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 1929

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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 1929 1-Month	2.21" (56.13mm)	2.35" (59.69mm)	-0.14" (-3.56mm)	47th Driest	Driest since: 1928	1930
	2.21" (56.13mm)	2.35" (59.69mm)	-0.14" (-3.56mm)	82nd Wettest	Wettest since: 1927	2015
	Ties: 2013
Nov–Dec 1929 2-Month	4.17" (105.92mm)	4.58" (116.33mm)	-0.41" (-10.41mm)	41st Driest	Driest since: 1928	1976
Nov–Dec 1929 2-Month	4.17" (105.92mm)	4.58" (116.33mm)	-0.41" (-10.41mm)	88th Wettest	Wettest since: 1927	2015
Oct–Dec 1929 3-Month	6.77" (171.96mm)	6.74" (171.20mm)	0.03" (0.76mm)	61st Driest	Driest since: 1928	1917
Oct–Dec 1929 3-Month	6.77" (171.96mm)	6.74" (171.20mm)	0.03" (0.76mm)	68th Wettest	Wettest since: 1927	2015
Sep–Dec 1929 4-Month	9.52" (241.81mm)	9.23" (234.44mm)	0.29" (7.37mm)	74th Driest	Driest since: 1928	1939
	9.52" (241.81mm)	9.23" (234.44mm)	0.29" (7.37mm)	55th Wettest	Wettest since: 1927	2018
	Ties: 1940
Aug–Dec 1929 5-Month	11.32" (287.53mm)	11.85" (300.99mm)	-0.53" (-13.46mm)	39th Driest	Driest since: 1924	1917
Aug–Dec 1929 5-Month	11.32" (287.53mm)	11.85" (300.99mm)	-0.53" (-13.46mm)	90th Wettest	Wettest since: 1928	2018
Jul–Dec 1929 6-Month	13.89" (352.81mm)	14.62" (371.35mm)	-0.73" (-18.54mm)	35th Driest	Driest since: 1924	1917
Jul–Dec 1929 6-Month	13.89" (352.81mm)	14.62" (371.35mm)	-0.73" (-18.54mm)	94th Wettest	Wettest since: 1928	2018
Jun–Dec 1929 7-Month	16.52" (419.61mm)	17.55" (445.77mm)	-1.03" (-26.16mm)	32nd Driest	Driest since: 1924	1917
Jun–Dec 1929 7-Month	16.52" (419.61mm)	17.55" (445.77mm)	-1.03" (-26.16mm)	97th Wettest	Wettest since: 1928	2018
May–Dec 1929 8-Month	20.03" (508.76mm)	20.46" (519.68mm)	-0.43" (-10.92mm)	45th Driest	Driest since: 1925	1917
	20.03" (508.76mm)	20.46" (519.68mm)	-0.43" (-10.92mm)	84th Wettest	Wettest since: 1928	2015
	Ties: 1913
Apr–Dec 1929 9-Month	22.96" (583.18mm)	22.98" (583.69mm)	-0.02" (-0.51mm)	54th Driest	Driest since: 1925	1956
Apr–Dec 1929 9-Month	22.96" (583.18mm)	22.98" (583.69mm)	-0.02" (-0.51mm)	75th Wettest	Wettest since: 1928	2015
Mar–Dec 1929 10-Month	25.77" (654.56mm)	25.49" (647.45mm)	0.28" (7.11mm)	64th Driest	Driest since: 1925	1956
Mar–Dec 1929 10-Month	25.77" (654.56mm)	25.49" (647.45mm)	0.28" (7.11mm)	65th Wettest	Wettest since: 1928	2015
Feb–Dec 1929 11-Month	27.79" (705.87mm)	27.62" (701.55mm)	0.17" (4.32mm)	63rd Driest	Driest since: 1925	1910
Feb–Dec 1929 11-Month	27.79" (705.87mm)	27.62" (701.55mm)	0.17" (4.32mm)	66th Wettest	Wettest since: 1928	2018
Jan–Dec 1929 12-Month	30.15" (765.81mm)	29.94" (760.48mm)	0.21" (5.33mm)	62nd Driest	Driest since: 1928	1910
Jan–Dec 1929 12-Month	30.15" (765.81mm)	29.94" (760.48mm)	0.21" (5.33mm)	67th Wettest	Wettest since: 1927	1973
Jul 1928–Dec 1929 18-Month	44.60" (1,132.84mm)	44.58" (1,132.33mm)	0.02" (0.51mm)	57th Driest	Driest since: 1925	1954
Jul 1928–Dec 1929 18-Month	44.60" (1,132.84mm)	44.58" (1,132.33mm)	0.02" (0.51mm)	71st Wettest	Wettest since: 1928	2019
Jan 1928–Dec 1929 24-Month	59.65" (1,515.11mm)	59.90" (1,521.46mm)	-0.25" (-6.35mm)	54th Driest	Driest since: 1926	1931
Jan 1928–Dec 1929 24-Month	59.65" (1,515.11mm)	59.90" (1,521.46mm)	-0.25" (-6.35mm)	74th Wettest	Wettest since: 1928	2019
Jan 1927–Dec 1929 36-Month	91.71" (2,329.43mm)	89.86" (2,282.44mm)	1.85" (46.99mm)	81st Driest	Driest since: 1927	1956
Jan 1927–Dec 1929 36-Month	91.71" (2,329.43mm)	89.86" (2,282.44mm)	1.85" (46.99mm)	46th Wettest	Wettest since: 1928	2019
Jan 1926–Dec 1929 48-Month	122.65" (3,115.31mm)	119.78" (3,042.41mm)	2.87" (72.90mm)	88th Driest	Driest since: 1928	1956
Jan 1926–Dec 1929 48-Month	122.65" (3,115.31mm)	119.78" (3,042.41mm)	2.87" (72.90mm)	38th Wettest	Wettest since: 1909	2019
Jan 1925–Dec 1929 60-Month	149.61" (3,800.09mm)	149.68" (3,801.87mm)	-0.07" (-1.78mm)	59th Driest	Driest since: 1928	1956
Jan 1925–Dec 1929 60-Month	149.61" (3,800.09mm)	149.68" (3,801.87mm)	-0.07" (-1.78mm)	66th Wettest	Wettest since: 1923	2019

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published May 2023, retrieved on June 5, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings