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 (27.35")
1901-1909 Base Period
189508 - 189606 25.06" 1 -2.29"
189608 - 189706 27.72" 11 0.37"
189708 - 189806 25.37" 3 -1.98"
189808 - 189906 27.07" 8 -0.28"
189908 - 190006 25.99" 5 -1.36"
190008 - 190106 26.33" 6 -1.02"
190108 - 190206 25.76" 4 -1.59"
190208 - 190306 29.08" 13 1.73"
190308 - 190406 25.36" 2 -1.99"
190408 - 190506 27.17" 9 -0.18"
190508 - 190606 27.56" 10 0.21"
190608 - 190706 29.66" 14 2.31"
190708 - 190806 28.68" 12 1.33"
190808 - 190906 26.52" 7 -0.83"

Citing This Page

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