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 1966

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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 1966 1-Month	0.55" (13.97mm)	1.11" (28.19mm)	-0.56" (-14.22mm)	15th Driest	Driest since: 1963	1974
	0.55" (13.97mm)	1.11" (28.19mm)	-0.56" (-14.22mm)	114th Wettest	Wettest since: 1965	2015
	Ties: 1910
Apr–May 1966 2-Month	1.15" (29.21mm)	2.17" (55.12mm)	-1.02" (-25.91mm)	10th Driest	Driest since: 1950	2002
Apr–May 1966 2-Month	1.15" (29.21mm)	2.17" (55.12mm)	-1.02" (-25.91mm)	119th Wettest	Wettest since: 1965	1941
Mar–May 1966 3-Month	1.46" (37.08mm)	3.33" (84.58mm)	-1.87" (-47.50mm)	3rd Driest	Driest to Date	2002
Mar–May 1966 3-Month	1.46" (37.08mm)	3.33" (84.58mm)	-1.87" (-47.50mm)	126th Wettest	Wettest since: 1965	1941
Feb–May 1966 4-Month	2.31" (58.67mm)	4.33" (109.98mm)	-2.02" (-51.31mm)	5th Driest	Driest to Date	2002
Feb–May 1966 4-Month	2.31" (58.67mm)	4.33" (109.98mm)	-2.02" (-51.31mm)	124th Wettest	Wettest since: 1965	1905
Jan–May 1966 5-Month	2.89" (73.41mm)	5.31" (134.87mm)	-2.42" (-61.46mm)	4th Driest	Driest to Date	1972
Jan–May 1966 5-Month	2.89" (73.41mm)	5.31" (134.87mm)	-2.42" (-61.46mm)	125th Wettest	Wettest since: 1965	1905
Dec 1965–May 1966 6-Month	5.39" (136.91mm)	6.32" (160.53mm)	-0.93" (-23.62mm)	40th Driest	Driest since: 1964	2002
Dec 1965–May 1966 6-Month	5.39" (136.91mm)	6.32" (160.53mm)	-0.93" (-23.62mm)	88th Wettest	Wettest since: 1965	1905
Nov 1965–May 1966 7-Month	6.70" (170.18mm)	7.21" (183.13mm)	-0.51" (-12.95mm)	55th Driest	Driest since: 1964	2002
	6.70" (170.18mm)	7.21" (183.13mm)	-0.51" (-12.95mm)	73rd Wettest	Wettest since: 1965	1941
	Ties: 1908
Oct 1965–May 1966 8-Month	7.36" (186.94mm)	8.34" (211.84mm)	-0.98" (-24.90mm)	43rd Driest	Driest since: 1964	2002
Oct 1965–May 1966 8-Month	7.36" (186.94mm)	8.34" (211.84mm)	-0.98" (-24.90mm)	85th Wettest	Wettest since: 1965	1941
Sep 1965–May 1966 9-Month	9.29" (235.97mm)	9.71" (246.63mm)	-0.42" (-10.66mm)	60th Driest	Driest since: 1964	2002
Sep 1965–May 1966 9-Month	9.29" (235.97mm)	9.71" (246.63mm)	-0.42" (-10.66mm)	68th Wettest	Wettest since: 1965	1941
Aug 1965–May 1966 10-Month	11.24" (285.50mm)	11.72" (297.69mm)	-0.48" (-12.19mm)	61st Driest	Driest since: 1964	2002
Aug 1965–May 1966 10-Month	11.24" (285.50mm)	11.72" (297.69mm)	-0.48" (-12.19mm)	67th Wettest	Wettest since: 1965	1941
Jul 1965–May 1966 11-Month	13.67" (347.22mm)	13.59" (345.19mm)	0.08" (2.03mm)	73rd Driest	Driest since: 1965	2021
Jul 1965–May 1966 11-Month	13.67" (347.22mm)	13.59" (345.19mm)	0.08" (2.03mm)	55th Wettest	Wettest since: 1962	1941
Jun 1965–May 1966 12-Month	15.48" (393.19mm)	14.53" (369.06mm)	0.95" (24.13mm)	83rd Driest	Driest since: 1965	2021
Jun 1965–May 1966 12-Month	15.48" (393.19mm)	14.53" (369.06mm)	0.95" (24.13mm)	45th Wettest	Wettest since: 1958	1905
Dec 1964–May 1966 18-Month	22.62" (574.55mm)	20.86" (529.84mm)	1.76" (44.71mm)	98th Driest	Driest since: 1965	2021
Dec 1964–May 1966 18-Month	22.62" (574.55mm)	20.86" (529.84mm)	1.76" (44.71mm)	29th Wettest	Wettest since: 1958	1942
Jun 1964–May 1966 24-Month	29.42" (747.27mm)	29.05" (737.87mm)	0.37" (9.40mm)	76th Driest	Driest since: 1965	2021
Jun 1964–May 1966 24-Month	29.42" (747.27mm)	29.05" (737.87mm)	0.37" (9.40mm)	51st Wettest	Wettest since: 1958	1942
Jun 1963–May 1966 36-Month	42.50" (1,079.50mm)	43.54" (1,105.92mm)	-1.04" (-26.42mm)	58th Driest	Driest since: 1965	2022
Jun 1963–May 1966 36-Month	42.50" (1,079.50mm)	43.54" (1,105.92mm)	-1.04" (-26.42mm)	68th Wettest	Wettest since: 1960	1907
Jun 1962–May 1966 48-Month	53.82" (1,367.03mm)	58.01" (1,473.45mm)	-4.19" (-106.42mm)	30th Driest	Driest since: 1965	1904
Jun 1962–May 1966 48-Month	53.82" (1,367.03mm)	58.01" (1,473.45mm)	-4.19" (-106.42mm)	95th Wettest	Wettest since: 1962	1986
Jun 1961–May 1966 60-Month	68.91" (1,750.31mm)	72.48" (1,840.99mm)	-3.57" (-90.68mm)	41st Driest	Driest since: 1965	1957
Jun 1961–May 1966 60-Month	68.91" (1,750.31mm)	72.48" (1,840.99mm)	-3.57" (-90.68mm)	83rd Wettest	Wettest since: 1962	1987

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published May 2023, retrieved on May 28, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings