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 1904

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
May 1904 1-Month	1.31" (33.27mm)	1.11" (28.19mm)	0.20" (5.08mm)	94th Driest	Driest since: 1903	1974
May 1904 1-Month	1.31" (33.27mm)	1.11" (28.19mm)	0.20" (5.08mm)	35th Wettest	Wettest since: 1901	2015
Apr–May 1904 2-Month	1.80" (45.72mm)	2.17" (55.12mm)	-0.37" (-9.40mm)	47th Driest	Driest since: 1903	2002
	1.80" (45.72mm)	2.17" (55.12mm)	-0.37" (-9.40mm)	82nd Wettest	Wettest since: 1903	1941
	Ties: 1903
Mar–May 1904 3-Month	2.87" (72.90mm)	3.33" (84.58mm)	-0.46" (-11.68mm)	43rd Driest	Driest since: 1902	2002
Mar–May 1904 3-Month	2.87" (72.90mm)	3.33" (84.58mm)	-0.46" (-11.68mm)	86th Wettest	Wettest since: 1903	1941
Feb–May 1904 4-Month	3.53" (89.66mm)	4.33" (109.98mm)	-0.80" (-20.32mm)	38th Driest	Driest since: 1902	2002
	3.53" (89.66mm)	4.33" (109.98mm)	-0.80" (-20.32mm)	91st Wettest	Wettest since: 1903	1905
	Ties: 1913
Jan–May 1904 5-Month	3.90" (99.06mm)	5.31" (134.87mm)	-1.41" (-35.81mm)	24th Driest	Driest since: 1902	1972
Jan–May 1904 5-Month	3.90" (99.06mm)	5.31" (134.87mm)	-1.41" (-35.81mm)	105th Wettest	Wettest since: 1903	1905
Dec 1903–May 1904 6-Month	4.10" (104.14mm)	6.32" (160.53mm)	-2.22" (-56.39mm)	6th Driest	Driest since: 1896	2002
Dec 1903–May 1904 6-Month	4.10" (104.14mm)	6.32" (160.53mm)	-2.22" (-56.39mm)	122nd Wettest	Wettest since: 1903	1905
Nov 1903–May 1904 7-Month	4.27" (108.46mm)	7.21" (183.13mm)	-2.94" (-74.67mm)	5th Driest	Driest since: 1904	2002
Nov 1903–May 1904 7-Month	4.27" (108.46mm)	7.21" (183.13mm)	-2.94" (-74.67mm)	123rd Wettest	Wettest since: 1903	1941
Oct 1903–May 1904 8-Month	4.79" (121.67mm)	8.34" (211.84mm)	-3.55" (-90.17mm)	3rd Driest	Driest since: 1904	2002
Oct 1903–May 1904 8-Month	4.79" (121.67mm)	8.34" (211.84mm)	-3.55" (-90.17mm)	125th Wettest	Wettest since: 1903	1941
Sep 1903–May 1904 9-Month	6.22" (157.99mm)	9.71" (246.63mm)	-3.49" (-88.64mm)	3rd Driest	Driest since: 1904	2002
Sep 1903–May 1904 9-Month	6.22" (157.99mm)	9.71" (246.63mm)	-3.49" (-88.64mm)	125th Wettest	Wettest since: 1903	1941
Aug 1903–May 1904 10-Month	7.61" (193.29mm)	11.72" (297.69mm)	-4.11" (-104.40mm)	4th Driest	Driest since: 1904	2002
Aug 1903–May 1904 10-Month	7.61" (193.29mm)	11.72" (297.69mm)	-4.11" (-104.40mm)	124th Wettest	Wettest since: 1903	1941
Jul 1903–May 1904 11-Month	8.67" (220.22mm)	13.59" (345.19mm)	-4.92" (-124.97mm)	3rd Driest	Driest since: 1904	2021
Jul 1903–May 1904 11-Month	8.67" (220.22mm)	13.59" (345.19mm)	-4.92" (-124.97mm)	125th Wettest	Wettest since: 1903	1941
Jun 1903–May 1904 12-Month	10.63" (270.00mm)	14.53" (369.06mm)	-3.90" (-99.06mm)	6th Driest	Driest since: 1902	2021
Jun 1903–May 1904 12-Month	10.63" (270.00mm)	14.53" (369.06mm)	-3.90" (-99.06mm)	122nd Wettest	Wettest since: 1903	1905
Dec 1902–May 1904 18-Month	16.68" (423.67mm)	20.86" (529.84mm)	-4.18" (-106.17mm)	13th Driest	Driest since: 1902	2021
Dec 1902–May 1904 18-Month	16.68" (423.67mm)	20.86" (529.84mm)	-4.18" (-106.17mm)	114th Wettest	Wettest since: 1903	1942
Jun 1902–May 1904 24-Month	23.50" (596.90mm)	29.05" (737.87mm)	-5.55" (-140.97mm)	9th Driest	Driest since: 1903	2021
Jun 1902–May 1904 24-Month	23.50" (596.90mm)	29.05" (737.87mm)	-5.55" (-140.97mm)	118th Wettest	Wettest since: 1901	1942
Jun 1901–May 1904 36-Month	33.93" (861.82mm)	43.54" (1,105.92mm)	-9.61" (-244.10mm)	2nd Driest	Driest since: 1904	2022
Jun 1901–May 1904 36-Month	33.93" (861.82mm)	43.54" (1,105.92mm)	-9.61" (-244.10mm)	124th Wettest	Wettest since: 1903	1907
Jun 1900–May 1904 48-Month	46.31" (1,176.27mm)	58.01" (1,473.45mm)	-11.70" (-297.18mm)	1st Driest	Driest since: 1904	1904
Jun 1900–May 1904 48-Month	46.31" (1,176.27mm)	58.01" (1,473.45mm)	-11.70" (-297.18mm)	124th Wettest	Wettest since: 1903	1986
Jun 1899–May 1904 60-Month	60.06" (1,525.52mm)	72.48" (1,840.99mm)	-12.42" (-315.47mm)	2nd Driest	Driest since: 1904	1957
Jun 1899–May 1904 60-Month	60.06" (1,525.52mm)	72.48" (1,840.99mm)	-12.42" (-315.47mm)	122nd Wettest	Wettest since: 1903	1987

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on February 1, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings