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 1921

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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
December 1921 1-Month	2.24" (56.90mm)	2.35" (59.69mm)	-0.11" (-2.79mm)	52nd Driest	Driest since: 1919	1930
	2.24" (56.90mm)	2.35" (59.69mm)	-0.11" (-2.79mm)	77th Wettest	Wettest since: 1920	2015
	Ties: 1955
Nov–Dec 1921 2-Month	4.65" (118.11mm)	4.58" (116.33mm)	0.07" (1.78mm)	67th Driest	Driest since: 1919	1976
Nov–Dec 1921 2-Month	4.65" (118.11mm)	4.58" (116.33mm)	0.07" (1.78mm)	62nd Wettest	Wettest since: 1920	2015
Oct–Dec 1921 3-Month	6.11" (155.19mm)	6.74" (171.20mm)	-0.63" (-16.01mm)	33rd Driest	Driest since: 1917	1917
Oct–Dec 1921 3-Month	6.11" (155.19mm)	6.74" (171.20mm)	-0.63" (-16.01mm)	96th Wettest	Wettest since: 1920	2015
Sep–Dec 1921 4-Month	8.68" (220.47mm)	9.23" (234.44mm)	-0.55" (-13.97mm)	39th Driest	Driest since: 1917	1939
	8.68" (220.47mm)	9.23" (234.44mm)	-0.55" (-13.97mm)	90th Wettest	Wettest since: 1920	2018
	Ties: 1978
Aug–Dec 1921 5-Month	11.28" (286.51mm)	11.85" (300.99mm)	-0.57" (-14.48mm)	37th Driest	Driest since: 1917	1917
Aug–Dec 1921 5-Month	11.28" (286.51mm)	11.85" (300.99mm)	-0.57" (-14.48mm)	92nd Wettest	Wettest since: 1920	2018
Jul–Dec 1921 6-Month	14.14" (359.16mm)	14.62" (371.35mm)	-0.48" (-12.19mm)	41st Driest	Driest since: 1917	1917
	14.14" (359.16mm)	14.62" (371.35mm)	-0.48" (-12.19mm)	88th Wettest	Wettest since: 1920	2018
	Ties: 1958
Jun–Dec 1921 7-Month	17.04" (432.82mm)	17.55" (445.77mm)	-0.51" (-12.95mm)	44th Driest	Driest since: 1917	1917
Jun–Dec 1921 7-Month	17.04" (432.82mm)	17.55" (445.77mm)	-0.51" (-12.95mm)	85th Wettest	Wettest since: 1920	2018
May–Dec 1921 8-Month	19.59" (497.59mm)	20.46" (519.68mm)	-0.87" (-22.09mm)	32nd Driest	Driest since: 1917	1917
	19.59" (497.59mm)	20.46" (519.68mm)	-0.87" (-22.09mm)	97th Wettest	Wettest since: 1920	2015
	Ties: 1962
Apr–Dec 1921 9-Month	22.38" (568.45mm)	22.98" (583.69mm)	-0.60" (-15.24mm)	41st Driest	Driest since: 1917	1956
	22.38" (568.45mm)	22.98" (583.69mm)	-0.60" (-15.24mm)	88th Wettest	Wettest since: 1920	2015
	Ties: 1914
Mar–Dec 1921 10-Month	24.90" (632.46mm)	25.49" (647.45mm)	-0.59" (-14.99mm)	39th Driest	Driest since: 1918	1956
Mar–Dec 1921 10-Month	24.90" (632.46mm)	25.49" (647.45mm)	-0.59" (-14.99mm)	90th Wettest	Wettest since: 1920	2015
Feb–Dec 1921 11-Month	26.67" (677.42mm)	27.62" (701.55mm)	-0.95" (-24.13mm)	34th Driest	Driest since: 1918	1910
Feb–Dec 1921 11-Month	26.67" (677.42mm)	27.62" (701.55mm)	-0.95" (-24.13mm)	95th Wettest	Wettest since: 1920	2018
Jan–Dec 1921 12-Month	28.78" (731.01mm)	29.94" (760.48mm)	-1.16" (-29.47mm)	32nd Driest	Driest since: 1918	1910
	28.78" (731.01mm)	29.94" (760.48mm)	-1.16" (-29.47mm)	97th Wettest	Wettest since: 1920	1973
	Ties: 1918
Jul 1920–Dec 1921 18-Month	44.50" (1,130.30mm)	44.58" (1,132.33mm)	-0.08" (-2.03mm)	56th Driest	Driest since: 1918	1954
Jul 1920–Dec 1921 18-Month	44.50" (1,130.30mm)	44.58" (1,132.33mm)	-0.08" (-2.03mm)	72nd Wettest	Wettest since: 1920	2019
Jan 1920–Dec 1921 24-Month	60.08" (1,526.03mm)	59.90" (1,521.46mm)	0.18" (4.57mm)	64th Driest	Driest since: 1918	1931
Jan 1920–Dec 1921 24-Month	60.08" (1,526.03mm)	59.90" (1,521.46mm)	0.18" (4.57mm)	64th Wettest	Wettest since: 1920	2019
Jan 1919–Dec 1921 36-Month	91.84" (2,332.74mm)	89.86" (2,282.44mm)	1.98" (50.30mm)	84th Driest	Driest since: 1920	1956
	91.84" (2,332.74mm)	89.86" (2,282.44mm)	1.98" (50.30mm)	43rd Wettest	Wettest since: 1920	2019
	Ties: 1920
Jan 1918–Dec 1921 48-Month	120.62" (3,063.75mm)	119.78" (3,042.41mm)	0.84" (21.34mm)	65th Driest	Driest since: 1920	1956
Jan 1918–Dec 1921 48-Month	120.62" (3,063.75mm)	119.78" (3,042.41mm)	0.84" (21.34mm)	61st Wettest	Wettest since: 1916	2019
Jan 1917–Dec 1921 60-Month	145.97" (3,707.64mm)	149.68" (3,801.87mm)	-3.71" (-94.23mm)	29th Driest	Driest since: 1918	1956
Jan 1917–Dec 1921 60-Month	145.97" (3,707.64mm)	149.68" (3,801.87mm)	-3.71" (-94.23mm)	96th Wettest	Wettest since: 1920	2019

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published March 2023, retrieved on March 26, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings