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 (24.25")
1901-1915 Base Period
189509 - 189606 22.53" 4 -1.72"
189609 - 189706 25.72" 16 1.47"
189709 - 189806 23.07" 6 -1.18"
189809 - 189906 24.01" 11 -0.24"
189909 - 190006 23.73" 9 -0.52"
190009 - 190106 23.91" 10 -0.34"
190109 - 190206 22.79" 5 -1.46"
190209 - 190306 26.78" 20 2.53"
190309 - 190406 22.32" 3 -1.93"
190409 - 190506 24.48" 12 0.23"
190509 - 190606 25.02" 14 0.77"
190609 - 190706 26.27" 18 2.02"
190709 - 190806 26.13" 17 1.88"
190809 - 190906 23.64" 8 -0.61"
190909 - 191006 21.78" 2 -2.47"
191009 - 191106 20.96" 1 -3.29"
191109 - 191206 26.48" 19 2.23"
191209 - 191306 23.29" 7 -0.96"
191309 - 191406 24.76" 13 0.51"
191409 - 191506 25.12" 15 0.87"

Citing This Page

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