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 (13.29")
1901-1911 Base Period
189509 - 189602 11.93" 3 -1.36"
189609 - 189702 14.68" 14 1.39"
189709 - 189802 12.33" 6 -0.96"
189809 - 189902 13.70" 11 0.41"
189909 - 190002 12.56" 7 -0.73"
190009 - 190102 13.83" 12 0.54"
190109 - 190202 12.15" 4 -1.14"
190209 - 190302 15.89" 16 2.60"
190309 - 190402 11.40" 1 -1.89"
190409 - 190502 11.70" 2 -1.59"
190509 - 190602 13.48" 9 0.19"
190609 - 190702 14.93" 15 1.64"
190709 - 190802 14.11" 13 0.82"
190809 - 190902 12.88" 8 -0.41"
190909 - 191002 13.63" 10 0.34"
191009 - 191102 12.23" 5 -1.06"

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/