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 (26.77")
1901-1911 Base Period
189507 - 189605 25.42" 6 -1.35"
189607 - 189705 28.06" 13 1.29"
189707 - 189805 25.23" 5 -1.54"
189807 - 189905 26.98" 11 0.21"
189907 - 190005 25.91" 7 -0.86"
190007 - 190105 26.80" 10 0.03"
190107 - 190205 25.19" 3 -1.58"
190207 - 190305 29.29" 15 2.52"
190307 - 190405 25.22" 4 -1.55"
190407 - 190505 26.80" 10 0.03"
190507 - 190605 28.04" 12 1.27"
190607 - 190705 29.84" 16 3.07"
190707 - 190805 28.66" 14 1.89"
190807 - 190905 26.30" 8 -0.47"
190907 - 191005 24.74" 2 -2.03"
191007 - 191105 23.60" 1 -3.17"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published October 2019, retrieved on October 19, 2019 from https://www.ncdc.noaa.gov/cag/