| Percent of U.S. Mainland in
Selected Drought Ranges -- December 31, 2007 |
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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) | 9.24 | -20.95 | 5.37 | - 0.67 | 32.47 | + 2.26 | 59.59 | - 5.09 |
| 0-20 (D1) | 2.82 | -17.32 | 3.59 | - 1.51 | 21.13 | + 0.94 | 61.72 | - 2.33 |
| 0-10 (D2) | 0.43 | - 9.65 | 4.39 | - 0.18 | 8.76 | - 1.37 | 57.74 | - 1.62 |
| 0-5 (D3) | 0.00 | - 5.10 | 0.00 | + 0.00 | 4.42 | - 0.71 | 63.89 | - 0.42 |
| 0-2 (D4) | 0.00 | - 2.07 | 0.00 | + 0.00 | 1.26 | - 0.80 | 63.63 | - 0.61 |
| *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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