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, October 1929

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
October 1929 1-Month	2.60" (66.04mm)	2.16" (54.86mm)	0.44" (11.18mm)	96th Driest	Driest since: 1928	1952
	2.60" (66.04mm)	2.16" (54.86mm)	0.44" (11.18mm)	33rd Wettest	Wettest since: 1925	2009
	Ties: 2017
Sep–Oct 1929 2-Month	5.35" (135.89mm)	4.65" (118.11mm)	0.70" (17.78mm)	99th Driest	Driest since: 1928	1952
Sep–Oct 1929 2-Month	5.35" (135.89mm)	4.65" (118.11mm)	0.70" (17.78mm)	30th Wettest	Wettest since: 1926	2018
Aug–Oct 1929 3-Month	7.15" (181.61mm)	7.27" (184.66mm)	-0.12" (-3.05mm)	51st Driest	Driest since: 1924	1952
	7.15" (181.61mm)	7.27" (184.66mm)	-0.12" (-3.05mm)	78th Wettest	Wettest since: 1928	2018
	Ties: 1962
Jul–Oct 1929 4-Month	9.72" (246.89mm)	10.05" (255.27mm)	-0.33" (-8.38mm)	43rd Driest	Driest since: 1924	1952
Jul–Oct 1929 4-Month	9.72" (246.89mm)	10.05" (255.27mm)	-0.33" (-8.38mm)	86th Wettest	Wettest since: 1928	1941
Jun–Oct 1929 5-Month	12.35" (313.69mm)	12.97" (329.44mm)	-0.62" (-15.75mm)	38th Driest	Driest since: 1924	1952
Jun–Oct 1929 5-Month	12.35" (313.69mm)	12.97" (329.44mm)	-0.62" (-15.75mm)	91st Wettest	Wettest since: 1928	1941
May–Oct 1929 6-Month	15.86" (402.84mm)	15.88" (403.35mm)	-0.02" (-0.51mm)	56th Driest	Driest since: 1925	1952
May–Oct 1929 6-Month	15.86" (402.84mm)	15.88" (403.35mm)	-0.02" (-0.51mm)	73rd Wettest	Wettest since: 1928	1941
Apr–Oct 1929 7-Month	18.79" (477.27mm)	18.40" (467.36mm)	0.39" (9.91mm)	67th Driest	Driest since: 1926	1952
Apr–Oct 1929 7-Month	18.79" (477.27mm)	18.40" (467.36mm)	0.39" (9.91mm)	62nd Wettest	Wettest since: 1928	1941
Mar–Oct 1929 8-Month	21.60" (548.64mm)	20.91" (531.11mm)	0.69" (17.53mm)	79th Driest	Driest since: 1926	1956
Mar–Oct 1929 8-Month	21.60" (548.64mm)	20.91" (531.11mm)	0.69" (17.53mm)	50th Wettest	Wettest since: 1928	2019
Feb–Oct 1929 9-Month	23.62" (599.95mm)	23.04" (585.22mm)	0.58" (14.73mm)	75th Driest	Driest since: 1926	1934
Feb–Oct 1929 9-Month	23.62" (599.95mm)	23.04" (585.22mm)	0.58" (14.73mm)	54th Wettest	Wettest since: 1928	2019
Jan–Oct 1929 10-Month	25.98" (659.89mm)	25.36" (644.14mm)	0.62" (15.75mm)	78th Driest	Driest since: 1928	1934
	25.98" (659.89mm)	25.36" (644.14mm)	0.62" (15.75mm)	51st Wettest	Wettest since: 1927	2019
	Ties: 1942, 1989
Dec 1928–Oct 1929 11-Month	27.72" (704.09mm)	27.70" (703.58mm)	0.02" (0.51mm)	60th Driest	Driest since: 1926	1931
Dec 1928–Oct 1929 11-Month	27.72" (704.09mm)	27.70" (703.58mm)	0.02" (0.51mm)	68th Wettest	Wettest since: 1928	2019
Nov 1928–Oct 1929 12-Month	29.87" (758.70mm)	29.93" (760.22mm)	-0.06" (-1.52mm)	58th Driest	Driest since: 1926	1934
Nov 1928–Oct 1929 12-Month	29.87" (758.70mm)	29.93" (760.22mm)	-0.06" (-1.52mm)	70th Wettest	Wettest since: 1928	2019
May 1928–Oct 1929 18-Month	47.05" (1,195.07mm)	45.83" (1,164.08mm)	1.22" (30.99mm)	79th Driest	Driest since: 1926	1931
May 1928–Oct 1929 18-Month	47.05" (1,195.07mm)	45.83" (1,164.08mm)	1.22" (30.99mm)	49th Wettest	Wettest since: 1928	2019
Nov 1927–Oct 1929 24-Month	60.91" (1,547.11mm)	59.90" (1,521.46mm)	1.01" (25.65mm)	74th Driest	Driest since: 1926	1931
Nov 1927–Oct 1929 24-Month	60.91" (1,547.11mm)	59.90" (1,521.46mm)	1.01" (25.65mm)	53rd Wettest	Wettest since: 1928	2019
Nov 1926–Oct 1929 36-Month	93.08" (2,364.23mm)	89.86" (2,282.44mm)	3.22" (81.79mm)	93rd Driest	Driest since: 1928	1956
Nov 1926–Oct 1929 36-Month	93.08" (2,364.23mm)	89.86" (2,282.44mm)	3.22" (81.79mm)	33rd Wettest	Wettest since: 1908	2019
Nov 1925–Oct 1929 48-Month	122.30" (3,106.42mm)	119.78" (3,042.41mm)	2.52" (64.01mm)	82nd Driest	Driest since: 1928	1956
Nov 1925–Oct 1929 48-Month	122.30" (3,106.42mm)	119.78" (3,042.41mm)	2.52" (64.01mm)	43rd Wettest	Wettest since: 1909	2019
Nov 1924–Oct 1929 60-Month	149.43" (3,795.52mm)	149.66" (3,801.36mm)	-0.23" (-5.84mm)	58th Driest	Driest since: 1928	1934
Nov 1924–Oct 1929 60-Month	149.43" (3,795.52mm)	149.66" (3,801.36mm)	-0.23" (-5.84mm)	66th Wettest	Wettest since: 1923	2019

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published January 2023, retrieved on February 7, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings