Pennsylvania Drought Status — Water Year 2024–2025
October 2024 was the worst drought month on record in this analysis — PADI 1.989, 100% statewide coverage. Water-year SPI across 138 PA stations averages −0.50, with 43% of stations in drought (SPI < −1.0) and 23% in severe drought (SPI < −1.5). The cumulative water budget deficit since January 2024 exceeds 90mm statewide despite several months with above-normal precipitation. This is the water-budget paradox the forum critics keep missing: individual rain events do not erase months of accumulated deficit.
October 2024 was the worst drought month on record in this analysis — PADI 1.989, 100% statewide coverage. Water-year SPI across 138 PA stations averages −0.50, with 43% of stations in drought (SPI < −1.0) and 23% in severe drought (SPI < −1.5). The cumulative water budget deficit since January 2024 exceeds 90mm statewide despite several months with above-normal precipitation. This is the water-budget paradox the forum critics keep missing: individual rain events do not erase months of accumulated deficit.
📅 Monthly PADI — 2024–2025
💧 Monthly Water Budget (mm) — 2024–2025
📈 Cumulative PPT Anomaly Since Jan 2024 (mm)
🌡️ Z-Score Component Breakdown 2024–2025
🗺️ Water-Year SPI Map (Station Data)
📊 SPI Distribution — PA Water-Year
💦 Water-Year SPI Chart (Official)
📅 Annual SPI Chart (Official)
📋 Month-by-Month Drought Scorecard 2024–2025
| Month | PPT mm | ET mm | WB mm | PPT Z | WB Z | PADI | Coverage | Status |
|---|