| Percent of U.S. Mainland in
Selected Drought Ranges -- May 24, 2009 |
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| Percentile Range |
Short-Term Drought Indicator Blend |
Long-Term Drought Indicator Blend |
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| Current | Anomaly* | Percentile* | Change** | Current | Anomaly* | Percentile* | Change** | |
| 0-30 (D0) | 21.87 | - 8.32 | 33.67 | - 5.14 | 21.94 | - 8.28 | 38.42 | + 0.29 |
| 0-20 (D1) | 13.37 | - 6.77 | 34.05 | - 2.17 | 12.14 | - 8.05 | 36.02 | - 1.99 |
| 0-10 (D2) | 4.01 | - 6.07 | 28.30 | - 6.05 | 3.48 | - 6.64 | 30.88 | + 0.54 |
| 0-5 (D3) | 0.74 | - 4.37 | 20.88 | - 2.63 | 1.08 | - 4.05 | 33.05 | + 0.12 |
| 0-2 (D4) | 0.00 | - 2.07 | 0.00 | + 0.00 | 0.00 | - 2.06 | 0.00 | + 0.00 |
| *Anomalies & percentiles based on monthly 1932
- 2001 data from National Climatic Data Center. **Change from Previous Week's Percentage of U.S. Covered |
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