Oleum, CA
Unincorporated community in Contra Costa County, California
Oleum is a small unincorporated community in Contra Costa County, California. It is 0.7 miles SW of Rodeo, the nearest town. Its ZIP code is 94525.
Oleum at a glance
- State
- California
- County
- Contra Costa County
- ZIP code
- 94525
- Nearest town
- Rodeo (0.7 mi)
- Time zone
- America/Los Angeles
- Coordinates
- 38.0447, -122.2472
Weather in Oleum now
Loading the National Weather Service forecast…
Oleum weather by the hour
Oleum weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Oleum.
This week in Oleum
Sunrise, sunset and moon in Oleum
What is the weather usually like in Oleum?
Köppen climate classification, calculated from the 1991–2020 normals
- Septemberwarmest month · 86°F average high
- Januarycoldest month · 42°F average low
- 21.5 inprecipitation per year · 546 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Oleum: April to June and October, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station VALLEJO, CA US (USC00049219), adjusted for the elevation of Oleum.
Oleum weather month by month
Sunrise and sunset in Oleum through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:22 AM | 5:14 PM | 9 h 52 min |
| February | 6:57 AM | 5:49 PM | 10 h 52 min |
| March | 7:18 AM | 7:17 PM | 11 h 59 min |
| April | 6:31 AM | 7:46 PM | 13 h 14 min |
| May | 5:56 AM | 8:14 PM | 14 h 17 min |
| June | 5:44 AM | 8:34 PM | 14 h 50 min |
| July | 5:57 AM | 8:32 PM | 14 h 35 min |
| August | 6:23 AM | 8:03 PM | 13 h 40 min |
| September | 6:49 AM | 7:18 PM | 12 h 28 min |
| October | 7:16 AM | 6:32 PM | 11 h 16 min |
| November | 6:48 AM | 4:58 PM | 10 h 9 min |
| December | 7:16 AM | 4:51 PM | 9 h 35 min |
Times for the 15th of each month, local time (America/Los Angeles).
What is the weather like in Oleum?
Oleum has a warm-summer mediterranean climate. The warmest month is September, with an average high of 86°F (30°C), and the coldest is January, with average lows of 42°F (6°C).
It gets about 21.5 inches (546 mm) of precipitation a year. The wettest month is December and the driest is July.
The best time to visit Oleum 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 Oleum
The closest live webcam is Oleum › West: TVH39 - I-80 : Cummings Parkway Onramp, 0.5 miles E of Oleum.
Webcams: Windy.com · Traffic cameras: Caltrans. Distances in a straight line from Oleum.
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Map of Oleum, CA
Tap any road on the map to see it in Street View below. Map: © OpenStreetMap contributors.
Oleum Street View
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Open in Google Maps ›Towns near Oleum
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Questions about Oleum
Where is Oleum, CA?
Oleum is an unincorporated community in Contra Costa County, California, 0.7 miles SW of Rodeo.
What county is Oleum in?
Oleum is in Contra Costa County, California.
What is the ZIP code of Oleum, CA?
The ZIP code for Oleum is 94525.
What is the nearest town to Oleum?
Rodeo, 0.7 miles away.
Are there webcams near Oleum?
Yes. The closest is Oleum › West: TVH39 - I-80 : Cummings Parkway Onramp, 0.5 miles away.
What is the hottest month in Oleum?
September, with an average high of 86°F (30°C).
What is the coldest month in Oleum?
January, with an average low of 42°F (6°C).
How much does it rain in Oleum?
About 21.5 inches (546 mm) a year; the wettest month is December.
Does it snow in Oleum?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Oleum?
April to June and October, when temperatures are most pleasant and rainy days are fewer.
What climate does Oleum have?
Warm-summer mediterranean (Köppen Csb).
Last updated: