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, August 1931

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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
August 1931 1-Month	8.75" (222.25mm)	4.59" (116.59mm)	4.16" (105.66mm)	119th Driest	Driest since: 1930	2008
August 1931 1-Month	8.75" (222.25mm)	4.59" (116.59mm)	4.16" (105.66mm)	10th Wettest	Wettest since: 1928	1967
Jul–Aug 1931 2-Month	12.08" (306.83mm)	8.90" (226.06mm)	3.18" (80.77mm)	106th Driest	Driest since: 1930	1966
Jul–Aug 1931 2-Month	12.08" (306.83mm)	8.90" (226.06mm)	3.18" (80.77mm)	23rd Wettest	Wettest since: 1928	1919
Jun–Aug 1931 3-Month	15.74" (399.80mm)	12.54" (318.52mm)	3.20" (81.28mm)	100th Driest	Driest since: 1930	1966
Jun–Aug 1931 3-Month	15.74" (399.80mm)	12.54" (318.52mm)	3.20" (81.28mm)	29th Wettest	Wettest since: 1928	2013
May–Aug 1931 4-Month	19.41" (493.01mm)	16.10" (408.94mm)	3.31" (84.07mm)	102nd Driest	Driest since: 1930	1964
May–Aug 1931 4-Month	19.41" (493.01mm)	16.10" (408.94mm)	3.31" (84.07mm)	27th Wettest	Wettest since: 1928	1919
Apr–Aug 1931 5-Month	22.31" (566.67mm)	19.58" (497.33mm)	2.73" (69.34mm)	97th Driest	Driest since: 1930	1957
Apr–Aug 1931 5-Month	22.31" (566.67mm)	19.58" (497.33mm)	2.73" (69.34mm)	32nd Wettest	Wettest since: 1928	1919
Mar–Aug 1931 6-Month	27.29" (693.17mm)	23.55" (598.17mm)	3.74" (95.00mm)	97th Driest	Driest since: 1930	1930
Mar–Aug 1931 6-Month	27.29" (693.17mm)	23.55" (598.17mm)	3.74" (95.00mm)	32nd Wettest	Wettest since: 1928	1989
Feb–Aug 1931 7-Month	28.80" (731.52mm)	26.60" (675.64mm)	2.20" (55.88mm)	85th Driest	Driest since: 1930	1930
Feb–Aug 1931 7-Month	28.80" (731.52mm)	26.60" (675.64mm)	2.20" (55.88mm)	44th Wettest	Wettest since: 1928	1958
Jan–Aug 1931 8-Month	30.68" (779.27mm)	30.09" (764.29mm)	0.59" (14.98mm)	75th Driest	Driest since: 1930	1930
Jan–Aug 1931 8-Month	30.68" (779.27mm)	30.09" (764.29mm)	0.59" (14.98mm)	54th Wettest	Wettest since: 1928	1958
Dec 1930–Aug 1931 9-Month	32.75" (831.85mm)	33.55" (852.17mm)	-0.80" (-20.32mm)	54th Driest	Driest since: 1930	1930
Dec 1930–Aug 1931 9-Month	32.75" (831.85mm)	33.55" (852.17mm)	-0.80" (-20.32mm)	74th Wettest	Wettest since: 1928	1958
Nov 1930–Aug 1931 10-Month	34.64" (879.86mm)	36.62" (930.15mm)	-1.98" (-50.29mm)	49th Driest	Driest since: 1930	1977
Nov 1930–Aug 1931 10-Month	34.64" (879.86mm)	36.62" (930.15mm)	-1.98" (-50.29mm)	79th Wettest	Wettest since: 1928	1958
Oct 1930–Aug 1931 11-Month	36.11" (917.19mm)	39.77" (1,010.16mm)	-3.66" (-92.97mm)	34th Driest	Driest since: 1930	1966
Oct 1930–Aug 1931 11-Month	36.11" (917.19mm)	39.77" (1,010.16mm)	-3.66" (-92.97mm)	94th Wettest	Wettest since: 1928	1958
Sep 1930–Aug 1931 12-Month	38.43" (976.12mm)	43.36" (1,101.34mm)	-4.93" (-125.22mm)	31st Driest	Driest since: 1930	1966
Sep 1930–Aug 1931 12-Month	38.43" (976.12mm)	43.36" (1,101.34mm)	-4.93" (-125.22mm)	97th Wettest	Wettest since: 1928	1958
Mar 1930–Aug 1931 18-Month	52.62" (1,336.55mm)	66.82" (1,697.23mm)	-14.20" (-360.68mm)	5th Driest	Driest since: 1930	1966
Mar 1930–Aug 1931 18-Month	52.62" (1,336.55mm)	66.82" (1,697.23mm)	-14.20" (-360.68mm)	123rd Wettest	Wettest since: 1929	1984
Sep 1929–Aug 1931 24-Month	71.07" (1,805.18mm)	86.56" (2,198.62mm)	-15.49" (-393.44mm)	4th Driest	Driest since: 1930	1966
Sep 1929–Aug 1931 24-Month	71.07" (1,805.18mm)	86.56" (2,198.62mm)	-15.49" (-393.44mm)	123rd Wettest	Wettest since: 1929	2004
Sep 1928–Aug 1931 36-Month	109.39" (2,778.51mm)	129.84" (3,297.94mm)	-20.45" (-519.43mm)	5th Driest	Driest to Date	1966
Sep 1928–Aug 1931 36-Month	109.39" (2,778.51mm)	129.84" (3,297.94mm)	-20.45" (-519.43mm)	121st Wettest	Wettest since: 1930	2005
Sep 1927–Aug 1931 48-Month	156.75" (3,981.45mm)	173.06" (4,395.72mm)	-16.31" (-414.27mm)	11th Driest	Driest to Date	1966
Sep 1927–Aug 1931 48-Month	156.75" (3,981.45mm)	173.06" (4,395.72mm)	-16.31" (-414.27mm)	114th Wettest	Wettest since: 1930	1939
Sep 1926–Aug 1931 60-Month	197.30" (5,011.42mm)	216.24" (5,492.50mm)	-18.94" (-481.08mm)	8th Driest	Driest to Date	1966
Sep 1926–Aug 1931 60-Month	197.30" (5,011.42mm)	216.24" (5,492.50mm)	-18.94" (-481.08mm)	116th Wettest	Wettest since: 1930	1937

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on April 1, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings