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 (21.68")
1901-1910 Base Period
189507 - 189603 19.87" 1 -1.81"
189607 - 189703 23.52" 13 1.84"
189707 - 189803 19.98" 2 -1.70"
189807 - 189903 22.46" 11 0.78"
189907 - 190003 20.05" 3 -1.63"
190007 - 190103 21.61" 9 -0.07"
190107 - 190203 20.34" 6 -1.34"
190207 - 190303 24.29" 15 2.61"
190307 - 190403 20.51" 7 -1.17"
190407 - 190503 20.26" 5 -1.42"
190507 - 190603 22.80" 12 1.12"
190607 - 190703 24.07" 14 2.39"
190707 - 190803 21.84" 10 0.16"
190807 - 190903 20.98" 8 -0.70"
190907 - 191003 20.09" 4 -1.59"

Citing This Page

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