Daylight through the yearLongest day (Jun 21): 14 h 50 min5:47 am – 8:37 pmShortest day (Dec 21): 9 h 30 min7:23 am – 4:53 pm
Sun todaySunrise –Sunset –
Natural hazardsOverall risk Relatively HighSonoma County, CA, compared with all US countiesHigher-risk hazardsLandslide Relatively HighEarthquake Relatively HighDrought Relatively HighRiver flooding Relatively HighSource: FEMA National Risk Index (county level)
Air quality100% of days had good air in 2025365 of 365 days measuredNo moderate or unhealthy daysMedian index 9, worst day 39main pollutant: coarse particles (PM10)Source: US EPA Air Quality Index, Sonoma County monitors, CA
Drinking waterCity of Petalumaserves 60,781 people from ground waterNo health-based violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the town
