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.


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Dates Value Rank Departure From Mean (9.44")
1901-1921 Base Period
189501 - 189504 8.71" 3 -0.73"
189601 - 189604 9.45" 13 0.01"
189701 - 189704 11.22" 27 1.78"
189801 - 189804 8.52" 2 -0.92"
189901 - 189904 9.49" 15 0.05"
190001 - 190004 9.95" 22 0.51"
190101 - 190104 8.94" 6 -0.50"
190201 - 190204 8.76" 4 -0.68"
190301 - 190304 10.30" 25 0.86"
190401 - 190404 9.46" 14 0.02"
190501 - 190504 10.27" 24 0.83"
190601 - 190604 9.59" 17 0.15"
190701 - 190704 9.34" 11 -0.10"
190801 - 190804 9.50" 16 0.06"
190901 - 190904 10.11" 23 0.67"
191001 - 191004 7.34" 1 -2.10"
191101 - 191104 9.13" 7 -0.31"
191201 - 191204 10.58" 26 1.14"
191301 - 191304 9.81" 20 0.37"
191401 - 191404 9.16" 8 -0.28"
191501 - 191504 9.35" 12 -0.09"
191601 - 191604 9.78" 19 0.34"
191701 - 191704 9.16" 8 -0.28"
191801 - 191804 8.80" 5 -0.64"
191901 - 191904 9.67" 18 0.23"
192001 - 192004 9.90" 21 0.46"
192101 - 192104 9.19" 10 -0.25"

Citing This Page

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