Environment
The creeks and the lakes, the rain and the drought, the ground under the town and what lives on it.
Reservoir storage: Oroville, Shasta, Black Butte (DWR CDEC)43% fullLake Oroville, Oct 25Creek & river flows (USGS + DWR CDEC gauges)103 cfsButte Creek near Chico, 87% of usualUS Drought Monitor, Butte County100%of Butte County abnormally dry or in drought, week of 2026-10-20Earthquakes within 150 km (USGS)138earthquakes within 150 km in the last 30 days
Water
- Creek & river flows (USGS + DWR CDEC gauges)Flow and height of Butte Creek, Big Chico Creek and the Sacramento River.
- Reservoir storage: Oroville, Shasta, Black Butte (DWR CDEC)Lake Oroville, Shasta Lake and Black Butte Lake storage, day by day.
- Lake Oroville: water in and out, day by dayHow much water flows into Lake Oroville each day, how much DWR lets out, and how the lake's storage moves.
- Groundwater levels in Butte County monitoring wellsHow far down the water is in each of DWR's continuously monitored wells in Butte County, and the change over a year.
- Chico rainfall by monthMonthly rainfall at two Chico rain gauges, next to the long-term normal.
- Northern Sierra 8-Station precipitation indexYearly rain and snow across the Northern Sierra watershed that fills Lake Oroville and Shasta.
- US Drought Monitor, Butte CountyHow much of Butte County is abnormally dry or in drought, week by week.
- Harmful algal bloom reports, Butte CountyReports of toxic algae in Butte County lakes, reservoirs and rivers, and the advisories posted.
Weather and sky
- NWS forecast for ChicoThe National Weather Service forecast and observations for Chico.
- Forecasters' discussion, NWS SacramentoThe Sacramento forecast office's own explanation of the weather ahead for the valley, Chico included.
- Sunrise, sunset and moon, ChicoSunrise, sunset, twilight and moon phase for downtown Chico, two weeks ahead.
Land and hazards
- Earthquakes within 150 km (USGS)Every quake of magnitude 1.5 or more within 150 km.
- EPA-regulated sites in Chico: inspections, violations and penaltiesEvery active EPA-regulated site in Chico that has been inspected, cited or out of compliance in recent years.
- Flood-insurance claims, Butte CountyNational Flood Insurance Program claims in Butte County, year by year.
- CalEnviroScreen 5.0, Butte County tractsHow Butte County neighborhoods rank statewide on pollution and health burden.
- Lassen and Plumas national forest alertsRoad and trail closures, camping limits and fire restrictions in the two national forests east of Chico.
Nature and the parks
- Latest wildlife sightings around ChicoThe 100 newest confirmed plant and animal sightings within 10 km of downtown Chico.
- Most-seen wild species around ChicoThe 200 plants and animals people recorded most often within 10 km of downtown Chico in the last year.
- Lassen Volcanic National Park newsNews releases from Lassen Volcanic National Park, an hour and a half from Chico: road openings, fire restrictions, closures.
Elsewhere on the site
19 datasets in environment. Every dataset · Everything at once