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 (8.81")
1901-1932 Base Period
189511 - 189602 9.27" 27 0.46"
189611 - 189702 9.75" 31 0.94"
189711 - 189802 8.93" 22 0.12"
189811 - 189902 8.87" 19 0.06"
189911 - 190002 8.61" 17 -0.20"
190011 - 190102 8.15" 9 -0.66"
190111 - 190202 8.06" 7 -0.75"
190211 - 190302 11.22" 36 2.41"
190311 - 190402 7.51" 3 -1.30"
190411 - 190502 7.71" 5 -1.10"
190511 - 190602 8.74" 18 -0.07"
190611 - 190702 9.94" 33 1.13"
190711 - 190802 9.57" 30 0.76"
190811 - 190902 9.02" 23 0.21"
190911 - 191002 9.81" 32 1.00"
191011 - 191102 8.02" 6 -0.79"
191111 - 191202 8.91" 21 0.10"
191211 - 191302 8.39" 12 -0.42"
191311 - 191402 9.20" 26 0.39"
191411 - 191502 9.53" 29 0.72"
191511 - 191602 10.29" 35 1.48"
191611 - 191702 7.69" 4 -1.12"
191711 - 191802 6.74" 1 -2.07"
191811 - 191902 9.53" 29 0.72"
191911 - 192002 8.43" 13 -0.38"
192011 - 192102 8.89" 20 0.08"
192111 - 192202 9.12" 25 0.31"
192211 - 192302 9.05" 24 0.24"
192311 - 192402 8.54" 15 -0.27"
192411 - 192502 8.06" 7 -0.75"
192511 - 192602 8.23" 10 -0.58"
192611 - 192702 10.03" 34 1.22"
192711 - 192802 8.55" 16 -0.26"
192811 - 192902 8.27" 11 -0.54"
192911 - 193002 8.49" 14 -0.32"
193011 - 193102 6.96" 2 -1.85"
193111 - 193202 11.40" 37 2.59"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published October 2019, retrieved on October 19, 2019 from https://www.ncdc.noaa.gov/cag/