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 (16.10")
1901-1907 Base Period
189508 - 189602 14.46" 3 -1.64"
189608 - 189702 16.68" 9 0.58"
189708 - 189802 14.63" 4 -1.47"
189808 - 189902 16.76" 10 0.66"
189908 - 190002 14.82" 5 -1.28"
190008 - 190102 16.25" 8 0.15"
190108 - 190202 15.12" 6 -0.98"
190208 - 190302 18.19" 11 2.09"
190308 - 190402 14.44" 2 -1.66"
190408 - 190502 14.39" 1 -1.71"
190508 - 190602 16.02" 7 -0.08"
190608 - 190702 18.32" 12 2.22"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published October 2019, retrieved on October 16, 2019 from https://www.ncdc.noaa.gov/cag/