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 (4.55")
1901-1911 Base Period
189501 - 189502 4.73" 13 0.18"
189601 - 189602 4.45" 8 -0.10"
189701 - 189702 5.18" 15 0.63"
189801 - 189802 4.08" 2 -0.47"
189901 - 189902 4.89" 14 0.34"
190001 - 190002 4.26" 6 -0.29"
190101 - 190102 4.12" 3 -0.43"
190201 - 190202 4.01" 1 -0.54"
190301 - 190302 5.30" 16 0.75"
190401 - 190402 4.24" 4 -0.31"
190501 - 190502 4.53" 9 -0.02"
190601 - 190602 4.25" 5 -0.30"
190701 - 190702 4.57" 11 0.02"
190801 - 190802 4.63" 12 0.08"
190901 - 190902 5.62" 17 1.07"
191001 - 191002 4.26" 6 -0.29"
191101 - 191102 4.57" 11 0.02"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published October 2019, retrieved on October 23, 2019 from https://www.ncdc.noaa.gov/cag/