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, September 1928

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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
September 1928 1-Month	2.11" (53.59mm)	2.49" (63.25mm)	-0.38" (-9.66mm)	22nd Driest	Driest since: 1922	1956
	2.11" (53.59mm)	2.49" (63.25mm)	-0.38" (-9.66mm)	107th Wettest	Wettest since: 1927	1986
	Ties: 1955
Aug–Sep 1928 2-Month	5.26" (133.60mm)	5.11" (129.79mm)	0.15" (3.81mm)	82nd Driest	Driest since: 1927	1956
	5.26" (133.60mm)	5.11" (129.79mm)	0.15" (3.81mm)	47th Wettest	Wettest since: 1926	1977
	Ties: 1933
Jul–Sep 1928 3-Month	8.33" (211.58mm)	7.88" (200.15mm)	0.45" (11.43mm)	92nd Driest	Driest since: 1927	1930
Jul–Sep 1928 3-Month	8.33" (211.58mm)	7.88" (200.15mm)	0.45" (11.43mm)	37th Wettest	Wettest since: 1926	1915
Jun–Sep 1928 4-Month	12.61" (320.29mm)	10.81" (274.57mm)	1.80" (45.72mm)	125th Driest	Driest since: 1927	1930
Jun–Sep 1928 4-Month	12.61" (320.29mm)	10.81" (274.57mm)	1.80" (45.72mm)	4th Wettest	Wettest since: 1915	1915
May–Sep 1928 5-Month	14.95" (379.73mm)	13.72" (348.49mm)	1.23" (31.24mm)	109th Driest	Driest since: 1927	1956
May–Sep 1928 5-Month	14.95" (379.73mm)	13.72" (348.49mm)	1.23" (31.24mm)	20th Wettest	Wettest since: 1915	1915
Apr–Sep 1928 6-Month	17.87" (453.90mm)	16.24" (412.50mm)	1.63" (41.40mm)	113th Driest	Driest since: 1927	1956
Apr–Sep 1928 6-Month	17.87" (453.90mm)	16.24" (412.50mm)	1.63" (41.40mm)	16th Wettest	Wettest since: 1915	1915
Mar–Sep 1928 7-Month	20.26" (514.60mm)	18.75" (476.25mm)	1.51" (38.35mm)	106th Driest	Driest since: 1927	1956
Mar–Sep 1928 7-Month	20.26" (514.60mm)	18.75" (476.25mm)	1.51" (38.35mm)	23rd Wettest	Wettest since: 1920	1973
Feb–Sep 1928 8-Month	22.10" (561.34mm)	20.88" (530.35mm)	1.22" (30.99mm)	94th Driest	Driest since: 1926	1930
	22.10" (561.34mm)	20.88" (530.35mm)	1.22" (30.99mm)	35th Wettest	Wettest since: 1927	2019
	Ties: 1996
Jan–Sep 1928 9-Month	23.38" (593.85mm)	23.20" (589.28mm)	0.18" (4.57mm)	68th Driest	Driest since: 1926	1934
	23.38" (593.85mm)	23.20" (589.28mm)	0.18" (4.57mm)	61st Wettest	Wettest since: 1927	2019
	Ties: 1929
Dec 1927–Sep 1928 10-Month	26.06" (661.92mm)	25.54" (648.72mm)	0.52" (13.20mm)	74th Driest	Driest since: 1926	1931
Dec 1927–Sep 1928 10-Month	26.06" (661.92mm)	25.54" (648.72mm)	0.52" (13.20mm)	54th Wettest	Wettest since: 1927	2019
Nov 1927–Sep 1928 11-Month	28.81" (731.77mm)	27.77" (705.36mm)	1.04" (26.41mm)	87th Driest	Driest since: 1926	1934
Nov 1927–Sep 1928 11-Month	28.81" (731.77mm)	27.77" (705.36mm)	1.04" (26.41mm)	41st Wettest	Wettest since: 1927	2019
Oct 1927–Sep 1928 12-Month	31.16" (791.46mm)	29.94" (760.48mm)	1.22" (30.98mm)	85th Driest	Driest since: 1926	1934
Oct 1927–Sep 1928 12-Month	31.16" (791.46mm)	29.94" (760.48mm)	1.22" (30.98mm)	43rd Wettest	Wettest since: 1927	2019
Apr 1927–Sep 1928 18-Month	48.36" (1,228.34mm)	46.20" (1,173.48mm)	2.16" (54.86mm)	92nd Driest	Driest since: 1926	1931
Apr 1927–Sep 1928 18-Month	48.36" (1,228.34mm)	46.20" (1,173.48mm)	2.16" (54.86mm)	36th Wettest	Wettest since: 1927	2019
Oct 1926–Sep 1928 24-Month	63.47" (1,612.14mm)	59.92" (1,521.97mm)	3.55" (90.17mm)	104th Driest	Driest since: 1927	1918
	63.47" (1,612.14mm)	59.92" (1,521.97mm)	3.55" (90.17mm)	23rd Wettest	Wettest since: 1920	2020
	Ties: 1907
Oct 1925–Sep 1928 36-Month	93.19" (2,367.03mm)	89.87" (2,282.70mm)	3.32" (84.33mm)	96th Driest	Driest since: 1927	1956
Oct 1925–Sep 1928 36-Month	93.19" (2,367.03mm)	89.87" (2,282.70mm)	3.32" (84.33mm)	30th Wettest	Wettest since: 1921	2019
Oct 1924–Sep 1928 48-Month	118.86" (3,019.04mm)	119.78" (3,042.41mm)	-0.92" (-23.37mm)	51st Driest	Driest since: 1927	1956
Oct 1924–Sep 1928 48-Month	118.86" (3,019.04mm)	119.78" (3,042.41mm)	-0.92" (-23.37mm)	74th Wettest	Wettest since: 1923	2019
Oct 1923–Sep 1928 60-Month	147.10" (3,736.34mm)	149.66" (3,801.36mm)	-2.56" (-65.02mm)	37th Driest	Driest since: 1927	1956
Oct 1923–Sep 1928 60-Month	147.10" (3,736.34mm)	149.66" (3,801.36mm)	-2.56" (-65.02mm)	87th Wettest	Wettest since: 1924	2020

Citing This Page

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