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 (25.06")
1901-1907 Base Period
189505 - 189602 23.29" 4 -1.77"
189605 - 189702 25.50" 8 0.44"
189705 - 189802 22.56" 1 -2.50"
189805 - 189902 25.94" 9 0.88"
189905 - 190002 23.48" 6 -1.58"
190005 - 190102 24.80" 7 -0.26"
190105 - 190202 22.70" 2 -2.36"
190205 - 190302 27.17" 11 2.11"
190305 - 190402 23.30" 5 -1.76"
190405 - 190502 23.02" 3 -2.04"
190505 - 190602 26.58" 10 1.52"
190605 - 190702 27.82" 12 2.76"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published October 2019, retrieved on October 17, 2019 from https://www.ncdc.noaa.gov/cag/