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 (20.78")
1901-1905 Base Period
189508 - 189604 19.46" 2 -1.32"
189608 - 189704 22.72" 9 1.94"
189708 - 189804 19.07" 1 -1.71"
189808 - 189904 21.36" 8 0.58"
189908 - 190004 20.51" 6 -0.27"
190008 - 190104 21.07" 7 0.29"
190108 - 190204 19.87" 4 -0.91"
190208 - 190304 23.19" 10 2.41"
190308 - 190404 19.66" 3 -1.12"
190408 - 190504 20.13" 5 -0.65"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published September 2019, retrieved on September 17, 2019 from https://www.ncdc.noaa.gov/cag/