| Percent of U.S. Mainland in
Selected Drought Ranges -- January 31, 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) | 28.71 | - 1.47 | 51.14 | +11.78 | 22.36 | - 7.85 | 39.34 | + 5.92 |
| 0-20 (D1) | 17.57 | - 2.58 | 50.16 | + 8.59 | 9.84 | -10.34 | 29.77 | + 0.44 |
| 0-10 (D2) | 6.24 | - 3.83 | 43.20 | + 1.71 | 6.76 | - 3.36 | 49.37 | + 0.88 |
| 0-5 (D3) | 3.05 | - 2.06 | 48.15 | + 2.32 | 2.14 | - 2.99 | 43.70 | + 1.02 |
| 0-2 (D4) | 0.00 | - 2.07 | 0.00 | + 0.00 | 0.88 | - 1.18 | 57.33 | + 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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