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.

West Climate Region

Precipitation Rankings, May 1950

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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 1950 1-Month	0.59" (14.99mm)	0.92" (23.37mm)	-0.33" (-8.38mm)	42nd Driest	Driest since: 1943	1924
	0.59" (14.99mm)	0.92" (23.37mm)	-0.33" (-8.38mm)	87th Wettest	Wettest since: 1949	1998
	Ties: 1914
Apr–May 1950 2-Month	1.61" (40.89mm)	2.26" (57.40mm)	-0.65" (-16.51mm)	40th Driest	Driest since: 1947	1909
	1.61" (40.89mm)	2.26" (57.40mm)	-0.65" (-16.51mm)	89th Wettest	Wettest since: 1949	1896
	Ties: 2022
Mar–May 1950 3-Month	3.69" (93.73mm)	4.59" (116.59mm)	-0.90" (-22.86mm)	48th Driest	Driest since: 1947	2008
Mar–May 1950 3-Month	3.69" (93.73mm)	4.59" (116.59mm)	-0.90" (-22.86mm)	81st Wettest	Wettest since: 1949	1995
Feb–May 1950 4-Month	5.44" (138.18mm)	7.31" (185.67mm)	-1.87" (-47.49mm)	40th Driest	Driest since: 1947	1997
Feb–May 1950 4-Month	5.44" (138.18mm)	7.31" (185.67mm)	-1.87" (-47.49mm)	89th Wettest	Wettest since: 1949	1998
Jan–May 1950 5-Month	9.10" (231.14mm)	10.29" (261.37mm)	-1.19" (-30.23mm)	55th Driest	Driest since: 1949	2022
Jan–May 1950 5-Month	9.10" (231.14mm)	10.29" (261.37mm)	-1.19" (-30.23mm)	74th Wettest	Wettest since: 1948	1998
Dec 1949–May 1950 6-Month	10.44" (265.18mm)	12.84" (326.14mm)	-2.40" (-60.96mm)	43rd Driest	Driest since: 1948	1924
Dec 1949–May 1950 6-Month	10.44" (265.18mm)	12.84" (326.14mm)	-2.40" (-60.96mm)	85th Wettest	Wettest since: 1949	1995
Nov 1949–May 1950 7-Month	11.68" (296.67mm)	14.71" (373.63mm)	-3.03" (-76.96mm)	36th Driest	Driest since: 1948	1977
	11.68" (296.67mm)	14.71" (373.63mm)	-3.03" (-76.96mm)	92nd Wettest	Wettest since: 1949	1995
	Ties: 1961
Oct 1949–May 1950 8-Month	12.06" (306.32mm)	15.74" (399.80mm)	-3.68" (-93.48mm)	32nd Driest	Driest since: 1939	1977
Oct 1949–May 1950 8-Month	12.06" (306.32mm)	15.74" (399.80mm)	-3.68" (-93.48mm)	96th Wettest	Wettest since: 1949	1983
Sep 1949–May 1950 9-Month	12.25" (311.15mm)	16.23" (412.24mm)	-3.98" (-101.09mm)	26th Driest	Driest since: 1939	2021
Sep 1949–May 1950 9-Month	12.25" (311.15mm)	16.23" (412.24mm)	-3.98" (-101.09mm)	102nd Wettest	Wettest since: 1949	1983
Aug 1949–May 1950 10-Month	12.47" (316.74mm)	16.62" (422.15mm)	-4.15" (-105.41mm)	24th Driest	Driest since: 1939	2021
	12.47" (316.74mm)	16.62" (422.15mm)	-4.15" (-105.41mm)	104th Wettest	Wettest since: 1949	1983
	Ties: 1939
Jul 1949–May 1950 11-Month	12.64" (321.06mm)	16.95" (430.53mm)	-4.31" (-109.47mm)	21st Driest	Driest since: 1934	2021
Jul 1949–May 1950 11-Month	12.64" (321.06mm)	16.95" (430.53mm)	-4.31" (-109.47mm)	107th Wettest	Wettest since: 1949	1983
Jun 1949–May 1950 12-Month	12.91" (327.91mm)	17.44" (442.98mm)	-4.53" (-115.07mm)	20th Driest	Driest since: 1934	2021
	12.91" (327.91mm)	17.44" (442.98mm)	-4.53" (-115.07mm)	108th Wettest	Wettest since: 1949	1983
	Ties: 2009
Dec 1948–May 1950 18-Month	24.43" (620.52mm)	30.25" (768.35mm)	-5.82" (-147.83mm)	24th Driest	Driest since: 1948	1977
Dec 1948–May 1950 18-Month	24.43" (620.52mm)	30.25" (768.35mm)	-5.82" (-147.83mm)	103rd Wettest	Wettest since: 1949	1983
Jun 1948–May 1950 24-Month	27.65" (702.31mm)	34.89" (886.21mm)	-7.24" (-183.90mm)	22nd Driest	Driest since: 1934	2022
Jun 1948–May 1950 24-Month	27.65" (702.31mm)	34.89" (886.21mm)	-7.24" (-183.90mm)	105th Wettest	Wettest since: 1949	1983
Jun 1947–May 1950 36-Month	42.05" (1,068.07mm)	52.30" (1,328.42mm)	-10.25" (-260.35mm)	12th Driest	Driest since: 1931	2022
Jun 1947–May 1950 36-Month	42.05" (1,068.07mm)	52.30" (1,328.42mm)	-10.25" (-260.35mm)	114th Wettest	Wettest since: 1949	1984
Jun 1946–May 1950 48-Month	55.94" (1,420.88mm)	69.56" (1,766.82mm)	-13.62" (-345.94mm)	8th Driest	Driest since: 1934	2015
Jun 1946–May 1950 48-Month	55.94" (1,420.88mm)	69.56" (1,766.82mm)	-13.62" (-345.94mm)	117th Wettest	Wettest since: 1949	1998
Jun 1945–May 1950 60-Month	73.54" (1,867.92mm)	86.83" (2,205.48mm)	-13.29" (-337.56mm)	10th Driest	Driest since: 1934	1933
Jun 1945–May 1950 60-Month	73.54" (1,867.92mm)	86.83" (2,205.48mm)	-13.29" (-337.56mm)	114th Wettest	Wettest since: 1949	1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published May 2023, retrieved on May 31, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings