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Field team monitoring a Ventura County creek
Environment data

Ventura County environment data: air quality, precipitation, drought.

Monitor AirNow AQI, EPA AQS regulatory averages, NOAA precipitation, and weekly U.S. Drought Monitor status.

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Environment metrics

Signals that shape compliance and policy.

AirNow real-time AQI, EPA AQS daily averages, NOAA Climate Data Online precipitation, and weekly drought status keep the coalition aligned on risk.

Real-time air quality

AirNow AQI by ZIP · Ventura County

AirNow current observations by ZIP across Ventura County. Toggle between point markers and ZIP choropleth.

Source: AirNow AQI · Map tiles © OpenStreetMap contributors.

Key signals

Right now in Ventura County

Hourly AQI, regulatory averages, and weekly drought coverage.

Live conditions (Google)

Ventura County snapshot

AQI: 81 · Excellent air quality · PM10

Weather: 58°F · Mostly cloudy · 95% humidity

Wind: 5 mph · 10% precip

Pollen: Tree · Very Low

View location map

Daily heatmap

PM2.5 daily pattern

Source: EPA AQS

Daily heatmap

Precipitation pattern

Source: NOAA Climate Data Online

Quick signals

Fast readouts for planning.

Seasonal temperature, drought severity, and ozone averages at a glance.

AirNow AQI (PM2.5)

Real-time AirNow AQI (preliminary).

Source: AirNow

Interactive view · select a time range below.

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PM2.5 daily average

Daily PM2.5 air quality average.

Source: EPA AQS

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Ozone daily average

Daily ozone air quality average.

Source: EPA AQS

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Daily precipitation

NOAA daily precipitation totals.

Source: NOAA Climate Data Online

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Drought: D1 (sq mi)

Area in moderate drought (weekly).

Source: US Drought Monitor

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Drought: D3 (sq mi)

Area in extreme drought (weekly).

Source: US Drought Monitor

Interactive view · select a time range below.

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Data sources

Where the environment data comes from.

Sources include AirNow AQI, EPA’s Air Quality System (AQS), NOAA Climate Data Online, and the U.S. Drought Monitor.

EPA AQS Daily Summary

US EPA · API · Cadence: Weekly Public Refresh · Next: January 4, 2026

Latest data: Sep 30, 2025 · Checked: Mar 2, 2026 · Lag: Up to 1 week for public Data Mart; longer for agency submissions

AirNow AQI (Current)

US EPA · API · Cadence: Hourly · Next: Within 1 hour

Latest data: Jan 18, 2026 · Checked: Mar 2, 2026 · Lag: <1 hour

U.S. Drought Monitor (County Stats)

USDM/NDMC/NOAA/USDA · API/download · Cadence: Weekly · Next: January 8, 2026

Latest data: Feb 24, 2026 · Checked: Mar 2, 2026 · Lag: ~2 days

NOAA Daily Climate Observations (GHCN-Daily via CDO)

NOAA/NCEI · API · Cadence: Daily · Next: January 5, 2026 (typical)

Latest data: Dec 28, 2025 · Checked: Mar 2, 2026 · Lag: Few days