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Overview
At 19.9 inches of yearly rain and an average of 41.9 F, Aberdeen experiences infrequent rain but high sensitivity to leaks when storms hit.
The broader South Dakota climate, including seasonal humidity peaks and storm activity, shapes the indoor moisture environment alongside local conditions.
Aberdeen experiences cold, snowy winters and warm summers, so moisture risk shifts from ice dams to summer storms.
Aberdeen Code Enforcement addresses property maintenance and code compliance issues.
This guide highlights local moisture drivers, seasonal risk, and prevention steps. For legal rights and landlord obligations, review the South Dakota mold laws guide.
Sources: [South Dakota - Climate | Britannica] | [Aberdeen Code Enforcement] | [NOAA Climate Normals - ABERDEEN 35 WNW, SD US]
Action Checklist
Aberdeen Home Inspection Checklist
Common construction types in Aberdeen affect where moisture problems develop. Here is how local building patterns shape what to inspect.
In Aberdeen, code Enforcement addresses property maintenance concerns and inspections.
Documenting moisture issues helps support inspection follow up.
Sources: [Aberdeen Code Enforcement]
- Rare storms in Aberdeen (19.9 inches annually) demand immediate roof and window seal inspections when they do arrive.
- Roof flashing, gutters, and downspout extensions.
- Attic insulation and ventilation near eaves.
- Basement walls, sump pits, and floor drains.
- Window frames and sills with condensation.
- Bathroom exhaust fans and vent ducts.
- Water heater pans and HVAC condensate lines.
- Under sink plumbing and cabinet bases.
Sources: [EPA Mold, Moisture, and Your Home] | [NOAA Climate Normals - ABERDEEN 35 WNW, SD US]
Warning Signs of Mold in Aberdeen
Watch for these signs that moisture is lingering in Aberdeen homes and rentals:
- In Aberdeen, condensation on cold windows during long heating months (annual average about 41.9 F) is an early moisture signal.
- Musty odors after snowmelt or heavy rain.
- Condensation that returns on windows each morning.
- Peeling paint near baseboards or window trim.
- Dark spotting near ceiling corners.
- Soft drywall around tubs or showers.
Sources: [EPA Mold, Moisture, and Your Home] | [NOAA Climate Normals - ABERDEEN 35 WNW, SD US]
Mold Risk Factors in Aberdeen
These are the most common moisture drivers for homes and rentals in Aberdeen:
- Annual precipitation in Aberdeen averages only 19.9 inches, making indoor moisture sources like plumbing and cooling systems the main concern.
- Snow and ice dams can leak into attic edges.
- Freeze thaw cycles stress roof flashing and siding joints.
- Spring snowmelt can keep basements damp.
- Summer thunderstorms bring heavy rain and humidity.
- Cold snaps drive window condensation in tight homes.
Sources: [South Dakota - Climate | Britannica] | [EPA Mold, Moisture, and Your Home] | [NOAA Climate Normals - ABERDEEN 35 WNW, SD US]
Aberdeen Seasonal Risk Calendar
Winter
At 41.9 F annually, long heating seasons push warm air against cold surfaces. Keep air moving to reduce condensation.
Spring
Thaw and rain keep basements damp. Check sump pumps.
Summer
Cool summers still bring rain. Inspect roof edges after storms.
Fall
Temperature swings return. Recheck roof edges and window seals.
Sources: [South Dakota - Climate | Britannica] | [NOAA Climate Normals - ABERDEEN 35 WNW, SD US]
Aberdeen Moisture Playbook
Use this short playbook to stay ahead of common moisture problems in Aberdeen.
After a Leak
Stop the leak, remove wet materials within 24 to 48 hours, and dry the area with airflow.
Monthly Maintenance
Inspect under sinks, clear condensate lines, and log basement humidity.
Seasonal Tune Up
Annual rainfall is only 19.9 inches, but one storm can create hidden leaks. Seal window and door gaps before storm season.
Sources: [EPA Mold, Moisture, and Your Home] | [NOAA Climate Normals - ABERDEEN 35 WNW, SD US]
Mold Prevention in Aberdeen
Use these priorities to keep indoor humidity low and avoid recurring growth:
- Despite only 19.9 inches of annual rainfall, seal window and door gaps before storms to prevent water intrusion.
- Maintain indoor humidity between 30 and 50 percent.
- Dry wet materials within 24 to 48 hours.
- Vent bathrooms and kitchens outdoors.
- Clear gutters and direct downspouts away from foundations.
- Inspect roof flashing and window seals before storm seasons.
- Service HVAC condensate drains annually.
Sources: [EPA Mold, Moisture, and Your Home] | [NOAA Climate Normals - ABERDEEN 35 WNW, SD US]
State Laws and Rights
South Dakota mold law snapshot
South Dakota does not have a mold-specific statute, but habitability rules still apply.
Under SDCL Section 43-32-8, landlords must keep rental premises in reasonable repair and fit for human habitation, including the maintenance of all electrical, plumbing, and heating systems. This requirement applies except for damage caused by the tenant's fault. The warranty of habitability cannot be waived or modified by the parties to the rental agreement - this "implied" requirement applies whether or not the lease agreement specifically says so and even if the lease tries to waive the obligation. While mold is not specifically mentioned, conditions that promote mold growth (such as plumbing leaks, inadequate ventilation, or water intrusion) would violate these habitability standards.
Use the full South Dakota guide for tenant rights, landlord responsibilities, and remedies.