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, May 2002

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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
May 2002 1-Month	0.26" (6.60mm)	1.11" (28.19mm)	-0.85" (-21.59mm)	2nd Driest	Driest since: 1974	1974
May 2002 1-Month	0.26" (6.60mm)	1.11" (28.19mm)	-0.85" (-21.59mm)	127th Wettest	Wettest since: 2001	2015
Apr–May 2002 2-Month	0.69" (17.53mm)	2.17" (55.12mm)	-1.48" (-37.59mm)	1st Driest	Driest since: 2002	2002
Apr–May 2002 2-Month	0.69" (17.53mm)	2.17" (55.12mm)	-1.48" (-37.59mm)	128th Wettest	Wettest since: 2001	1941
Mar–May 2002 3-Month	1.24" (31.50mm)	3.33" (84.58mm)	-2.09" (-53.08mm)	1st Driest	Driest since: 2002	2002
Mar–May 2002 3-Month	1.24" (31.50mm)	3.33" (84.58mm)	-2.09" (-53.08mm)	128th Wettest	Wettest since: 2001	1941
Feb–May 2002 4-Month	1.54" (39.12mm)	4.33" (109.98mm)	-2.79" (-70.86mm)	1st Driest	Driest since: 2002	2002
Feb–May 2002 4-Month	1.54" (39.12mm)	4.33" (109.98mm)	-2.79" (-70.86mm)	128th Wettest	Wettest since: 2001	1905
Jan–May 2002 5-Month	1.98" (50.29mm)	5.31" (134.87mm)	-3.33" (-84.58mm)	2nd Driest	Driest since: 1972	1972
Jan–May 2002 5-Month	1.98" (50.29mm)	5.31" (134.87mm)	-3.33" (-84.58mm)	127th Wettest	Wettest since: 2001	1905
Dec 2001–May 2002 6-Month	2.70" (68.58mm)	6.32" (160.53mm)	-3.62" (-91.95mm)	1st Driest	Driest since: 2002	2002
Dec 2001–May 2002 6-Month	2.70" (68.58mm)	6.32" (160.53mm)	-3.62" (-91.95mm)	127th Wettest	Wettest since: 2001	1905
Nov 2001–May 2002 7-Month	3.64" (92.46mm)	7.21" (183.13mm)	-3.57" (-90.67mm)	1st Driest	Driest since: 2002	2002
Nov 2001–May 2002 7-Month	3.64" (92.46mm)	7.21" (183.13mm)	-3.57" (-90.67mm)	127th Wettest	Wettest since: 2001	1941
Oct 2001–May 2002 8-Month	4.08" (103.63mm)	8.34" (211.84mm)	-4.26" (-108.21mm)	1st Driest	Driest since: 2002	2002
Oct 2001–May 2002 8-Month	4.08" (103.63mm)	8.34" (211.84mm)	-4.26" (-108.21mm)	127th Wettest	Wettest since: 2001	1941
Sep 2001–May 2002 9-Month	4.77" (121.16mm)	9.71" (246.63mm)	-4.94" (-125.47mm)	1st Driest	Driest since: 2002	2002
Sep 2001–May 2002 9-Month	4.77" (121.16mm)	9.71" (246.63mm)	-4.94" (-125.47mm)	127th Wettest	Wettest since: 2001	1941
Aug 2001–May 2002 10-Month	6.74" (171.20mm)	11.72" (297.69mm)	-4.98" (-126.49mm)	1st Driest	Driest since: 2002	2002
Aug 2001–May 2002 10-Month	6.74" (171.20mm)	11.72" (297.69mm)	-4.98" (-126.49mm)	127th Wettest	Wettest since: 2001	1941
Jul 2001–May 2002 11-Month	8.44" (214.38mm)	13.59" (345.19mm)	-5.15" (-130.81mm)	2nd Driest	Driest since: 2002	2021
Jul 2001–May 2002 11-Month	8.44" (214.38mm)	13.59" (345.19mm)	-5.15" (-130.81mm)	126th Wettest	Wettest since: 2001	1941
Jun 2001–May 2002 12-Month	9.04" (229.62mm)	14.53" (369.06mm)	-5.49" (-139.44mm)	2nd Driest	Driest since: 2002	2021
Jun 2001–May 2002 12-Month	9.04" (229.62mm)	14.53" (369.06mm)	-5.49" (-139.44mm)	126th Wettest	Wettest since: 2001	1905
Dec 2000–May 2002 18-Month	15.22" (386.59mm)	20.86" (529.84mm)	-5.64" (-143.25mm)	3rd Driest	Driest since: 2002	2021
Dec 2000–May 2002 18-Month	15.22" (386.59mm)	20.86" (529.84mm)	-5.64" (-143.25mm)	124th Wettest	Wettest since: 2001	1942
Jun 2000–May 2002 24-Month	23.89" (606.81mm)	29.05" (737.87mm)	-5.16" (-131.06mm)	12th Driest	Driest since: 1977	2021
Jun 2000–May 2002 24-Month	23.89" (606.81mm)	29.05" (737.87mm)	-5.16" (-131.06mm)	115th Wettest	Wettest since: 2001	1942
Jun 1999–May 2002 36-Month	37.43" (950.72mm)	43.54" (1,105.92mm)	-6.11" (-155.20mm)	12th Driest	Driest since: 1957	2022
Jun 1999–May 2002 36-Month	37.43" (950.72mm)	43.54" (1,105.92mm)	-6.11" (-155.20mm)	114th Wettest	Wettest since: 2001	1907
Jun 1998–May 2002 48-Month	53.12" (1,349.25mm)	58.01" (1,473.45mm)	-4.89" (-124.20mm)	23rd Driest	Driest since: 1977	1904
Jun 1998–May 2002 48-Month	53.12" (1,349.25mm)	58.01" (1,473.45mm)	-4.89" (-124.20mm)	102nd Wettest	Wettest since: 2001	1986
Jun 1997–May 2002 60-Month	70.56" (1,792.22mm)	72.48" (1,840.99mm)	-1.92" (-48.77mm)	55th Driest	Driest since: 1978	1957
Jun 1997–May 2002 60-Month	70.56" (1,792.22mm)	72.48" (1,840.99mm)	-1.92" (-48.77mm)	69th Wettest	Wettest since: 2001	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