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, February 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
February 2011 1-Month	1.98" (50.29mm)	2.13" (54.10mm)	-0.15" (-3.81mm)	50th Driest	Driest since: 2009	1947
February 2011 1-Month	1.98" (50.29mm)	2.13" (54.10mm)	-0.15" (-3.81mm)	79th Wettest	Wettest since: 2010	1998
Jan–Feb 2011 2-Month	3.63" (92.20mm)	4.45" (113.03mm)	-0.82" (-20.83mm)	19th Driest	Driest since: 2009	1977
Jan–Feb 2011 2-Month	3.63" (92.20mm)	4.45" (113.03mm)	-0.82" (-20.83mm)	110th Wettest	Wettest since: 2010	1998
Dec 2010–Feb 2011 3-Month	6.08" (154.43mm)	6.79" (172.47mm)	-0.71" (-18.04mm)	26th Driest	Driest since: 2009	1977
Dec 2010–Feb 2011 3-Month	6.08" (154.43mm)	6.79" (172.47mm)	-0.71" (-18.04mm)	102nd Wettest	Wettest since: 2010	2019
Nov 2010–Feb 2011 4-Month	8.30" (210.82mm)	9.02" (229.11mm)	-0.72" (-18.29mm)	35th Driest	Driest since: 2009	1977
Nov 2010–Feb 2011 4-Month	8.30" (210.82mm)	9.02" (229.11mm)	-0.72" (-18.29mm)	93rd Wettest	Wettest since: 2010	2019
Oct 2010–Feb 2011 5-Month	10.27" (260.86mm)	11.19" (284.23mm)	-0.92" (-23.37mm)	28th Driest	Driest since: 2009	1977
Oct 2010–Feb 2011 5-Month	10.27" (260.86mm)	11.19" (284.23mm)	-0.92" (-23.37mm)	100th Wettest	Wettest since: 2010	2019
Sep 2010–Feb 2011 6-Month	13.05" (331.47mm)	13.68" (347.47mm)	-0.63" (-16.00mm)	42nd Driest	Driest since: 2009	1977
Sep 2010–Feb 2011 6-Month	13.05" (331.47mm)	13.68" (347.47mm)	-0.63" (-16.00mm)	86th Wettest	Wettest since: 2010	2019
Aug 2010–Feb 2011 7-Month	15.56" (395.22mm)	16.31" (414.27mm)	-0.75" (-19.05mm)	32nd Driest	Driest since: 2002	1977
	15.56" (395.22mm)	16.31" (414.27mm)	-0.75" (-19.05mm)	96th Wettest	Wettest since: 2010	2019
	Ties: 1970
Jul 2010–Feb 2011 8-Month	18.88" (479.55mm)	19.09" (484.89mm)	-0.21" (-5.34mm)	53rd Driest	Driest since: 2009	1977
Jul 2010–Feb 2011 8-Month	18.88" (479.55mm)	19.09" (484.89mm)	-0.21" (-5.34mm)	75th Wettest	Wettest since: 2010	2019
Jun 2010–Feb 2011 9-Month	22.37" (568.20mm)	22.02" (559.31mm)	0.35" (8.89mm)	70th Driest	Driest since: 2009	1918, 1931, 1977
Jun 2010–Feb 2011 9-Month	22.37" (568.20mm)	22.02" (559.31mm)	0.35" (8.89mm)	58th Wettest	Wettest since: 2010	2019
May 2010–Feb 2011 10-Month	25.69" (652.53mm)	24.92" (632.97mm)	0.77" (19.56mm)	79th Driest	Driest since: 2009	1918
May 2010–Feb 2011 10-Month	25.69" (652.53mm)	24.92" (632.97mm)	0.77" (19.56mm)	49th Wettest	Wettest since: 2010	2019
Apr 2010–Feb 2011 11-Month	28.07" (712.98mm)	27.45" (697.23mm)	0.62" (15.75mm)	72nd Driest	Driest since: 2009	1931
Apr 2010–Feb 2011 11-Month	28.07" (712.98mm)	27.45" (697.23mm)	0.62" (15.75mm)	56th Wettest	Wettest since: 2010	2019
Mar 2010–Feb 2011 12-Month	30.37" (771.40mm)	29.96" (760.98mm)	0.41" (10.42mm)	63rd Driest	Driest since: 2009	1931
Mar 2010–Feb 2011 12-Month	30.37" (771.40mm)	29.96" (760.98mm)	0.41" (10.42mm)	65th Wettest	Wettest since: 2010	2019
Sep 2009–Feb 2011 18-Month	46.54" (1,182.12mm)	43.65" (1,108.71mm)	2.89" (73.41mm)	104th Driest	Driest since: 2009	1918
Sep 2009–Feb 2011 18-Month	46.54" (1,182.12mm)	43.65" (1,108.71mm)	2.89" (73.41mm)	23rd Wettest	Wettest since: 2010	2020
Mar 2009–Feb 2011 24-Month	64.15" (1,629.41mm)	59.92" (1,521.97mm)	4.23" (107.44mm)	108th Driest	Driest since: 2010	1935
Mar 2009–Feb 2011 24-Month	64.15" (1,629.41mm)	59.92" (1,521.97mm)	4.23" (107.44mm)	19th Wettest	Wettest since: 2005	2020
Mar 2008–Feb 2011 36-Month	93.86" (2,384.04mm)	89.87" (2,282.70mm)	3.99" (101.34mm)	98th Driest	Driest since: 2010	1957
Mar 2008–Feb 2011 36-Month	93.86" (2,384.04mm)	89.87" (2,282.70mm)	3.99" (101.34mm)	28th Wettest	Wettest since: 2006	2020
Mar 2007–Feb 2011 48-Month	123.74" (3,143.00mm)	119.77" (3,042.16mm)	3.97" (100.84mm)	96th Driest	Driest since: 2010	1957
	123.74" (3,143.00mm)	119.77" (3,042.16mm)	3.97" (100.84mm)	29th Wettest	Wettest since: 2007	2019
	Ties: 2007
Mar 2006–Feb 2011 60-Month	153.41" (3,896.61mm)	149.63" (3,800.60mm)	3.78" (96.01mm)	85th Driest	Driest since: 2010	1957
Mar 2006–Feb 2011 60-Month	153.41" (3,896.61mm)	149.63" (3,800.60mm)	3.78" (96.01mm)	39th Wettest	Wettest since: 2008	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published January 2023, retrieved on January 30, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings