Regional Rankings

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Please note, Palmer Indices are not available for NWS Regions. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Southwest Climate Region

Precipitation Rankings, June 2021

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Record Driest

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
June 2021 1-Month	0.90" (22.86mm)	0.94" (23.88mm)	-0.04" (-1.02mm)	75th Driest	Driest since: 2020	1924, 2012
	0.90" (22.86mm)	0.94" (23.88mm)	-0.04" (-1.02mm)	54th Wettest	Wettest since: 2015	1903
	Ties: 1895
May–Jun 2021 2-Month	2.03" (51.56mm)	2.05" (52.07mm)	-0.02" (-0.51mm)	77th Driest	Driest since: 2020	2002
	2.03" (51.56mm)	2.05" (52.07mm)	-0.02" (-0.51mm)	52nd Wettest	Wettest since: 2019	2015
	Ties: 1933
Apr–Jun 2021 3-Month	2.58" (65.53mm)	3.11" (78.99mm)	-0.53" (-13.46mm)	42nd Driest	Driest since: 2020	2002
Apr–Jun 2021 3-Month	2.58" (65.53mm)	3.11" (78.99mm)	-0.53" (-13.46mm)	87th Wettest	Wettest since: 2019	1941
Mar–Jun 2021 4-Month	3.67" (93.22mm)	4.26" (108.20mm)	-0.59" (-14.98mm)	44th Driest	Driest since: 2020	2002
Mar–Jun 2021 4-Month	3.67" (93.22mm)	4.26" (108.20mm)	-0.59" (-14.98mm)	85th Wettest	Wettest since: 2019	1941
Feb–Jun 2021 5-Month	4.30" (109.22mm)	5.26" (133.60mm)	-0.96" (-24.38mm)	34th Driest	Driest since: 2020	2002
Feb–Jun 2021 5-Month	4.30" (109.22mm)	5.26" (133.60mm)	-0.96" (-24.38mm)	95th Wettest	Wettest since: 2019	1905
Jan–Jun 2021 6-Month	5.12" (130.05mm)	6.25" (158.75mm)	-1.13" (-28.70mm)	36th Driest	Driest since: 2020	2002
Jan–Jun 2021 6-Month	5.12" (130.05mm)	6.25" (158.75mm)	-1.13" (-28.70mm)	93rd Wettest	Wettest since: 2019	1905
Dec 2020–Jun 2021 7-Month	5.68" (144.27mm)	7.26" (184.40mm)	-1.58" (-40.13mm)	27th Driest	Driest since: 2018	2002
	5.68" (144.27mm)	7.26" (184.40mm)	-1.58" (-40.13mm)	101st Wettest	Wettest since: 2020	1941
	Ties: 1961
Nov 2020–Jun 2021 8-Month	6.18" (156.97mm)	8.15" (207.01mm)	-1.97" (-50.04mm)	23rd Driest	Driest since: 2018	2002
	6.18" (156.97mm)	8.15" (207.01mm)	-1.97" (-50.04mm)	105th Wettest	Wettest since: 2020	1941
	Ties: 1989
Oct 2020–Jun 2021 9-Month	6.58" (167.13mm)	9.28" (235.71mm)	-2.70" (-68.58mm)	15th Driest	Driest since: 2018	2002
	6.58" (167.13mm)	9.28" (235.71mm)	-2.70" (-68.58mm)	113th Wettest	Wettest since: 2020	1941
	Ties: 1996
Sep 2020–Jun 2021 10-Month	7.13" (181.10mm)	10.65" (270.51mm)	-3.52" (-89.41mm)	6th Driest	Driest since: 2018	2002
Sep 2020–Jun 2021 10-Month	7.13" (181.10mm)	10.65" (270.51mm)	-3.52" (-89.41mm)	122nd Wettest	Wettest since: 2020	1941
Aug 2020–Jun 2021 11-Month	7.72" (196.09mm)	12.66" (321.56mm)	-4.94" (-125.47mm)	2nd Driest	Driest since: 2002	2002
Aug 2020–Jun 2021 11-Month	7.72" (196.09mm)	12.66" (321.56mm)	-4.94" (-125.47mm)	126th Wettest	Wettest since: 2020	1941
Jul 2020–Jun 2021 12-Month	9.08" (230.63mm)	14.53" (369.06mm)	-5.45" (-138.43mm)	2nd Driest	Driest since: 2002	2002
Jul 2020–Jun 2021 12-Month	9.08" (230.63mm)	14.53" (369.06mm)	-5.45" (-138.43mm)	126th Wettest	Wettest since: 2020	1941
Jan 2020–Jun 2021 18-Month	13.72" (348.49mm)	20.78" (527.81mm)	-7.06" (-179.32mm)	1st Driest	Driest since: 2021	2021
Jan 2020–Jun 2021 18-Month	13.72" (348.49mm)	20.78" (527.81mm)	-7.06" (-179.32mm)	127th Wettest	Wettest since: 2020	1942
Jul 2019–Jun 2021 24-Month	21.12" (536.45mm)	29.06" (738.12mm)	-7.94" (-201.67mm)	1st Driest	Driest since: 2021	2021
Jul 2019–Jun 2021 24-Month	21.12" (536.45mm)	29.06" (738.12mm)	-7.94" (-201.67mm)	126th Wettest	Wettest since: 2020	1942
Jul 2018–Jun 2021 36-Month	38.18" (969.77mm)	43.54" (1,105.92mm)	-5.36" (-136.15mm)	16th Driest	Driest since: 2014	2022
Jul 2018–Jun 2021 36-Month	38.18" (969.77mm)	43.54" (1,105.92mm)	-5.36" (-136.15mm)	110th Wettest	Wettest since: 2020	1907
Jul 2017–Jun 2021 48-Month	49.47" (1,256.54mm)	58.01" (1,473.45mm)	-8.54" (-216.91mm)	8th Driest	Driest since: 2013	1956
Jul 2017–Jun 2021 48-Month	49.47" (1,256.54mm)	58.01" (1,473.45mm)	-8.54" (-216.91mm)	117th Wettest	Wettest since: 2020	1986
Jul 2016–Jun 2021 60-Month	64.59" (1,640.59mm)	72.49" (1,841.25mm)	-7.90" (-200.66mm)	13th Driest	Driest since: 2014	1957
Jul 2016–Jun 2021 60-Month	64.59" (1,640.59mm)	72.49" (1,841.25mm)	-7.90" (-200.66mm)	111th Wettest	Wettest since: 2020	1987

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on February 4, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings