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 1987

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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 1987 1-Month	2.49" (63.25mm)	2.02" (51.31mm)	0.47" (11.94mm)	102nd Driest	Driest since: 1986	1962
August 1987 1-Month	2.49" (63.25mm)	2.02" (51.31mm)	0.47" (11.94mm)	27th Wettest	Wettest since: 1984	1963
Jul–Aug 1987 2-Month	3.85" (97.79mm)	3.89" (98.81mm)	-0.04" (-1.02mm)	64th Driest	Driest since: 1985	2020
Jul–Aug 1987 2-Month	3.85" (97.79mm)	3.89" (98.81mm)	-0.04" (-1.02mm)	65th Wettest	Wettest since: 1986	1921
Jun–Aug 1987 3-Month	4.93" (125.22mm)	4.83" (122.68mm)	0.10" (2.54mm)	70th Driest	Driest since: 1985	2020
Jun–Aug 1987 3-Month	4.93" (125.22mm)	4.83" (122.68mm)	0.10" (2.54mm)	59th Wettest	Wettest since: 1986	1921
May–Aug 1987 4-Month	6.76" (171.70mm)	5.94" (150.88mm)	0.82" (20.82mm)	104th Driest	Driest since: 1985	2020
May–Aug 1987 4-Month	6.76" (171.70mm)	5.94" (150.88mm)	0.82" (20.82mm)	25th Wettest	Wettest since: 1986	1921
Apr–Aug 1987 5-Month	7.30" (185.42mm)	7.00" (177.80mm)	0.30" (7.62mm)	87th Driest	Driest since: 1985	2020
Apr–Aug 1987 5-Month	7.30" (185.42mm)	7.00" (177.80mm)	0.30" (7.62mm)	42nd Wettest	Wettest since: 1986	1999
Mar–Aug 1987 6-Month	8.37" (212.60mm)	8.15" (207.01mm)	0.22" (5.59mm)	81st Driest	Driest since: 1980	2002
Mar–Aug 1987 6-Month	8.37" (212.60mm)	8.15" (207.01mm)	0.22" (5.59mm)	48th Wettest	Wettest since: 1986	1941
Feb–Aug 1987 7-Month	9.85" (250.19mm)	9.16" (232.66mm)	0.69" (17.53mm)	95th Driest	Driest since: 1985	2002
Feb–Aug 1987 7-Month	9.85" (250.19mm)	9.16" (232.66mm)	0.69" (17.53mm)	34th Wettest	Wettest since: 1986	1941
Jan–Aug 1987 8-Month	10.86" (275.84mm)	10.14" (257.56mm)	0.72" (18.28mm)	89th Driest	Driest since: 1985	2002
	10.86" (275.84mm)	10.14" (257.56mm)	0.72" (18.28mm)	40th Wettest	Wettest since: 1986	1941
	Ties: 1919
Dec 1986–Aug 1987 9-Month	11.91" (302.51mm)	11.15" (283.21mm)	0.76" (19.30mm)	87th Driest	Driest since: 1986	2002
Dec 1986–Aug 1987 9-Month	11.91" (302.51mm)	11.15" (283.21mm)	0.76" (19.30mm)	41st Wettest	Wettest since: 1985	1941
Nov 1986–Aug 1987 10-Month	13.53" (343.66mm)	12.04" (305.82mm)	1.49" (37.84mm)	101st Driest	Driest since: 1985	2002
Nov 1986–Aug 1987 10-Month	13.53" (343.66mm)	12.04" (305.82mm)	1.49" (37.84mm)	27th Wettest	Wettest since: 1986	1941
Oct 1986–Aug 1987 11-Month	15.31" (388.87mm)	13.17" (334.52mm)	2.14" (54.35mm)	109th Driest	Driest since: 1982	2002
Oct 1986–Aug 1987 11-Month	15.31" (388.87mm)	13.17" (334.52mm)	2.14" (54.35mm)	19th Wettest	Wettest since: 1986	1941
Sep 1986–Aug 1987 12-Month	17.11" (434.59mm)	14.54" (369.32mm)	2.57" (65.27mm)	109th Driest	Driest since: 1985	2002
Sep 1986–Aug 1987 12-Month	17.11" (434.59mm)	14.54" (369.32mm)	2.57" (65.27mm)	19th Wettest	Wettest since: 1986	1941
Mar 1986–Aug 1987 18-Month	26.66" (677.16mm)	22.69" (576.33mm)	3.97" (100.83mm)	116th Driest	Driest since: 1986	2002
Mar 1986–Aug 1987 18-Month	26.66" (677.16mm)	22.69" (576.33mm)	3.97" (100.83mm)	12th Wettest	Wettest since: 1985	1942
Sep 1985–Aug 1987 24-Month	34.86" (885.44mm)	29.09" (738.89mm)	5.77" (146.55mm)	119th Driest	Driest since: 1986	2003
Sep 1985–Aug 1987 24-Month	34.86" (885.44mm)	29.09" (738.89mm)	5.77" (146.55mm)	8th Wettest	Wettest since: 1984	1942
Sep 1984–Aug 1987 36-Month	51.64" (1,311.66mm)	43.58" (1,106.93mm)	8.06" (204.73mm)	120th Driest	Driest since: 1984	1956
Sep 1984–Aug 1987 36-Month	51.64" (1,311.66mm)	43.58" (1,106.93mm)	8.06" (204.73mm)	6th Wettest	Wettest since: 1986	1907
Sep 1983–Aug 1987 48-Month	69.42" (1,763.27mm)	58.05" (1,474.47mm)	11.37" (288.80mm)	123rd Driest	Driest since: 1985	1956
Sep 1983–Aug 1987 48-Month	69.42" (1,763.27mm)	58.05" (1,474.47mm)	11.37" (288.80mm)	2nd Wettest	Wettest since: 1986	1986
Sep 1982–Aug 1987 60-Month	87.48" (2,221.99mm)	72.53" (1,842.26mm)	14.95" (379.73mm)	123rd Driest	Driest since: 1986	2004
Sep 1982–Aug 1987 60-Month	87.48" (2,221.99mm)	72.53" (1,842.26mm)	14.95" (379.73mm)	1st Wettest	Wettest to Date	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