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, April 1987

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
April 1987 1-Month	0.54" (13.72mm)	1.06" (26.92mm)	-0.52" (-13.20mm)	16th Driest	Driest since: 1982	1989
	0.54" (13.72mm)	1.06" (26.92mm)	-0.52" (-13.20mm)	113th Wettest	Wettest since: 1986	1900
	Ties: 1992
Mar–Apr 1987 2-Month	1.61" (40.89mm)	2.21" (56.13mm)	-0.60" (-15.24mm)	35th Driest	Driest since: 1974	1972
Mar–Apr 1987 2-Month	1.61" (40.89mm)	2.21" (56.13mm)	-0.60" (-15.24mm)	94th Wettest	Wettest since: 1986	1905
Feb–Apr 1987 3-Month	3.09" (78.49mm)	3.21" (81.53mm)	-0.12" (-3.04mm)	69th Driest	Driest since: 1984	1972
	3.09" (78.49mm)	3.21" (81.53mm)	-0.12" (-3.04mm)	60th Wettest	Wettest since: 1986	1905
	Ties: 1979
Jan–Apr 1987 4-Month	4.10" (104.14mm)	4.20" (106.68mm)	-0.10" (-2.54mm)	70th Driest	Driest since: 1984	1972
	4.10" (104.14mm)	4.20" (106.68mm)	-0.10" (-2.54mm)	59th Wettest	Wettest since: 1986	1905
	Ties: 1908
Dec 1986–Apr 1987 5-Month	5.15" (130.81mm)	5.21" (132.33mm)	-0.06" (-1.52mm)	76th Driest	Driest since: 1986	2002
Dec 1986–Apr 1987 5-Month	5.15" (130.81mm)	5.21" (132.33mm)	-0.06" (-1.52mm)	52nd Wettest	Wettest since: 1985	1905
Nov 1986–Apr 1987 6-Month	6.77" (171.96mm)	6.10" (154.94mm)	0.67" (17.02mm)	93rd Driest	Driest since: 1986	1904
	6.77" (171.96mm)	6.10" (154.94mm)	0.67" (17.02mm)	35th Wettest	Wettest since: 1985	1941
	Ties: 1968
Oct 1986–Apr 1987 7-Month	8.55" (217.17mm)	7.23" (183.64mm)	1.32" (33.53mm)	103rd Driest	Driest since: 1986	1904
Oct 1986–Apr 1987 7-Month	8.55" (217.17mm)	7.23" (183.64mm)	1.32" (33.53mm)	25th Wettest	Wettest since: 1985	1941
Sep 1986–Apr 1987 8-Month	10.35" (262.89mm)	8.60" (218.44mm)	1.75" (44.45mm)	109th Driest	Driest since: 1984	2002
	10.35" (262.89mm)	8.60" (218.44mm)	1.75" (44.45mm)	19th Wettest	Wettest since: 1986	1941
	Ties: 1992
Aug 1986–Apr 1987 9-Month	12.61" (320.29mm)	10.61" (269.49mm)	2.00" (50.80mm)	108th Driest	Driest since: 1986	2021
Aug 1986–Apr 1987 9-Month	12.61" (320.29mm)	10.61" (269.49mm)	2.00" (50.80mm)	20th Wettest	Wettest since: 1985	1905
Jul 1986–Apr 1987 10-Month	14.72" (373.89mm)	12.48" (316.99mm)	2.24" (56.90mm)	110th Driest	Driest since: 1986	2021
Jul 1986–Apr 1987 10-Month	14.72" (373.89mm)	12.48" (316.99mm)	2.24" (56.90mm)	18th Wettest	Wettest since: 1985	1905
Jun 1986–Apr 1987 11-Month	16.34" (415.04mm)	13.41" (340.61mm)	2.93" (74.43mm)	116th Driest	Driest since: 1986	2021
Jun 1986–Apr 1987 11-Month	16.34" (415.04mm)	13.41" (340.61mm)	2.93" (74.43mm)	12th Wettest	Wettest since: 1985	1905
May 1986–Apr 1987 12-Month	17.45" (443.23mm)	14.53" (369.06mm)	2.92" (74.17mm)	114th Driest	Driest since: 1986	2021
May 1986–Apr 1987 12-Month	17.45" (443.23mm)	14.53" (369.06mm)	2.92" (74.17mm)	14th Wettest	Wettest since: 1985	1942
Nov 1985–Apr 1987 18-Month	23.97" (608.84mm)	20.64" (524.26mm)	3.33" (84.58mm)	110th Driest	Driest since: 1986	2021
Nov 1985–Apr 1987 18-Month	23.97" (608.84mm)	20.64" (524.26mm)	3.33" (84.58mm)	17th Wettest	Wettest since: 1985	1942
May 1985–Apr 1987 24-Month	33.35" (847.09mm)	29.05" (737.87mm)	4.30" (109.22mm)	115th Driest	Driest since: 1982	2022
May 1985–Apr 1987 24-Month	33.35" (847.09mm)	29.05" (737.87mm)	4.30" (109.22mm)	12th Wettest	Wettest since: 1986	1942
May 1984–Apr 1987 36-Month	52.63" (1,336.80mm)	43.55" (1,106.17mm)	9.08" (230.63mm)	123rd Driest	Driest since: 1986	1904
May 1984–Apr 1987 36-Month	52.63" (1,336.80mm)	43.55" (1,106.17mm)	9.08" (230.63mm)	3rd Wettest	Wettest since: 1985	1907
May 1983–Apr 1987 48-Month	68.78" (1,747.01mm)	58.02" (1,473.71mm)	10.76" (273.30mm)	121st Driest	Driest since: 1984	1904
May 1983–Apr 1987 48-Month	68.78" (1,747.01mm)	58.02" (1,473.71mm)	10.76" (273.30mm)	4th Wettest	Wettest since: 1986	1986
May 1982–Apr 1987 60-Month	87.33" (2,218.18mm)	72.49" (1,841.25mm)	14.84" (376.93mm)	123rd Driest	Driest since: 1986	1957
May 1982–Apr 1987 60-Month	87.33" (2,218.18mm)	72.49" (1,841.25mm)	14.84" (376.93mm)	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 5, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings