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, August 1915

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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
August 1915 1-Month	3.43" (87.12mm)	2.62" (66.55mm)	0.81" (20.57mm)	126th Driest	Driest since: 1914	1929
	3.43" (87.12mm)	2.62" (66.55mm)	0.81" (20.57mm)	3rd Wettest	Wettest to Date	1977
	Ties: 1974
Jul–Aug 1915 2-Month	7.00" (177.80mm)	5.40" (137.16mm)	1.60" (40.64mm)	128th Driest	Driest since: 1914	1930
Jul–Aug 1915 2-Month	7.00" (177.80mm)	5.40" (137.16mm)	1.60" (40.64mm)	1st Wettest	Wettest to Date	1915
Jun–Aug 1915 3-Month	10.18" (258.57mm)	8.32" (211.33mm)	1.86" (47.24mm)	127th Driest	Driest since: 1914	1930
Jun–Aug 1915 3-Month	10.18" (258.57mm)	8.32" (211.33mm)	1.86" (47.24mm)	2nd Wettest	Wettest to Date	1928
May–Aug 1915 4-Month	14.07" (357.38mm)	11.23" (285.24mm)	2.84" (72.14mm)	128th Driest	Driest since: 1914	1936
May–Aug 1915 4-Month	14.07" (357.38mm)	11.23" (285.24mm)	2.84" (72.14mm)	1st Wettest	Wettest to Date	1915
Apr–Aug 1915 5-Month	16.39" (416.31mm)	13.75" (349.25mm)	2.64" (67.06mm)	126th Driest	Driest since: 1914	1934
Apr–Aug 1915 5-Month	16.39" (416.31mm)	13.75" (349.25mm)	2.64" (67.06mm)	3rd Wettest	Wettest to Date	2019
Mar–Aug 1915 6-Month	17.90" (454.66mm)	16.26" (413.00mm)	1.64" (41.66mm)	112th Driest	Driest since: 1914	1936
Mar–Aug 1915 6-Month	17.90" (454.66mm)	16.26" (413.00mm)	1.64" (41.66mm)	17th Wettest	Wettest since: 1912	1905
Feb–Aug 1915 7-Month	20.67" (525.02mm)	18.40" (467.36mm)	2.27" (57.66mm)	122nd Driest	Driest since: 1914	1934
Feb–Aug 1915 7-Month	20.67" (525.02mm)	18.40" (467.36mm)	2.27" (57.66mm)	7th Wettest	Wettest since: 1908	2019
Jan–Aug 1915 8-Month	23.42" (594.87mm)	20.71" (526.03mm)	2.71" (68.84mm)	122nd Driest	Driest since: 1914	1934
Jan–Aug 1915 8-Month	23.42" (594.87mm)	20.71" (526.03mm)	2.71" (68.84mm)	7th Wettest	Wettest to Date	2019
Dec 1914–Aug 1915 9-Month	25.92" (658.37mm)	23.05" (585.47mm)	2.87" (72.90mm)	120th Driest	Driest since: 1914	1931
Dec 1914–Aug 1915 9-Month	25.92" (658.37mm)	23.05" (585.47mm)	2.87" (72.90mm)	8th Wettest	Wettest to Date	2019
Nov 1914–Aug 1915 10-Month	27.43" (696.72mm)	25.28" (642.11mm)	2.15" (54.61mm)	110th Driest	Driest since: 1914	1934
Nov 1914–Aug 1915 10-Month	27.43" (696.72mm)	25.28" (642.11mm)	2.15" (54.61mm)	18th Wettest	Wettest since: 1908	2019
Oct 1914–Aug 1915 11-Month	29.94" (760.48mm)	27.45" (697.23mm)	2.49" (63.25mm)	111th Driest	Driest since: 1914	1934
Oct 1914–Aug 1915 11-Month	29.94" (760.48mm)	27.45" (697.23mm)	2.49" (63.25mm)	17th Wettest	Wettest since: 1903	2019
Sep 1914–Aug 1915 12-Month	32.12" (815.85mm)	29.94" (760.48mm)	2.18" (55.37mm)	105th Driest	Driest since: 1914	1934
Sep 1914–Aug 1915 12-Month	32.12" (815.85mm)	29.94" (760.48mm)	2.18" (55.37mm)	23rd Wettest	Wettest since: 1912	2019
Mar 1914–Aug 1915 18-Month	47.65" (1,210.31mm)	46.22" (1,173.99mm)	1.43" (36.32mm)	86th Driest	Driest since: 1914	1931
Mar 1914–Aug 1915 18-Month	47.65" (1,210.31mm)	46.22" (1,173.99mm)	1.43" (36.32mm)	42nd Wettest	Wettest since: 1908	2019
Sep 1913–Aug 1915 24-Month	62.50" (1,587.50mm)	59.92" (1,521.97mm)	2.58" (65.53mm)	94th Driest	Driest since: 1914	1918
Sep 1913–Aug 1915 24-Month	62.50" (1,587.50mm)	59.92" (1,521.97mm)	2.58" (65.53mm)	33rd Wettest	Wettest since: 1908	2020
Sep 1912–Aug 1915 36-Month	90.33" (2,294.38mm)	89.86" (2,282.44mm)	0.47" (11.94mm)	67th Driest	Driest since: 1913	1956
Sep 1912–Aug 1915 36-Month	90.33" (2,294.38mm)	89.86" (2,282.44mm)	0.47" (11.94mm)	59th Wettest	Wettest since: 1914	2019
Sep 1911–Aug 1915 48-Month	122.85" (3,120.39mm)	119.77" (3,042.16mm)	3.08" (78.23mm)	87th Driest	Driest since: 1914	1956
Sep 1911–Aug 1915 48-Month	122.85" (3,120.39mm)	119.77" (3,042.16mm)	3.08" (78.23mm)	38th Wettest	Wettest since: 1909	2019
Sep 1910–Aug 1915 60-Month	149.73" (3,803.14mm)	149.64" (3,800.86mm)	0.09" (2.28mm)	62nd Driest	Driest since: 1914	1934
Sep 1910–Aug 1915 60-Month	149.73" (3,803.14mm)	149.64" (3,800.86mm)	0.09" (2.28mm)	62nd Wettest	Wettest since: 1910	2019

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published May 2023, retrieved on June 4, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings