Regional Rankings

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Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. 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, May 1971

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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
May 1971 1-Month	1.01" (25.65mm)	1.11" (28.19mm)	-0.10" (-2.54mm)	55th Driest	Driest since: 1970	1974
May 1971 1-Month	1.01" (25.65mm)	1.11" (28.19mm)	-0.10" (-2.54mm)	74th Wettest	Wettest since: 1969	2015
Apr–May 1971 2-Month	2.00" (50.80mm)	2.17" (55.12mm)	-0.17" (-4.32mm)	59th Driest	Driest since: 1970	2002
Apr–May 1971 2-Month	2.00" (50.80mm)	2.17" (55.12mm)	-0.17" (-4.32mm)	70th Wettest	Wettest since: 1969	1941
Mar–May 1971 3-Month	2.33" (59.18mm)	3.33" (84.58mm)	-1.00" (-25.40mm)	23rd Driest	Driest since: 1966	2002
	2.33" (59.18mm)	3.33" (84.58mm)	-1.00" (-25.40mm)	106th Wettest	Wettest since: 1970	1941
	Ties: 1936
Feb–May 1971 4-Month	3.15" (80.01mm)	4.33" (109.98mm)	-1.18" (-29.97mm)	23rd Driest	Driest since: 1967	2002
Feb–May 1971 4-Month	3.15" (80.01mm)	4.33" (109.98mm)	-1.18" (-29.97mm)	106th Wettest	Wettest since: 1970	1905
Jan–May 1971 5-Month	3.62" (91.95mm)	5.31" (134.87mm)	-1.69" (-42.92mm)	17th Driest	Driest since: 1967	1972
	3.62" (91.95mm)	5.31" (134.87mm)	-1.69" (-42.92mm)	112th Wettest	Wettest since: 1970	1905
	Ties: 1974
Dec 1970–May 1971 6-Month	4.28" (108.71mm)	6.32" (160.53mm)	-2.04" (-51.82mm)	11th Driest	Driest since: 1950	2002
	4.28" (108.71mm)	6.32" (160.53mm)	-2.04" (-51.82mm)	117th Wettest	Wettest since: 1970	1905
	Ties: 1934, 1974
Nov 1970–May 1971 7-Month	5.09" (129.29mm)	7.21" (183.13mm)	-2.12" (-53.84mm)	14th Driest	Driest since: 1956	2002
Nov 1970–May 1971 7-Month	5.09" (129.29mm)	7.21" (183.13mm)	-2.12" (-53.84mm)	114th Wettest	Wettest since: 1970	1941
Oct 1970–May 1971 8-Month	6.15" (156.21mm)	8.34" (211.84mm)	-2.19" (-55.63mm)	23rd Driest	Driest since: 1963	2002
	6.15" (156.21mm)	8.34" (211.84mm)	-2.19" (-55.63mm)	105th Wettest	Wettest since: 1970	1941
	Ties: 1963
Sep 1970–May 1971 9-Month	7.88" (200.15mm)	9.71" (246.63mm)	-1.83" (-46.48mm)	32nd Driest	Driest since: 1967	2002
Sep 1970–May 1971 9-Month	7.88" (200.15mm)	9.71" (246.63mm)	-1.83" (-46.48mm)	96th Wettest	Wettest since: 1970	1941
Aug 1970–May 1971 10-Month	9.65" (245.11mm)	11.72" (297.69mm)	-2.07" (-52.58mm)	28th Driest	Driest since: 1963	2002
Aug 1970–May 1971 10-Month	9.65" (245.11mm)	11.72" (297.69mm)	-2.07" (-52.58mm)	100th Wettest	Wettest since: 1970	1941
Jul 1970–May 1971 11-Month	11.55" (293.37mm)	13.59" (345.19mm)	-2.04" (-51.82mm)	29th Driest	Driest since: 1963	2021
Jul 1970–May 1971 11-Month	11.55" (293.37mm)	13.59" (345.19mm)	-2.04" (-51.82mm)	99th Wettest	Wettest since: 1970	1941
Jun 1970–May 1971 12-Month	12.63" (320.80mm)	14.53" (369.06mm)	-1.90" (-48.26mm)	37th Driest	Driest since: 1963	2021
Jun 1970–May 1971 12-Month	12.63" (320.80mm)	14.53" (369.06mm)	-1.90" (-48.26mm)	91st Wettest	Wettest since: 1970	1905
Dec 1969–May 1971 18-Month	17.25" (438.15mm)	20.86" (529.84mm)	-3.61" (-91.69mm)	19th Driest	Driest since: 1963	2021
Dec 1969–May 1971 18-Month	17.25" (438.15mm)	20.86" (529.84mm)	-3.61" (-91.69mm)	108th Wettest	Wettest since: 1970	1942
Jun 1969–May 1971 24-Month	27.37" (695.20mm)	29.05" (737.87mm)	-1.68" (-42.67mm)	47th Driest	Driest since: 1965	2021
Jun 1969–May 1971 24-Month	27.37" (695.20mm)	29.05" (737.87mm)	-1.68" (-42.67mm)	80th Wettest	Wettest since: 1970	1942
Jun 1968–May 1971 36-Month	41.24" (1,047.50mm)	43.54" (1,105.92mm)	-2.30" (-58.42mm)	44th Driest	Driest since: 1965	2022
Jun 1968–May 1971 36-Month	41.24" (1,047.50mm)	43.54" (1,105.92mm)	-2.30" (-58.42mm)	82nd Wettest	Wettest since: 1970	1907
Jun 1967–May 1971 48-Month	57.35" (1,456.69mm)	58.01" (1,473.45mm)	-0.66" (-16.76mm)	59th Driest	Driest since: 1967	1904
	57.35" (1,456.69mm)	58.01" (1,473.45mm)	-0.66" (-16.76mm)	66th Wettest	Wettest since: 1970	1986
	Ties: 1976
Jun 1966–May 1971 60-Month	70.08" (1,780.03mm)	72.48" (1,840.99mm)	-2.40" (-60.96mm)	52nd Driest	Driest since: 1967	1957
Jun 1966–May 1971 60-Month	70.08" (1,780.03mm)	72.48" (1,840.99mm)	-2.40" (-60.96mm)	72nd Wettest	Wettest since: 1970	1987

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published March 2023, retrieved on March 26, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings