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 (26.56")
1901-1905 Base Period
189506 - 189604 25.41" 3 -1.15"
189606 - 189704 28.58" 9 2.02"
189706 - 189804 24.88" 2 -1.68"
189806 - 189904 27.31" 8 0.75"
189906 - 190004 26.43" 6 -0.13"
190006 - 190104 27.17" 7 0.61"
190106 - 190204 24.79" 1 -1.77"
190206 - 190304 29.17" 10 2.61"
190306 - 190404 25.51" 4 -1.05"
190406 - 190504 26.17" 5 -0.39"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published September 2019, retrieved on September 15, 2019 from https://www.ncdc.noaa.gov/cag/