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 (18.35")
1901-1921 Base Period
189509 - 189604 16.93" 7 -1.42"
189609 - 189704 20.72" 24 2.37"
189709 - 189804 16.77" 4 -1.58"
189809 - 189904 18.30" 14 -0.05"
189909 - 190004 18.25" 13 -0.10"
190009 - 190104 18.65" 15 0.30"
190109 - 190204 16.90" 6 -1.45"
190209 - 190304 20.89" 26 2.54"
190309 - 190404 16.62" 2 -1.73"
190409 - 190504 17.44" 10 -0.91"
190509 - 190604 18.82" 17 0.47"
190609 - 190704 19.70" 21 1.35"
190709 - 190804 18.98" 18 0.63"
190809 - 190904 17.37" 9 -0.98"
190909 - 191004 16.71" 3 -1.64"
191009 - 191104 16.79" 5 -1.56"
191109 - 191204 20.88" 25 2.53"
191209 - 191304 18.07" 12 -0.28"
191309 - 191404 19.43" 20 1.08"
191409 - 191504 18.05" 11 -0.30"
191509 - 191604 19.13" 19 0.78"
191609 - 191704 16.93" 7 -1.42"
191709 - 191804 14.96" 1 -3.39"
191809 - 191904 20.01" 22 1.66"
191909 - 192004 20.30" 23 1.95"
192009 - 192104 18.81" 16 0.46"

Citing This Page

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