National Rankings

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Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Contiguous U.S.

Precipitation Rankings, December 1931

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
December 1931 1-Month	3.38" (85.85mm)	2.35" (59.69mm)	1.03" (26.16mm)	125th Driest	Driest since: 1930	1930
December 1931 1-Month	3.38" (85.85mm)	2.35" (59.69mm)	1.03" (26.16mm)	4th Wettest	Wettest to Date	2015
Nov–Dec 1931 2-Month	5.92" (150.37mm)	4.58" (116.33mm)	1.34" (34.04mm)	119th Driest	Driest since: 1930	1976
	5.92" (150.37mm)	4.58" (116.33mm)	1.34" (34.04mm)	10th Wettest	Wettest since: 1902	2015
	Ties: 1902
Oct–Dec 1931 3-Month	7.82" (198.63mm)	6.74" (171.20mm)	1.08" (27.43mm)	106th Driest	Driest since: 1930	1917
Oct–Dec 1931 3-Month	7.82" (198.63mm)	6.74" (171.20mm)	1.08" (27.43mm)	23rd Wettest	Wettest since: 1926	2015
Sep–Dec 1931 4-Month	9.88" (250.95mm)	9.23" (234.44mm)	0.65" (16.51mm)	88th Driest	Driest since: 1930	1939
Sep–Dec 1931 4-Month	9.88" (250.95mm)	9.23" (234.44mm)	0.65" (16.51mm)	41st Wettest	Wettest since: 1927	2018
Aug–Dec 1931 5-Month	12.60" (320.04mm)	11.85" (300.99mm)	0.75" (19.05mm)	84th Driest	Driest since: 1930	1917
Aug–Dec 1931 5-Month	12.60" (320.04mm)	11.85" (300.99mm)	0.75" (19.05mm)	45th Wettest	Wettest since: 1927	2018
Jul–Dec 1931 6-Month	15.31" (388.87mm)	14.62" (371.35mm)	0.69" (17.52mm)	84th Driest	Driest since: 1930	1917
Jul–Dec 1931 6-Month	15.31" (388.87mm)	14.62" (371.35mm)	0.69" (17.52mm)	45th Wettest	Wettest since: 1927	2018
Jun–Dec 1931 7-Month	17.45" (443.23mm)	17.55" (445.77mm)	-0.10" (-2.54mm)	54th Driest	Driest since: 1930	1917
Jun–Dec 1931 7-Month	17.45" (443.23mm)	17.55" (445.77mm)	-0.10" (-2.54mm)	75th Wettest	Wettest since: 1928	2018
May–Dec 1931 8-Month	19.74" (501.40mm)	20.46" (519.68mm)	-0.72" (-18.28mm)	37th Driest	Driest since: 1930	1917
May–Dec 1931 8-Month	19.74" (501.40mm)	20.46" (519.68mm)	-0.72" (-18.28mm)	92nd Wettest	Wettest since: 1929	2015
Apr–Dec 1931 9-Month	21.81" (553.97mm)	22.98" (583.69mm)	-1.17" (-29.72mm)	32nd Driest	Driest since: 1930	1956
Apr–Dec 1931 9-Month	21.81" (553.97mm)	22.98" (583.69mm)	-1.17" (-29.72mm)	97th Wettest	Wettest since: 1929	2015
Mar–Dec 1931 10-Month	24.12" (612.65mm)	25.49" (647.45mm)	-1.37" (-34.80mm)	32nd Driest	Driest since: 1930	1956
Mar–Dec 1931 10-Month	24.12" (612.65mm)	25.49" (647.45mm)	-1.37" (-34.80mm)	97th Wettest	Wettest since: 1929	2015
Feb–Dec 1931 11-Month	25.96" (659.38mm)	27.62" (701.55mm)	-1.66" (-42.17mm)	25th Driest	Driest since: 1930	1910
Feb–Dec 1931 11-Month	25.96" (659.38mm)	27.62" (701.55mm)	-1.66" (-42.17mm)	104th Wettest	Wettest since: 1929	2018
Jan–Dec 1931 12-Month	27.52" (699.01mm)	29.94" (760.48mm)	-2.42" (-61.47mm)	18th Driest	Driest since: 1930	1910
Jan–Dec 1931 12-Month	27.52" (699.01mm)	29.94" (760.48mm)	-2.42" (-61.47mm)	111th Wettest	Wettest since: 1929	1973
Jul 1930–Dec 1931 18-Month	39.47" (1,002.54mm)	44.58" (1,132.33mm)	-5.11" (-129.79mm)	7th Driest	Driest since: 1930	1954
	39.47" (1,002.54mm)	44.58" (1,132.33mm)	-5.11" (-129.79mm)	121st Wettest	Wettest since: 1930	2019
	Ties: 1930
Jan 1930–Dec 1931 24-Month	53.10" (1,348.74mm)	59.90" (1,521.46mm)	-6.80" (-172.72mm)	1st Driest	Driest since: 1931	1931
Jan 1930–Dec 1931 24-Month	53.10" (1,348.74mm)	59.90" (1,521.46mm)	-6.80" (-172.72mm)	127th Wettest	Wettest since: 1930	2019
Jan 1929–Dec 1931 36-Month	83.25" (2,114.55mm)	89.86" (2,282.44mm)	-6.61" (-167.89mm)	6th Driest	Driest since: 1931	1956
Jan 1929–Dec 1931 36-Month	83.25" (2,114.55mm)	89.86" (2,282.44mm)	-6.61" (-167.89mm)	121st Wettest	Wettest since: 1930	2019
Jan 1928–Dec 1931 48-Month	112.75" (2,863.85mm)	119.78" (3,042.41mm)	-7.03" (-178.56mm)	7th Driest	Driest since: 1931	1956
Jan 1928–Dec 1931 48-Month	112.75" (2,863.85mm)	119.78" (3,042.41mm)	-7.03" (-178.56mm)	119th Wettest	Wettest since: 1930	2019
Jan 1927–Dec 1931 60-Month	144.81" (3,678.17mm)	149.68" (3,801.87mm)	-4.87" (-123.70mm)	20th Driest	Driest since: 1925	1956
Jan 1927–Dec 1931 60-Month	144.81" (3,678.17mm)	149.68" (3,801.87mm)	-4.87" (-123.70mm)	105th Wettest	Wettest since: 1930	2019

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published January 2023, retrieved on February 2, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings