Daylight through the yearLongest day (Jun 21): 15 h 18 min5:34 am – 8:52 pmShortest day (Dec 21): 9 h 4 min7:37 am – 4:41 pm
Sun todaySunrise –Sunset –
People0 residentsin the ZIP code area0 householdsSource: US Census Bureau, American Community Survey 2020-2024
ClimateWarmest month July: highs 85°F, lows 50°FColdest month January: highs 31°F, lows 9°F10 in of rain a year, on about 29 dayswettest month May60 in of snow a year, on about 24 days13 days above 90°F, 207 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Jeffrey City station, 4 mi away
Earthquakes23 of magnitude 3 or more within 50 miles since 19706 of magnitude 4+, 1 of magnitude 5+Largest: magnitude 5.0 on 3 Nov 198450 mi away, near Atlantic City, WyomingMost recent: magnitude 3.8 on 13 Dec 202526 mi awaySource: USGS Earthquake Catalog
Natural hazardsOverall risk Relatively LowFremont County, WY, compared with all US countiesHigher-risk hazardsLightning Relatively HighSource: FEMA National Risk Index (county level)
Air quality70% of days had good air in 2025254 of 365 days measured111 moderate daysMedian index 47, worst day 100main pollutant: ozoneSource: US EPA Air Quality Index, Fremont County monitors, WY
Drinking waterJeffrey City Water & Sewer Districtserves 40 people from ground water1 health-based violation since 2021latest Jun 2022: groundwater treatment, treatment technique12 monitoring or reporting violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the town
Elevation6,546 ft1,995 m above sea levelSource: USGS 3D Elevation Program
Getting aroundAirportCentral Wyoming Regional Airport RIW52 miUS highwayUS 2874.6 miSources: OurAirports; US Census Bureau TIGER roads; Bureau of Transportation Statistics NTAD
Distances in these cards are measured from the centre of the 82310 ZIP area.
