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 (9.55")
1901-1905 Base Period
189501 - 189504 8.71" 2 -0.84"
189601 - 189604 9.45" 5 -0.10"
189701 - 189704 11.22" 11 1.67"
189801 - 189804 8.52" 1 -1.03"
189901 - 189904 9.49" 7 -0.06"
190001 - 190004 9.95" 8 0.40"
190101 - 190104 8.94" 4 -0.61"
190201 - 190204 8.76" 3 -0.79"
190301 - 190304 10.30" 10 0.75"
190401 - 190404 9.46" 6 -0.09"
190501 - 190504 10.27" 9 0.72"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published September 2019, retrieved on September 22, 2019 from https://www.ncdc.noaa.gov/cag/