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, January 1918

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
January 1918 1-Month	2.41" (61.21mm)	2.31" (58.67mm)	0.10" (2.54mm)	82nd Driest	Driest since: 1917	1981
January 1918 1-Month	2.41" (61.21mm)	2.31" (58.67mm)	0.10" (2.54mm)	47th Wettest	Wettest since: 1916	1916
Dec 1917–Jan 1918 2-Month	4.07" (103.38mm)	4.66" (118.36mm)	-0.59" (-14.98mm)	29th Driest	Driest since: 1904	1981
Dec 1917–Jan 1918 2-Month	4.07" (103.38mm)	4.66" (118.36mm)	-0.59" (-14.98mm)	99th Wettest	Wettest since: 1917	1932
Nov 1917–Jan 1918 3-Month	5.02" (127.51mm)	6.89" (175.01mm)	-1.87" (-47.50mm)	4th Driest	Driest since: 1918	1977
Nov 1917–Jan 1918 3-Month	5.02" (127.51mm)	6.89" (175.01mm)	-1.87" (-47.50mm)	124th Wettest	Wettest since: 1917	2016
Oct 1917–Jan 1918 4-Month	6.40" (162.56mm)	9.06" (230.12mm)	-2.66" (-67.56mm)	2nd Driest	Driest since: 1918	1981
	6.40" (162.56mm)	9.06" (230.12mm)	-2.66" (-67.56mm)	126th Wettest	Wettest since: 1917	2016
	Ties: 1940
Sep 1917–Jan 1918 5-Month	8.57" (217.68mm)	11.55" (293.37mm)	-2.98" (-75.69mm)	2nd Driest	Driest since: 1918	1940
Sep 1917–Jan 1918 5-Month	8.57" (217.68mm)	11.55" (293.37mm)	-2.98" (-75.69mm)	126th Wettest	Wettest since: 1917	2019
Aug 1917–Jan 1918 6-Month	11.01" (279.65mm)	14.17" (359.92mm)	-3.16" (-80.27mm)	4th Driest	Driest since: 1918	1940
Aug 1917–Jan 1918 6-Month	11.01" (279.65mm)	14.17" (359.92mm)	-3.16" (-80.27mm)	124th Wettest	Wettest since: 1917	2019
Jul 1917–Jan 1918 7-Month	13.52" (343.41mm)	16.96" (430.78mm)	-3.44" (-87.37mm)	4th Driest	Driest since: 1918	1940
Jul 1917–Jan 1918 7-Month	13.52" (343.41mm)	16.96" (430.78mm)	-3.44" (-87.37mm)	124th Wettest	Wettest since: 1917	2019
Jun 1917–Jan 1918 8-Month	15.96" (405.38mm)	19.88" (504.95mm)	-3.92" (-99.57mm)	3rd Driest	Driest since: 1918	1981
Jun 1917–Jan 1918 8-Month	15.96" (405.38mm)	19.88" (504.95mm)	-3.92" (-99.57mm)	125th Wettest	Wettest since: 1917	2019
May 1917–Jan 1918 9-Month	18.60" (472.44mm)	22.79" (578.87mm)	-4.19" (-106.43mm)	1st Driest	Driest since: 1918	1918
May 1917–Jan 1918 9-Month	18.60" (472.44mm)	22.79" (578.87mm)	-4.19" (-106.43mm)	127th Wettest	Wettest since: 1917	2016
Apr 1917–Jan 1918 10-Month	21.28" (540.51mm)	25.32" (643.13mm)	-4.04" (-102.62mm)	4th Driest	Driest since: 1918	1940
Apr 1917–Jan 1918 10-Month	21.28" (540.51mm)	25.32" (643.13mm)	-4.04" (-102.62mm)	124th Wettest	Wettest since: 1917	2016
Mar 1917–Jan 1918 11-Month	23.76" (603.50mm)	27.83" (706.88mm)	-4.07" (-103.38mm)	5th Driest	Driest since: 1911	1957
Mar 1917–Jan 1918 11-Month	23.76" (603.50mm)	27.83" (706.88mm)	-4.07" (-103.38mm)	123rd Wettest	Wettest since: 1917	1974
Feb 1917–Jan 1918 12-Month	25.57" (649.48mm)	29.96" (760.98mm)	-4.39" (-111.50mm)	5th Driest	Driest since: 1911	1931
Feb 1917–Jan 1918 12-Month	25.57" (649.48mm)	29.96" (760.98mm)	-4.39" (-111.50mm)	123rd Wettest	Wettest since: 1917	1974
Aug 1916–Jan 1918 18-Month	38.06" (966.72mm)	44.14" (1,121.16mm)	-6.08" (-154.44mm)	3rd Driest	Driest since: 1918	1955
Aug 1916–Jan 1918 18-Month	38.06" (966.72mm)	44.14" (1,121.16mm)	-6.08" (-154.44mm)	124th Wettest	Wettest since: 1917	2020
Feb 1916–Jan 1918 24-Month	53.39" (1,356.11mm)	59.93" (1,522.22mm)	-6.54" (-166.11mm)	1st Driest	Driest since: 1918	1918
Feb 1916–Jan 1918 24-Month	53.39" (1,356.11mm)	59.93" (1,522.22mm)	-6.54" (-166.11mm)	126th Wettest	Wettest since: 1917	2020
Feb 1915–Jan 1918 36-Month	87.20" (2,214.88mm)	89.86" (2,282.44mm)	-2.66" (-67.56mm)	33rd Driest	Driest since: 1913	1957
Feb 1915–Jan 1918 36-Month	87.20" (2,214.88mm)	89.86" (2,282.44mm)	-2.66" (-67.56mm)	93rd Wettest	Wettest since: 1917	2020
Feb 1914–Jan 1918 48-Month	116.26" (2,953.00mm)	119.76" (3,041.90mm)	-3.50" (-88.90mm)	30th Driest	Driest since: 1914	1957
Feb 1914–Jan 1918 48-Month	116.26" (2,953.00mm)	119.76" (3,041.90mm)	-3.50" (-88.90mm)	95th Wettest	Wettest since: 1917	2020
Feb 1913–Jan 1918 60-Month	145.73" (3,701.54mm)	149.63" (3,800.60mm)	-3.90" (-99.06mm)	28th Driest	Driest since: 1915	1957
	145.73" (3,701.54mm)	149.63" (3,800.60mm)	-3.90" (-99.06mm)	96th Wettest	Wettest since: 1917	2020
	Ties: 1927

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published January 2023, retrieved on February 5, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings