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 (2.97")
1901-1919 Base Period
189505 2.88" 13 -0.09"
189605 2.96" 15 -0.01"
189705 2.12" 2 -0.85"
189805 3.23" 21 0.26"
189905 2.74" 11 -0.23"
190005 2.45" 3 -0.52"
190105 2.66" 10 -0.31"
190205 3.00" 16 0.03"
190305 3.01" 17 0.04"
190405 2.59" 6 -0.38"
190505 3.74" 23 0.77"
190605 3.16" 19 0.19"
190705 3.45" 22 0.48"
190805 4.13" 25 1.16"
190905 3.04" 18 0.07"
191005 2.59" 6 -0.38"
191105 1.97" 1 -1.00"
191205 2.89" 14 -0.08"
191305 2.51" 5 -0.46"
191405 2.48" 4 -0.49"
191505 3.89" 24 0.92"
191605 2.88" 12 -0.09"
191705 2.64" 9 -0.33"
191805 2.59" 6 -0.38"
191905 3.20" 20 0.23"

Citing This Page

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