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 (15.80")
1901-1909 Base Period
189501 - 189506 14.54" 2 -1.26"
189601 - 189606 15.05" 5 -0.75"
189701 - 189706 16.22" 12 0.42"
189801 - 189806 14.82" 4 -0.98"
189901 - 189906 15.20" 7 -0.60"
190001 - 190006 15.43" 8 -0.37"
190101 - 190106 14.20" 1 -1.60"
190201 - 190206 14.65" 3 -1.15"
190301 - 190306 16.19" 11 0.39"
190401 - 190406 15.16" 6 -0.64"
190501 - 190506 17.31" 15 1.51"
190601 - 190606 15.79" 9 -0.01"
190701 - 190706 15.91" 10 0.11"
190801 - 190806 16.65" 14 0.85"
190901 - 190906 16.38" 13 0.58"

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/