Somersville, CA
Unincorporated community in Contra Costa County, California
Somersville is a small unincorporated community in Contra Costa County, California. It is 3.8 miles W of Clayton, the nearest town. Its ZIP code is 94509.
Somersville at a glance
- State
- California
- County
- Contra Costa County
- ZIP code
- 94509
- Nearest town
- Clayton (3.8 mi)
- Time zone
- America/Los Angeles
- Coordinates
- 37.9569, -121.8633
Weather in Somersville now
Loading the National Weather Service forecast…
Somersville weather by the hour
Somersville weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Somersville.
This week in Somersville
Sunrise, sunset and moon in Somersville
What is the weather usually like in Somersville?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 91°F average high
- Januarycoldest month · 40°F average low
- 12.6 inprecipitation per year · 320 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Somersville: April to June and October, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station ANTIOCH PUMPING PLT #3, CA US (USC00040232), adjusted for the elevation of Somersville.
Somersville weather month by month
Sunrise and sunset in Somersville through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:20 AM | 5:13 PM | 9 h 53 min |
| February | 6:55 AM | 5:47 PM | 10 h 52 min |
| March | 7:16 AM | 7:15 PM | 11 h 59 min |
| April | 6:30 AM | 7:44 PM | 13 h 14 min |
| May | 5:55 AM | 8:12 PM | 14 h 17 min |
| June | 5:42 AM | 8:33 PM | 14 h 50 min |
| July | 5:55 AM | 8:31 PM | 14 h 35 min |
| August | 6:21 AM | 8:02 PM | 13 h 40 min |
| September | 6:48 AM | 7:16 PM | 12 h 28 min |
| October | 7:15 AM | 6:31 PM | 11 h 16 min |
| November | 6:47 AM | 4:57 PM | 10 h 10 min |
| December | 7:14 AM | 4:50 PM | 9 h 35 min |
Times for the 15th of each month, local time (America/Los Angeles).
What is the weather like in Somersville?
Somersville has a cold semi-arid climate. The warmest month is July, with an average high of 91°F (33°C), and the coldest is January, with average lows of 40°F (5°C).
It gets about 12.6 inches (320 mm) of precipitation a year. The wettest month is January and the driest is July.
The best time to visit Somersville is April to June and 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 Somersville
The closest live webcam is Antioch › West: TV227 - SR-4 : Somerville Road, 3.6 miles N of Somersville.
Webcams: Windy.com · Traffic cameras: Caltrans. Distances in a straight line from Somersville.
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Map of Somersville, CA
Tap any road on the map to see it in Street View below. Map: © OpenStreetMap contributors.
Somersville Street View
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Open in Google Maps ›Towns near Somersville
Other communities near Somersville
Questions about Somersville
Where is Somersville, CA?
Somersville is an unincorporated community in Contra Costa County, California, 3.8 miles W of Clayton.
What county is Somersville in?
Somersville is in Contra Costa County, California.
What is the ZIP code of Somersville, CA?
The ZIP code for Somersville is 94509.
What is the nearest town to Somersville?
Clayton, 3.8 miles away.
Are there webcams near Somersville?
Yes. The closest is Antioch › West: TV227 - SR-4 : Somerville Road, 3.6 miles away.
What is the hottest month in Somersville?
July, with an average high of 91°F (33°C).
What is the coldest month in Somersville?
January, with an average low of 40°F (5°C).
How much does it rain in Somersville?
About 12.6 inches (320 mm) a year; the wettest month is January.
Does it snow in Somersville?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Somersville?
April to June and October, when temperatures are most pleasant and rainy days are fewer.
What climate does Somersville have?
Cold semi-arid (Köppen BSk).
Last updated: