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, October 2009

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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
October 2009 1-Month	6.65" (168.91mm)	3.13" (79.50mm)	3.52" (89.41mm)	122nd Driest	Driest since: 2008	1963
October 2009 1-Month	6.65" (168.91mm)	3.13" (79.50mm)	3.52" (89.41mm)	7th Wettest	Wettest since: 2005	2012
Sep–Oct 2009 2-Month	11.83" (300.48mm)	6.73" (170.94mm)	5.10" (129.54mm)	122nd Driest	Driest since: 2008	1941
Sep–Oct 2009 2-Month	11.83" (300.48mm)	6.73" (170.94mm)	5.10" (129.54mm)	7th Wettest	Wettest since: 2006	1935
Aug–Oct 2009 3-Month	20.06" (509.52mm)	11.33" (287.78mm)	8.73" (221.74mm)	128th Driest	Driest since: 2008	1930
Aug–Oct 2009 3-Month	20.06" (509.52mm)	11.33" (287.78mm)	8.73" (221.74mm)	1st Wettest	Wettest to Date	2009
Jul–Oct 2009 4-Month	22.61" (574.29mm)	15.64" (397.26mm)	6.97" (177.03mm)	123rd Driest	Driest since: 2008	1968
Jul–Oct 2009 4-Month	22.61" (574.29mm)	15.64" (397.26mm)	6.97" (177.03mm)	6th Wettest	Wettest since: 1989	2020
Jun–Oct 2009 5-Month	28.21" (716.53mm)	19.27" (489.46mm)	8.94" (227.07mm)	125th Driest	Driest since: 2008	1921
Jun–Oct 2009 5-Month	28.21" (716.53mm)	19.27" (489.46mm)	8.94" (227.07mm)	4th Wettest	Wettest since: 2006	1989
May–Oct 2009 6-Month	33.22" (843.79mm)	22.83" (579.88mm)	10.39" (263.91mm)	127th Driest	Driest since: 2008	1964
May–Oct 2009 6-Month	33.22" (843.79mm)	22.83" (579.88mm)	10.39" (263.91mm)	2nd Wettest	Wettest since: 1989	1989
Apr–Oct 2009 7-Month	38.52" (978.41mm)	26.31" (668.27mm)	12.21" (310.14mm)	127th Driest	Driest since: 2008	1930
Apr–Oct 2009 7-Month	38.52" (978.41mm)	26.31" (668.27mm)	12.21" (310.14mm)	2nd Wettest	Wettest since: 1989	1989
Mar–Oct 2009 8-Month	40.88" (1,038.35mm)	30.29" (769.37mm)	10.59" (268.98mm)	126th Driest	Driest since: 2008	1930
Mar–Oct 2009 8-Month	40.88" (1,038.35mm)	30.29" (769.37mm)	10.59" (268.98mm)	3rd Wettest	Wettest since: 1989	1989
Feb–Oct 2009 9-Month	41.32" (1,049.53mm)	33.33" (846.58mm)	7.99" (202.95mm)	119th Driest	Driest since: 2008	1930
Feb–Oct 2009 9-Month	41.32" (1,049.53mm)	33.33" (846.58mm)	7.99" (202.95mm)	10th Wettest	Wettest since: 2003	1989
Jan–Oct 2009 10-Month	43.68" (1,109.47mm)	36.82" (935.23mm)	6.86" (174.24mm)	115th Driest	Driest since: 2008	1930
Jan–Oct 2009 10-Month	43.68" (1,109.47mm)	36.82" (935.23mm)	6.86" (174.24mm)	14th Wettest	Wettest since: 2003	1989
Dec 2008–Oct 2009 11-Month	48.93" (1,242.82mm)	40.29" (1,023.37mm)	8.64" (219.45mm)	115th Driest	Driest since: 2008	1930
Dec 2008–Oct 2009 11-Month	48.93" (1,242.82mm)	40.29" (1,023.37mm)	8.64" (219.45mm)	13th Wettest	Wettest since: 2003	1958
Nov 2008–Oct 2009 12-Month	53.66" (1,362.96mm)	43.35" (1,101.09mm)	10.31" (261.87mm)	120th Driest	Driest since: 2008	1930
Nov 2008–Oct 2009 12-Month	53.66" (1,362.96mm)	43.35" (1,101.09mm)	10.31" (261.87mm)	8th Wettest	Wettest since: 2003	1958
May 2008–Oct 2009 18-Month	74.35" (1,888.49mm)	66.15" (1,680.21mm)	8.20" (208.28mm)	100th Driest	Driest since: 2008	1930
May 2008–Oct 2009 18-Month	74.35" (1,888.49mm)	66.15" (1,680.21mm)	8.20" (208.28mm)	28th Wettest	Wettest since: 2004	2010
Nov 2007–Oct 2009 24-Month	92.42" (2,347.47mm)	86.62" (2,200.15mm)	5.80" (147.32mm)	86th Driest	Driest since: 2008	1930
Nov 2007–Oct 2009 24-Month	92.42" (2,347.47mm)	86.62" (2,200.15mm)	5.80" (147.32mm)	41st Wettest	Wettest since: 2006	1979
Nov 2006–Oct 2009 36-Month	132.24" (3,358.90mm)	129.89" (3,299.21mm)	2.35" (59.69mm)	61st Driest	Driest since: 2008	1931
Nov 2006–Oct 2009 36-Month	132.24" (3,358.90mm)	129.89" (3,299.21mm)	2.35" (59.69mm)	65th Wettest	Wettest since: 2007	1937
Nov 2005–Oct 2009 48-Month	178.63" (4,537.20mm)	173.11" (4,396.99mm)	5.52" (140.21mm)	71st Driest	Driest since: 2008	1966
Nov 2005–Oct 2009 48-Month	178.63" (4,537.20mm)	173.11" (4,396.99mm)	5.52" (140.21mm)	54th Wettest	Wettest since: 2007	1938
Nov 2004–Oct 2009 60-Month	225.68" (5,732.27mm)	216.32" (5,494.53mm)	9.36" (237.74mm)	89th Driest	Driest since: 2008	1966
Nov 2004–Oct 2009 60-Month	225.68" (5,732.27mm)	216.32" (5,494.53mm)	9.36" (237.74mm)	35th Wettest	Wettest since: 2007	1937

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on May 31, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings