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 1984

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
October 1984 1-Month	3.65" (92.71mm)	2.16" (54.86mm)	1.49" (37.85mm)	126th Driest	Driest since: 1983	1952
October 1984 1-Month	3.65" (92.71mm)	2.16" (54.86mm)	1.49" (37.85mm)	3rd Wettest	Wettest since: 1941	2009
Sep–Oct 1984 2-Month	5.56" (141.22mm)	4.65" (118.11mm)	0.91" (23.11mm)	109th Driest	Driest since: 1983	1952
	5.56" (141.22mm)	4.65" (118.11mm)	0.91" (23.11mm)	20th Wettest	Wettest since: 1973	2018
	Ties: 1971
Aug–Oct 1984 3-Month	7.99" (202.95mm)	7.27" (184.66mm)	0.72" (18.29mm)	99th Driest	Driest since: 1983	1952
Aug–Oct 1984 3-Month	7.99" (202.95mm)	7.27" (184.66mm)	0.72" (18.29mm)	30th Wettest	Wettest since: 1977	2018
Jul–Oct 1984 4-Month	10.82" (274.83mm)	10.05" (255.27mm)	0.77" (19.56mm)	98th Driest	Driest since: 1983	1952
Jul–Oct 1984 4-Month	10.82" (274.83mm)	10.05" (255.27mm)	0.77" (19.56mm)	31st Wettest	Wettest since: 1981	1941
Jun–Oct 1984 5-Month	13.75" (349.25mm)	12.97" (329.44mm)	0.78" (19.81mm)	85th Driest	Driest since: 1983	1952
	13.75" (349.25mm)	12.97" (329.44mm)	0.78" (19.81mm)	44th Wettest	Wettest since: 1981	1941
	Ties: 1965
May–Oct 1984 6-Month	16.90" (429.26mm)	15.88" (403.35mm)	1.02" (25.91mm)	93rd Driest	Driest since: 1983	1952
	16.90" (429.26mm)	15.88" (403.35mm)	1.02" (25.91mm)	36th Wettest	Wettest since: 1982	1941
	Ties: 1908
Apr–Oct 1984 7-Month	19.85" (504.19mm)	18.40" (467.36mm)	1.45" (36.83mm)	99th Driest	Driest since: 1983	1952
Apr–Oct 1984 7-Month	19.85" (504.19mm)	18.40" (467.36mm)	1.45" (36.83mm)	30th Wettest	Wettest since: 1981	1941
Mar–Oct 1984 8-Month	22.60" (574.04mm)	20.91" (531.11mm)	1.69" (42.93mm)	106th Driest	Driest since: 1982	1956
	22.60" (574.04mm)	20.91" (531.11mm)	1.69" (42.93mm)	23rd Wettest	Wettest since: 1983	2019
	Ties: 1919, 2021
Feb–Oct 1984 9-Month	24.71" (627.63mm)	23.04" (585.22mm)	1.67" (42.41mm)	101st Driest	Driest since: 1982	1934
Feb–Oct 1984 9-Month	24.71" (627.63mm)	23.04" (585.22mm)	1.67" (42.41mm)	28th Wettest	Wettest since: 1983	2019
Jan–Oct 1984 10-Month	26.06" (661.92mm)	25.36" (644.14mm)	0.70" (17.78mm)	82nd Driest	Driest since: 1981	1934
Jan–Oct 1984 10-Month	26.06" (661.92mm)	25.36" (644.14mm)	0.70" (17.78mm)	47th Wettest	Wettest since: 1983	2019
Dec 1983–Oct 1984 11-Month	29.50" (749.30mm)	27.70" (703.58mm)	1.80" (45.72mm)	98th Driest	Driest since: 1981	1931
Dec 1983–Oct 1984 11-Month	29.50" (749.30mm)	27.70" (703.58mm)	1.80" (45.72mm)	30th Wettest	Wettest since: 1983	2019
Nov 1983–Oct 1984 12-Month	33.42" (848.87mm)	29.93" (760.22mm)	3.49" (88.65mm)	117th Driest	Driest since: 1982	1934
Nov 1983–Oct 1984 12-Month	33.42" (848.87mm)	29.93" (760.22mm)	3.49" (88.65mm)	11th Wettest	Wettest since: 1983	2019
May 1983–Oct 1984 18-Month	49.16" (1,248.66mm)	45.83" (1,164.08mm)	3.33" (84.58mm)	106th Driest	Driest since: 1981	1931
	49.16" (1,248.66mm)	45.83" (1,164.08mm)	3.33" (84.58mm)	22nd Wettest	Wettest since: 1983	2019
	Ties: 2015
Nov 1982–Oct 1984 24-Month	67.57" (1,716.28mm)	59.90" (1,521.46mm)	7.67" (194.82mm)	124th Driest	Driest since: 1983	1931
Nov 1982–Oct 1984 24-Month	67.57" (1,716.28mm)	59.90" (1,521.46mm)	7.67" (194.82mm)	3rd Wettest	Wettest to Date	2019
Nov 1981–Oct 1984 36-Month	99.10" (2,517.14mm)	89.86" (2,282.44mm)	9.24" (234.70mm)	120th Driest	Driest since: 1983	1956
Nov 1981–Oct 1984 36-Month	99.10" (2,517.14mm)	89.86" (2,282.44mm)	9.24" (234.70mm)	6th Wettest	Wettest since: 1975	2019
Nov 1980–Oct 1984 48-Month	127.97" (3,250.44mm)	119.78" (3,042.41mm)	8.19" (208.03mm)	111th Driest	Driest since: 1983	1956
Nov 1980–Oct 1984 48-Month	127.97" (3,250.44mm)	119.78" (3,042.41mm)	8.19" (208.03mm)	14th Wettest	Wettest since: 1976	2019
Nov 1979–Oct 1984 60-Month	157.11" (3,990.59mm)	149.66" (3,801.36mm)	7.45" (189.23mm)	105th Driest	Driest since: 1982	1934
Nov 1979–Oct 1984 60-Month	157.11" (3,990.59mm)	149.66" (3,801.36mm)	7.45" (189.23mm)	19th Wettest	Wettest since: 1983	2019

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published November 2022, retrieved on November 28, 2022 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings