Regional Rankings

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Month:

Region:

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 2007

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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 2007 1-Month	0.31" (7.87mm)	0.92" (23.37mm)	-0.61" (-15.50mm)	10th Driest	Driest since: 2001	1924
	0.31" (7.87mm)	0.92" (23.37mm)	-0.61" (-15.50mm)	119th Wettest	Wettest since: 2006	1998
	Ties: 1970
Apr–May 2007 2-Month	1.43" (36.32mm)	2.26" (57.40mm)	-0.83" (-21.08mm)	26th Driest	Driest since: 2004	1909
Apr–May 2007 2-Month	1.43" (36.32mm)	2.26" (57.40mm)	-0.83" (-21.08mm)	103rd Wettest	Wettest since: 2006	1896
Mar–May 2007 3-Month	2.11" (53.59mm)	4.59" (116.59mm)	-2.48" (-63.00mm)	7th Driest	Driest since: 1997	2008
Mar–May 2007 3-Month	2.11" (53.59mm)	4.59" (116.59mm)	-2.48" (-63.00mm)	122nd Wettest	Wettest since: 2006	1995
Feb–May 2007 4-Month	5.02" (127.51mm)	7.31" (185.67mm)	-2.29" (-58.16mm)	27th Driest	Driest since: 2002	1997
Feb–May 2007 4-Month	5.02" (127.51mm)	7.31" (185.67mm)	-2.29" (-58.16mm)	102nd Wettest	Wettest since: 2006	1998
Jan–May 2007 5-Month	5.63" (143.00mm)	10.29" (261.37mm)	-4.66" (-118.37mm)	12th Driest	Driest since: 2002	2022
	5.63" (143.00mm)	10.29" (261.37mm)	-4.66" (-118.37mm)	117th Wettest	Wettest since: 2006	1998
	Ties: 1929
Dec 2006–May 2007 6-Month	7.74" (196.60mm)	12.84" (326.14mm)	-5.10" (-129.54mm)	11th Driest	Driest since: 1985	1924
Dec 2006–May 2007 6-Month	7.74" (196.60mm)	12.84" (326.14mm)	-5.10" (-129.54mm)	117th Wettest	Wettest since: 2006	1995
Nov 2006–May 2007 7-Month	9.22" (234.19mm)	14.71" (373.63mm)	-5.49" (-139.44mm)	8th Driest	Driest since: 1977	1977
Nov 2006–May 2007 7-Month	9.22" (234.19mm)	14.71" (373.63mm)	-5.49" (-139.44mm)	120th Wettest	Wettest since: 2006	1995
Oct 2006–May 2007 8-Month	9.84" (249.94mm)	15.74" (399.80mm)	-5.90" (-149.86mm)	6th Driest	Driest since: 1977	1977
Oct 2006–May 2007 8-Month	9.84" (249.94mm)	15.74" (399.80mm)	-5.90" (-149.86mm)	122nd Wettest	Wettest since: 2006	1983
Sep 2006–May 2007 9-Month	9.96" (252.98mm)	16.23" (412.24mm)	-6.27" (-159.26mm)	4th Driest	Driest since: 1977	2021
Sep 2006–May 2007 9-Month	9.96" (252.98mm)	16.23" (412.24mm)	-6.27" (-159.26mm)	124th Wettest	Wettest since: 2006	1983
Aug 2006–May 2007 10-Month	10.02" (254.51mm)	16.62" (422.15mm)	-6.60" (-167.64mm)	4th Driest	Driest since: 1977	2021
Aug 2006–May 2007 10-Month	10.02" (254.51mm)	16.62" (422.15mm)	-6.60" (-167.64mm)	124th Wettest	Wettest since: 2006	1983
Jul 2006–May 2007 11-Month	10.39" (263.91mm)	16.95" (430.53mm)	-6.56" (-166.62mm)	4th Driest	Driest since: 1977	2021
Jul 2006–May 2007 11-Month	10.39" (263.91mm)	16.95" (430.53mm)	-6.56" (-166.62mm)	124th Wettest	Wettest since: 2006	1983
Jun 2006–May 2007 12-Month	10.60" (269.24mm)	17.44" (442.98mm)	-6.84" (-173.74mm)	4th Driest	Driest since: 1977	2021
Jun 2006–May 2007 12-Month	10.60" (269.24mm)	17.44" (442.98mm)	-6.84" (-173.74mm)	124th Wettest	Wettest since: 2006	1983
Dec 2005–May 2007 18-Month	28.85" (732.79mm)	30.25" (768.35mm)	-1.40" (-35.56mm)	57th Driest	Driest since: 2003	1977
Dec 2005–May 2007 18-Month	28.85" (732.79mm)	30.25" (768.35mm)	-1.40" (-35.56mm)	70th Wettest	Wettest since: 2006	1983
Jun 2005–May 2007 24-Month	33.01" (838.45mm)	34.89" (886.21mm)	-1.88" (-47.76mm)	53rd Driest	Driest since: 2004	2022
Jun 2005–May 2007 24-Month	33.01" (838.45mm)	34.89" (886.21mm)	-1.88" (-47.76mm)	74th Wettest	Wettest since: 2006	1983
Jun 2004–May 2007 36-Month	56.45" (1,433.83mm)	52.30" (1,328.42mm)	4.15" (105.41mm)	92nd Driest	Driest since: 2005	2022
Jun 2004–May 2007 36-Month	56.45" (1,433.83mm)	52.30" (1,328.42mm)	4.15" (105.41mm)	34th Wettest	Wettest since: 2006	1984
Jun 2003–May 2007 48-Month	71.68" (1,820.67mm)	69.56" (1,766.82mm)	2.12" (53.85mm)	80th Driest	Driest since: 2005	2015
Jun 2003–May 2007 48-Month	71.68" (1,820.67mm)	69.56" (1,766.82mm)	2.12" (53.85mm)	45th Wettest	Wettest since: 2006	1998
Jun 2002–May 2007 60-Month	89.17" (2,264.92mm)	86.83" (2,205.48mm)	2.34" (59.44mm)	81st Driest	Driest since: 2005	1933
Jun 2002–May 2007 60-Month	89.17" (2,264.92mm)	86.83" (2,205.48mm)	2.34" (59.44mm)	43rd Wettest	Wettest since: 2006	1999

Citing This Page

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