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Durham, California

Community in Butte County, California

Air quality

The air at Durham

Index 25, good, led by ozone. Read at 11 PM from its reporting area, Chico (CA), 8 miles off.

25Good
  • Fine particles (PM2.5)11Good-
  • Ozone25Good-
  • Coarse particles (PM10)23Good-

The days ahead

Good each day through Fri Oct 16, led by ozone. Yesterday measured 32, good.

Smoke, the next 43 hours

Little smoke near the ground through Sat 5 PM: the index from smoke stays at 6 or under.

FriSat

Precipitation

What has fallen at Durham

None in the last 3 days, to Thu 10 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.00in

Visibility

How far you can see at Durham, the next 43 hours

Visibility stays 10 miles or more through Sat 5 PM.

FriSat

On the radar over Durham, CaliforniaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Durham, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.0 miles away.

measured now3 instruments

measured daily2 instruments

Durham 5.0 NECA-BT-21

In a volunteer observer's own ground/2.0 mi away/162 ft/4 ft above here

precip, snowfall, snow depth

Rank-

Chico University FarmCHUC1

On a college campus/3.3 mi away/186 ft/28 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Openshaw RAWS, drawn

The nearest instrument reporting now, 9.6 mi from Durham, California. From its report of Oct 15, 2026, 10:54 PM local time: 3 of its 5 sheets.

The air

83.0 F with a dew point of 27.1 F, 13 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 12,500 ft up.

Chart of the air at Openshaw RAWS: temperature 83.0 degrees Fahrenheit and dew point 27.1, 13 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 12,500 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CICC1FIG. B THE AIR AT OPENSHAW RAWSTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION02,0004,0006,0008,00010,00012,00014,00016,00010 F30 F50 F70 F90 FSATURATES 12,500 FT ABOVE THE STATION, AT 16.2 FTEMPERATURE 83.0 FDEW POINT 27.1 FSPREAD 55.9 FRELATIVE HUMIDITY 13 PER CENTTHE AIR COOLS ABOUT 5.4 F EACH 1,000 FT IT RISES, AND ITS DEW POINT ABOUT 1 FSOLID: THE LIFTED AIR'S TEMPERATURE; DASHED: ITS DEW POINTTITLEOpenshaw RAWS, the airSTATION REPORT · DCP CICC1TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-10-16IDSR-CICC1-1DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the northeast (47 degrees) at 13 mph, gusting 25 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 29 mph.

Plan of the wind at Openshaw RAWS, north up: blowing from 47 degrees, the northeast, at 13 miles an hour, gusting 25; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CICC1FIG. C THE WIND AT OPENSHAW RAWSPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 47°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 13 MPH5FRESH BREEZE196STRONG BREEZE25GUST, 25 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEOpenshaw RAWS, the windSTATION REPORT · DCP CICC1TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-10-16IDSR-CICC1-2DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

The column

At 263 ft above sea level, 1 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.64 inHg and the temperature at 58.1 F; it reports 83.0 F, 24.9 F warmer than standard.

Section from sea level of where Openshaw RAWS stands in the atmosphere, height to scale: the station 263 feet above sea level with 1 per cent of the air below it; the standard atmosphere's pressure there, 29.64 inches of mercury, and temperature, 58.1 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CICC1FIG. D WHERE OPENSHAW RAWS STANDS IN THE ATMOSPHERESECTION FROM SEA LEVEL, HEIGHT TO SCALE, THE STATION IN THE STANDARD ATMOSPHEREFT ABOVE SEA LEVEL05,00010,00015,000SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHEREOPENSHAW RAWS1 PER CENT OF THE AIR BELOW IT263 FT10 PER CENT OF THE AIR BELOW, 2,890 FT20 PER CENT OF THE AIR BELOW, 6,050 FT30 PER CENT OF THE AIR BELOW, 9,540 FT40 PER CENT OF THE AIR BELOW, 13,470 FTSTANDARD PRESSURE HERE29.64 inHgSTANDARD TEMPERATURE HERE58.1 FTEMPERATURE, REPORTED83.0 FTITLEOpenshaw RAWS, the columnSTATION REPORT · DCP CICC1TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-10-16IDSR-CICC1-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The full report of Openshaw RAWS, in 5 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in California

33 places, each with its own forecast and its own instruments.

Near Durham

The nearest places, each with its own forecast and the instruments nearest it.

Near Durham

River and lake gauges