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, July 1928

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
July 1928 1-Month	3.07" (77.98mm)	2.78" (70.61mm)	0.29" (7.37mm)	105th Driest	Driest since: 1927	1930
	3.07" (77.98mm)	2.78" (70.61mm)	0.29" (7.37mm)	24th Wettest	Wettest since: 1916	1950, 1958
	Ties: 1900, 2009
Jun–Jul 1928 2-Month	7.35" (186.69mm)	5.70" (144.78mm)	1.65" (41.91mm)	128th Driest	Driest since: 1927	1930
Jun–Jul 1928 2-Month	7.35" (186.69mm)	5.70" (144.78mm)	1.65" (41.91mm)	1st Wettest	Wettest to Date	1928
May–Jul 1928 3-Month	9.69" (246.13mm)	8.62" (218.95mm)	1.07" (27.18mm)	114th Driest	Driest since: 1927	1988
May–Jul 1928 3-Month	9.69" (246.13mm)	8.62" (218.95mm)	1.07" (27.18mm)	15th Wettest	Wettest since: 1915	2015
Apr–Jul 1928 4-Month	12.61" (320.29mm)	11.13" (282.70mm)	1.48" (37.59mm)	117th Driest	Driest since: 1927	1934
	12.61" (320.29mm)	11.13" (282.70mm)	1.48" (37.59mm)	12th Wettest	Wettest since: 1915	2015
	Ties: 1991
Mar–Jul 1928 5-Month	15.00" (381.00mm)	13.64" (346.46mm)	1.36" (34.54mm)	110th Driest	Driest since: 1927	1936
Mar–Jul 1928 5-Month	15.00" (381.00mm)	13.64" (346.46mm)	1.36" (34.54mm)	19th Wettest	Wettest since: 1922	1973
Feb–Jul 1928 6-Month	16.84" (427.74mm)	15.78" (400.81mm)	1.06" (26.93mm)	97th Driest	Driest since: 1926	1934
Feb–Jul 1928 6-Month	16.84" (427.74mm)	15.78" (400.81mm)	1.06" (26.93mm)	32nd Wettest	Wettest since: 1927	2019
Jan–Jul 1928 7-Month	18.12" (460.25mm)	18.09" (459.49mm)	0.03" (0.76mm)	64th Driest	Driest since: 1926	1934
Jan–Jul 1928 7-Month	18.12" (460.25mm)	18.09" (459.49mm)	0.03" (0.76mm)	65th Wettest	Wettest since: 1927	2019
Dec 1927–Jul 1928 8-Month	20.80" (528.32mm)	20.43" (518.92mm)	0.37" (9.40mm)	67th Driest	Driest since: 1926	1931
	20.80" (528.32mm)	20.43" (518.92mm)	0.37" (9.40mm)	61st Wettest	Wettest since: 1927	2019
	Ties: 1896
Nov 1927–Jul 1928 9-Month	23.55" (598.17mm)	22.66" (575.56mm)	0.89" (22.61mm)	81st Driest	Driest since: 1926	1934
Nov 1927–Jul 1928 9-Month	23.55" (598.17mm)	22.66" (575.56mm)	0.89" (22.61mm)	47th Wettest	Wettest since: 1927	2019
Oct 1927–Jul 1928 10-Month	25.90" (657.86mm)	24.83" (630.68mm)	1.07" (27.18mm)	87th Driest	Driest since: 1926	1934
	25.90" (657.86mm)	24.83" (630.68mm)	1.07" (27.18mm)	41st Wettest	Wettest since: 1927	2019
	Ties: 1957
Sep 1927–Jul 1928 11-Month	28.38" (720.85mm)	27.33" (694.18mm)	1.05" (26.67mm)	83rd Driest	Driest since: 1926	1934
Sep 1927–Jul 1928 11-Month	28.38" (720.85mm)	27.33" (694.18mm)	1.05" (26.67mm)	45th Wettest	Wettest since: 1927	2019
Aug 1927–Jul 1928 12-Month	31.10" (789.94mm)	29.95" (760.73mm)	1.15" (29.21mm)	88th Driest	Driest since: 1926	1918
Aug 1927–Jul 1928 12-Month	31.10" (789.94mm)	29.95" (760.73mm)	1.15" (29.21mm)	40th Wettest	Wettest since: 1927	2019
Feb 1927–Jul 1928 18-Month	48.41" (1,229.61mm)	45.74" (1,161.80mm)	2.67" (67.81mm)	102nd Driest	Driest since: 1927	1931
Feb 1927–Jul 1928 18-Month	48.41" (1,229.61mm)	45.74" (1,161.80mm)	2.67" (67.81mm)	26th Wettest	Wettest since: 1916	2019
Aug 1926–Jul 1928 24-Month	64.66" (1,642.36mm)	59.92" (1,521.97mm)	4.74" (120.39mm)	112th Driest	Driest since: 1927	1918
Aug 1926–Jul 1928 24-Month	64.66" (1,642.36mm)	59.92" (1,521.97mm)	4.74" (120.39mm)	15th Wettest	Wettest to Date	2020
Aug 1925–Jul 1928 36-Month	92.87" (2,358.90mm)	89.88" (2,282.95mm)	2.99" (75.95mm)	91st Driest	Driest since: 1927	1956
	92.87" (2,358.90mm)	89.88" (2,282.95mm)	2.99" (75.95mm)	35th Wettest	Wettest since: 1921	2019
	Ties: 1916
Aug 1924–Jul 1928 48-Month	118.73" (3,015.74mm)	119.78" (3,042.41mm)	-1.05" (-26.67mm)	51st Driest	Driest since: 1927	1956
Aug 1924–Jul 1928 48-Month	118.73" (3,015.74mm)	119.78" (3,042.41mm)	-1.05" (-26.67mm)	74th Wettest	Wettest since: 1924	2019
Aug 1923–Jul 1928 60-Month	147.59" (3,748.79mm)	149.64" (3,800.86mm)	-2.05" (-52.07mm)	42nd Driest	Driest since: 1927	1934
Aug 1923–Jul 1928 60-Month	147.59" (3,748.79mm)	149.64" (3,800.86mm)	-2.05" (-52.07mm)	82nd Wettest	Wettest since: 1924	2019

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