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 (10.84")
1901-1911 Base Period
189510 - 189602 10.35" 5 -0.49"
189610 - 189702 11.90" 14 1.06"
189710 - 189802 10.76" 6 -0.08"
189810 - 189902 11.37" 12 0.53"
189910 - 190002 11.02" 9 0.18"
190010 - 190102 10.90" 7 0.06"
190110 - 190202 9.57" 3 -1.27"
190210 - 190302 13.15" 16 2.31"
190310 - 190402 9.28" 1 -1.56"
190410 - 190502 9.37" 2 -1.47"
190510 - 190602 10.91" 8 0.07"
190610 - 190702 12.02" 15 1.18"
190710 - 190802 11.60" 13 0.76"
190810 - 190902 11.05" 10 0.21"
190910 - 191002 11.35" 11 0.51"
191010 - 191102 10.06" 4 -0.78"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published October 2019, retrieved on October 21, 2019 from https://www.ncdc.noaa.gov/cag/