Regional Rankings

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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 2016

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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 2016 1-Month	0.86" (21.84mm)	0.92" (23.37mm)	-0.06" (-1.53mm)	71st Driest	Driest since: 2014	1924
	0.86" (21.84mm)	0.92" (23.37mm)	-0.06" (-1.53mm)	58th Wettest	Wettest since: 2015	1998
	Ties: 1951, 1961
Apr–May 2016 2-Month	2.41" (61.21mm)	2.26" (57.40mm)	0.15" (3.81mm)	80th Driest	Driest since: 2015	1909
Apr–May 2016 2-Month	2.41" (61.21mm)	2.26" (57.40mm)	0.15" (3.81mm)	49th Wettest	Wettest since: 2011	1896
Mar–May 2016 3-Month	5.69" (144.53mm)	4.59" (116.59mm)	1.10" (27.94mm)	99th Driest	Driest since: 2015	2008
Mar–May 2016 3-Month	5.69" (144.53mm)	4.59" (116.59mm)	1.10" (27.94mm)	30th Wettest	Wettest since: 2011	1995
Feb–May 2016 4-Month	6.60" (167.64mm)	7.31" (185.67mm)	-0.71" (-18.03mm)	61st Driest	Driest since: 2015	1997
Feb–May 2016 4-Month	6.60" (167.64mm)	7.31" (185.67mm)	-0.71" (-18.03mm)	68th Wettest	Wettest since: 2014	1998
Jan–May 2016 5-Month	11.07" (281.18mm)	10.29" (261.37mm)	0.78" (19.81mm)	84th Driest	Driest since: 2015	2022
Jan–May 2016 5-Month	11.07" (281.18mm)	10.29" (261.37mm)	0.78" (19.81mm)	45th Wettest	Wettest since: 2010	1998
Dec 2015–May 2016 6-Month	14.38" (365.25mm)	12.84" (326.14mm)	1.54" (39.11mm)	90th Driest	Driest since: 2015	1924
Dec 2015–May 2016 6-Month	14.38" (365.25mm)	12.84" (326.14mm)	1.54" (39.11mm)	38th Wettest	Wettest since: 2011	1995
Nov 2015–May 2016 7-Month	16.01" (406.65mm)	14.71" (373.63mm)	1.30" (33.02mm)	84th Driest	Driest since: 2015	1977
Nov 2015–May 2016 7-Month	16.01" (406.65mm)	14.71" (373.63mm)	1.30" (33.02mm)	44th Wettest	Wettest since: 2011	1995
Oct 2015–May 2016 8-Month	17.29" (439.17mm)	15.74" (399.80mm)	1.55" (39.37mm)	87th Driest	Driest since: 2015	1977
Oct 2015–May 2016 8-Month	17.29" (439.17mm)	15.74" (399.80mm)	1.55" (39.37mm)	41st Wettest	Wettest since: 2011	1983
Sep 2015–May 2016 9-Month	17.62" (447.55mm)	16.23" (412.24mm)	1.39" (35.31mm)	85th Driest	Driest since: 2015	2021
Sep 2015–May 2016 9-Month	17.62" (447.55mm)	16.23" (412.24mm)	1.39" (35.31mm)	43rd Wettest	Wettest since: 2011	1983
Aug 2015–May 2016 10-Month	17.87" (453.90mm)	16.62" (422.15mm)	1.25" (31.75mm)	85th Driest	Driest since: 2015	2021
Aug 2015–May 2016 10-Month	17.87" (453.90mm)	16.62" (422.15mm)	1.25" (31.75mm)	43rd Wettest	Wettest since: 2011	1983
Jul 2015–May 2016 11-Month	18.76" (476.50mm)	16.95" (430.53mm)	1.81" (45.97mm)	91st Driest	Driest since: 2015	2021
Jul 2015–May 2016 11-Month	18.76" (476.50mm)	16.95" (430.53mm)	1.81" (45.97mm)	37th Wettest	Wettest since: 2011	1983
Jun 2015–May 2016 12-Month	19.12" (485.65mm)	17.44" (442.98mm)	1.68" (42.67mm)	90th Driest	Driest since: 2015	2021
	19.12" (485.65mm)	17.44" (442.98mm)	1.68" (42.67mm)	38th Wettest	Wettest since: 2011	1983
	Ties: 1984
Dec 2014–May 2016 18-Month	28.83" (732.28mm)	30.25" (768.35mm)	-1.42" (-36.07mm)	56th Driest	Driest since: 2015	1977
Dec 2014–May 2016 18-Month	28.83" (732.28mm)	30.25" (768.35mm)	-1.42" (-36.07mm)	71st Wettest	Wettest since: 2012	1983
Jun 2014–May 2016 24-Month	33.20" (843.28mm)	34.89" (886.21mm)	-1.69" (-42.93mm)	55th Driest	Driest since: 2015	2022
Jun 2014–May 2016 24-Month	33.20" (843.28mm)	34.89" (886.21mm)	-1.69" (-42.93mm)	72nd Wettest	Wettest since: 2012	1983
Jun 2013–May 2016 36-Month	44.39" (1,127.51mm)	52.30" (1,328.42mm)	-7.91" (-200.91mm)	25th Driest	Driest since: 2015	2022
Jun 2013–May 2016 36-Month	44.39" (1,127.51mm)	52.30" (1,328.42mm)	-7.91" (-200.91mm)	101st Wettest	Wettest since: 2013	1984
Jun 2012–May 2016 48-Month	57.23" (1,453.64mm)	69.56" (1,766.82mm)	-12.33" (-313.18mm)	13th Driest	Driest since: 2015	2015
Jun 2012–May 2016 48-Month	57.23" (1,453.64mm)	69.56" (1,766.82mm)	-12.33" (-313.18mm)	112th Wettest	Wettest since: 2014	1998
Jun 2011–May 2016 60-Month	69.95" (1,776.73mm)	86.83" (2,205.48mm)	-16.88" (-428.75mm)	5th Driest	Driest since: 1991	1933
Jun 2011–May 2016 60-Month	69.95" (1,776.73mm)	86.83" (2,205.48mm)	-16.88" (-428.75mm)	119th Wettest	Wettest since: 2015	1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published March 2023, retrieved on March 21, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings