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 (43.28")
1901-1907 Base Period
189509 - 189702 42.43" 4 -0.85"
189609 - 189802 43.28" 7 0.00"
189709 - 189902 42.71" 5 -0.57"
189809 - 190002 41.78" 3 -1.50"
189909 - 190102 43.05" 6 -0.23"
190009 - 190202 41.35" 2 -1.93"
190109 - 190302 44.07" 9 0.79"
190209 - 190402 44.19" 10 0.91"
190309 - 190502 39.64" 1 -3.64"
190409 - 190602 44.02" 8 0.74"
190509 - 190702 46.64" 11 3.36"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published October 2019, retrieved on October 21, 2019 from https://www.ncdc.noaa.gov/cag/