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 (18.98")
1901-1988 Base Period
189507 - 189602 17.46" 20 -1.52"
189607 - 189702 19.90" 68 0.92"
189707 - 189802 17.56" 22 -1.42"
189807 - 189902 19.64" 61 0.66"
189907 - 190002 17.77" 24 -1.21"
190007 - 190102 19.32" 50 0.34"
190107 - 190202 17.44" 19 -1.54"
190207 - 190302 21.28" 85 2.30"
190307 - 190402 17.41" 18 -1.57"
190407 - 190502 17.32" 16 -1.66"
190507 - 190602 19.54" 56 0.56"
190607 - 190702 21.62" 88 2.64"
190707 - 190802 19.66" 62 0.68"
190807 - 190902 18.77" 37 -0.21"
190907 - 191002 19.07" 47 0.09"
191007 - 191102 17.07" 14 -1.91"
191107 - 191202 20.07" 69 1.09"
191207 - 191302 19.07" 46 0.09"
191307 - 191402 19.39" 53 0.41"
191407 - 191502 19.84" 67 0.86"
191507 - 191602 21.91" 91 2.93"
191607 - 191702 17.52" 21 -1.46"
191707 - 191802 15.24" 2 -3.74"
191807 - 191902 19.69" 64 0.71"
191907 - 192002 19.74" 65 0.76"
192007 - 192102 19.60" 59 0.62"
192107 - 192202 18.61" 34 -0.37"
192207 - 192302 17.37" 17 -1.61"
192307 - 192402 19.52" 54 0.54"
192407 - 192502 17.09" 15 -1.89"
192507 - 192602 18.81" 39 -0.17"
192607 - 192702 21.83" 90 2.85"
192707 - 192802 18.94" 44 -0.04"
192807 - 192902 18.83" 40 -0.15"
192907 - 193002 18.21" 28 -0.77"
193007 - 193102 15.35" 3 -3.63"
193107 - 193202 20.79" 80 1.81"
193207 - 193302 19.22" 48 0.24"
193307 - 193402 16.93" 12 -2.05"
193407 - 193502 17.91" 26 -1.07"
193507 - 193602 18.50" 32 -0.48"
193607 - 193702 19.39" 53 0.41"
193707 - 193802 18.89" 43 -0.09"
193807 - 193902 18.29" 29 -0.69"
193907 - 194002 16.07" 6 -2.91"
194007 - 194102 18.84" 41 -0.14"
194107 - 194202 20.97" 83 1.99"
194207 - 194302 19.31" 49 0.33"
194307 - 194402 16.20" 7 -2.78"
194407 - 194502 18.29" 29 -0.69"
194507 - 194602 20.63" 78 1.65"
194607 - 194702 18.99" 45 0.01"
194707 - 194802 18.11" 27 -0.87"
194807 - 194902 20.19" 73 1.21"
194907 - 195002 19.59" 58 0.61"
195007 - 195102 19.64" 61 0.66"
195107 - 195202 20.32" 74 1.34"
195207 - 195302 16.38" 11 -2.60"
195307 - 195402 16.27" 8 -2.71"
195407 - 195502 16.28" 9 -2.70"
195507 - 195602 18.86" 42 -0.12"
195607 - 195702 16.00" 5 -2.98"
195707 - 195802 20.33" 75 1.35"
195807 - 195902 18.68" 36 -0.30"
195907 - 196002 20.81" 81 1.83"
196007 - 196102 18.33" 31 -0.65"
196107 - 196202 20.49" 76 1.51"
196207 - 196302 16.99" 13 -1.99"
196307 - 196402 16.32" 10 -2.66"
196407 - 196502 19.59" 58 0.61"
196507 - 196602 19.37" 51 0.39"
196607 - 196702 17.75" 23 -1.23"
196707 - 196802 18.55" 33 -0.43"
196807 - 196902 20.91" 82 1.93"
196907 - 197002 18.65" 35 -0.33"
197007 - 197102 19.54" 56 0.56"
197107 - 197202 20.67" 79 1.69"
197207 - 197302 21.57" 87 2.59"
197307 - 197402 21.94" 92 2.96"
197407 - 197502 20.12" 71 1.14"
197507 - 197602 18.80" 38 -0.18"
197607 - 197702 14.91" 1 -4.07"
197707 - 197802 22.05" 93 3.07"
197807 - 197902 20.11" 70 1.13"
197907 - 198002 19.77" 66 0.79"
198007 - 198102 15.68" 4 -3.30"
198107 - 198202 20.52" 77 1.54"
198207 - 198302 21.79" 89 2.81"
198307 - 198402 20.14" 72 1.16"
198407 - 198502 19.68" 63 0.70"
198507 - 198602 21.10" 84 2.12"
198607 - 198702 21.41" 86 2.43"
198707 - 198802 17.82" 25 -1.16"

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published October 2019, retrieved on October 19, 2019 from https://www.ncdc.noaa.gov/cag/