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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Dates Value Rank Departure From Mean (21.13")
1901-1934 Base Period
189509 - 189605 19.89" 9 -1.24"
189609 - 189705 22.84" 32 1.71"
189709 - 189805 20.00" 11 -1.13"
189809 - 189905 21.04" 20 -0.09"
189909 - 190005 20.70" 15 -0.43"
190009 - 190105 21.31" 22 0.18"
190109 - 190205 19.90" 10 -1.23"
190209 - 190305 23.90" 38 2.77"
190309 - 190405 19.21" 6 -1.92"
190409 - 190505 21.18" 21 0.05"
190509 - 190605 21.98" 27 0.85"
190609 - 190705 23.15" 35 2.02"
190709 - 190805 23.11" 34 1.98"
190809 - 190905 20.41" 12 -0.72"
190909 - 191005 19.30" 7 -1.83"
191009 - 191105 18.76" 5 -2.37"
191109 - 191205 23.77" 37 2.64"
191209 - 191305 20.58" 13 -0.55"
191309 - 191405 21.91" 25 0.78"
191409 - 191505 21.94" 26 0.81"
191509 - 191605 22.01" 28 0.88"
191609 - 191705 19.57" 8 -1.56"
191709 - 191805 17.55" 2 -3.58"
191809 - 191905 23.21" 36 2.08"
191909 - 192005 23.09" 33 1.96"
192009 - 192105 21.36" 23 0.23"
192109 - 192205 22.80" 31 1.67"
192209 - 192305 20.64" 14 -0.49"
192309 - 192405 20.80" 16 -0.33"
192409 - 192505 18.09" 3 -3.04"
192509 - 192605 20.80" 16 -0.33"
192609 - 192705 24.38" 39 3.25"
192709 - 192805 21.03" 19 -0.10"
192809 - 192905 21.86" 24 0.73"
192909 - 193005 20.82" 18 -0.31"
193009 - 193105 18.27" 4 -2.86"
193109 - 193205 22.23" 30 1.10"
193209 - 193305 22.17" 29 1.04"
193309 - 193405 17.16" 1 -3.97"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published October 2019, retrieved on October 14, 2019 from https://www.ncdc.noaa.gov/cag/