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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Download: xml csv json
Dates Value Rank Departure From Mean (18.42")
1901-1929 Base Period
189509 - 189604 16.93" 8 -1.49"
189609 - 189704 20.72" 31 2.30"
189709 - 189804 16.77" 5 -1.65"
189809 - 189904 18.30" 16 -0.12"
189909 - 190004 18.25" 15 -0.17"
190009 - 190104 18.65" 20 0.23"
190109 - 190204 16.90" 7 -1.52"
190209 - 190304 20.89" 33 2.47"
190309 - 190404 16.62" 3 -1.80"
190409 - 190504 17.44" 11 -0.98"
190509 - 190604 18.82" 23 0.40"
190609 - 190704 19.70" 28 1.28"
190709 - 190804 18.98" 24 0.56"
190809 - 190904 17.37" 10 -1.05"
190909 - 191004 16.71" 4 -1.71"
191009 - 191104 16.79" 6 -1.63"
191109 - 191204 20.88" 32 2.46"
191209 - 191304 18.07" 14 -0.35"
191309 - 191404 19.43" 26 1.01"
191409 - 191504 18.05" 13 -0.37"
191509 - 191604 19.13" 25 0.71"
191609 - 191704 16.93" 8 -1.49"
191709 - 191804 14.96" 1 -3.46"
191809 - 191904 20.01" 29 1.59"
191909 - 192004 20.30" 30 1.88"
192009 - 192104 18.81" 22 0.39"
192109 - 192204 19.69" 27 1.27"
192209 - 192304 17.51" 12 -0.91"
192309 - 192404 18.38" 18 -0.04"
192409 - 192504 16.17" 2 -2.25"
192509 - 192604 18.59" 19 0.17"
192609 - 192704 21.39" 34 2.97"
192709 - 192804 18.69" 21 0.27"
192809 - 192904 18.35" 17 -0.07"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published September 2019, retrieved on September 21, 2019 from https://www.ncdc.noaa.gov/cag/