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
Date Value Rank Departure From Mean (2.54")
1901-1910 Base Period
189503 1.99" 2 -0.55"
189603 2.41" 7 -0.13"
189703 3.62" 16 1.08"
189803 2.42" 8 -0.12"
189903 2.82" 10 0.28"
190003 2.28" 5 -0.26"
190103 2.29" 6 -0.25"
190203 2.90" 11 0.36"
190303 3.01" 13 0.47"
190403 3.10" 14 0.56"
190503 2.94" 12 0.40"
190603 3.26" 15 0.72"
190703 2.45" 9 -0.09"
190803 2.18" 3 -0.36"
190903 2.21" 4 -0.33"
191003 1.02" 1 -1.52"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published October 2019, retrieved on October 20, 2019 from https://www.ncdc.noaa.gov/cag/