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 (21.29")
1901-1950 Base Period
189509 - 189605 19.89" 12 -1.40"
189609 - 189705 22.84" 45 1.55"
189709 - 189805 20.00" 14 -1.29"
189809 - 189905 21.04" 24 -0.25"
189909 - 190005 20.70" 18 -0.59"
190009 - 190105 21.31" 27 0.02"
190109 - 190205 19.90" 13 -1.39"
190209 - 190305 23.90" 54 2.61"
190309 - 190405 19.21" 7 -2.08"
190409 - 190505 21.18" 26 -0.11"
190509 - 190605 21.98" 33 0.69"
190609 - 190705 23.15" 50 1.86"
190709 - 190805 23.11" 49 1.82"
190809 - 190905 20.41" 15 -0.88"
190909 - 191005 19.30" 8 -1.99"
191009 - 191105 18.76" 6 -2.53"
191109 - 191205 23.77" 53 2.48"
191209 - 191305 20.58" 16 -0.71"
191309 - 191405 21.91" 31 0.62"
191409 - 191505 21.94" 32 0.65"
191509 - 191605 22.01" 34 0.72"
191609 - 191705 19.57" 10 -1.72"
191709 - 191805 17.55" 2 -3.74"
191809 - 191905 23.21" 51 1.92"
191909 - 192005 23.09" 48 1.80"
192009 - 192105 21.36" 28 0.07"
192109 - 192205 22.80" 44 1.51"
192209 - 192305 20.64" 17 -0.65"
192309 - 192405 20.80" 19 -0.49"
192409 - 192505 18.09" 3 -3.20"
192509 - 192605 20.80" 19 -0.49"
192609 - 192705 24.38" 55 3.09"
192709 - 192805 21.03" 23 -0.26"
192809 - 192905 21.86" 30 0.57"
192909 - 193005 20.82" 21 -0.47"
193009 - 193105 18.27" 4 -3.02"
193109 - 193205 22.23" 40 0.94"
193209 - 193305 22.17" 39 0.88"
193309 - 193405 17.16" 1 -4.13"
193409 - 193505 22.77" 43 1.48"
193509 - 193605 19.74" 11 -1.55"
193609 - 193705 22.03" 36 0.74"
193709 - 193805 22.95" 46 1.66"
193809 - 193905 19.32" 9 -1.97"
193909 - 194005 18.53" 5 -2.76"
194009 - 194105 21.14" 25 -0.15"
194109 - 194205 23.50" 52 2.21"
194209 - 194305 22.03" 36 0.74"
194309 - 194405 20.84" 22 -0.45"
194409 - 194505 22.06" 38 0.77"
194509 - 194605 23.06" 47 1.77"
194609 - 194705 22.31" 41 1.02"
194709 - 194805 22.04" 37 0.75"
194809 - 194905 22.43" 42 1.14"
194909 - 195005 21.47" 29 0.18"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published October 2019, retrieved on October 23, 2019 from https://www.ncdc.noaa.gov/cag/