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, September 1930

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
September 1930 1-Month	2.32" (58.93mm)	3.60" (91.44mm)	-1.28" (-32.51mm)	33rd Driest	Driest since: 1927	1941
	2.32" (58.93mm)	3.60" (91.44mm)	-1.28" (-32.51mm)	96th Wettest	Wettest since: 1929	1935
	Ties: 1931
Aug–Sep 1930 2-Month	3.95" (100.33mm)	8.19" (208.03mm)	-4.24" (-107.70mm)	9th Driest	Driest since: 1925	2005
Aug–Sep 1930 2-Month	3.95" (100.33mm)	8.19" (208.03mm)	-4.24" (-107.70mm)	120th Wettest	Wettest since: 1929	1928
Jul–Sep 1930 3-Month	7.37" (187.20mm)	12.51" (317.75mm)	-5.14" (-130.55mm)	4th Driest	Driest since: 1930	1968
	7.37" (187.20mm)	12.51" (317.75mm)	-5.14" (-130.55mm)	125th Wettest	Wettest since: 1929	1938
	Ties: 2007
Jun–Sep 1930 4-Month	10.17" (258.32mm)	16.14" (409.96mm)	-5.97" (-151.64mm)	4th Driest	Driest since: 1930	1968
Jun–Sep 1930 4-Month	10.17" (258.32mm)	16.14" (409.96mm)	-5.97" (-151.64mm)	125th Wettest	Wettest since: 1929	1938
May–Sep 1930 5-Month	12.74" (323.60mm)	19.70" (500.38mm)	-6.96" (-176.78mm)	4th Driest	Driest since: 1930	1964
May–Sep 1930 5-Month	12.74" (323.60mm)	19.70" (500.38mm)	-6.96" (-176.78mm)	125th Wettest	Wettest since: 1929	1989
Apr–Sep 1930 6-Month	14.65" (372.11mm)	23.18" (588.77mm)	-8.53" (-216.66mm)	2nd Driest	Driest since: 1930	1986
Apr–Sep 1930 6-Month	14.65" (372.11mm)	23.18" (588.77mm)	-8.53" (-216.66mm)	127th Wettest	Wettest since: 1929	1989
Mar–Sep 1930 7-Month	16.51" (419.35mm)	27.16" (689.86mm)	-10.65" (-270.51mm)	2nd Driest	Driest since: 1930	1986
Mar–Sep 1930 7-Month	16.51" (419.35mm)	27.16" (689.86mm)	-10.65" (-270.51mm)	127th Wettest	Wettest since: 1929	1989
Feb–Sep 1930 8-Month	18.46" (468.88mm)	30.20" (767.08mm)	-11.74" (-298.20mm)	1st Driest	Driest since: 1930	1930
Feb–Sep 1930 8-Month	18.46" (468.88mm)	30.20" (767.08mm)	-11.74" (-298.20mm)	128th Wettest	Wettest since: 1929	1989
Jan–Sep 1930 9-Month	21.94" (557.28mm)	33.69" (855.73mm)	-11.75" (-298.45mm)	1st Driest	Driest since: 1930	1930
Jan–Sep 1930 9-Month	21.94" (557.28mm)	33.69" (855.73mm)	-11.75" (-298.45mm)	128th Wettest	Wettest since: 1929	1989
Dec 1929–Sep 1930 10-Month	24.45" (621.03mm)	37.15" (943.61mm)	-12.70" (-322.58mm)	2nd Driest	Driest since: 1930	1986
Dec 1929–Sep 1930 10-Month	24.45" (621.03mm)	37.15" (943.61mm)	-12.70" (-322.58mm)	126th Wettest	Wettest since: 1929	1958
Nov 1929–Sep 1930 11-Month	26.96" (684.78mm)	40.22" (1,021.59mm)	-13.26" (-336.81mm)	1st Driest	Driest since: 1930	1930
Nov 1929–Sep 1930 11-Month	26.96" (684.78mm)	40.22" (1,021.59mm)	-13.26" (-336.81mm)	127th Wettest	Wettest since: 1929	1958
Oct 1929–Sep 1930 12-Month	31.20" (792.48mm)	43.37" (1,101.60mm)	-12.17" (-309.12mm)	2nd Driest	Driest since: 1930	1986
Oct 1929–Sep 1930 12-Month	31.20" (792.48mm)	43.37" (1,101.60mm)	-12.17" (-309.12mm)	126th Wettest	Wettest since: 1929	2003
Apr 1929–Sep 1930 18-Month	51.06" (1,296.92mm)	66.48" (1,688.59mm)	-15.42" (-391.67mm)	3rd Driest	Driest since: 1930	1966
Apr 1929–Sep 1930 18-Month	51.06" (1,296.92mm)	66.48" (1,688.59mm)	-15.42" (-391.67mm)	125th Wettest	Wettest since: 1929	2010
Oct 1928–Sep 1930 24-Month	66.69" (1,693.93mm)	86.63" (2,200.40mm)	-19.94" (-506.47mm)	2nd Driest	Driest since: 1930	1966
Oct 1928–Sep 1930 24-Month	66.69" (1,693.93mm)	86.63" (2,200.40mm)	-19.94" (-506.47mm)	125th Wettest	Wettest since: 1929	2004
Oct 1927–Sep 1930 36-Month	119.20" (3,027.68mm)	129.92" (3,299.97mm)	-10.72" (-272.29mm)	19th Driest	Driest since: 1927	1966
Oct 1927–Sep 1930 36-Month	119.20" (3,027.68mm)	129.92" (3,299.97mm)	-10.72" (-272.29mm)	107th Wettest	Wettest since: 1929	1935
Oct 1926–Sep 1930 48-Month	157.27" (3,994.66mm)	173.15" (4,398.01mm)	-15.88" (-403.35mm)	10th Driest	Driest since: 1930	1966
Oct 1926–Sep 1930 48-Month	157.27" (3,994.66mm)	173.15" (4,398.01mm)	-15.88" (-403.35mm)	115th Wettest	Wettest since: 1929	1936
Oct 1925–Sep 1930 60-Month	201.39" (5,115.31mm)	216.34" (5,495.04mm)	-14.95" (-379.73mm)	12th Driest	Driest since: 1930	1966
Oct 1925–Sep 1930 60-Month	201.39" (5,115.31mm)	216.34" (5,495.04mm)	-14.95" (-379.73mm)	112th Wettest	Wettest since: 1929	1937

Citing This Page

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