Percent of U.S. Mainland in Selected
Drought Ranges -- May 31, 2008
Percentile
Range
Short-Term
Drought Indicator Blend
Long-Term
Drought Indicator Blend
 Current   Anomaly*   Percentile*   Change**   Current   Anomaly*   Percentile*   Change** 
0-30 (D0)   27.35 - 2.84 47.08 - 1.43 30.38 + 0.17 54.40 + 1.99
0-20 (D1)   17.37 - 2.78 49.31 + 4.66 14.80 - 5.39 44.81 - 3.18
0-10 (D2)    6.55 - 3.52 44.31 + 1.42  5.90 - 4.23 45.36 - 1.23
0-5 (D3)    1.53 - 3.57 31.82 - 1.13  1.30 - 3.83 36.00 + 0.29
0-2 (D4)    0.00 - 2.07  0.00 - 2.24  0.15 - 1.91 36.88 + 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