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 (4.46")
1901-1941 Base Period
189501 - 189502 4.73" 35 0.27"
189601 - 189602 4.45" 25 -0.01"
189701 - 189702 5.18" 39 0.72"
189801 - 189802 4.08" 12 -0.38"
189901 - 189902 4.89" 37 0.43"
190001 - 190002 4.26" 19 -0.20"
190101 - 190102 4.12" 14 -0.34"
190201 - 190202 4.01" 10 -0.45"
190301 - 190302 5.30" 40 0.84"
190401 - 190402 4.24" 17 -0.22"
190501 - 190502 4.53" 29 0.07"
190601 - 190602 4.25" 18 -0.21"
190701 - 190702 4.57" 32 0.11"
190801 - 190802 4.63" 34 0.17"
190901 - 190902 5.62" 46 1.16"
191001 - 191002 4.26" 19 -0.20"
191101 - 191102 4.57" 32 0.11"
191201 - 191202 3.85" 6 -0.61"
191301 - 191302 4.77" 36 0.31"
191401 - 191402 4.58" 33 0.12"
191501 - 191502 5.52" 44 1.06"
191601 - 191602 5.56" 45 1.10"
191701 - 191702 4.00" 9 -0.46"
191801 - 191802 4.13" 15 -0.33"
191901 - 191902 4.55" 30 0.09"
192001 - 192002 3.82" 4 -0.64"
192101 - 192102 3.88" 8 -0.58"
192201 - 192202 4.47" 26 0.01"
192301 - 192302 4.30" 21 -0.16"
192401 - 192402 3.83" 5 -0.63"
192501 - 192502 4.07" 11 -0.39"
192601 - 192602 4.41" 24 -0.05"
192701 - 192702 4.49" 27 0.03"
192801 - 192802 3.12" 1 -1.34"
192901 - 192902 4.38" 23 -0.08"
193001 - 193002 4.32" 22 -0.14"
193101 - 193102 3.40" 2 -1.06"
193201 - 193202 5.48" 42 1.02"
193301 - 193302 4.19" 16 -0.27"
193401 - 193402 3.47" 3 -0.99"
193501 - 193502 4.10" 13 -0.36"
193601 - 193602 5.50" 43 1.04"
193701 - 193702 5.87" 47 1.41"
193801 - 193802 4.52" 28 0.06"
193901 - 193902 5.42" 41 0.96"
194001 - 194002 4.91" 38 0.45"
194101 - 194102 3.85" 6 -0.61"

Citing This Page

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