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 (18.10")
1901-1905 Base Period
189509 - 189604 16.93" 4 -1.17"
189609 - 189704 20.72" 9 2.62"
189709 - 189804 16.77" 2 -1.33"
189809 - 189904 18.30" 7 0.20"
189909 - 190004 18.25" 6 0.15"
190009 - 190104 18.65" 8 0.55"
190109 - 190204 16.90" 3 -1.20"
190209 - 190304 20.89" 10 2.79"
190309 - 190404 16.62" 1 -1.48"
190409 - 190504 17.44" 5 -0.66"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published September 2019, retrieved on September 18, 2019 from https://www.ncdc.noaa.gov/cag/