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 (2.27")
1901-1933 Base Period
189501 3.32" 38 1.05"
189601 2.40" 24 0.13"
189701 2.39" 23 0.12"
189801 2.43" 26 0.16"
189901 2.61" 32 0.34"
190001 1.74" 4 -0.53"
190101 1.99" 10 -0.28"
190201 1.45" 2 -0.82"
190301 2.27" 19 0.00"
190401 1.81" 6 -0.46"
190501 2.18" 15 -0.09"
190601 2.53" 30 0.26"
190701 2.75" 35 0.48"
190801 1.82" 7 -0.45"
190901 2.74" 33 0.47"
191001 2.15" 14 -0.12"
191101 2.44" 28 0.17"
191201 1.95" 9 -0.32"
191301 2.87" 36 0.60"
191401 2.50" 29 0.23"
191501 2.75" 35 0.48"
191601 3.79" 39 1.52"
191701 2.19" 16 -0.08"
191801 2.41" 25 0.14"
191901 1.91" 8 -0.36"
192001 2.21" 17 -0.06"
192101 2.11" 13 -0.16"
192201 2.03" 12 -0.24"
192301 2.44" 28 0.17"
192401 2.00" 11 -0.27"
192501 2.29" 20 0.02"
192601 2.36" 22 0.09"
192701 1.77" 5 -0.50"
192801 1.28" 1 -0.99"
192901 2.36" 22 0.09"
193001 2.58" 31 0.31"
193101 1.56" 3 -0.71"
193201 3.25" 37 0.98"
193301 2.25" 18 -0.02"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published November 2019, retrieved on December 7, 2019 from https://www.ncdc.noaa.gov/cag/