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 (8.89")
1901-1911 Base Period
189511 - 189602 9.27" 11 0.38"
189611 - 189702 9.75" 13 0.86"
189711 - 189802 8.93" 9 0.04"
189811 - 189902 8.87" 8 -0.02"
189911 - 190002 8.61" 6 -0.28"
190011 - 190102 8.15" 5 -0.74"
190111 - 190202 8.06" 4 -0.83"
190211 - 190302 11.22" 16 2.33"
190311 - 190402 7.51" 1 -1.38"
190411 - 190502 7.71" 2 -1.18"
190511 - 190602 8.74" 7 -0.15"
190611 - 190702 9.94" 15 1.05"
190711 - 190802 9.57" 12 0.68"
190811 - 190902 9.02" 10 0.13"
190911 - 191002 9.81" 14 0.92"
191011 - 191102 8.02" 3 -0.87"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published October 2019, retrieved on October 16, 2019 from https://www.ncdc.noaa.gov/cag/