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 (25.00")
1901-1911 Base Period
189505 - 189602 23.29" 5 -1.71"
189605 - 189702 25.50" 10 0.50"
189705 - 189802 22.56" 2 -2.44"
189805 - 189902 25.94" 12 0.94"
189905 - 190002 23.48" 7 -1.52"
190005 - 190102 24.80" 8 -0.20"
190105 - 190202 22.70" 3 -2.30"
190205 - 190302 27.17" 15 2.17"
190305 - 190402 23.30" 6 -1.70"
190405 - 190502 23.02" 4 -1.98"
190505 - 190602 26.58" 14 1.58"
190605 - 190702 27.82" 16 2.82"
190705 - 190802 26.23" 13 1.23"
190805 - 190902 25.92" 11 0.92"
190905 - 191002 25.34" 9 0.34"
191005 - 191102 22.14" 1 -2.86"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published October 2019, retrieved on October 19, 2019 from https://www.ncdc.noaa.gov/cag/