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 1937

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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 1937 1-Month	2.33" (59.18mm)	2.91" (73.91mm)	-0.58" (-14.73mm)	15th Driest	Driest since: 1936	1934
May 1937 1-Month	2.33" (59.18mm)	2.91" (73.91mm)	-0.58" (-14.73mm)	114th Wettest	Wettest since: 1935	2019
Apr–May 1937 2-Month	5.01" (127.25mm)	5.43" (137.92mm)	-0.42" (-10.67mm)	37th Driest	Driest since: 1936	1934
Apr–May 1937 2-Month	5.01" (127.25mm)	5.43" (137.92mm)	-0.42" (-10.67mm)	92nd Wettest	Wettest since: 1935	1957
Mar–May 1937 3-Month	7.16" (181.86mm)	7.94" (201.68mm)	-0.78" (-19.82mm)	26th Driest	Driest since: 1936	1925
Mar–May 1937 3-Month	7.16" (181.86mm)	7.94" (201.68mm)	-0.78" (-19.82mm)	103rd Wettest	Wettest since: 1935	1957, 1991
Feb–May 1937 4-Month	9.38" (238.25mm)	10.07" (255.78mm)	-0.69" (-17.53mm)	31st Driest	Driest since: 1936	1925
	9.38" (238.25mm)	10.07" (255.78mm)	-0.69" (-17.53mm)	98th Wettest	Wettest since: 1935	2019
	Ties: 1969
Jan–May 1937 5-Month	13.03" (330.96mm)	12.39" (314.71mm)	0.64" (16.25mm)	92nd Driest	Driest since: 1936	1934
Jan–May 1937 5-Month	13.03" (330.96mm)	12.39" (314.71mm)	0.64" (16.25mm)	37th Wettest	Wettest since: 1935	2019
Dec 1936–May 1937 6-Month	15.82" (401.83mm)	14.73" (374.14mm)	1.09" (27.69mm)	101st Driest	Driest since: 1936	1931
Dec 1936–May 1937 6-Month	15.82" (401.83mm)	14.73" (374.14mm)	1.09" (27.69mm)	27th Wettest	Wettest since: 1922	2019
Nov 1936–May 1937 7-Month	16.96" (430.78mm)	16.96" (430.78mm)	0.00" (0.00mm)	65th Driest	Driest since: 1936	1934
Nov 1936–May 1937 7-Month	16.96" (430.78mm)	16.96" (430.78mm)	0.00" (0.00mm)	63rd Wettest	Wettest since: 1935	1983
Oct 1936–May 1937 8-Month	19.04" (483.62mm)	19.13" (485.90mm)	-0.09" (-2.28mm)	62nd Driest	Driest since: 1936	1934
Oct 1936–May 1937 8-Month	19.04" (483.62mm)	19.13" (485.90mm)	-0.09" (-2.28mm)	66th Wettest	Wettest since: 1935	2019
Sep 1936–May 1937 9-Month	22.03" (559.56mm)	21.62" (549.15mm)	0.41" (10.41mm)	74th Driest	Driest since: 1936	1934
	22.03" (559.56mm)	21.62" (549.15mm)	0.41" (10.41mm)	54th Wettest	Wettest since: 1935	2019
	Ties: 1943
Aug 1936–May 1937 10-Month	24.24" (615.70mm)	24.25" (615.95mm)	-0.01" (-0.25mm)	63rd Driest	Driest since: 1936	1918
Aug 1936–May 1937 10-Month	24.24" (615.70mm)	24.25" (615.95mm)	-0.01" (-0.25mm)	65th Wettest	Wettest since: 1935	2019
Jul 1936–May 1937 11-Month	26.55" (674.37mm)	27.03" (686.56mm)	-0.48" (-12.19mm)	48th Driest	Driest since: 1936	1931
Jul 1936–May 1937 11-Month	26.55" (674.37mm)	27.03" (686.56mm)	-0.48" (-12.19mm)	80th Wettest	Wettest since: 1935	2019
Jun 1936–May 1937 12-Month	28.46" (722.88mm)	29.95" (760.73mm)	-1.49" (-37.85mm)	33rd Driest	Driest since: 1936	1934
	28.46" (722.88mm)	29.95" (760.73mm)	-1.49" (-37.85mm)	95th Wettest	Wettest since: 1935	2019
	Ties: 1923
Dec 1935–May 1937 18-Month	42.08" (1,068.83mm)	44.70" (1,135.38mm)	-2.62" (-66.55mm)	23rd Driest	Driest since: 1935	1931
Dec 1935–May 1937 18-Month	42.08" (1,068.83mm)	44.70" (1,135.38mm)	-2.62" (-66.55mm)	104th Wettest	Wettest since: 1936	2019
Jun 1935–May 1937 24-Month	56.50" (1,435.10mm)	59.92" (1,521.97mm)	-3.42" (-86.87mm)	21st Driest	Driest since: 1935	1931
Jun 1935–May 1937 24-Month	56.50" (1,435.10mm)	59.92" (1,521.97mm)	-3.42" (-86.87mm)	106th Wettest	Wettest since: 1936	2020
Jun 1934–May 1937 36-Month	86.19" (2,189.23mm)	89.88" (2,282.95mm)	-3.69" (-93.72mm)	22nd Driest	Driest since: 1936	1955
Jun 1934–May 1937 36-Month	86.19" (2,189.23mm)	89.88" (2,282.95mm)	-3.69" (-93.72mm)	104th Wettest	Wettest since: 1930	2019
Jun 1933–May 1937 48-Month	110.49" (2,806.45mm)	119.78" (3,042.41mm)	-9.29" (-235.96mm)	4th Driest	Driest since: 1934	1956
Jun 1933–May 1937 48-Month	110.49" (2,806.45mm)	119.78" (3,042.41mm)	-9.29" (-235.96mm)	121st Wettest	Wettest since: 1936	2019
Jun 1932–May 1937 60-Month	141.17" (3,585.72mm)	149.64" (3,800.86mm)	-8.47" (-215.14mm)	6th Driest	Driest since: 1935	1957
Jun 1932–May 1937 60-Month	141.17" (3,585.72mm)	149.64" (3,800.86mm)	-8.47" (-215.14mm)	118th Wettest	Wettest since: 1936	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published March 2023, retrieved on April 1, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings