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 (20.10")
1901-1909 Base Period
189511 - 189606 19.87" 8 -0.23"
189611 - 189706 20.79" 11 0.69"
189711 - 189806 19.67" 5 -0.43"
189811 - 189906 19.18" 4 -0.92"
189911 - 190006 19.78" 6 -0.32"
190011 - 190106 18.23" 1 -1.87"
190111 - 190206 18.70" 3 -1.40"
190211 - 190306 22.11" 14 2.01"
190311 - 190406 18.43" 2 -1.67"
190411 - 190506 20.49" 10 0.39"
190511 - 190606 20.28" 9 0.18"
190611 - 190706 21.28" 12 1.18"
190711 - 190806 21.59" 13 1.49"
190811 - 190906 19.78" 6 -0.32"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published October 2019, retrieved on October 20, 2019 from https://www.ncdc.noaa.gov/cag/