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 (18.66")
1901-1911 Base Period
189510 - 189605 18.31" 5 -0.35"
189610 - 189705 20.06" 13 1.40"
189710 - 189805 18.43" 7 -0.23"
189810 - 189905 18.71" 9 0.05"
189910 - 190005 19.16" 11 0.50"
190010 - 190105 18.38" 6 -0.28"
190110 - 190205 17.32" 4 -1.34"
190210 - 190305 21.16" 16 2.50"
190310 - 190405 17.09" 3 -1.57"
190410 - 190505 18.85" 10 0.19"
190510 - 190605 19.41" 12 0.75"
190610 - 190705 20.24" 14 1.58"
190710 - 190805 20.60" 15 1.94"
190810 - 190905 18.58" 8 -0.08"
190910 - 191005 17.02" 2 -1.64"
191010 - 191105 16.59" 1 -2.07"

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/