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 (18.28")
1901-1941 Base Period
189509 - 189604 16.93" 11 -1.35"
189609 - 189704 20.72" 43 2.44"
189709 - 189804 16.77" 8 -1.51"
189809 - 189904 18.30" 22 0.02"
189909 - 190004 18.25" 21 -0.03"
190009 - 190104 18.65" 27 0.37"
190109 - 190204 16.90" 10 -1.38"
190209 - 190304 20.89" 45 2.61"
190309 - 190404 16.62" 6 -1.66"
190409 - 190504 17.44" 15 -0.84"
190509 - 190604 18.82" 31 0.54"
190609 - 190704 19.70" 38 1.42"
190709 - 190804 18.98" 32 0.70"
190809 - 190904 17.37" 14 -0.91"
190909 - 191004 16.71" 7 -1.57"
191009 - 191104 16.79" 9 -1.49"
191109 - 191204 20.88" 44 2.60"
191209 - 191304 18.07" 20 -0.21"
191309 - 191404 19.43" 35 1.15"
191409 - 191504 18.05" 19 -0.23"
191509 - 191604 19.13" 34 0.85"
191609 - 191704 16.93" 11 -1.35"
191709 - 191804 14.96" 1 -3.32"
191809 - 191904 20.01" 41 1.73"
191909 - 192004 20.30" 42 2.02"
192009 - 192104 18.81" 30 0.53"
192109 - 192204 19.69" 36 1.41"
192209 - 192304 17.51" 17 -0.77"
192309 - 192404 18.38" 24 0.10"
192409 - 192504 16.17" 4 -2.11"
192509 - 192604 18.59" 26 0.31"
192609 - 192704 21.39" 46 3.11"
192709 - 192804 18.69" 28 0.41"
192809 - 192904 18.35" 23 0.07"
192909 - 193004 17.65" 18 -0.63"
193009 - 193104 15.98" 3 -2.30"
193109 - 193204 19.81" 40 1.53"
193209 - 193304 18.78" 29 0.50"
193309 - 193404 15.35" 2 -2.93"
193409 - 193504 19.05" 33 0.77"
193509 - 193604 17.49" 16 -0.79"
193609 - 193704 19.70" 38 1.42"
193709 - 193804 19.71" 39 1.43"
193809 - 193904 17.12" 13 -1.16"
193909 - 194004 16.31" 5 -1.97"
194009 - 194104 18.47" 25 0.19"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published September 2019, retrieved on September 22, 2019 from https://www.ncdc.noaa.gov/cag/