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 1939

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
August 1939 1-Month	7.84" (199.14mm)	4.59" (116.59mm)	3.25" (82.55mm)	114th Driest	Driest since: 1938	2008
	7.84" (199.14mm)	4.59" (116.59mm)	3.25" (82.55mm)	15th Wettest	Wettest since: 1937	1967
	Ties: 1915
Jul–Aug 1939 2-Month	11.08" (281.43mm)	8.90" (226.06mm)	2.18" (55.37mm)	96th Driest	Driest since: 1936	1966
Jul–Aug 1939 2-Month	11.08" (281.43mm)	8.90" (226.06mm)	2.18" (55.37mm)	33rd Wettest	Wettest since: 1938	1919
Jun–Aug 1939 3-Month	14.44" (366.78mm)	12.54" (318.52mm)	1.90" (48.26mm)	89th Driest	Driest since: 1936	1966
Jun–Aug 1939 3-Month	14.44" (366.78mm)	12.54" (318.52mm)	1.90" (48.26mm)	40th Wettest	Wettest since: 1938	2013
May–Aug 1939 4-Month	15.17" (385.32mm)	16.10" (408.94mm)	-0.93" (-23.62mm)	54th Driest	Driest since: 1936	1964
May–Aug 1939 4-Month	15.17" (385.32mm)	16.10" (408.94mm)	-0.93" (-23.62mm)	75th Wettest	Wettest since: 1938	1919
Apr–Aug 1939 5-Month	20.93" (531.62mm)	19.58" (497.33mm)	1.35" (34.29mm)	79th Driest	Driest since: 1936	1957
Apr–Aug 1939 5-Month	20.93" (531.62mm)	19.58" (497.33mm)	1.35" (34.29mm)	50th Wettest	Wettest since: 1938	1919
Mar–Aug 1939 6-Month	26.16" (664.46mm)	23.55" (598.17mm)	2.61" (66.29mm)	91st Driest	Driest since: 1936	1930
Mar–Aug 1939 6-Month	26.16" (664.46mm)	23.55" (598.17mm)	2.61" (66.29mm)	38th Wettest	Wettest since: 1938	1989
Feb–Aug 1939 7-Month	31.65" (803.91mm)	26.60" (675.64mm)	5.05" (128.27mm)	107th Driest	Driest since: 1938	1930
Feb–Aug 1939 7-Month	31.65" (803.91mm)	26.60" (675.64mm)	5.05" (128.27mm)	22nd Wettest	Wettest since: 1933	1958
Jan–Aug 1939 8-Month	35.41" (899.41mm)	30.09" (764.29mm)	5.32" (135.12mm)	110th Driest	Driest since: 1938	1930
Jan–Aug 1939 8-Month	35.41" (899.41mm)	30.09" (764.29mm)	5.32" (135.12mm)	19th Wettest	Wettest since: 1937	1958
Dec 1938–Aug 1939 9-Month	38.20" (970.28mm)	33.55" (852.17mm)	4.65" (118.11mm)	102nd Driest	Driest since: 1938	1930
Dec 1938–Aug 1939 9-Month	38.20" (970.28mm)	33.55" (852.17mm)	4.65" (118.11mm)	26th Wettest	Wettest since: 1937	1958
Nov 1938–Aug 1939 10-Month	41.46" (1,053.08mm)	36.62" (930.15mm)	4.84" (122.93mm)	99th Driest	Driest since: 1938	1977
Nov 1938–Aug 1939 10-Month	41.46" (1,053.08mm)	36.62" (930.15mm)	4.84" (122.93mm)	29th Wettest	Wettest since: 1937	1958
Oct 1938–Aug 1939 11-Month	43.98" (1,117.09mm)	39.77" (1,010.16mm)	4.21" (106.93mm)	94th Driest	Driest since: 1936	1966
Oct 1938–Aug 1939 11-Month	43.98" (1,117.09mm)	39.77" (1,010.16mm)	4.21" (106.93mm)	34th Wettest	Wettest since: 1938	1958
Sep 1938–Aug 1939 12-Month	51.83" (1,316.48mm)	43.36" (1,101.34mm)	8.47" (215.14mm)	107th Driest	Driest since: 1938	1966
Sep 1938–Aug 1939 12-Month	51.83" (1,316.48mm)	43.36" (1,101.34mm)	8.47" (215.14mm)	21st Wettest	Wettest since: 1937	1958
Mar 1938–Aug 1939 18-Month	79.19" (2,011.43mm)	66.82" (1,697.23mm)	12.37" (314.20mm)	118th Driest	Driest since: 1938	1966
Mar 1938–Aug 1939 18-Month	79.19" (2,011.43mm)	66.82" (1,697.23mm)	12.37" (314.20mm)	10th Wettest	Wettest since: 1936	1984
Sep 1937–Aug 1939 24-Month	98.08" (2,491.23mm)	86.56" (2,198.62mm)	11.52" (292.61mm)	104th Driest	Driest since: 1935	1966
Sep 1937–Aug 1939 24-Month	98.08" (2,491.23mm)	86.56" (2,198.62mm)	11.52" (292.61mm)	23rd Wettest	Wettest since: 1938	2004
Sep 1936–Aug 1939 36-Month	151.31" (3,843.27mm)	129.84" (3,297.94mm)	21.47" (545.33mm)	121st Driest	Driest since: 1936	1966
Sep 1936–Aug 1939 36-Month	151.31" (3,843.27mm)	129.84" (3,297.94mm)	21.47" (545.33mm)	5th Wettest	Wettest since: 1938	2005
Sep 1935–Aug 1939 48-Month	206.81" (5,252.97mm)	173.06" (4,395.72mm)	33.75" (857.25mm)	124th Driest	Driest since: 1938	1966
Sep 1935–Aug 1939 48-Month	206.81" (5,252.97mm)	173.06" (4,395.72mm)	33.75" (857.25mm)	1st Wettest	Wettest to Date	1939
Sep 1934–Aug 1939 60-Month	254.09" (6,453.89mm)	216.24" (5,492.50mm)	37.85" (961.39mm)	122nd Driest	Driest since: 1938	1966
Sep 1934–Aug 1939 60-Month	254.09" (6,453.89mm)	216.24" (5,492.50mm)	37.85" (961.39mm)	2nd Wettest	Wettest since: 1937	1937

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on February 8, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings