Climate at a Glance

National Time Series

Choose from the options below and click "Plot" to create a time series graph.
Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.


Place mouse on axis and left-click to pan; wheel up/down for zoom in/out (or shift key+left-click).

Download: xml csv json
Dates Value Rank Departure From Mean (30.28")
1901-1907 Base Period
189503 - 189602 27.27" 1 -3.01"
189603 - 189702 30.50" 9 0.22"
189703 - 189802 28.60" 6 -1.68"
189803 - 189902 30.38" 7 0.10"
189903 - 190002 28.08" 3 -2.20"
190003 - 190102 30.49" 8 0.21"
190103 - 190202 27.52" 2 -2.76"
190203 - 190302 31.92" 10 1.64"
190303 - 190402 28.30" 5 -1.98"
190403 - 190502 28.24" 4 -2.04"
190503 - 190602 32.32" 11 2.04"
190603 - 190702 33.16" 12 2.88"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published October 2019, retrieved on October 13, 2019 from https://www.ncdc.noaa.gov/cag/