National Rankings

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Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Contiguous U.S.

Precipitation Rankings, January 2011

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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
January 2011 1-Month	1.65" (41.91mm)	2.31" (58.67mm)	-0.66" (-16.76mm)	15th Driest	Driest since: 2009	1981
	1.65" (41.91mm)	2.31" (58.67mm)	-0.66" (-16.76mm)	114th Wettest	Wettest since: 2010	1916
	Ties: 2022
Dec 2010–Jan 2011 2-Month	4.10" (104.14mm)	4.66" (118.36mm)	-0.56" (-14.22mm)	30th Driest	Driest since: 2001	1981
	4.10" (104.14mm)	4.66" (118.36mm)	-0.56" (-14.22mm)	98th Wettest	Wettest since: 2010	1932
	Ties: 1900, 1929
Nov 2010–Jan 2011 3-Month	6.32" (160.53mm)	6.89" (175.01mm)	-0.57" (-14.48mm)	36th Driest	Driest since: 2003	1977
	6.32" (160.53mm)	6.89" (175.01mm)	-0.57" (-14.48mm)	92nd Wettest	Wettest since: 2010	2016
	Ties: 1994
Oct 2010–Jan 2011 4-Month	8.29" (210.57mm)	9.06" (230.12mm)	-0.77" (-19.55mm)	32nd Driest	Driest since: 2000	1981
Oct 2010–Jan 2011 4-Month	8.29" (210.57mm)	9.06" (230.12mm)	-0.77" (-19.55mm)	96th Wettest	Wettest since: 2010	2016
Sep 2010–Jan 2011 5-Month	11.07" (281.18mm)	11.55" (293.37mm)	-0.48" (-12.19mm)	43rd Driest	Driest since: 2001	1940
Sep 2010–Jan 2011 5-Month	11.07" (281.18mm)	11.55" (293.37mm)	-0.48" (-12.19mm)	85th Wettest	Wettest since: 2010	2019
Aug 2010–Jan 2011 6-Month	13.58" (344.93mm)	14.17" (359.92mm)	-0.59" (-14.99mm)	40th Driest	Driest since: 2001	1940
	13.58" (344.93mm)	14.17" (359.92mm)	-0.59" (-14.99mm)	88th Wettest	Wettest since: 2010	2019
	Ties: 1948
Jul 2010–Jan 2011 7-Month	16.90" (429.26mm)	16.96" (430.78mm)	-0.06" (-1.52mm)	52nd Driest	Driest since: 2004	1940
Jul 2010–Jan 2011 7-Month	16.90" (429.26mm)	16.96" (430.78mm)	-0.06" (-1.52mm)	76th Wettest	Wettest since: 2010	2019
Jun 2010–Jan 2011 8-Month	20.39" (517.91mm)	19.88" (504.95mm)	0.51" (12.96mm)	78th Driest	Driest since: 2009	1981
	20.39" (517.91mm)	19.88" (504.95mm)	0.51" (12.96mm)	50th Wettest	Wettest since: 2010	2019
	Ties: 1980
May 2010–Jan 2011 9-Month	23.71" (602.23mm)	22.79" (578.87mm)	0.92" (23.36mm)	87th Driest	Driest since: 2009	1918
	23.71" (602.23mm)	22.79" (578.87mm)	0.92" (23.36mm)	41st Wettest	Wettest since: 2010	2016
	Ties: 1994
Apr 2010–Jan 2011 10-Month	26.09" (662.69mm)	25.32" (643.13mm)	0.77" (19.56mm)	78th Driest	Driest since: 2009	1940
Apr 2010–Jan 2011 10-Month	26.09" (662.69mm)	25.32" (643.13mm)	0.77" (19.56mm)	50th Wettest	Wettest since: 2010	2016
Mar 2010–Jan 2011 11-Month	28.39" (721.11mm)	27.83" (706.88mm)	0.56" (14.23mm)	76th Driest	Driest since: 2009	1957
Mar 2010–Jan 2011 11-Month	28.39" (721.11mm)	27.83" (706.88mm)	0.56" (14.23mm)	52nd Wettest	Wettest since: 2010	1974
Feb 2010–Jan 2011 12-Month	30.40" (772.16mm)	29.96" (760.98mm)	0.44" (11.18mm)	70th Driest	Driest since: 2008	1931
Feb 2010–Jan 2011 12-Month	30.40" (772.16mm)	29.96" (760.98mm)	0.44" (11.18mm)	58th Wettest	Wettest since: 2010	1974
Aug 2009–Jan 2011 18-Month	47.25" (1,200.15mm)	44.14" (1,121.16mm)	3.11" (78.99mm)	102nd Driest	Driest since: 2009	1955
Aug 2009–Jan 2011 18-Month	47.25" (1,200.15mm)	44.14" (1,121.16mm)	3.11" (78.99mm)	25th Wettest	Wettest since: 2010	2020
Feb 2009–Jan 2011 24-Month	63.72" (1,618.49mm)	59.93" (1,522.22mm)	3.79" (96.27mm)	101st Driest	Driest since: 2009	1918
Feb 2009–Jan 2011 24-Month	63.72" (1,618.49mm)	59.93" (1,522.22mm)	3.79" (96.27mm)	26th Wettest	Wettest since: 2010	2020
Feb 2008–Jan 2011 36-Month	94.35" (2,396.49mm)	89.86" (2,282.44mm)	4.49" (114.05mm)	99th Driest	Driest since: 2010	1957
Feb 2008–Jan 2011 36-Month	94.35" (2,396.49mm)	89.86" (2,282.44mm)	4.49" (114.05mm)	27th Wettest	Wettest since: 2006	2020
Feb 2007–Jan 2011 48-Month	123.52" (3,137.41mm)	119.76" (3,041.90mm)	3.76" (95.51mm)	91st Driest	Driest since: 2010	1957
Feb 2007–Jan 2011 48-Month	123.52" (3,137.41mm)	119.76" (3,041.90mm)	3.76" (95.51mm)	34th Wettest	Wettest since: 2007	2020
Feb 2006–Jan 2011 60-Month	152.95" (3,884.93mm)	149.63" (3,800.60mm)	3.32" (84.33mm)	83rd Driest	Driest since: 2010	1957
Feb 2006–Jan 2011 60-Month	152.95" (3,884.93mm)	149.63" (3,800.60mm)	3.32" (84.33mm)	41st Wettest	Wettest since: 2009	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published January 2023, retrieved on January 29, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings