| Percent of U.S. Mainland in
Selected Drought Ranges -- April 18, 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) | 18.62 | -11.56 | 24.86 | - 4.14 | 23.99 | - 6.22 | 42.72 | - 2.11 |
| 0-20 (D1) | 11.00 | - 9.15 | 27.17 | + 2.51 | 11.74 | - 8.44 | 34.99 | - 0.43 |
| 0-10 (D2) | 1.69 | - 8.39 | 11.90 | - 1.03 | 5.19 | - 4.93 | 41.72 | - 0.07 |
| 0-5 (D3) | 0.70 | - 4.40 | 20.09 | - 0.04 | 1.49 | - 3.64 | 37.23 | - 0.88 |
| 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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