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, May 1984

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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
May 1984 1-Month	3.15" (80.01mm)	2.91" (73.91mm)	0.24" (6.10mm)	86th Driest	Driest since: 1980	1934
May 1984 1-Month	3.15" (80.01mm)	2.91" (73.91mm)	0.24" (6.10mm)	43rd Wettest	Wettest since: 1983	2019
Apr–May 1984 2-Month	6.10" (154.94mm)	5.43" (137.92mm)	0.67" (17.02mm)	104th Driest	Driest since: 1982	1934
Apr–May 1984 2-Month	6.10" (154.94mm)	5.43" (137.92mm)	0.67" (17.02mm)	25th Wettest	Wettest since: 1983	1957
Mar–May 1984 3-Month	8.85" (224.79mm)	7.94" (201.68mm)	0.91" (23.11mm)	104th Driest	Driest since: 1982	1925
Mar–May 1984 3-Month	8.85" (224.79mm)	7.94" (201.68mm)	0.91" (23.11mm)	25th Wettest	Wettest since: 1983	1957, 1991
Feb–May 1984 4-Month	10.96" (278.38mm)	10.07" (255.78mm)	0.89" (22.60mm)	104th Driest	Driest since: 1982	1925
	10.96" (278.38mm)	10.07" (255.78mm)	0.89" (22.60mm)	25th Wettest	Wettest since: 1983	2019
	Ties: 1919
Jan–May 1984 5-Month	12.31" (312.67mm)	12.39" (314.71mm)	-0.08" (-2.04mm)	63rd Driest	Driest since: 1981	1934
Jan–May 1984 5-Month	12.31" (312.67mm)	12.39" (314.71mm)	-0.08" (-2.04mm)	66th Wettest	Wettest since: 1983	2019
Dec 1983–May 1984 6-Month	15.75" (400.05mm)	14.73" (374.14mm)	1.02" (25.91mm)	99th Driest	Driest since: 1981	1931
Dec 1983–May 1984 6-Month	15.75" (400.05mm)	14.73" (374.14mm)	1.02" (25.91mm)	29th Wettest	Wettest since: 1983	2019
Nov 1983–May 1984 7-Month	19.67" (499.62mm)	16.96" (430.78mm)	2.71" (68.84mm)	118th Driest	Driest since: 1982	1934
Nov 1983–May 1984 7-Month	19.67" (499.62mm)	16.96" (430.78mm)	2.71" (68.84mm)	10th Wettest	Wettest since: 1983	1983
Oct 1983–May 1984 8-Month	22.28" (565.91mm)	19.13" (485.90mm)	3.15" (80.01mm)	122nd Driest	Driest since: 1982	1934
Oct 1983–May 1984 8-Month	22.28" (565.91mm)	19.13" (485.90mm)	3.15" (80.01mm)	6th Wettest	Wettest since: 1983	2019
Sep 1983–May 1984 9-Month	24.54" (623.32mm)	21.62" (549.15mm)	2.92" (74.17mm)	119th Driest	Driest since: 1982	1934
Sep 1983–May 1984 9-Month	24.54" (623.32mm)	21.62" (549.15mm)	2.92" (74.17mm)	9th Wettest	Wettest since: 1983	2019
Aug 1983–May 1984 10-Month	26.91" (683.51mm)	24.25" (615.95mm)	2.66" (67.56mm)	114th Driest	Driest since: 1982	1918
Aug 1983–May 1984 10-Month	26.91" (683.51mm)	24.25" (615.95mm)	2.66" (67.56mm)	14th Wettest	Wettest since: 1983	2019
Jul 1983–May 1984 11-Month	28.99" (736.35mm)	27.03" (686.56mm)	1.96" (49.79mm)	104th Driest	Driest since: 1982	1931
Jul 1983–May 1984 11-Month	28.99" (736.35mm)	27.03" (686.56mm)	1.96" (49.79mm)	24th Wettest	Wettest since: 1983	2019
Jun 1983–May 1984 12-Month	31.94" (811.28mm)	29.95" (760.73mm)	1.99" (50.55mm)	100th Driest	Driest since: 1981	1934
Jun 1983–May 1984 12-Month	31.94" (811.28mm)	29.95" (760.73mm)	1.99" (50.55mm)	28th Wettest	Wettest since: 1983	2019
Dec 1982–May 1984 18-Month	50.83" (1,291.08mm)	44.70" (1,135.38mm)	6.13" (155.70mm)	122nd Driest	Driest since: 1982	1931
Dec 1982–May 1984 18-Month	50.83" (1,291.08mm)	44.70" (1,135.38mm)	6.13" (155.70mm)	5th Wettest	Wettest since: 1983	2019
Jun 1982–May 1984 24-Month	67.41" (1,712.21mm)	59.92" (1,521.97mm)	7.49" (190.24mm)	120th Driest	Driest since: 1982	1931
Jun 1982–May 1984 24-Month	67.41" (1,712.21mm)	59.92" (1,521.97mm)	7.49" (190.24mm)	7th Wettest	Wettest since: 1983	2020
Jun 1981–May 1984 36-Month	99.79" (2,534.67mm)	89.88" (2,282.95mm)	9.91" (251.72mm)	121st Driest	Driest since: 1983	1955
Jun 1981–May 1984 36-Month	99.79" (2,534.67mm)	89.88" (2,282.95mm)	9.91" (251.72mm)	5th Wettest	Wettest since: 1975	2019
Jun 1980–May 1984 48-Month	125.73" (3,193.54mm)	119.78" (3,042.41mm)	5.95" (151.13mm)	103rd Driest	Driest since: 1983	1956
Jun 1980–May 1984 48-Month	125.73" (3,193.54mm)	119.78" (3,042.41mm)	5.95" (151.13mm)	22nd Wettest	Wettest since: 1976	2019
Jun 1979–May 1984 60-Month	156.90" (3,985.26mm)	149.64" (3,800.86mm)	7.26" (184.40mm)	105th Driest	Driest since: 1983	1957
Jun 1979–May 1984 60-Month	156.90" (3,985.26mm)	149.64" (3,800.86mm)	7.26" (184.40mm)	19th Wettest	Wettest since: 1976	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published May 2023, retrieved on June 6, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings