2026 Precipitation Modeling • NOAA Hydrological Normals

Stop Risking Drought Crop Loss.
Calculate Your Off-Grid Water Independence.

A single midsummer heatwave can wipe out a family food plot in 5 days without water. Enter your roof size and ZIP code below to pull local rainfall records, calculate harvestable volume, and size your emergency tank reserves.

Microclimate Rainfall Lookup Pulls historical annual precipitation for your exact 5-digit US coordinates.

Garden Bed Gallon Demand Calculates true irrigation requirements based on your active square footage of beds.

Instant Storage Tank Sizing Generates exact barrel, 275-gal IBC tote, and cistern requirements for your dry-spell buffer.

Configure Your Homestead Water System

100% Free • No Credit Card Required • Instant Results

1. 5-Digit US ZIP Code:

2. Roof Catchment (Sq Ft):

3. Garden Bed Area (Sq Ft):

4. Catchment Surface Material:

5. Drought Reserve Target:

6. Where Should We Send Your Water Blueprint & Alerts? Your privacy is protected. One-click unsubscribe at any time.

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Fetching local rainfall records and modeling storage buffers...

★★★★★

“I had no idea our 1,800 sq ft shop roof catches over 35,000 gallons a year. Sizing our IBC totes for a 60-day dry spell kept our entire potato and corn crop thriving during July water restrictions.”

— David R., Texas Hill Country

8,900+

Water Blueprints Modeled

Frequently Asked Questions

How is catchment volume calculated?

We use the standard hydrologic formula: Gallons = Catchment Sq Ft × Rainfall Inches × 0.623 × Runoff Efficiency. Roof pitch does not increase footprint area, but surface material impacts runoff recovery.

How much water does a survival garden actually need?

Active vegetable beds require roughly 1 inch of water per square foot per week (0.62 gallons/sq ft). In peak summer heat, that demand rises to 1.5 inches per week.

Can I run drip irrigation without an electric pump?

Yes. Elevating your storage tanks 4 to 6 feet above your beds produces 2 to 3 PSI of static head pressure (0.433 PSI per foot of elevation), which is ideal for low-pressure gravity drip emitters.