Climate change in Oglala Lakota County, South Dakota
Since 1979, Oglala Lakota County, South Dakota has warmed 2.1°F, with 9 more days above 90°F, 1 more nights above 70°F and 12% more precipitation a year. Its climate in 1996–2025 is most like Deuel County, NE's was in 1951–1980.
- Average temperature: +2.1°F
- Summer highs (Jun–Aug): +1.8°F
- Winter lows (Dec–Feb): +2.5°F
- Precipitation: +12%
- Wettest day of the year: +16%
- Longest dry spell: −2 days
- Days above 90°F: +9 days
- Nights above 70°F: +1 days
- Freezing nights: −9 days
- Frost-free season: +9 days
- Muggy days: +1 days
- Summer heat index (Jun–Aug): +2.2°F
- Extreme fire-weather days: +7 days
Changes follow the trend line through every year from 1979 to 2025. Data: NOAA nClimGrid-Daily; humidity from gridMET, adjusted to airport observations.