Irrigated agriculture fields in Ventura County

Water data

Ventura County water data: streamflow, rainfall, drought, and evapotranspiration.

Track VCPWA streamflow and rainfall, CIMIS evapotranspiration, and weekly U.S. Drought Monitor signals for Ventura County decision-making.

Join the WHEEL briefings View metrics

Water metrics

Track what is moving across Ventura County.

Daily hydrology from VCPWA gages, CIMIS evapotranspiration, and weekly drought status are combined so coalition partners can see shifts quickly.

Read WHEEL updates

ZIP choropleth

Water demand signals by ZIP

Source: California DWR CIMIS (daily evapotranspiration + precipitation).

Live conditions (Google)

Ventura County weather context

Current: 59°F · Partly cloudy · 95% humidity

Wind: 4 mph · 5% precip

AQI: 79 · Good air quality

View location map

Daily heatmap

Streamflow pattern

Source: VCPWA Hydrology

Daily heatmap

Rainfall pattern

Source: VCPWA Hydrology

Daily streamflow (VCPWA)

Daily average flow across Ventura County stream gages.

Source: VCPWA Hydrology

Interactive view · select a time range below.

Generating insights...

Loading data...

Daily rainfall totals (VCPWA)

Daily rainfall totals by station.

Source: VCPWA Hydrology

Interactive view · select a time range below.

Generating insights...

Loading data...

US Drought Monitor: D0 (sq mi)

Area in abnormally dry conditions (weekly).

Source: US Drought Monitor

Interactive view · select a time range below.

Generating insights...

Loading data...

US Drought Monitor: D2 (sq mi)

Area in severe drought conditions (weekly).

Source: US Drought Monitor

Interactive view · select a time range below.

Generating insights...

Loading data...

Data sources

Every station, tracked.

All Ventura County stations from VCPWA plus statewide drought monitoring sources.

CIMIS ZIP Daily Signals

CA Dept. of Water Resources · API/CSV · Cadence: Daily · Next: January 3, 2026

Latest data: Jan 17, 2026 · Checked: Mar 2, 2026 · Lag: <1 day

USGS Daily Water Data

USGS · API · Cadence: Daily · Next: January 3, 2026

Latest data: Dec 29, 2025 · Checked: Mar 2, 2026 · Lag: <1 day for provisional; approved after review

VCPWA Daily Rainfall

Ventura County Public Works Agency · CSV download · Cadence: Daily · Next: Within hours (near real-time)

Latest data: Mar 1, 2026 · Checked: Mar 2, 2026 · Lag: Hours

VCPWA Daily Streamflow

Ventura County Public Works Agency · CSV download · Cadence: Daily · Next: Within hours (near real-time)

Latest data: Mar 1, 2026 · Checked: Mar 2, 2026 · Lag: Hours

CDEC Sensor Data

CA Dept. of Water Resources · CSV API · Cadence: Near-real-time · Next: Within hours (near real-time)

Latest data: Dec 31, 2025 · Checked: Mar 2, 2026 · Lag: Hours

Water Quality Portal Results

EPA/USGS/USDA · API · Cadence: Variable · Next: January 7, 2026 (next Wed refresh)

Latest data: Mar 1, 2026 · Checked: Mar 2, 2026 · Lag: Days to weeks (depends on agency submissions)