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 1915

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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
August 1915 1-Month	1.55" (39.37mm)	2.02" (51.31mm)	-0.47" (-11.94mm)	31st Driest	Driest since: 1913	1962
August 1915 1-Month	1.55" (39.37mm)	2.02" (51.31mm)	-0.47" (-11.94mm)	98th Wettest	Wettest since: 1914	1963
Jul–Aug 1915 2-Month	3.81" (96.77mm)	3.89" (98.81mm)	-0.08" (-2.04mm)	63rd Driest	Driest since: 1913	2020
Jul–Aug 1915 2-Month	3.81" (96.77mm)	3.89" (98.81mm)	-0.08" (-2.04mm)	66th Wettest	Wettest since: 1914	1921
Jun–Aug 1915 3-Month	4.64" (117.86mm)	4.83" (122.68mm)	-0.19" (-4.82mm)	58th Driest	Driest since: 1913	2020
Jun–Aug 1915 3-Month	4.64" (117.86mm)	4.83" (122.68mm)	-0.19" (-4.82mm)	71st Wettest	Wettest since: 1914	1921
May–Aug 1915 4-Month	6.12" (155.45mm)	5.94" (150.88mm)	0.18" (4.57mm)	77th Driest	Driest since: 1913	2020
	6.12" (155.45mm)	5.94" (150.88mm)	0.18" (4.57mm)	52nd Wettest	Wettest since: 1914	1921
	Ties: 1983
Apr–Aug 1915 5-Month	8.65" (219.71mm)	7.00" (177.80mm)	1.65" (41.91mm)	120th Driest	Driest since: 1913	2020
Apr–Aug 1915 5-Month	8.65" (219.71mm)	7.00" (177.80mm)	1.65" (41.91mm)	9th Wettest	Wettest since: 1914	1999
Mar–Aug 1915 6-Month	9.57" (243.08mm)	8.15" (207.01mm)	1.42" (36.07mm)	114th Driest	Driest since: 1913	2002
Mar–Aug 1915 6-Month	9.57" (243.08mm)	8.15" (207.01mm)	1.42" (36.07mm)	15th Wettest	Wettest since: 1914	1941
Feb–Aug 1915 7-Month	11.16" (283.46mm)	9.16" (232.66mm)	2.00" (50.80mm)	119th Driest	Driest since: 1913	2002
Feb–Aug 1915 7-Month	11.16" (283.46mm)	9.16" (232.66mm)	2.00" (50.80mm)	10th Wettest	Wettest since: 1914	1941
Jan–Aug 1915 8-Month	12.58" (319.53mm)	10.14" (257.56mm)	2.44" (61.97mm)	122nd Driest	Driest since: 1913	2002
Jan–Aug 1915 8-Month	12.58" (319.53mm)	10.14" (257.56mm)	2.44" (61.97mm)	7th Wettest	Wettest since: 1914	1941
Dec 1914–Aug 1915 9-Month	14.32" (363.73mm)	11.15" (283.21mm)	3.17" (80.52mm)	124th Driest	Driest since: 1914	2002
Dec 1914–Aug 1915 9-Month	14.32" (363.73mm)	11.15" (283.21mm)	3.17" (80.52mm)	4th Wettest	Wettest since: 1905	1941
Nov 1914–Aug 1915 10-Month	14.66" (372.36mm)	12.04" (305.82mm)	2.62" (66.54mm)	117th Driest	Driest since: 1913	2002
Nov 1914–Aug 1915 10-Month	14.66" (372.36mm)	12.04" (305.82mm)	2.62" (66.54mm)	11th Wettest	Wettest since: 1914	1941
Oct 1914–Aug 1915 11-Month	16.84" (427.74mm)	13.17" (334.52mm)	3.67" (93.22mm)	123rd Driest	Driest since: 1914	2002
Oct 1914–Aug 1915 11-Month	16.84" (427.74mm)	13.17" (334.52mm)	3.67" (93.22mm)	5th Wettest	Wettest to Date	1941
Sep 1914–Aug 1915 12-Month	17.55" (445.77mm)	14.54" (369.32mm)	3.01" (76.45mm)	115th Driest	Driest since: 1913	2002
	17.55" (445.77mm)	14.54" (369.32mm)	3.01" (76.45mm)	13th Wettest	Wettest since: 1914	1941
	Ties: 2015
Mar 1914–Aug 1915 18-Month	28.01" (711.45mm)	22.69" (576.33mm)	5.32" (135.12mm)	123rd Driest	Driest since: 1914	2002
Mar 1914–Aug 1915 18-Month	28.01" (711.45mm)	22.69" (576.33mm)	5.32" (135.12mm)	5th Wettest	Wettest since: 1907	1942
Sep 1913–Aug 1915 24-Month	35.57" (903.48mm)	29.09" (738.89mm)	6.48" (164.59mm)	122nd Driest	Driest since: 1914	2003
Sep 1913–Aug 1915 24-Month	35.57" (903.48mm)	29.09" (738.89mm)	6.48" (164.59mm)	5th Wettest	Wettest since: 1907	1942
Sep 1912–Aug 1915 36-Month	47.97" (1,218.44mm)	43.58" (1,106.93mm)	4.39" (111.51mm)	108th Driest	Driest since: 1914	1956
Sep 1912–Aug 1915 36-Month	47.97" (1,218.44mm)	43.58" (1,106.93mm)	4.39" (111.51mm)	18th Wettest	Wettest since: 1909	1907
Sep 1911–Aug 1915 48-Month	64.25" (1,631.95mm)	58.05" (1,474.47mm)	6.20" (157.48mm)	111th Driest	Driest since: 1914	1956
Sep 1911–Aug 1915 48-Month	64.25" (1,631.95mm)	58.05" (1,474.47mm)	6.20" (157.48mm)	14th Wettest	Wettest since: 1909	1986
Sep 1910–Aug 1915 60-Month	79.50" (2,019.30mm)	72.53" (1,842.26mm)	6.97" (177.04mm)	109th Driest	Driest since: 1914	2004
Sep 1910–Aug 1915 60-Month	79.50" (2,019.30mm)	72.53" (1,842.26mm)	6.97" (177.04mm)	15th Wettest	Wettest since: 1909	1987

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on February 6, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings