Statewide Rankings

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Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Delaware

Precipitation Rankings, May 2012

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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 2012 1-Month	2.44" (61.98mm)	3.56" (90.42mm)	-1.12" (-28.44mm)	37th Driest	Driest since: 2011	1964
May 2012 1-Month	2.44" (61.98mm)	3.56" (90.42mm)	-1.12" (-28.44mm)	92nd Wettest	Wettest since: 2009	1948
Apr–May 2012 2-Month	5.15" (130.81mm)	7.04" (178.82mm)	-1.89" (-48.01mm)	28th Driest	Driest since: 2010	1942
Apr–May 2012 2-Month	5.15" (130.81mm)	7.04" (178.82mm)	-1.89" (-48.01mm)	101st Wettest	Wettest since: 2011	1948
Mar–May 2012 3-Month	6.22" (157.99mm)	11.01" (279.65mm)	-4.79" (-121.66mm)	3rd Driest	Driest since: 2006	1986
Mar–May 2012 3-Month	6.22" (157.99mm)	11.01" (279.65mm)	-4.79" (-121.66mm)	126th Wettest	Wettest since: 2011	1983
Feb–May 2012 4-Month	8.43" (214.12mm)	14.06" (357.12mm)	-5.63" (-143.00mm)	5th Driest	Driest since: 2006	2006
Feb–May 2012 4-Month	8.43" (214.12mm)	14.06" (357.12mm)	-5.63" (-143.00mm)	124th Wettest	Wettest since: 2011	1983
Jan–May 2012 5-Month	10.55" (267.97mm)	17.55" (445.77mm)	-7.00" (-177.80mm)	1st Driest	Driest since: 2012	2012
Jan–May 2012 5-Month	10.55" (267.97mm)	17.55" (445.77mm)	-7.00" (-177.80mm)	128th Wettest	Wettest since: 2011	1948
Dec 2011–May 2012 6-Month	13.69" (347.73mm)	21.01" (533.65mm)	-7.32" (-185.92mm)	3rd Driest	Driest since: 1986	1986
Dec 2011–May 2012 6-Month	13.69" (347.73mm)	21.01" (533.65mm)	-7.32" (-185.92mm)	125th Wettest	Wettest since: 2011	1984
Nov 2011–May 2012 7-Month	17.31" (439.67mm)	24.08" (611.63mm)	-6.77" (-171.96mm)	7th Driest	Driest since: 1986	1977
Nov 2011–May 2012 7-Month	17.31" (439.67mm)	24.08" (611.63mm)	-6.77" (-171.96mm)	121st Wettest	Wettest since: 2011	1984
Oct 2011–May 2012 8-Month	20.07" (509.78mm)	27.23" (691.64mm)	-7.16" (-181.86mm)	7th Driest	Driest since: 2002	2002
Oct 2011–May 2012 8-Month	20.07" (509.78mm)	27.23" (691.64mm)	-7.16" (-181.86mm)	121st Wettest	Wettest since: 2011	1984
Sep 2011–May 2012 9-Month	24.24" (615.70mm)	30.82" (782.83mm)	-6.58" (-167.13mm)	9th Driest	Driest since: 2002	2002
Sep 2011–May 2012 9-Month	24.24" (615.70mm)	30.82" (782.83mm)	-6.58" (-167.13mm)	119th Wettest	Wettest since: 2011	1984
Aug 2011–May 2012 10-Month	34.28" (870.71mm)	35.41" (899.41mm)	-1.13" (-28.70mm)	62nd Driest	Driest since: 2011	1985
Aug 2011–May 2012 10-Month	34.28" (870.71mm)	35.41" (899.41mm)	-1.13" (-28.70mm)	66th Wettest	Wettest since: 2010	2010
Jul 2011–May 2012 11-Month	37.98" (964.69mm)	39.69" (1,008.13mm)	-1.71" (-43.44mm)	53rd Driest	Driest since: 2011	1931
Jul 2011–May 2012 11-Month	37.98" (964.69mm)	39.69" (1,008.13mm)	-1.71" (-43.44mm)	75th Wettest	Wettest since: 2010	2021
Jun 2011–May 2012 12-Month	39.84" (1,011.94mm)	43.32" (1,100.33mm)	-3.48" (-88.39mm)	43rd Driest	Driest since: 2011	1965
	39.84" (1,011.94mm)	43.32" (1,100.33mm)	-3.48" (-88.39mm)	85th Wettest	Wettest since: 2010	2010
	Ties: 1911
Dec 2010–May 2012 18-Month	57.21" (1,453.13mm)	64.29" (1,632.97mm)	-7.08" (-179.84mm)	22nd Driest	Driest since: 1987	1931
Dec 2010–May 2012 18-Month	57.21" (1,453.13mm)	64.29" (1,632.97mm)	-7.08" (-179.84mm)	105th Wettest	Wettest since: 2011	1949
Jun 2010–May 2012 24-Month	78.39" (1,991.11mm)	86.54" (2,198.12mm)	-8.15" (-207.01mm)	21st Driest	Driest since: 1986	1931
Jun 2010–May 2012 24-Month	78.39" (1,991.11mm)	86.54" (2,198.12mm)	-8.15" (-207.01mm)	106th Wettest	Wettest since: 2011	2019
Jun 2009–May 2012 36-Month	136.14" (3,457.96mm)	129.85" (3,298.19mm)	6.29" (159.77mm)	81st Driest	Driest since: 2009	1967
Jun 2009–May 2012 36-Month	136.14" (3,457.96mm)	129.85" (3,298.19mm)	6.29" (159.77mm)	45th Wettest	Wettest since: 2011	2005
Jun 2008–May 2012 48-Month	176.73" (4,488.94mm)	173.12" (4,397.25mm)	3.61" (91.69mm)	69th Driest	Driest since: 2011	1966
Jun 2008–May 2012 48-Month	176.73" (4,488.94mm)	173.12" (4,397.25mm)	3.61" (91.69mm)	56th Wettest	Wettest since: 2010	1939
Jun 2007–May 2012 60-Month	215.70" (5,478.78mm)	216.25" (5,492.75mm)	-0.55" (-13.97mm)	50th Driest	Driest since: 2003	1967
Jun 2007–May 2012 60-Month	215.70" (5,478.78mm)	216.25" (5,492.75mm)	-0.55" (-13.97mm)	74th Wettest	Wettest since: 2011	1939

Citing This Page

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