Daylight through the yearLongest day (Jun 21): 15 h 33 min5:14 am – 8:47 pmShortest day (Dec 21): 8 h 50 min7:32 am – 4:22 pm
Sun todaySunrise –Sunset –
ClimateWarmest month July: highs 85°F, lows 55°FColdest month January: highs 34°F, lows 8°F19 in of rain a year, on about 48 dayswettest month June49 in of snow a year, on about 32 days25 days above 90°F, 201 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Devils Twr #2 station, 5 mi away
Parks and public landsDevils Tower National Monumentnational monument · 4.2 mi · 1,350 acresKeyhole Reservoir State Parkstate park · 9.3 mi · 15,844 acresBlack Hills National Forestnational forest · 14.5 mi · 176,135 acresSource: USGS Protected Areas Database (PAD-US)
Earthquakes1 of magnitude 3 or more within 50 miles since 19701 of magnitude 4+, 0 of magnitude 5+Largest: magnitude 4.2 on 25 Sep 200944 mi away, near Alzada, MontanaMost recent: magnitude 4.2 on 25 Sep 200944 mi awaySource: USGS Earthquake Catalog
Natural hazardsOverall risk Very LowCrook County, WY, compared with all US countiesHighest-rated hazardsHail Relatively ModerateWinter weather Relatively ModerateSource: FEMA National Risk Index (county level)
Air quality74% of days had good air in 2025271 of 365 days measured92 moderate, 1 unhealthy for sensitive groups, 1 unhealthy daysMedian index 44, worst day 156main pollutant: ozoneSource: US EPA Air Quality Index, nearest monitors: Campbell County, WY, 44 mi away
Drinking waterCity of Sundanceserves 1,279 people from ground waterNo health-based violations since 2021Source: US EPA Safe Drinking Water Information System, largest system in the county
Elevation3,988 ft1,216 m above sea levelSource: USGS 3D Elevation Program
Local servicesHospitalCrook County Hospital and Long - Term Care20.7 miPost officeDevils Tower Post Office5.3 miFire stationCarlile Fire Station2.4 miSource: USGS National Structures Dataset
Getting aroundAirportNortheast Wyoming Regional Airport GCC40 miInterstateI-9016 miUS highwayUS 141.9 miSources: OurAirports; US Census Bureau TIGER roads; Bureau of Transportation Statistics NTAD
Distances in these cards are measured from the centre of the 82713 ZIP area.
