VCPWA-Watershed Protection Hydrologic Data Server

Welcome to Ventura County Watershed Protection District Hydrologic Data Webpage. This page provides rain, stream, and evaporation data from the District's official gages in Ventura County, as well as other available data used in District planning studies.

Due to the complexity of the website and datasets, we STRONGLY urge you to read our file explaining how to download data from this website and any associated caveats by clicking on: Hydrodata Web Questions. Please read the file before you contact us with any questions regarding this site or our data sets.

For certified data or non-standard data not available on this website, please send a data request to the Hydrology Section as outlined in Hydrodata Web Questions document.

Official and Preliminary data are available by water year clicking on the station name and by selecting the water year and format selectors for each dataset. Additional Supplimental Reports for specific stations are available for download from each station's drop-down menus.

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Station 206 Information

Site Id: 206 Station Name: Somis-Balcom Canyon Latitude: 34° 18' 49.0" N Longitude: 118° 58' 18.0" W Datum: North American Datum 1927 Elevation: 800 feet Station Type: Standard Precipitation VCWPD Zone: Zone 3 (Calleguas Creek) NCDC Site Id: None Currently Active: No Associated Station(s): 206A - Somis-Fuller 206B - Somis-Fuller

Available Datasets

Dataset Name	Publish Type	Start Date		End Date
Rainfall: Daily Totals	Published Data	09/30/1960 08:00	-	10/01/1971 08:00

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Base Period Normal Monthly and Seasonal Precipitation**

Oct	Nov	Dec	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Season
0.48	2.22	2.27	3.3	3.59	3.03	1.08	0.13	0.03	0.02	0.08	0.26	16.47

Notes: **Base Period Normal is the October 1957 to September 1992 average. This average was selected since it is the best 35 year period that represents the long term average for multiple sites in Ventura County.

Interactive Chart for Period of Record

Circle Chart for Period of Record

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Summary of Historic Wettest and Driest Years and Effects of El Niño/La Nina

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Official and Supplemental Reports Published for This Station

Official Reports - Click Download button to download file
Select Report:	Rainfall Frequency Long Duration-Draft.pdf Rainfall Frequency Short Duration-Draft.pdf

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Rainfall: Daily Totals

Publish Type	Start Date		End Date
Published Data:	09/30/1960 08:00	-	10/01/1971 08:00
Unverifed Telemetry Data:	N/A

Daily Rainfall - Water Year Products
Select Water Year:	1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971
Formatted Daily Report:	Web Formatted Report (HTML)
Data Download: Select Format:	Web Formatted Table (HTML) Comma Separated File (CSV) JSON Data Format File XML Data Format File
For Daily Rainfall Plot:
Monthly Rainfall - Multiple Water Year Products
Select Water Year Range:	1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 to 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971
Formatted Monthly Report:	Web Formatted Report (HTML)
Data Download: Select Format:	Web Formatted Table (HTML) Comma Separated File (CSV) JSON Data Format File XML Data Format File

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Obsolete Reports and Data Files

Warning: These files are obsolete and should be used only if the data are not available from above choises.

Select a compiled dataset or summary from the list and click Download: Dataset:

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Data marked with 'P' are preliminary and subject to change until checked and evaluated. Data marked with 'U' are unverified and are subject to changed and evaluated. Unverified data may contain errors that have not been checked by Hydrology staff. Ventura County does not guarantee the accuracy of these data; please note that river flows may vary considerably during each day and from day to day.Oficial published data are marked with 'A '.