetMap contributors.
Howell Mountain 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 Howell Mountain
Other communities near Howell Mountain
- Veteran Heights1.0 mi SE
- Pope Valley2.7 mi NE
- Sanitarium2.8 mi SW
- Larkmead4.2 mi W
- Krug4.7 mi S
- Vineyard Valley Mobile Home Park subdivision4.9 mi S
- Aetna Springs5.3 mi N
- Thoman6.2 mi S
- Zinfandel6.8 mi S
- Zinfandel6.8 mi S
- Walter Springs7.1 mi NE
- Woodleaf8.4 mi W
- Mirabel11.5 mi NW
- Kellogg12.5 mi W
- Spanish Flat12.6 mi E
Questions about Howell Mountain
Where is Howell Mountain, CA?
Howell Mountain is an unincorporated community in Napa County, California, 0.3 miles S of Angwin.
What county is Howell Mountain in?
Howell Mountain is in Napa County, California.
What is the ZIP code of Howell Mountain, CA?
The ZIP code for Howell Mountain is 94508.
What is the nearest town to Howell Mountain?
Angwin, 0.3 miles away.
Are there webcams near Howell Mountain?
Yes. The closest is Middletown › North: SR-29: 29-175 Jct - North, 14.8 miles away.
What is the hottest month in Howell Mountain?
July, with an average high of 85°F (29°C).
What is the coldest month in Howell Mountain?
December, with an average low of 39°F (4°C).
How much does it rain in Howell Mountain?
About 39.7 inches (1,009 mm) a year; the wettest month is December.
Does it snow in Howell Mountain?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Howell Mountain?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Howell Mountain have?
Warm-summer mediterranean (Köppen Csb).
Last updated: