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Princeton, California

Community in Colusa County, California

Air quality

The air at Princeton

Index 30, good, led by ozone. Read at 9 PM from its reporting area, Willows (CA), 13 miles off.

30Good
  • Ozone30Good-

The days ahead

Yesterday measured 37, good.

Smoke, the next 44 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 Princeton

None in the last 3 days, to Thu 8 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 Princeton, the next 44 hours

Visibility stays 10 miles or more through Sat 5 PM.

FriSat

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

What is measuring near here

The 5 instruments nearest Princeton, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 9.2 miles away.

measured now3 instruments

OrovilleOVE

At an airfield/21.7 mi away/190 ft/109 ft above here

temp, wind, gust, visibility, precip, pressure

Rank47of 4,465

measured daily2 instruments

Maxwell 5.1 NCA-CL-1

In a volunteer observer's own ground/9.6 mi away/91 ft/10 ft above here

precip, snowfall, snow depth

Rank-

Colusa 2 SSWCSAC1

At a cooperative observer's station/15.0 mi away/46 ft/35 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Oroville, drawn

The nearest airport reporting now, 21.7 mi from Princeton, California. From its report of Oct 15, 2026, 8:53 PM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 10 mi or more.

Section of the sky over Oroville, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT OVEFIG. A THE SKY OVER OROVILLESECTION, HEIGHT ABOVE THE STATION TO SCALE, EACH LAYER AT THE HEIGHT OF ITS BASE AS REPORTED; COVER IN EIGHTHS OF THE SKY; TOPS NOT MEASUREDFT ABOVE THE STATION05001,0001,5002,0002,5003,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETNO CLOUD DETECTED BELOW 12,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEOroville, the skySTATION REPORT · ASOS OVETYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-OVE-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

87.0 F with a dew point of 28.0 F, 12 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 13,200 ft up.

Chart of the air at Oroville: temperature 87.0 degrees Fahrenheit and dew point 28.0, 12 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 13,200 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT OVEFIG. B THE AIR AT OROVILLETHE 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 13,200 FT ABOVE THE STATION, AT 16.5 FTEMPERATURE 87.0 FDEW POINT 28.0 FSPREAD 59.0 FRELATIVE HUMIDITY 12 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 POINTTITLEOroville, the airSTATION REPORT · ASOS OVETYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-OVE-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the east northeast (70 degrees) at 15 mph, gusting 23 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 26 mph.

Plan of the wind at Oroville, north up: blowing from 70 degrees, the east northeast, at 15 miles an hour, gusting 23; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT OVEFIG. C THE WIND AT OROVILLEPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 70°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 15 MPH5FRESH BREEZE19GUST, 23 MPH6STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEOroville, the windSTATION REPORT · ASOS OVETYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-OVE-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Oroville, in 6 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 Princeton

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

Near Princeton

River and lake gauges