Haakon County Climate
Haakon County, South Dakota
Avg Annual Temp
47.4°F
Annual Precip
18.7"
Annual Snowfall
42.8"
Extreme Heat Days
40.75
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Haakon County Weather
High Heat and Arid Plains Conditions
Haakon County averages 47.4°F annually, placing it slightly below the national median temperature. The climate is characterized by high summer peaks and lower-than-average precipitation for the central United States.
One of the State's Hotspots
At 47.4°F, the county is noticeably warmer than the South Dakota average of 45.6°F. It is also significantly drier, receiving only 18.7 inches of annual precipitation compared to the 22.7-inch state norm.
Higher Heat than Eastern Neighbors
Haakon experiences 41 days of 90°F heat, nearly double the 20 days seen in Hand County to the east. This makes Haakon one of the more thermally intense counties in the central South Dakota region.
Extreme Heat and Sharp Winter Chills
Summer dominates with 41 days above 90°F and a July average of 74.7°F. Despite the heat, winters are harsh, bringing 42.8 inches of snow and a January average of 20.8°F.
Focus on Hydration and HVAC Reliability
Residents must plan for prolonged heatwaves, requiring robust cooling systems for the 41 extreme heat days. Xeriscaping is a practical choice given the low 18.7-inch annual rainfall and high evaporation rates.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.