Oglala Lakota County Climate
Oglala Lakota County, South Dakota
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
48.0°F
Annual Precip
18.3"
Annual Snowfall
—
Extreme Heat Days
41
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5a
Minimum winter temperature range for plant survival
2,754
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Oglala Lakota County
Climate Verdict
Oglala Lakota County has a cool, averaging 48.0°F annually, semi-arid conditions with only 18.3 inches of annual precipitation, occasional hot days — 41.125 per year above 90°F. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 24.6°F. summers are warm — July averages 74.0°F. The 49°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Oglala Lakota County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Oglala Lakota County closely matches the South Dakota statewide average temperature of 45.6°F, it is somewhat drier than average for South Dakota, the county experiences 17.59530341880342 more extreme heat days than the state average.
Climate Profile
About Oglala Lakota County Weather
A Semi-Arid and Dynamic Climate
Oglala Lakota County reports an annual average temperature of 48.0°F, which is closer to the national median than many of its neighbors. This region is characterized by high temperature variability and lower annual moisture.
One of South Dakota's Warmer Counties
Averaging 48.0°F, this county stays warmer than the South Dakota average of 45.6°F. However, it is much drier than the rest of the state, receiving only 18.3 inches of precipitation compared to the 22.7-inch average.
Drier and Hotter Than Eastern Neighbors
The county receives about 10 inches less precipitation than Moody or Minnehaha. It also experiences 41 extreme heat days, a massive jump from the single digits found in the eastern part of the state.
Extreme Heat and Mild Winters
While snowfall data remains unavailable for this specific area, the heat is the primary seasonal story with 41 days hitting 90°F or higher. July averages are a warm 74.0°F, and even January stays relatively mild at 24.6°F.
Prioritizing Summer Cooling and Hydration
With 41 days of extreme heat, a high-efficiency air conditioning system is vital for safety and comfort. Residents should also plan for dry conditions, as the 18.3 inches of annual rainfall requires water-conscious landscaping.
Frequently Asked Questions
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Data sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.