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 (15.89")
1901-1929 Base Period
189509 - 189603 14.34" 5 -1.55"
189609 - 189703 18.30" 32 2.41"
189709 - 189803 14.75" 10 -1.14"
189809 - 189903 16.52" 23 0.63"
189909 - 190003 14.84" 11 -1.05"
190009 - 190103 16.12" 20 0.23"
190109 - 190203 15.05" 12 -0.84"
190209 - 190303 18.90" 34 3.01"
190309 - 190403 14.50" 6 -1.39"
190409 - 190503 14.64" 7 -1.25"
190509 - 190603 16.74" 26 0.85"
190609 - 190703 17.38" 29 1.49"
190709 - 190803 16.29" 21 0.40"
190809 - 190903 15.09" 13 -0.80"
190909 - 191003 14.65" 8 -1.24"
191009 - 191103 13.94" 2 -1.95"
191109 - 191203 17.54" 30 1.65"
191209 - 191303 16.02" 17 0.13"
191309 - 191403 16.70" 25 0.81"
191409 - 191503 15.73" 15 -0.16"
191509 - 191603 17.04" 28 1.15"
191609 - 191703 14.25" 4 -1.64"
191709 - 191803 12.14" 1 -3.75"
191809 - 191903 17.60" 31 1.71"
191909 - 192003 17.00" 27 1.11"
192009 - 192103 16.02" 18 0.13"
192109 - 192203 16.61" 24 0.72"
192209 - 192303 14.67" 9 -1.22"
192309 - 192403 16.12" 20 0.23"
192409 - 192503 14.07" 3 -1.82"
192509 - 192603 16.41" 22 0.52"
192609 - 192703 18.34" 33 2.45"
192709 - 192803 15.77" 16 -0.12"
192809 - 192903 15.42" 14 -0.47"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published October 2019, retrieved on October 15, 2019 from https://www.ncdc.noaa.gov/cag/