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 (18.52")
1901-1919 Base Period
189508 - 189603 16.87" 4 -1.65"
189608 - 189703 20.30" 20 1.78"
189708 - 189803 17.05" 5 -1.47"
189808 - 189903 19.58" 18 1.06"
189908 - 190003 17.10" 7 -1.42"
190008 - 190103 18.54" 12 0.02"
190108 - 190203 18.02" 11 -0.50"
190208 - 190303 21.20" 24 2.68"
190308 - 190403 17.54" 9 -0.98"
190408 - 190503 17.33" 8 -1.19"
190508 - 190603 19.28" 17 0.76"
190608 - 190703 20.77" 23 2.25"
190708 - 190803 18.84" 14 0.32"
190808 - 190903 17.97" 10 -0.55"
190908 - 191003 17.06" 6 -1.46"
191008 - 191103 16.19" 2 -2.33"
191108 - 191203 20.60" 22 2.08"
191208 - 191303 19.07" 16 0.55"
191308 - 191403 18.60" 13 0.08"
191408 - 191503 18.90" 15 0.38"
191508 - 191603 20.47" 21 1.95"
191608 - 191703 16.78" 3 -1.74"
191708 - 191803 14.58" 1 -3.94"
191808 - 191903 20.07" 19 1.55"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published October 2019, retrieved on October 22, 2019 from https://www.ncdc.noaa.gov/cag/