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, September 1958

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
September 1958 1-Month	2.15" (54.61mm)	1.36" (34.54mm)	0.79" (20.07mm)	116th Driest	Driest since: 1957	1953, 1956
	2.15" (54.61mm)	1.36" (34.54mm)	0.79" (20.07mm)	13th Wettest	Wettest since: 1941	2013
	Ties: 1985
Aug–Sep 1958 2-Month	4.00" (101.60mm)	3.38" (85.85mm)	0.62" (15.75mm)	103rd Driest	Driest since: 1957	2020
Aug–Sep 1958 2-Month	4.00" (101.60mm)	3.38" (85.85mm)	0.62" (15.75mm)	26th Wettest	Wettest since: 1941	2013
Jul–Sep 1958 3-Month	5.45" (138.43mm)	5.25" (133.35mm)	0.20" (5.08mm)	78th Driest	Driest since: 1957	2020
	5.45" (138.43mm)	5.25" (133.35mm)	0.20" (5.08mm)	51st Wettest	Wettest since: 1955	2013
	Ties: 1966
Jun–Sep 1958 4-Month	6.20" (157.48mm)	6.19" (157.23mm)	0.01" (0.25mm)	73rd Driest	Driest since: 1957	2020
	6.20" (157.48mm)	6.19" (157.23mm)	0.01" (0.25mm)	56th Wettest	Wettest since: 1955	1927
	Ties: 1977
May–Sep 1958 5-Month	7.24" (183.90mm)	7.30" (185.42mm)	-0.06" (-1.52mm)	68th Driest	Driest since: 1956	2020
	7.24" (183.90mm)	7.30" (185.42mm)	-0.06" (-1.52mm)	61st Wettest	Wettest since: 1957	1941
	Ties: 1933
Apr–Sep 1958 6-Month	8.46" (214.88mm)	8.36" (212.34mm)	0.10" (2.54mm)	75th Driest	Driest since: 1956	2020
	8.46" (214.88mm)	8.36" (212.34mm)	0.10" (2.54mm)	54th Wettest	Wettest since: 1957	1941
	Ties: 1977
Mar–Sep 1958 7-Month	10.59" (268.99mm)	9.51" (241.55mm)	1.08" (27.44mm)	100th Driest	Driest since: 1956	1956
Mar–Sep 1958 7-Month	10.59" (268.99mm)	9.51" (241.55mm)	1.08" (27.44mm)	29th Wettest	Wettest since: 1957	1941
Feb–Sep 1958 8-Month	11.90" (302.26mm)	10.52" (267.21mm)	1.38" (35.05mm)	107th Driest	Driest since: 1956	1956
Feb–Sep 1958 8-Month	11.90" (302.26mm)	10.52" (267.21mm)	1.38" (35.05mm)	22nd Wettest	Wettest since: 1957	1941
Jan–Sep 1958 9-Month	12.53" (318.26mm)	11.50" (292.10mm)	1.03" (26.16mm)	95th Driest	Driest since: 1956	1956
	12.53" (318.26mm)	11.50" (292.10mm)	1.03" (26.16mm)	34th Wettest	Wettest since: 1957	1941
	Ties: 1938
Dec 1957–Sep 1958 10-Month	13.05" (331.47mm)	12.51" (317.75mm)	0.54" (13.72mm)	83rd Driest	Driest since: 1956	1956
	13.05" (331.47mm)	12.51" (317.75mm)	0.54" (13.72mm)	45th Wettest	Wettest since: 1957	1941
	Ties: 2013
Nov 1957–Sep 1958 11-Month	14.50" (368.30mm)	13.40" (340.36mm)	1.10" (27.94mm)	90th Driest	Driest since: 1956	1956
Nov 1957–Sep 1958 11-Month	14.50" (368.30mm)	13.40" (340.36mm)	1.10" (27.94mm)	38th Wettest	Wettest since: 1957	1941
Oct 1957–Sep 1958 12-Month	16.96" (430.78mm)	14.53" (369.06mm)	2.43" (61.72mm)	108th Driest	Driest since: 1957	1956
	16.96" (430.78mm)	14.53" (369.06mm)	2.43" (61.72mm)	20th Wettest	Wettest since: 1941	1941
	Ties: 1897
Apr 1957–Sep 1958 18-Month	27.06" (687.32mm)	22.92" (582.17mm)	4.14" (105.15mm)	121st Driest	Driest since: 1957	2021
Apr 1957–Sep 1958 18-Month	27.06" (687.32mm)	22.92" (582.17mm)	4.14" (105.15mm)	7th Wettest	Wettest since: 1942	1941
Oct 1956–Sep 1958 24-Month	32.40" (822.96mm)	29.08" (738.63mm)	3.32" (84.33mm)	109th Driest	Driest since: 1957	1956
Oct 1956–Sep 1958 24-Month	32.40" (822.96mm)	29.08" (738.63mm)	3.32" (84.33mm)	18th Wettest	Wettest since: 1942	1942
Oct 1955–Sep 1958 36-Month	41.29" (1,048.77mm)	43.57" (1,106.68mm)	-2.28" (-57.91mm)	44th Driest	Driest since: 1957	1956
	41.29" (1,048.77mm)	43.57" (1,106.68mm)	-2.28" (-57.91mm)	82nd Wettest	Wettest since: 1949	1907
	Ties: 1965
Oct 1954–Sep 1958 48-Month	53.71" (1,364.23mm)	58.05" (1,474.47mm)	-4.34" (-110.24mm)	28th Driest	Driest since: 1957	1956
Oct 1954–Sep 1958 48-Month	53.71" (1,364.23mm)	58.05" (1,474.47mm)	-4.34" (-110.24mm)	97th Wettest	Wettest since: 1952	1986
Oct 1953–Sep 1958 60-Month	65.98" (1,675.89mm)	72.53" (1,842.26mm)	-6.55" (-166.37mm)	17th Driest	Driest since: 1957	1957
Oct 1953–Sep 1958 60-Month	65.98" (1,675.89mm)	72.53" (1,842.26mm)	-6.55" (-166.37mm)	107th Wettest	Wettest since: 1952	1986

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published November 2022, retrieved on November 29, 2022 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings