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 (23.66")
1901-1905 Base Period
189507 - 189604 22.46" 3 -1.20"
189607 - 189704 25.94" 9 2.28"
189707 - 189804 22.00" 1 -1.66"
189807 - 189904 24.24" 8 0.58"
189907 - 190004 23.46" 6 -0.20"
190007 - 190104 24.14" 7 0.48"
190107 - 190204 22.19" 2 -1.47"
190207 - 190304 26.28" 10 2.62"
190307 - 190404 22.63" 4 -1.03"
190407 - 190504 23.06" 5 -0.60"

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/