Climate at a Glance

National Time Series

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Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.


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Date Value Rank Departure From Mean (2.30")
1901-1941 Base Period
189501 3.32" 45 1.02"
189601 2.40" 29 0.10"
189701 2.39" 27 0.09"
189801 2.43" 31 0.13"
189901 2.61" 38 0.31"
190001 1.74" 4 -0.56"
190101 1.99" 12 -0.31"
190201 1.45" 2 -0.85"
190301 2.27" 23 -0.03"
190401 1.81" 6 -0.49"
190501 2.18" 19 -0.12"
190601 2.53" 36 0.23"
190701 2.75" 41 0.45"
190801 1.82" 7 -0.48"
190901 2.74" 39 0.44"
191001 2.15" 18 -0.15"
191101 2.44" 33 0.14"
191201 1.95" 11 -0.35"
191301 2.87" 42 0.57"
191401 2.50" 35 0.20"
191501 2.75" 41 0.45"
191601 3.79" 47 1.49"
191701 2.19" 20 -0.11"
191801 2.41" 30 0.11"
191901 1.91" 9 -0.39"
192001 2.21" 21 -0.09"
192101 2.11" 16 -0.19"
192201 2.03" 14 -0.27"
192301 2.44" 33 0.14"
192401 2.00" 13 -0.30"
192501 2.29" 24 -0.01"
192601 2.36" 26 0.06"
192701 1.77" 5 -0.53"
192801 1.28" 1 -1.02"
192901 2.36" 26 0.06"
193001 2.58" 37 0.28"
193101 1.56" 3 -0.74"
193201 3.25" 44 0.95"
193301 2.25" 22 -0.05"
193401 1.82" 7 -0.48"
193501 2.40" 29 0.10"
193601 2.88" 43 0.58"
193701 3.65" 46 1.35"
193801 2.11" 16 -0.19"
193901 2.49" 34 0.19"
194001 1.93" 10 -0.37"
194101 2.08" 15 -0.22"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published November 2019, retrieved on November 20, 2019 from https://www.ncdc.noaa.gov/cag/