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 1904

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
May 1904 1-Month	2.59" (65.79mm)	2.91" (73.91mm)	-0.32" (-8.12mm)	29th Driest	Driest since: 1900	1934
	2.59" (65.79mm)	2.91" (73.91mm)	-0.32" (-8.12mm)	100th Wettest	Wettest since: 1903	2019
	Ties: 1910, 1918
Apr–May 1904 2-Month	4.71" (119.63mm)	5.43" (137.92mm)	-0.72" (-18.29mm)	19th Driest	Driest since: 1899	1934
Apr–May 1904 2-Month	4.71" (119.63mm)	5.43" (137.92mm)	-0.72" (-18.29mm)	110th Wettest	Wettest since: 1903	1957
Mar–May 1904 3-Month	7.81" (198.37mm)	7.94" (201.68mm)	-0.13" (-3.31mm)	59th Driest	Driest since: 1902	1925
Mar–May 1904 3-Month	7.81" (198.37mm)	7.94" (201.68mm)	-0.13" (-3.31mm)	70th Wettest	Wettest since: 1903	1957, 1991
Feb–May 1904 4-Month	10.24" (260.10mm)	10.07" (255.78mm)	0.17" (4.32mm)	76th Driest	Driest since: 1901	1925
Feb–May 1904 4-Month	10.24" (260.10mm)	10.07" (255.78mm)	0.17" (4.32mm)	53rd Wettest	Wettest since: 1903	2019
Jan–May 1904 5-Month	12.05" (306.07mm)	12.39" (314.71mm)	-0.34" (-8.64mm)	59th Driest	Driest since: 1902	1934
Jan–May 1904 5-Month	12.05" (306.07mm)	12.39" (314.71mm)	-0.34" (-8.64mm)	70th Wettest	Wettest since: 1903	2019
Dec 1903–May 1904 6-Month	13.49" (342.65mm)	14.73" (374.14mm)	-1.24" (-31.49mm)	23rd Driest	Driest since: 1901	1931
Dec 1903–May 1904 6-Month	13.49" (342.65mm)	14.73" (374.14mm)	-1.24" (-31.49mm)	105th Wettest	Wettest since: 1903	2019
Nov 1903–May 1904 7-Month	15.32" (389.13mm)	16.96" (430.78mm)	-1.64" (-41.65mm)	15th Driest	Driest since: 1904	1934
Nov 1903–May 1904 7-Month	15.32" (389.13mm)	16.96" (430.78mm)	-1.64" (-41.65mm)	113th Wettest	Wettest since: 1903	1983
Oct 1903–May 1904 8-Month	17.09" (434.09mm)	19.13" (485.90mm)	-2.04" (-51.81mm)	17th Driest	Driest since: 1904	1934
Oct 1903–May 1904 8-Month	17.09" (434.09mm)	19.13" (485.90mm)	-2.04" (-51.81mm)	111th Wettest	Wettest since: 1903	2019
Sep 1903–May 1904 9-Month	19.21" (487.93mm)	21.62" (549.15mm)	-2.41" (-61.22mm)	14th Driest	Driest since: 1904	1934
Sep 1903–May 1904 9-Month	19.21" (487.93mm)	21.62" (549.15mm)	-2.41" (-61.22mm)	114th Wettest	Wettest since: 1903	2019
Aug 1903–May 1904 10-Month	22.25" (565.15mm)	24.25" (615.95mm)	-2.00" (-50.80mm)	19th Driest	Driest since: 1904	1918
Aug 1903–May 1904 10-Month	22.25" (565.15mm)	24.25" (615.95mm)	-2.00" (-50.80mm)	109th Wettest	Wettest since: 1903	2019
Jul 1903–May 1904 11-Month	25.22" (640.59mm)	27.03" (686.56mm)	-1.81" (-45.97mm)	23rd Driest	Driest since: 1902	1931
Jul 1903–May 1904 11-Month	25.22" (640.59mm)	27.03" (686.56mm)	-1.81" (-45.97mm)	105th Wettest	Wettest since: 1903	2019
Jun 1903–May 1904 12-Month	28.10" (713.74mm)	29.95" (760.73mm)	-1.85" (-46.99mm)	25th Driest	Driest since: 1902	1934
Jun 1903–May 1904 12-Month	28.10" (713.74mm)	29.95" (760.73mm)	-1.85" (-46.99mm)	103rd Wettest	Wettest since: 1903	2019
Dec 1902–May 1904 18-Month	44.34" (1,126.24mm)	44.70" (1,135.38mm)	-0.36" (-9.14mm)	54th Driest	Driest since: 1902	1931
Dec 1902–May 1904 18-Month	44.34" (1,126.24mm)	44.70" (1,135.38mm)	-0.36" (-9.14mm)	73rd Wettest	Wettest since: 1903	2019
Jun 1902–May 1904 24-Month	60.28" (1,531.11mm)	59.92" (1,521.97mm)	0.36" (9.14mm)	65th Driest	Driest since: 1903	1931
Jun 1902–May 1904 24-Month	60.28" (1,531.11mm)	59.92" (1,521.97mm)	0.36" (9.14mm)	62nd Wettest	Wettest to Date	2020
Jun 1901–May 1904 36-Month	88.07" (2,236.98mm)	89.88" (2,282.95mm)	-1.81" (-45.97mm)	41st Driest	Driest since: 1902	1955
Jun 1901–May 1904 36-Month	88.07" (2,236.98mm)	89.88" (2,282.95mm)	-1.81" (-45.97mm)	85th Wettest	Wettest since: 1903	2019
Jun 1900–May 1904 48-Month	117.90" (2,994.66mm)	119.78" (3,042.41mm)	-1.88" (-47.75mm)	45th Driest	Driest since: 1902	1956
Jun 1900–May 1904 48-Month	117.90" (2,994.66mm)	119.78" (3,042.41mm)	-1.88" (-47.75mm)	80th Wettest	Wettest since: 1903	2019
Jun 1899–May 1904 60-Month	146.78" (3,728.21mm)	149.64" (3,800.86mm)	-2.86" (-72.65mm)	35th Driest	Driest since: 1902	1957
Jun 1899–May 1904 60-Month	146.78" (3,728.21mm)	149.64" (3,800.86mm)	-2.86" (-72.65mm)	89th Wettest	Wettest since: 1903	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published January 2023, retrieved on February 3, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings