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, August 1955

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
August 1955 1-Month	2.68" (68.07mm)	2.02" (51.31mm)	0.66" (16.76mm)	116th Driest	Driest since: 1954	1962
	2.68" (68.07mm)	2.02" (51.31mm)	0.66" (16.76mm)	13th Wettest	Wettest since: 1951	1963
	Ties: 1947
Jul–Aug 1955 2-Month	4.88" (123.95mm)	3.89" (98.81mm)	0.99" (25.14mm)	116th Driest	Driest since: 1954	2020
Jul–Aug 1955 2-Month	4.88" (123.95mm)	3.89" (98.81mm)	0.99" (25.14mm)	13th Wettest	Wettest since: 1930	1921
Jun–Aug 1955 3-Month	5.60" (142.24mm)	4.83" (122.68mm)	0.77" (19.56mm)	106th Driest	Driest since: 1954	2020
	5.60" (142.24mm)	4.83" (122.68mm)	0.77" (19.56mm)	23rd Wettest	Wettest since: 1941	1921
	Ties: 2015
May–Aug 1955 4-Month	6.86" (174.24mm)	5.94" (150.88mm)	0.92" (23.36mm)	109th Driest	Driest since: 1954	2020
May–Aug 1955 4-Month	6.86" (174.24mm)	5.94" (150.88mm)	0.92" (23.36mm)	20th Wettest	Wettest since: 1941	1921
Apr–Aug 1955 5-Month	7.37" (187.20mm)	7.00" (177.80mm)	0.37" (9.40mm)	90th Driest	Driest since: 1954	2020
Apr–Aug 1955 5-Month	7.37" (187.20mm)	7.00" (177.80mm)	0.37" (9.40mm)	39th Wettest	Wettest since: 1949	1999
Mar–Aug 1955 6-Month	7.70" (195.58mm)	8.15" (207.01mm)	-0.45" (-11.43mm)	49th Driest	Driest since: 1954	2002
	7.70" (195.58mm)	8.15" (207.01mm)	-0.45" (-11.43mm)	80th Wettest	Wettest since: 1952	1941
	Ties: 1975, 2016
Feb–Aug 1955 7-Month	8.55" (217.17mm)	9.16" (232.66mm)	-0.61" (-15.49mm)	46th Driest	Driest since: 1954	2002
	8.55" (217.17mm)	9.16" (232.66mm)	-0.61" (-15.49mm)	83rd Wettest	Wettest since: 1952	1941
	Ties: 1947, 2007
Jan–Aug 1955 8-Month	9.72" (246.89mm)	10.14" (257.56mm)	-0.42" (-10.67mm)	61st Driest	Driest since: 1954	2002
	9.72" (246.89mm)	10.14" (257.56mm)	-0.42" (-10.67mm)	68th Wettest	Wettest since: 1952	1941
	Ties: 1917
Dec 1954–Aug 1955 9-Month	10.24" (260.10mm)	11.15" (283.21mm)	-0.91" (-23.11mm)	47th Driest	Driest since: 1954	2002
Dec 1954–Aug 1955 9-Month	10.24" (260.10mm)	11.15" (283.21mm)	-0.91" (-23.11mm)	81st Wettest	Wettest since: 1952	1941
Nov 1954–Aug 1955 10-Month	10.71" (272.03mm)	12.04" (305.82mm)	-1.33" (-33.79mm)	42nd Driest	Driest since: 1954	2002
	10.71" (272.03mm)	12.04" (305.82mm)	-1.33" (-33.79mm)	86th Wettest	Wettest since: 1953	1941
	Ties: 1961
Oct 1954–Aug 1955 11-Month	11.79" (299.47mm)	13.17" (334.52mm)	-1.38" (-35.05mm)	45th Driest	Driest since: 1954	2002
Oct 1954–Aug 1955 11-Month	11.79" (299.47mm)	13.17" (334.52mm)	-1.38" (-35.05mm)	83rd Wettest	Wettest since: 1952	1941
Sep 1954–Aug 1955 12-Month	13.29" (337.57mm)	14.54" (369.32mm)	-1.25" (-31.75mm)	45th Driest	Driest since: 1954	2002
Sep 1954–Aug 1955 12-Month	13.29" (337.57mm)	14.54" (369.32mm)	-1.25" (-31.75mm)	83rd Wettest	Wettest since: 1952	1941
Mar 1954–Aug 1955 18-Month	20.59" (522.99mm)	22.69" (576.33mm)	-2.10" (-53.34mm)	41st Driest	Driest since: 1954	2002
Mar 1954–Aug 1955 18-Month	20.59" (522.99mm)	22.69" (576.33mm)	-2.10" (-53.34mm)	87th Wettest	Wettest since: 1952	1942
Sep 1953–Aug 1955 24-Month	24.15" (613.41mm)	29.09" (738.89mm)	-4.94" (-125.48mm)	13th Driest	Driest since: 1954	2003
Sep 1953–Aug 1955 24-Month	24.15" (613.41mm)	29.09" (738.89mm)	-4.94" (-125.48mm)	114th Wettest	Wettest since: 1953	1942
Sep 1952–Aug 1955 36-Month	36.01" (914.65mm)	43.58" (1,106.93mm)	-7.57" (-192.28mm)	8th Driest	Driest since: 1904	1956
Sep 1952–Aug 1955 36-Month	36.01" (914.65mm)	43.58" (1,106.93mm)	-7.57" (-192.28mm)	118th Wettest	Wettest since: 1954	1907
Sep 1951–Aug 1955 48-Month	51.08" (1,297.43mm)	58.05" (1,474.47mm)	-6.97" (-177.04mm)	14th Driest	Driest since: 1954	1956
Sep 1951–Aug 1955 48-Month	51.08" (1,297.43mm)	58.05" (1,474.47mm)	-6.97" (-177.04mm)	111th Wettest	Wettest since: 1952	1986
Sep 1950–Aug 1955 60-Month	63.42" (1,610.87mm)	72.53" (1,842.26mm)	-9.11" (-231.39mm)	9th Driest	Driest since: 1954	2004
Sep 1950–Aug 1955 60-Month	63.42" (1,610.87mm)	72.53" (1,842.26mm)	-9.11" (-231.39mm)	115th Wettest	Wettest since: 1953	1987

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on February 5, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings